1913-2011 Tax Rate Schedules in NOMINAL dollars and INFLATION-ADJUSTED dollars and with the taxes computed ... "TAX FEVER,CATCH IT!"


Last updated: 2013 May 16 Thursday  17:49:52.542  Central Standard Time  = GMT/UTC-06:00
              2013 May 16 Thursday  23:49:52.542  Greenwich Mean Time    = GMT/UTC
JULIAN DATE= 2456429

You'll find the self-explanatory files below which have not only the tax rate
schedules for the 99 years of Federal Income Tax, but the actual taxes computed.

I found the following links to be tremendous resources. The first one saved me the trouble of trying to get the information from
the IRS directly or various libraries etc. In fact, if the first website had actually COMPUTED the actual tax due, I wouldn't have had any work at all to do!
And since it's now 2012 and not 2011, I thought it would be appropriate to INFLATION-ADJUST to 2012 and so I used the second website below to find the appropriate
yearly inflation-adjustment multiplier. The third one is the actual 1954 table from the IRS and it's the "real McCoy"

[ U.S. Federal Individual Income Tax Rates History, 1913-2011 (Nominal and Inflation-Adjusted Brackets) | CPI Inflation Calculator | The actual original 1954 IRS tax rate schedule ]
[ Statistics of Income ... 1954 ... Individual Income Tax Returns for 1954 ... on IRS Website ... go to page 114 and find above tax rate schedule ]
Email: Jeff Sagarin
[ Jeff's Sports Ratings | USA Today - Jeff Sagarin computer ratings ]



1913 tax rate schedule with ORIGINAL dollar figures(for SINGLE taxpayer)
Historical data for the marginal rates was obtained at the Tax Foundation website at [U.S. Federal Individual Income Tax Rates History, 1913-2011 (Nominal and Inflation-Adjusted Brackets)]
Computation of the actual taxes due and the effective overall tax rate at each level were done by Jeff Sagarin.

Not over $  20000 ...................................  1.00% of the taxable income       1.00% effective overall tax rate
Over $  20000 but not over $  50000    $    200, plus  2.00% of excess over $  20000     1.43% effective overall tax rate(computed on tax on middle of income range)
Over $  50000 but not over $  75000    $    800, plus  3.00% of excess over $  50000     1.88% effective overall tax rate(computed on tax on middle of income range)
Over $  75000 but not over $ 100000    $   1550, plus  4.00% of excess over $  75000     2.34% effective overall tax rate(computed on tax on middle of income range)
Over $ 100000 but not over $ 250000    $   2550, plus  5.00% of excess over $ 100000     3.60% effective overall tax rate(computed on tax on middle of income range)
Over $ 250000 but not over $ 500000    $  10050, plus  6.00% of excess over $ 250000     4.68% effective overall tax rate(computed on tax on middle of income range)
Over $ 500000 ........................ $  25050, plus  7.00% of excess over $ 500000     5.01% <=> 7.00% effective overall tax rate as income goes to infinity
1913 tax rate schedule with figures INFLATION-ADJUSTED to 2013 dollars(for SINGLE taxpayer) ... the multiplier is 23.308686869 based on the average of the last 12 monthly figures through and including April 2013 released in mid-May 2013)
Inflation multiplier was determined from Bureau of Labor Statistics at [CPI Inflation Calculator | Historical Consumer Price Index]
Computation of the actual taxes due and the effective overall tax rate at each level were done by Jeff Sagarin.

Not over $ 466174 ...................................  1.00% of the taxable income       1.00% effective overall tax rate
Over $ 466174 but not over $1165434    $   4662, plus  2.00% of excess over $ 466174     1.43% effective overall tax rate(computed on tax on middle of income range)
Over $1165434 but not over $1748152    $  18647, plus  3.00% of excess over $1165434     1.88% effective overall tax rate(computed on tax on middle of income range)
Over $1748152 but not over $2330869    $  36128, plus  4.00% of excess over $1748152     2.34% effective overall tax rate(computed on tax on middle of income range)
Over $2330869 but not over $5827172    $  59437, plus  5.00% of excess over $2330869     3.60% effective overall tax rate(computed on tax on middle of income range)
Over $5827172 but not over $11654343   $ 234252, plus  6.00% of excess over $5827172     4.68% effective overall tax rate(computed on tax on middle of income range)
Over $11654343 ........................$ 583883, plus  7.00% of excess over $11654343    5.01% <=> 7.00% effective overall tax rate as income goes to infinity
                                                                              1913     1954                                               using exact decimal values of taxes (not integers)
                                                                              ____     ____
taxable income in 2013 dollars $     10000     tax due in  2013 dollars $      100     2000     percentage of taxable income=  1.00%    for tax year 1913  percentage of 1954 taxes   5.00%
taxable income in 2013 dollars $     20000     tax due in  2013 dollars $      200     4057     percentage of taxable income=  1.00%    for tax year 1913  percentage of 1954 taxes   4.93%
taxable income in 2013 dollars $     30000     tax due in  2013 dollars $      300     6257     percentage of taxable income=  1.00%    for tax year 1913  percentage of 1954 taxes   4.79%
taxable income in 2013 dollars $     40000     tax due in  2013 dollars $      400     8684     percentage of taxable income=  1.00%    for tax year 1913  percentage of 1954 taxes   4.61%
taxable income in 2013 dollars $     50000     tax due in  2013 dollars $      500    11284     percentage of taxable income=  1.00%    for tax year 1913  percentage of 1954 taxes   4.43%
taxable income in 2013 dollars $     60000     tax due in  2013 dollars $      600    14226     percentage of taxable income=  1.00%    for tax year 1913  percentage of 1954 taxes   4.22%
taxable income in 2013 dollars $     70000     tax due in  2013 dollars $      700    17280     percentage of taxable income=  1.00%    for tax year 1913  percentage of 1954 taxes   4.05%
taxable income in 2013 dollars $     80000     tax due in  2013 dollars $      800    20680     percentage of taxable income=  1.00%    for tax year 1913  percentage of 1954 taxes   3.87%
taxable income in 2013 dollars $     90000     tax due in  2013 dollars $      900    24249     percentage of taxable income=  1.00%    for tax year 1913  percentage of 1954 taxes   3.71%
taxable income in 2013 dollars $    100000     tax due in  2013 dollars $     1000    28049     percentage of taxable income=  1.00%    for tax year 1913  percentage of 1954 taxes   3.57%
taxable income in 2013 dollars $    150000     tax due in  2013 dollars $     1500    50981     percentage of taxable income=  1.00%    for tax year 1913  percentage of 1954 taxes   2.94%
taxable income in 2013 dollars $    200000     tax due in  2013 dollars $     2000    78540     percentage of taxable income=  1.00%    for tax year 1913  percentage of 1954 taxes   2.55%
taxable income in 2013 dollars $    250000     tax due in  2013 dollars $     2500   108849     percentage of taxable income=  1.00%    for tax year 1913  percentage of 1954 taxes   2.30%
taxable income in 2013 dollars $    300000     tax due in  2013 dollars $     3000   140614     percentage of taxable income=  1.00%    for tax year 1913  percentage of 1954 taxes   2.13%
taxable income in 2013 dollars $    350000     tax due in  2013 dollars $     3500   174075     percentage of taxable income=  1.00%    for tax year 1913  percentage of 1954 taxes   2.01%
taxable income in 2013 dollars $    400000     tax due in  2013 dollars $     4000   209251     percentage of taxable income=  1.00%    for tax year 1913  percentage of 1954 taxes   1.91%
taxable income in 2013 dollars $    450000     tax due in  2013 dollars $     4500   245884     percentage of taxable income=  1.00%    for tax year 1913  percentage of 1954 taxes   1.83%
taxable income in 2013 dollars $    500000     tax due in  2013 dollars $     5338   283384     percentage of taxable income=  1.07%    for tax year 1913  percentage of 1954 taxes   1.88%
taxable income in 2013 dollars $    600000     tax due in  2013 dollars $     7338   360943     percentage of taxable income=  1.22%    for tax year 1913  percentage of 1954 taxes   2.03%
taxable income in 2013 dollars $    700000     tax due in  2013 dollars $     9338   442341     percentage of taxable income=  1.33%    for tax year 1913  percentage of 1954 taxes   2.11%
taxable income in 2013 dollars $    800000     tax due in  2013 dollars $    11338   527179     percentage of taxable income=  1.42%    for tax year 1913  percentage of 1954 taxes   2.15%
taxable income in 2013 dollars $    900000     tax due in  2013 dollars $    13338   615023     percentage of taxable income=  1.48%    for tax year 1913  percentage of 1954 taxes   2.17%
taxable income in 2013 dollars $   1000000     tax due in  2013 dollars $    15338   704023     percentage of taxable income=  1.53%    for tax year 1913  percentage of 1954 taxes   2.18%

1914 tax rate schedule with ORIGINAL dollar figures(for SINGLE taxpayer)
Historical data for the marginal rates was obtained at the Tax Foundation website at [U.S. Federal Individual Income Tax Rates History, 1913-2011 (Nominal and Inflation-Adjusted Brackets)]
Computation of the actual taxes due and the effective overall tax rate at each level were done by Jeff Sagarin.

Not over $  20000 ...................................  1.00% of the taxable income       1.00% effective overall tax rate
Over $  20000 but not over $  50000    $    200, plus  2.00% of excess over $  20000     1.43% effective overall tax rate(computed on tax on middle of income range)
Over $  50000 but not over $  75000    $    800, plus  3.00% of excess over $  50000     1.88% effective overall tax rate(computed on tax on middle of income range)
Over $  75000 but not over $ 100000    $   1550, plus  4.00% of excess over $  75000     2.34% effective overall tax rate(computed on tax on middle of income range)
Over $ 100000 but not over $ 250000    $   2550, plus  5.00% of excess over $ 100000     3.60% effective overall tax rate(computed on tax on middle of income range)
Over $ 250000 but not over $ 500000    $  10050, plus  6.00% of excess over $ 250000     4.68% effective overall tax rate(computed on tax on middle of income range)
Over $ 500000 ........................ $  25050, plus  7.00% of excess over $ 500000     5.01% <=> 7.00% effective overall tax rate as income goes to infinity
1914 tax rate schedule with figures INFLATION-ADJUSTED to 2013 dollars(for SINGLE taxpayer) ... the multiplier is 23.075600000 based on the average of the last 12 monthly figures through and including April 2013 released in mid-May 2013)
Inflation multiplier was determined from Bureau of Labor Statistics at [CPI Inflation Calculator | Historical Consumer Price Index]
Computation of the actual taxes due and the effective overall tax rate at each level were done by Jeff Sagarin.

Not over $ 461512 ...................................  1.00% of the taxable income       1.00% effective overall tax rate
Over $ 461512 but not over $1153780    $   4615, plus  2.00% of excess over $ 461512     1.43% effective overall tax rate(computed on tax on middle of income range)
Over $1153780 but not over $1730670    $  18460, plus  3.00% of excess over $1153780     1.88% effective overall tax rate(computed on tax on middle of income range)
Over $1730670 but not over $2307560    $  35767, plus  4.00% of excess over $1730670     2.34% effective overall tax rate(computed on tax on middle of income range)
Over $2307560 but not over $5768900    $  58843, plus  5.00% of excess over $2307560     3.60% effective overall tax rate(computed on tax on middle of income range)
Over $5768900 but not over $11537800   $ 231910, plus  6.00% of excess over $5768900     4.68% effective overall tax rate(computed on tax on middle of income range)
Over $11537800 ........................$ 578044, plus  7.00% of excess over $11537800    5.01% <=> 7.00% effective overall tax rate as income goes to infinity
                                                                              1914     1954                                               using exact decimal values of taxes (not integers)
                                                                              ____     ____
taxable income in 2013 dollars $     10000     tax due in  2013 dollars $      100     2000     percentage of taxable income=  1.00%    for tax year 1914  percentage of 1954 taxes   5.00%
taxable income in 2013 dollars $     20000     tax due in  2013 dollars $      200     4057     percentage of taxable income=  1.00%    for tax year 1914  percentage of 1954 taxes   4.93%
taxable income in 2013 dollars $     30000     tax due in  2013 dollars $      300     6257     percentage of taxable income=  1.00%    for tax year 1914  percentage of 1954 taxes   4.79%
taxable income in 2013 dollars $     40000     tax due in  2013 dollars $      400     8684     percentage of taxable income=  1.00%    for tax year 1914  percentage of 1954 taxes   4.61%
taxable income in 2013 dollars $     50000     tax due in  2013 dollars $      500    11284     percentage of taxable income=  1.00%    for tax year 1914  percentage of 1954 taxes   4.43%
taxable income in 2013 dollars $     60000     tax due in  2013 dollars $      600    14226     percentage of taxable income=  1.00%    for tax year 1914  percentage of 1954 taxes   4.22%
taxable income in 2013 dollars $     70000     tax due in  2013 dollars $      700    17280     percentage of taxable income=  1.00%    for tax year 1914  percentage of 1954 taxes   4.05%
taxable income in 2013 dollars $     80000     tax due in  2013 dollars $      800    20680     percentage of taxable income=  1.00%    for tax year 1914  percentage of 1954 taxes   3.87%
taxable income in 2013 dollars $     90000     tax due in  2013 dollars $      900    24249     percentage of taxable income=  1.00%    for tax year 1914  percentage of 1954 taxes   3.71%
taxable income in 2013 dollars $    100000     tax due in  2013 dollars $     1000    28049     percentage of taxable income=  1.00%    for tax year 1914  percentage of 1954 taxes   3.57%
taxable income in 2013 dollars $    150000     tax due in  2013 dollars $     1500    50981     percentage of taxable income=  1.00%    for tax year 1914  percentage of 1954 taxes   2.94%
taxable income in 2013 dollars $    200000     tax due in  2013 dollars $     2000    78540     percentage of taxable income=  1.00%    for tax year 1914  percentage of 1954 taxes   2.55%
taxable income in 2013 dollars $    250000     tax due in  2013 dollars $     2500   108849     percentage of taxable income=  1.00%    for tax year 1914  percentage of 1954 taxes   2.30%
taxable income in 2013 dollars $    300000     tax due in  2013 dollars $     3000   140614     percentage of taxable income=  1.00%    for tax year 1914  percentage of 1954 taxes   2.13%
taxable income in 2013 dollars $    350000     tax due in  2013 dollars $     3500   174075     percentage of taxable income=  1.00%    for tax year 1914  percentage of 1954 taxes   2.01%
taxable income in 2013 dollars $    400000     tax due in  2013 dollars $     4000   209251     percentage of taxable income=  1.00%    for tax year 1914  percentage of 1954 taxes   1.91%
taxable income in 2013 dollars $    450000     tax due in  2013 dollars $     4500   245884     percentage of taxable income=  1.00%    for tax year 1914  percentage of 1954 taxes   1.83%
taxable income in 2013 dollars $    500000     tax due in  2013 dollars $     5385   283384     percentage of taxable income=  1.08%    for tax year 1914  percentage of 1954 taxes   1.90%
taxable income in 2013 dollars $    600000     tax due in  2013 dollars $     7385   360943     percentage of taxable income=  1.23%    for tax year 1914  percentage of 1954 taxes   2.05%
taxable income in 2013 dollars $    700000     tax due in  2013 dollars $     9385   442341     percentage of taxable income=  1.34%    for tax year 1914  percentage of 1954 taxes   2.12%
taxable income in 2013 dollars $    800000     tax due in  2013 dollars $    11385   527179     percentage of taxable income=  1.42%    for tax year 1914  percentage of 1954 taxes   2.16%
taxable income in 2013 dollars $    900000     tax due in  2013 dollars $    13385   615023     percentage of taxable income=  1.49%    for tax year 1914  percentage of 1954 taxes   2.18%
taxable income in 2013 dollars $   1000000     tax due in  2013 dollars $    15385   704023     percentage of taxable income=  1.54%    for tax year 1914  percentage of 1954 taxes   2.19%

1915 tax rate schedule with ORIGINAL dollar figures(for SINGLE taxpayer)
Historical data for the marginal rates was obtained at the Tax Foundation website at [U.S. Federal Individual Income Tax Rates History, 1913-2011 (Nominal and Inflation-Adjusted Brackets)]
Computation of the actual taxes due and the effective overall tax rate at each level were done by Jeff Sagarin.

Not over $  20000 ...................................  1.00% of the taxable income       1.00% effective overall tax rate
Over $  20000 but not over $  50000    $    200, plus  2.00% of excess over $  20000     1.43% effective overall tax rate(computed on tax on middle of income range)
Over $  50000 but not over $  75000    $    800, plus  3.00% of excess over $  50000     1.88% effective overall tax rate(computed on tax on middle of income range)
Over $  75000 but not over $ 100000    $   1550, plus  4.00% of excess over $  75000     2.34% effective overall tax rate(computed on tax on middle of income range)
Over $ 100000 but not over $ 250000    $   2550, plus  5.00% of excess over $ 100000     3.60% effective overall tax rate(computed on tax on middle of income range)
Over $ 250000 but not over $ 500000    $  10050, plus  6.00% of excess over $ 250000     4.68% effective overall tax rate(computed on tax on middle of income range)
Over $ 500000 ........................ $  25050, plus  7.00% of excess over $ 500000     5.01% <=> 7.00% effective overall tax rate as income goes to infinity
1915 tax rate schedule with figures INFLATION-ADJUSTED to 2013 dollars(for SINGLE taxpayer) ... the multiplier is 22.847128712 based on the average of the last 12 monthly figures through and including April 2013 released in mid-May 2013)
Inflation multiplier was determined from Bureau of Labor Statistics at [CPI Inflation Calculator | Historical Consumer Price Index]
Computation of the actual taxes due and the effective overall tax rate at each level were done by Jeff Sagarin.

Not over $ 456943 ...................................  1.00% of the taxable income       1.00% effective overall tax rate
Over $ 456943 but not over $1142356    $   4569, plus  2.00% of excess over $ 456943     1.43% effective overall tax rate(computed on tax on middle of income range)
Over $1142356 but not over $1713535    $  18278, plus  3.00% of excess over $1142356     1.88% effective overall tax rate(computed on tax on middle of income range)
Over $1713535 but not over $2284713    $  35413, plus  4.00% of excess over $1713535     2.34% effective overall tax rate(computed on tax on middle of income range)
Over $2284713 but not over $5711782    $  58260, plus  5.00% of excess over $2284713     3.60% effective overall tax rate(computed on tax on middle of income range)
Over $5711782 but not over $11423564   $ 229614, plus  6.00% of excess over $5711782     4.68% effective overall tax rate(computed on tax on middle of income range)
Over $11423564 ........................$ 572321, plus  7.00% of excess over $11423564    5.01% <=> 7.00% effective overall tax rate as income goes to infinity
                                                                              1915     1954                                               using exact decimal values of taxes (not integers)
                                                                              ____     ____
taxable income in 2013 dollars $     10000     tax due in  2013 dollars $      100     2000     percentage of taxable income=  1.00%    for tax year 1915  percentage of 1954 taxes   5.00%
taxable income in 2013 dollars $     20000     tax due in  2013 dollars $      200     4057     percentage of taxable income=  1.00%    for tax year 1915  percentage of 1954 taxes   4.93%
taxable income in 2013 dollars $     30000     tax due in  2013 dollars $      300     6257     percentage of taxable income=  1.00%    for tax year 1915  percentage of 1954 taxes   4.79%
taxable income in 2013 dollars $     40000     tax due in  2013 dollars $      400     8684     percentage of taxable income=  1.00%    for tax year 1915  percentage of 1954 taxes   4.61%
taxable income in 2013 dollars $     50000     tax due in  2013 dollars $      500    11284     percentage of taxable income=  1.00%    for tax year 1915  percentage of 1954 taxes   4.43%
taxable income in 2013 dollars $     60000     tax due in  2013 dollars $      600    14226     percentage of taxable income=  1.00%    for tax year 1915  percentage of 1954 taxes   4.22%
taxable income in 2013 dollars $     70000     tax due in  2013 dollars $      700    17280     percentage of taxable income=  1.00%    for tax year 1915  percentage of 1954 taxes   4.05%
taxable income in 2013 dollars $     80000     tax due in  2013 dollars $      800    20680     percentage of taxable income=  1.00%    for tax year 1915  percentage of 1954 taxes   3.87%
taxable income in 2013 dollars $     90000     tax due in  2013 dollars $      900    24249     percentage of taxable income=  1.00%    for tax year 1915  percentage of 1954 taxes   3.71%
taxable income in 2013 dollars $    100000     tax due in  2013 dollars $     1000    28049     percentage of taxable income=  1.00%    for tax year 1915  percentage of 1954 taxes   3.57%
taxable income in 2013 dollars $    150000     tax due in  2013 dollars $     1500    50981     percentage of taxable income=  1.00%    for tax year 1915  percentage of 1954 taxes   2.94%
taxable income in 2013 dollars $    200000     tax due in  2013 dollars $     2000    78540     percentage of taxable income=  1.00%    for tax year 1915  percentage of 1954 taxes   2.55%
taxable income in 2013 dollars $    250000     tax due in  2013 dollars $     2500   108849     percentage of taxable income=  1.00%    for tax year 1915  percentage of 1954 taxes   2.30%
taxable income in 2013 dollars $    300000     tax due in  2013 dollars $     3000   140614     percentage of taxable income=  1.00%    for tax year 1915  percentage of 1954 taxes   2.13%
taxable income in 2013 dollars $    350000     tax due in  2013 dollars $     3500   174075     percentage of taxable income=  1.00%    for tax year 1915  percentage of 1954 taxes   2.01%
taxable income in 2013 dollars $    400000     tax due in  2013 dollars $     4000   209251     percentage of taxable income=  1.00%    for tax year 1915  percentage of 1954 taxes   1.91%
taxable income in 2013 dollars $    450000     tax due in  2013 dollars $     4500   245884     percentage of taxable income=  1.00%    for tax year 1915  percentage of 1954 taxes   1.83%
taxable income in 2013 dollars $    500000     tax due in  2013 dollars $     5431   283384     percentage of taxable income=  1.09%    for tax year 1915  percentage of 1954 taxes   1.92%
taxable income in 2013 dollars $    600000     tax due in  2013 dollars $     7431   360943     percentage of taxable income=  1.24%    for tax year 1915  percentage of 1954 taxes   2.06%
taxable income in 2013 dollars $    700000     tax due in  2013 dollars $     9431   442341     percentage of taxable income=  1.35%    for tax year 1915  percentage of 1954 taxes   2.13%
taxable income in 2013 dollars $    800000     tax due in  2013 dollars $    11431   527179     percentage of taxable income=  1.43%    for tax year 1915  percentage of 1954 taxes   2.17%
taxable income in 2013 dollars $    900000     tax due in  2013 dollars $    13431   615023     percentage of taxable income=  1.49%    for tax year 1915  percentage of 1954 taxes   2.18%
taxable income in 2013 dollars $   1000000     tax due in  2013 dollars $    15431   704023     percentage of taxable income=  1.54%    for tax year 1915  percentage of 1954 taxes   2.19%

1916 tax rate schedule with ORIGINAL dollar figures(for SINGLE taxpayer)
Historical data for the marginal rates was obtained at the Tax Foundation website at [U.S. Federal Individual Income Tax Rates History, 1913-2011 (Nominal and Inflation-Adjusted Brackets)]
Computation of the actual taxes due and the effective overall tax rate at each level were done by Jeff Sagarin.

Not over $  20000 ...................................  2.00% of the taxable income       2.00% effective overall tax rate
Over $  20000 but not over $  40000    $    400, plus  3.00% of excess over $  20000     2.33% effective overall tax rate(computed on tax on middle of income range)
Over $  40000 but not over $  60000    $   1000, plus  4.00% of excess over $  40000     2.80% effective overall tax rate(computed on tax on middle of income range)
Over $  60000 but not over $  80000    $   1800, plus  5.00% of excess over $  60000     3.29% effective overall tax rate(computed on tax on middle of income range)
Over $  80000 but not over $ 100000    $   2800, plus  6.00% of excess over $  80000     3.78% effective overall tax rate(computed on tax on middle of income range)
Over $ 100000 but not over $ 150000    $   4000, plus  7.00% of excess over $ 100000     4.60% effective overall tax rate(computed on tax on middle of income range)
Over $ 150000 but not over $ 200000    $   7500, plus  8.00% of excess over $ 150000     5.43% effective overall tax rate(computed on tax on middle of income range)
Over $ 200000 but not over $ 250000    $  11500, plus  9.00% of excess over $ 200000     6.11% effective overall tax rate(computed on tax on middle of income range)
Over $ 250000 but not over $ 300000    $  16000, plus 10.00% of excess over $ 250000     6.73% effective overall tax rate(computed on tax on middle of income range)
Over $ 300000 but not over $ 500000    $  21000, plus 11.00% of excess over $ 300000     8.00% effective overall tax rate(computed on tax on middle of income range)
Over $ 500000 but not over $1000000    $  43000, plus 12.00% of excess over $ 500000     9.73% effective overall tax rate(computed on tax on middle of income range)
Over $1000000 but not over $1500000    $ 103000, plus 13.00% of excess over $1000000    10.84% effective overall tax rate(computed on tax on middle of income range)
Over $1500000 but not over $2000000    $ 168000, plus 14.00% of excess over $1500000    11.60% effective overall tax rate(computed on tax on middle of income range)
Over $2000000 ........................ $ 238000, plus 15.00% of excess over $2000000    11.90% <=> 15.00% effective overall tax rate as income goes to infinity
1916 tax rate schedule with figures INFLATION-ADJUSTED to 2013 dollars(for SINGLE taxpayer) ... the multiplier is 21.170275229 based on the average of the last 12 monthly figures through and including April 2013 released in mid-May 2013)
Inflation multiplier was determined from Bureau of Labor Statistics at [CPI Inflation Calculator | Historical Consumer Price Index]
Computation of the actual taxes due and the effective overall tax rate at each level were done by Jeff Sagarin.

Not over $ 423406 ...................................  2.00% of the taxable income       2.00% effective overall tax rate
Over $ 423406 but not over $ 846811    $   8468, plus  3.00% of excess over $ 423406     2.33% effective overall tax rate(computed on tax on middle of income range)
Over $ 846811 but not over $1270217    $  21170, plus  4.00% of excess over $ 846811     2.80% effective overall tax rate(computed on tax on middle of income range)
Over $1270217 but not over $1693622    $  38106, plus  5.00% of excess over $1270217     3.29% effective overall tax rate(computed on tax on middle of income range)
Over $1693622 but not over $2117028    $  59277, plus  6.00% of excess over $1693622     3.78% effective overall tax rate(computed on tax on middle of income range)
Over $2117028 but not over $3175541    $  84681, plus  7.00% of excess over $2117028     4.60% effective overall tax rate(computed on tax on middle of income range)
Over $3175541 but not over $4234055    $ 158777, plus  8.00% of excess over $3175541     5.43% effective overall tax rate(computed on tax on middle of income range)
Over $4234055 but not over $5292569    $ 243458, plus  9.00% of excess over $4234055     6.11% effective overall tax rate(computed on tax on middle of income range)
Over $5292569 but not over $6351083    $ 338724, plus 10.00% of excess over $5292569     6.73% effective overall tax rate(computed on tax on middle of income range)
Over $6351083 but not over $10585138   $ 444576, plus 11.00% of excess over $6351083     8.00% effective overall tax rate(computed on tax on middle of income range)
Over $10585138 but not over $21170275  $ 910322, plus 12.00% of excess over $10585138    9.73% effective overall tax rate(computed on tax on middle of income range)
Over $21170275 but not over $31755413  $2180538, plus 13.00% of excess over $21170275   10.84% effective overall tax rate(computed on tax on middle of income range)
Over $31755413 but not over $42340550  $3556606, plus 14.00% of excess over $31755413   11.60% effective overall tax rate(computed on tax on middle of income range)
Over $42340550 ........................$5038526, plus 15.00% of excess over $42340550   11.90% <=> 15.00% effective overall tax rate as income goes to infinity
                                                                              1916     1954                                               using exact decimal values of taxes (not integers)
                                                                              ____     ____
taxable income in 2013 dollars $     10000     tax due in  2013 dollars $      200     2000     percentage of taxable income=  2.00%    for tax year 1916  percentage of 1954 taxes  10.00%
taxable income in 2013 dollars $     20000     tax due in  2013 dollars $      400     4057     percentage of taxable income=  2.00%    for tax year 1916  percentage of 1954 taxes   9.86%
taxable income in 2013 dollars $     30000     tax due in  2013 dollars $      600     6257     percentage of taxable income=  2.00%    for tax year 1916  percentage of 1954 taxes   9.59%
taxable income in 2013 dollars $     40000     tax due in  2013 dollars $      800     8684     percentage of taxable income=  2.00%    for tax year 1916  percentage of 1954 taxes   9.21%
taxable income in 2013 dollars $     50000     tax due in  2013 dollars $     1000    11284     percentage of taxable income=  2.00%    for tax year 1916  percentage of 1954 taxes   8.86%
taxable income in 2013 dollars $     60000     tax due in  2013 dollars $     1200    14226     percentage of taxable income=  2.00%    for tax year 1916  percentage of 1954 taxes   8.44%
taxable income in 2013 dollars $     70000     tax due in  2013 dollars $     1400    17280     percentage of taxable income=  2.00%    for tax year 1916  percentage of 1954 taxes   8.10%
taxable income in 2013 dollars $     80000     tax due in  2013 dollars $     1600    20680     percentage of taxable income=  2.00%    for tax year 1916  percentage of 1954 taxes   7.74%
taxable income in 2013 dollars $     90000     tax due in  2013 dollars $     1800    24249     percentage of taxable income=  2.00%    for tax year 1916  percentage of 1954 taxes   7.42%
taxable income in 2013 dollars $    100000     tax due in  2013 dollars $     2000    28049     percentage of taxable income=  2.00%    for tax year 1916  percentage of 1954 taxes   7.13%
taxable income in 2013 dollars $    150000     tax due in  2013 dollars $     3000    50981     percentage of taxable income=  2.00%    for tax year 1916  percentage of 1954 taxes   5.88%
taxable income in 2013 dollars $    200000     tax due in  2013 dollars $     4000    78540     percentage of taxable income=  2.00%    for tax year 1916  percentage of 1954 taxes   5.09%
taxable income in 2013 dollars $    250000     tax due in  2013 dollars $     5000   108849     percentage of taxable income=  2.00%    for tax year 1916  percentage of 1954 taxes   4.59%
taxable income in 2013 dollars $    300000     tax due in  2013 dollars $     6000   140614     percentage of taxable income=  2.00%    for tax year 1916  percentage of 1954 taxes   4.27%
taxable income in 2013 dollars $    350000     tax due in  2013 dollars $     7000   174075     percentage of taxable income=  2.00%    for tax year 1916  percentage of 1954 taxes   4.02%
taxable income in 2013 dollars $    400000     tax due in  2013 dollars $     8000   209251     percentage of taxable income=  2.00%    for tax year 1916  percentage of 1954 taxes   3.82%
taxable income in 2013 dollars $    450000     tax due in  2013 dollars $     9266   245884     percentage of taxable income=  2.06%    for tax year 1916  percentage of 1954 taxes   3.77%
taxable income in 2013 dollars $    500000     tax due in  2013 dollars $    10766   283384     percentage of taxable income=  2.15%    for tax year 1916  percentage of 1954 taxes   3.80%
taxable income in 2013 dollars $    600000     tax due in  2013 dollars $    13766   360943     percentage of taxable income=  2.29%    for tax year 1916  percentage of 1954 taxes   3.81%
taxable income in 2013 dollars $    700000     tax due in  2013 dollars $    16766   442341     percentage of taxable income=  2.40%    for tax year 1916  percentage of 1954 taxes   3.79%
taxable income in 2013 dollars $    800000     tax due in  2013 dollars $    19766   527179     percentage of taxable income=  2.47%    for tax year 1916  percentage of 1954 taxes   3.75%
taxable income in 2013 dollars $    900000     tax due in  2013 dollars $    23298   615023     percentage of taxable income=  2.59%    for tax year 1916  percentage of 1954 taxes   3.79%
taxable income in 2013 dollars $   1000000     tax due in  2013 dollars $    27298   704023     percentage of taxable income=  2.73%    for tax year 1916  percentage of 1954 taxes   3.88%

1917 tax rate schedule with ORIGINAL dollar figures(for SINGLE taxpayer)
Historical data for the marginal rates was obtained at the Tax Foundation website at [U.S. Federal Individual Income Tax Rates History, 1913-2011 (Nominal and Inflation-Adjusted Brackets)]
Computation of the actual taxes due and the effective overall tax rate at each level were done by Jeff Sagarin.

Not over $   2000 ...................................  2.00% of the taxable income       2.00% effective overall tax rate
Over $   2000 but not over $   5000    $     40, plus  4.00% of excess over $   2000     2.86% effective overall tax rate(computed on tax on middle of income range)
Over $   5000 but not over $   7500    $    160, plus  5.00% of excess over $   5000     3.56% effective overall tax rate(computed on tax on middle of income range)
Over $   7500 but not over $  10000    $    285, plus  6.00% of excess over $   7500     4.11% effective overall tax rate(computed on tax on middle of income range)
Over $  10000 but not over $  12500    $    435, plus  7.00% of excess over $  10000     4.64% effective overall tax rate(computed on tax on middle of income range)
Over $  12500 but not over $  15000    $    610, plus  8.00% of excess over $  12500     5.16% effective overall tax rate(computed on tax on middle of income range)
Over $  15000 but not over $  20000    $    810, plus  9.00% of excess over $  15000     5.91% effective overall tax rate(computed on tax on middle of income range)
Over $  20000 but not over $  40000    $   1260, plus 12.00% of excess over $  20000     8.20% effective overall tax rate(computed on tax on middle of income range)
Over $  40000 but not over $  60000    $   3660, plus 16.00% of excess over $  40000    10.52% effective overall tax rate(computed on tax on middle of income range)
Over $  60000 but not over $  80000    $   6860, plus 21.00% of excess over $  60000    12.80% effective overall tax rate(computed on tax on middle of income range)
Over $  80000 but not over $ 100000    $  11060, plus 26.00% of excess over $  80000    15.18% effective overall tax rate(computed on tax on middle of income range)
Over $ 100000 but not over $ 150000    $  16260, plus 31.00% of excess over $ 100000    19.21% effective overall tax rate(computed on tax on middle of income range)
Over $ 150000 but not over $ 200000    $  31760, plus 35.00% of excess over $ 150000    23.15% effective overall tax rate(computed on tax on middle of income range)
Over $ 200000 but not over $ 250000    $  49260, plus 41.00% of excess over $ 200000    26.45% effective overall tax rate(computed on tax on middle of income range)
Over $ 250000 but not over $ 300000    $  69760, plus 46.00% of excess over $ 250000    29.55% effective overall tax rate(computed on tax on middle of income range)
Over $ 300000 but not over $ 500000    $  92760, plus 50.00% of excess over $ 300000    35.69% effective overall tax rate(computed on tax on middle of income range)
Over $ 500000 but not over $ 750000    $ 192760, plus 54.00% of excess over $ 500000    41.64% effective overall tax rate(computed on tax on middle of income range)
Over $ 750000 but not over $1000000    $ 327760, plus 59.00% of excess over $ 750000    45.89% effective overall tax rate(computed on tax on middle of income range)
Over $1000000 but not over $1500000    $ 475260, plus 65.00% of excess over $1000000    51.02% effective overall tax rate(computed on tax on middle of income range)
Over $1500000 but not over $2000000    $ 800260, plus 66.00% of excess over $1500000    55.16% effective overall tax rate(computed on tax on middle of income range)
Over $2000000 ........................ $1130260, plus 67.00% of excess over $2000000    56.51% <=> 67.00% effective overall tax rate as income goes to infinity
1917 tax rate schedule with figures INFLATION-ADJUSTED to 2013 dollars(for SINGLE taxpayer) ... the multiplier is 18.027812500 based on the average of the last 12 monthly figures through and including April 2013 released in mid-May 2013)
Inflation multiplier was determined from Bureau of Labor Statistics at [CPI Inflation Calculator | Historical Consumer Price Index]
Computation of the actual taxes due and the effective overall tax rate at each level were done by Jeff Sagarin.

Not over $  36056 ...................................  2.00% of the taxable income       2.00% effective overall tax rate
Over $  36056 but not over $  90139    $    721, plus  4.00% of excess over $  36056     2.86% effective overall tax rate(computed on tax on middle of income range)
Over $  90139 but not over $ 135209    $   2884, plus  5.00% of excess over $  90139     3.56% effective overall tax rate(computed on tax on middle of income range)
Over $ 135209 but not over $ 180278    $   5138, plus  6.00% of excess over $ 135209     4.11% effective overall tax rate(computed on tax on middle of income range)
Over $ 180278 but not over $ 225348    $   7842, plus  7.00% of excess over $ 180278     4.64% effective overall tax rate(computed on tax on middle of income range)
Over $ 225348 but not over $ 270417    $  10997, plus  8.00% of excess over $ 225348     5.16% effective overall tax rate(computed on tax on middle of income range)
Over $ 270417 but not over $ 360556    $  14603, plus  9.00% of excess over $ 270417     5.91% effective overall tax rate(computed on tax on middle of income range)
Over $ 360556 but not over $ 721113    $  22715, plus 12.00% of excess over $ 360556     8.20% effective overall tax rate(computed on tax on middle of income range)
Over $ 721113 but not over $1081669    $  65982, plus 16.00% of excess over $ 721113    10.52% effective overall tax rate(computed on tax on middle of income range)
Over $1081669 but not over $1442225    $ 123671, plus 21.00% of excess over $1081669    12.80% effective overall tax rate(computed on tax on middle of income range)
Over $1442225 but not over $1802781    $ 199388, plus 26.00% of excess over $1442225    15.18% effective overall tax rate(computed on tax on middle of income range)
Over $1802781 but not over $2704172    $ 293132, plus 31.00% of excess over $1802781    19.21% effective overall tax rate(computed on tax on middle of income range)
Over $2704172 but not over $3605563    $ 572563, plus 35.00% of excess over $2704172    23.15% effective overall tax rate(computed on tax on middle of income range)
Over $3605563 but not over $4506953    $ 888050, plus 41.00% of excess over $3605563    26.45% effective overall tax rate(computed on tax on middle of income range)
Over $4506953 but not over $5408344    $1257620, plus 46.00% of excess over $4506953    29.55% effective overall tax rate(computed on tax on middle of income range)
Over $5408344 but not over $9013906    $1672260, plus 50.00% of excess over $5408344    35.69% effective overall tax rate(computed on tax on middle of income range)
Over $9013906 but not over $13520859   $3475041, plus 54.00% of excess over $9013906    41.64% effective overall tax rate(computed on tax on middle of income range)
Over $13520859 but not over $18027813  $5908796, plus 59.00% of excess over $13520859   45.89% effective overall tax rate(computed on tax on middle of income range)
Over $18027813 but not over $27041719  $8567898, plus 65.00% of excess over $18027813   51.02% effective overall tax rate(computed on tax on middle of income range)
Over $27041719 but not over $36055625  $14426937, plus 66.00% of excess over $27041719  55.16% effective overall tax rate(computed on tax on middle of income range)
Over $36055625 ........................$20376115, plus 67.00% of excess over $36055625  56.51% <=> 67.00% effective overall tax rate as income goes to infinity
                                                                              1917     1954                                               using exact decimal values of taxes (not integers)
                                                                              ____     ____
taxable income in 2013 dollars $     10000     tax due in  2013 dollars $      200     2000     percentage of taxable income=  2.00%    for tax year 1917  percentage of 1954 taxes  10.00%
taxable income in 2013 dollars $     20000     tax due in  2013 dollars $      400     4057     percentage of taxable income=  2.00%    for tax year 1917  percentage of 1954 taxes   9.86%
taxable income in 2013 dollars $     30000     tax due in  2013 dollars $      600     6257     percentage of taxable income=  2.00%    for tax year 1917  percentage of 1954 taxes   9.59%
taxable income in 2013 dollars $     40000     tax due in  2013 dollars $      879     8684     percentage of taxable income=  2.20%    for tax year 1917  percentage of 1954 taxes  10.12%
taxable income in 2013 dollars $     50000     tax due in  2013 dollars $     1279    11284     percentage of taxable income=  2.56%    for tax year 1917  percentage of 1954 taxes  11.33%
taxable income in 2013 dollars $     60000     tax due in  2013 dollars $     1679    14226     percentage of taxable income=  2.80%    for tax year 1917  percentage of 1954 taxes  11.80%
taxable income in 2013 dollars $     70000     tax due in  2013 dollars $     2079    17280     percentage of taxable income=  2.97%    for tax year 1917  percentage of 1954 taxes  12.03%
taxable income in 2013 dollars $     80000     tax due in  2013 dollars $     2479    20680     percentage of taxable income=  3.10%    for tax year 1917  percentage of 1954 taxes  11.99%
taxable income in 2013 dollars $     90000     tax due in  2013 dollars $     2879    24249     percentage of taxable income=  3.20%    for tax year 1917  percentage of 1954 taxes  11.87%
taxable income in 2013 dollars $    100000     tax due in  2013 dollars $     3377    28049     percentage of taxable income=  3.38%    for tax year 1917  percentage of 1954 taxes  12.04%
taxable income in 2013 dollars $    150000     tax due in  2013 dollars $     6025    50981     percentage of taxable income=  4.02%    for tax year 1917  percentage of 1954 taxes  11.82%
taxable income in 2013 dollars $    200000     tax due in  2013 dollars $     9223    78540     percentage of taxable income=  4.61%    for tax year 1917  percentage of 1954 taxes  11.74%
taxable income in 2013 dollars $    250000     tax due in  2013 dollars $    12969   108849     percentage of taxable income=  5.19%    for tax year 1917  percentage of 1954 taxes  11.91%
taxable income in 2013 dollars $    300000     tax due in  2013 dollars $    17265   140614     percentage of taxable income=  5.75%    for tax year 1917  percentage of 1954 taxes  12.28%
taxable income in 2013 dollars $    350000     tax due in  2013 dollars $    21765   174075     percentage of taxable income=  6.22%    for tax year 1917  percentage of 1954 taxes  12.50%
taxable income in 2013 dollars $    400000     tax due in  2013 dollars $    27448   209251     percentage of taxable income=  6.86%    for tax year 1917  percentage of 1954 taxes  13.12%
taxable income in 2013 dollars $    450000     tax due in  2013 dollars $    33448   245884     percentage of taxable income=  7.43%    for tax year 1917  percentage of 1954 taxes  13.60%
taxable income in 2013 dollars $    500000     tax due in  2013 dollars $    39448   283384     percentage of taxable income=  7.89%    for tax year 1917  percentage of 1954 taxes  13.92%
taxable income in 2013 dollars $    600000     tax due in  2013 dollars $    51448   360943     percentage of taxable income=  8.57%    for tax year 1917  percentage of 1954 taxes  14.25%
taxable income in 2013 dollars $    700000     tax due in  2013 dollars $    63448   442341     percentage of taxable income=  9.06%    for tax year 1917  percentage of 1954 taxes  14.34%
taxable income in 2013 dollars $    800000     tax due in  2013 dollars $    78604   527179     percentage of taxable income=  9.83%    for tax year 1917  percentage of 1954 taxes  14.91%
taxable income in 2013 dollars $    900000     tax due in  2013 dollars $    94604   615023     percentage of taxable income= 10.51%    for tax year 1917  percentage of 1954 taxes  15.38%
taxable income in 2013 dollars $   1000000     tax due in  2013 dollars $   110604   704023     percentage of taxable income= 11.06%    for tax year 1917  percentage of 1954 taxes  15.71%

1918 tax rate schedule with ORIGINAL dollar figures(for SINGLE taxpayer)
Historical data for the marginal rates was obtained at the Tax Foundation website at [U.S. Federal Individual Income Tax Rates History, 1913-2011 (Nominal and Inflation-Adjusted Brackets)]
Computation of the actual taxes due and the effective overall tax rate at each level were done by Jeff Sagarin.

Not over $   4000 ...................................  6.00% of the taxable income       6.00% effective overall tax rate
Over $   4000 but not over $   5000    $    240, plus 12.00% of excess over $   4000     6.67% effective overall tax rate(computed on tax on middle of income range)
Over $   5000 but not over $   6000    $    360, plus 13.00% of excess over $   5000     7.73% effective overall tax rate(computed on tax on middle of income range)
Over $   6000 but not over $   8000    $    490, plus 14.00% of excess over $   6000     9.00% effective overall tax rate(computed on tax on middle of income range)
Over $   8000 but not over $  10000    $    770, plus 15.00% of excess over $   8000    10.22% effective overall tax rate(computed on tax on middle of income range)
Over $  10000 but not over $  12000    $   1070, plus 16.00% of excess over $  10000    11.18% effective overall tax rate(computed on tax on middle of income range)
Over $  12000 but not over $  14000    $   1390, plus 17.00% of excess over $  12000    12.00% effective overall tax rate(computed on tax on middle of income range)
Over $  14000 but not over $  16000    $   1730, plus 18.00% of excess over $  14000    12.73% effective overall tax rate(computed on tax on middle of income range)
Over $  16000 but not over $  18000    $   2090, plus 19.00% of excess over $  16000    13.41% effective overall tax rate(computed on tax on middle of income range)
Over $  18000 but not over $  20000    $   2470, plus 20.00% of excess over $  18000    14.05% effective overall tax rate(computed on tax on middle of income range)
Over $  20000 but not over $  22000    $   2870, plus 21.00% of excess over $  20000    14.67% effective overall tax rate(computed on tax on middle of income range)
Over $  22000 but not over $  24000    $   3290, plus 22.00% of excess over $  22000    15.26% effective overall tax rate(computed on tax on middle of income range)
Over $  24000 but not over $  26000    $   3730, plus 23.00% of excess over $  24000    15.84% effective overall tax rate(computed on tax on middle of income range)
Over $  26000 but not over $  28000    $   4190, plus 24.00% of excess over $  26000    16.41% effective overall tax rate(computed on tax on middle of income range)
Over $  28000 but not over $  30000    $   4670, plus 25.00% of excess over $  28000    16.97% effective overall tax rate(computed on tax on middle of income range)
Over $  30000 but not over $  32000    $   5170, plus 26.00% of excess over $  30000    17.52% effective overall tax rate(computed on tax on middle of income range)
Over $  32000 but not over $  34000    $   5690, plus 27.00% of excess over $  32000    18.06% effective overall tax rate(computed on tax on middle of income range)
Over $  34000 but not over $  36000    $   6230, plus 28.00% of excess over $  34000    18.60% effective overall tax rate(computed on tax on middle of income range)
Over $  36000 but not over $  38000    $   6790, plus 29.00% of excess over $  36000    19.14% effective overall tax rate(computed on tax on middle of income range)
Over $  38000 but not over $  40000    $   7370, plus 30.00% of excess over $  38000    19.67% effective overall tax rate(computed on tax on middle of income range)
Over $  40000 but not over $  42000    $   7970, plus 31.00% of excess over $  40000    20.20% effective overall tax rate(computed on tax on middle of income range)
Over $  42000 but not over $  44000    $   8590, plus 32.00% of excess over $  42000    20.72% effective overall tax rate(computed on tax on middle of income range)
Over $  44000 but not over $  46000    $   9230, plus 33.00% of excess over $  44000    21.24% effective overall tax rate(computed on tax on middle of income range)
Over $  46000 but not over $  48000    $   9890, plus 34.00% of excess over $  46000    21.77% effective overall tax rate(computed on tax on middle of income range)
Over $  48000 but not over $  50000    $  10570, plus 35.00% of excess over $  48000    22.29% effective overall tax rate(computed on tax on middle of income range)
Over $  50000 but not over $  52000    $  11270, plus 36.00% of excess over $  50000    22.80% effective overall tax rate(computed on tax on middle of income range)
Over $  52000 but not over $  54000    $  11990, plus 37.00% of excess over $  52000    23.32% effective overall tax rate(computed on tax on middle of income range)
Over $  54000 but not over $  56000    $  12730, plus 38.00% of excess over $  54000    23.84% effective overall tax rate(computed on tax on middle of income range)
Over $  56000 but not over $  58000    $  13490, plus 39.00% of excess over $  56000    24.35% effective overall tax rate(computed on tax on middle of income range)
Over $  58000 but not over $  60000    $  14270, plus 40.00% of excess over $  58000    24.86% effective overall tax rate(computed on tax on middle of income range)
Over $  60000 but not over $  62000    $  15070, plus 41.00% of excess over $  60000    25.38% effective overall tax rate(computed on tax on middle of income range)
Over $  62000 but not over $  64000    $  15890, plus 42.00% of excess over $  62000    25.89% effective overall tax rate(computed on tax on middle of income range)
Over $  64000 but not over $  66000    $  16730, plus 43.00% of excess over $  64000    26.40% effective overall tax rate(computed on tax on middle of income range)
Over $  66000 but not over $  68000    $  17590, plus 44.00% of excess over $  66000    26.91% effective overall tax rate(computed on tax on middle of income range)
Over $  68000 but not over $  70000    $  18470, plus 45.00% of excess over $  68000    27.42% effective overall tax rate(computed on tax on middle of income range)
Over $  70000 but not over $  72000    $  19370, plus 46.00% of excess over $  70000    27.93% effective overall tax rate(computed on tax on middle of income range)
Over $  72000 but not over $  74000    $  20290, plus 47.00% of excess over $  72000    28.44% effective overall tax rate(computed on tax on middle of income range)
Over $  74000 but not over $  76000    $  21230, plus 48.00% of excess over $  74000    28.95% effective overall tax rate(computed on tax on middle of income range)
Over $  76000 but not over $  78000    $  22190, plus 49.00% of excess over $  76000    29.45% effective overall tax rate(computed on tax on middle of income range)
Over $  78000 but not over $  80000    $  23170, plus 50.00% of excess over $  78000    29.96% effective overall tax rate(computed on tax on middle of income range)
Over $  80000 but not over $  82000    $  24170, plus 51.00% of excess over $  80000    30.47% effective overall tax rate(computed on tax on middle of income range)
Over $  82000 but not over $  84000    $  25190, plus 52.00% of excess over $  82000    30.98% effective overall tax rate(computed on tax on middle of income range)
Over $  84000 but not over $  86000    $  26230, plus 53.00% of excess over $  84000    31.48% effective overall tax rate(computed on tax on middle of income range)
Over $  86000 but not over $  88000    $  27290, plus 54.00% of excess over $  86000    31.99% effective overall tax rate(computed on tax on middle of income range)
Over $  88000 but not over $  90000    $  28370, plus 55.00% of excess over $  88000    32.49% effective overall tax rate(computed on tax on middle of income range)
Over $  90000 but not over $  92000    $  29470, plus 56.00% of excess over $  90000    33.00% effective overall tax rate(computed on tax on middle of income range)
Over $  92000 but not over $  94000    $  30590, plus 57.00% of excess over $  92000    33.51% effective overall tax rate(computed on tax on middle of income range)
Over $  94000 but not over $  96000    $  31730, plus 58.00% of excess over $  94000    34.01% effective overall tax rate(computed on tax on middle of income range)
Over $  96000 but not over $  98000    $  32890, plus 59.00% of excess over $  96000    34.52% effective overall tax rate(computed on tax on middle of income range)
Over $  98000 but not over $ 100000    $  34070, plus 60.00% of excess over $  98000    35.02% effective overall tax rate(computed on tax on middle of income range)
Over $ 100000 but not over $ 150000    $  35270, plus 64.00% of excess over $ 100000    41.02% effective overall tax rate(computed on tax on middle of income range)
Over $ 150000 but not over $ 200000    $  67270, plus 68.00% of excess over $ 150000    48.15% effective overall tax rate(computed on tax on middle of income range)
Over $ 200000 but not over $ 300000    $ 101270, plus 72.00% of excess over $ 200000    54.91% effective overall tax rate(computed on tax on middle of income range)
Over $ 300000 but not over $ 500000    $ 173270, plus 75.00% of excess over $ 300000    62.07% effective overall tax rate(computed on tax on middle of income range)
Over $ 500000 but not over $1000000    $ 323270, plus 76.00% of excess over $ 500000    68.44% effective overall tax rate(computed on tax on middle of income range)
Over $1000000 ........................ $ 703270, plus 77.00% of excess over $1000000    70.33% <=> 77.00% effective overall tax rate as income goes to infinity
1918 tax rate schedule with figures INFLATION-ADJUSTED to 2013 dollars(for SINGLE taxpayer) ... the multiplier is 15.281854305 based on the average of the last 12 monthly figures through and including April 2013 released in mid-May 2013)
Inflation multiplier was determined from Bureau of Labor Statistics at [CPI Inflation Calculator | Historical Consumer Price Index]
Computation of the actual taxes due and the effective overall tax rate at each level were done by Jeff Sagarin.

Not over $  61127 ...................................  6.00% of the taxable income       6.00% effective overall tax rate
Over $  61127 but not over $  76409    $   3668, plus 12.00% of excess over $  61127     6.67% effective overall tax rate(computed on tax on middle of income range)
Over $  76409 but not over $  91691    $   5501, plus 13.00% of excess over $  76409     7.73% effective overall tax rate(computed on tax on middle of income range)
Over $  91691 but not over $ 122255    $   7488, plus 14.00% of excess over $  91691     9.00% effective overall tax rate(computed on tax on middle of income range)
Over $ 122255 but not over $ 152819    $  11767, plus 15.00% of excess over $ 122255    10.22% effective overall tax rate(computed on tax on middle of income range)
Over $ 152819 but not over $ 183382    $  16352, plus 16.00% of excess over $ 152819    11.18% effective overall tax rate(computed on tax on middle of income range)
Over $ 183382 but not over $ 213946    $  21242, plus 17.00% of excess over $ 183382    12.00% effective overall tax rate(computed on tax on middle of income range)
Over $ 213946 but not over $ 244510    $  26438, plus 18.00% of excess over $ 213946    12.73% effective overall tax rate(computed on tax on middle of income range)
Over $ 244510 but not over $ 275073    $  31939, plus 19.00% of excess over $ 244510    13.41% effective overall tax rate(computed on tax on middle of income range)
Over $ 275073 but not over $ 305637    $  37746, plus 20.00% of excess over $ 275073    14.05% effective overall tax rate(computed on tax on middle of income range)
Over $ 305637 but not over $ 336201    $  43859, plus 21.00% of excess over $ 305637    14.67% effective overall tax rate(computed on tax on middle of income range)
Over $ 336201 but not over $ 366765    $  50277, plus 22.00% of excess over $ 336201    15.26% effective overall tax rate(computed on tax on middle of income range)
Over $ 366765 but not over $ 397328    $  57001, plus 23.00% of excess over $ 366765    15.84% effective overall tax rate(computed on tax on middle of income range)
Over $ 397328 but not over $ 427892    $  64031, plus 24.00% of excess over $ 397328    16.41% effective overall tax rate(computed on tax on middle of income range)
Over $ 427892 but not over $ 458456    $  71366, plus 25.00% of excess over $ 427892    16.97% effective overall tax rate(computed on tax on middle of income range)
Over $ 458456 but not over $ 489019    $  79007, plus 26.00% of excess over $ 458456    17.52% effective overall tax rate(computed on tax on middle of income range)
Over $ 489019 but not over $ 519583    $  86954, plus 27.00% of excess over $ 489019    18.06% effective overall tax rate(computed on tax on middle of income range)
Over $ 519583 but not over $ 550147    $  95206, plus 28.00% of excess over $ 519583    18.60% effective overall tax rate(computed on tax on middle of income range)
Over $ 550147 but not over $ 580710    $ 103764, plus 29.00% of excess over $ 550147    19.14% effective overall tax rate(computed on tax on middle of income range)
Over $ 580710 but not over $ 611274    $ 112627, plus 30.00% of excess over $ 580710    19.67% effective overall tax rate(computed on tax on middle of income range)
Over $ 611274 but not over $ 641838    $ 121796, plus 31.00% of excess over $ 611274    20.20% effective overall tax rate(computed on tax on middle of income range)
Over $ 641838 but not over $ 672402    $ 131271, plus 32.00% of excess over $ 641838    20.72% effective overall tax rate(computed on tax on middle of income range)
Over $ 672402 but not over $ 702965    $ 141052, plus 33.00% of excess over $ 672402    21.24% effective overall tax rate(computed on tax on middle of income range)
Over $ 702965 but not over $ 733529    $ 151138, plus 34.00% of excess over $ 702965    21.77% effective overall tax rate(computed on tax on middle of income range)
Over $ 733529 but not over $ 764093    $ 161529, plus 35.00% of excess over $ 733529    22.29% effective overall tax rate(computed on tax on middle of income range)
Over $ 764093 but not over $ 794656    $ 172226, plus 36.00% of excess over $ 764093    22.80% effective overall tax rate(computed on tax on middle of income range)
Over $ 794656 but not over $ 825220    $ 183229, plus 37.00% of excess over $ 794656    23.32% effective overall tax rate(computed on tax on middle of income range)
Over $ 825220 but not over $ 855784    $ 194538, plus 38.00% of excess over $ 825220    23.84% effective overall tax rate(computed on tax on middle of income range)
Over $ 855784 but not over $ 886348    $ 206152, plus 39.00% of excess over $ 855784    24.35% effective overall tax rate(computed on tax on middle of income range)
Over $ 886348 but not over $ 916911    $ 218072, plus 40.00% of excess over $ 886348    24.86% effective overall tax rate(computed on tax on middle of income range)
Over $ 916911 but not over $ 947475    $ 230298, plus 41.00% of excess over $ 916911    25.38% effective overall tax rate(computed on tax on middle of income range)
Over $ 947475 but not over $ 978039    $ 242829, plus 42.00% of excess over $ 947475    25.89% effective overall tax rate(computed on tax on middle of income range)
Over $ 978039 but not over $1008602    $ 255665, plus 43.00% of excess over $ 978039    26.40% effective overall tax rate(computed on tax on middle of income range)
Over $1008602 but not over $1039166    $ 268808, plus 44.00% of excess over $1008602    26.91% effective overall tax rate(computed on tax on middle of income range)
Over $1039166 but not over $1069730    $ 282256, plus 45.00% of excess over $1039166    27.42% effective overall tax rate(computed on tax on middle of income range)
Over $1069730 but not over $1100294    $ 296010, plus 46.00% of excess over $1069730    27.93% effective overall tax rate(computed on tax on middle of income range)
Over $1100294 but not over $1130857    $ 310069, plus 47.00% of excess over $1100294    28.44% effective overall tax rate(computed on tax on middle of income range)
Over $1130857 but not over $1161421    $ 324434, plus 48.00% of excess over $1130857    28.95% effective overall tax rate(computed on tax on middle of income range)
Over $1161421 but not over $1191985    $ 339104, plus 49.00% of excess over $1161421    29.45% effective overall tax rate(computed on tax on middle of income range)
Over $1191985 but not over $1222548    $ 354081, plus 50.00% of excess over $1191985    29.96% effective overall tax rate(computed on tax on middle of income range)
Over $1222548 but not over $1253112    $ 369362, plus 51.00% of excess over $1222548    30.47% effective overall tax rate(computed on tax on middle of income range)
Over $1253112 but not over $1283676    $ 384950, plus 52.00% of excess over $1253112    30.98% effective overall tax rate(computed on tax on middle of income range)
Over $1283676 but not over $1314239    $ 400843, plus 53.00% of excess over $1283676    31.48% effective overall tax rate(computed on tax on middle of income range)
Over $1314239 but not over $1344803    $ 417042, plus 54.00% of excess over $1314239    31.99% effective overall tax rate(computed on tax on middle of income range)
Over $1344803 but not over $1375367    $ 433546, plus 55.00% of excess over $1344803    32.49% effective overall tax rate(computed on tax on middle of income range)
Over $1375367 but not over $1405931    $ 450356, plus 56.00% of excess over $1375367    33.00% effective overall tax rate(computed on tax on middle of income range)
Over $1405931 but not over $1436494    $ 467472, plus 57.00% of excess over $1405931    33.51% effective overall tax rate(computed on tax on middle of income range)
Over $1436494 but not over $1467058    $ 484893, plus 58.00% of excess over $1436494    34.01% effective overall tax rate(computed on tax on middle of income range)
Over $1467058 but not over $1497622    $ 502620, plus 59.00% of excess over $1467058    34.52% effective overall tax rate(computed on tax on middle of income range)
Over $1497622 but not over $1528185    $ 520653, plus 60.00% of excess over $1497622    35.02% effective overall tax rate(computed on tax on middle of income range)
Over $1528185 but not over $2292278    $ 538991, plus 64.00% of excess over $1528185    41.02% effective overall tax rate(computed on tax on middle of income range)
Over $2292278 but not over $3056371    $1028010, plus 68.00% of excess over $2292278    48.15% effective overall tax rate(computed on tax on middle of income range)
Over $3056371 but not over $4584556    $1547593, plus 72.00% of excess over $3056371    54.91% effective overall tax rate(computed on tax on middle of income range)
Over $4584556 but not over $7640927    $2647887, plus 75.00% of excess over $4584556    62.07% effective overall tax rate(computed on tax on middle of income range)
Over $7640927 but not over $15281854   $4940165, plus 76.00% of excess over $7640927    68.44% effective overall tax rate(computed on tax on middle of income range)
Over $15281854 ........................$10747270, plus 77.00% of excess over $15281854  70.33% <=> 77.00% effective overall tax rate as income goes to infinity
                                                                              1918     1954                                               using exact decimal values of taxes (not integers)
                                                                              ____     ____
taxable income in 2013 dollars $     10000     tax due in  2013 dollars $      600     2000     percentage of taxable income=  6.00%    for tax year 1918  percentage of 1954 taxes  30.00%
taxable income in 2013 dollars $     20000     tax due in  2013 dollars $     1200     4057     percentage of taxable income=  6.00%    for tax year 1918  percentage of 1954 taxes  29.58%
taxable income in 2013 dollars $     30000     tax due in  2013 dollars $     1800     6257     percentage of taxable income=  6.00%    for tax year 1918  percentage of 1954 taxes  28.77%
taxable income in 2013 dollars $     40000     tax due in  2013 dollars $     2400     8684     percentage of taxable income=  6.00%    for tax year 1918  percentage of 1954 taxes  27.64%
taxable income in 2013 dollars $     50000     tax due in  2013 dollars $     3000    11284     percentage of taxable income=  6.00%    for tax year 1918  percentage of 1954 taxes  26.59%
taxable income in 2013 dollars $     60000     tax due in  2013 dollars $     3600    14226     percentage of taxable income=  6.00%    for tax year 1918  percentage of 1954 taxes  25.31%
taxable income in 2013 dollars $     70000     tax due in  2013 dollars $     4732    17280     percentage of taxable income=  6.76%    for tax year 1918  percentage of 1954 taxes  27.39%
taxable income in 2013 dollars $     80000     tax due in  2013 dollars $     5968    20680     percentage of taxable income=  7.46%    for tax year 1918  percentage of 1954 taxes  28.86%
taxable income in 2013 dollars $     90000     tax due in  2013 dollars $     7268    24249     percentage of taxable income=  8.08%    for tax year 1918  percentage of 1954 taxes  29.97%
taxable income in 2013 dollars $    100000     tax due in  2013 dollars $     8651    28049     percentage of taxable income=  8.65%    for tax year 1918  percentage of 1954 taxes  30.84%
taxable income in 2013 dollars $    150000     tax due in  2013 dollars $    15929    50981     percentage of taxable income= 10.62%    for tax year 1918  percentage of 1954 taxes  31.24%
taxable income in 2013 dollars $    200000     tax due in  2013 dollars $    24067    78540     percentage of taxable income= 12.03%    for tax year 1918  percentage of 1954 taxes  30.64%
taxable income in 2013 dollars $    250000     tax due in  2013 dollars $    32982   108849     percentage of taxable income= 13.19%    for tax year 1918  percentage of 1954 taxes  30.30%
taxable income in 2013 dollars $    300000     tax due in  2013 dollars $    42732   140614     percentage of taxable income= 14.24%    for tax year 1918  percentage of 1954 taxes  30.39%
taxable income in 2013 dollars $    350000     tax due in  2013 dollars $    53313   174075     percentage of taxable income= 15.23%    for tax year 1918  percentage of 1954 taxes  30.63%
taxable income in 2013 dollars $    400000     tax due in  2013 dollars $    64672   209251     percentage of taxable income= 16.17%    for tax year 1918  percentage of 1954 taxes  30.91%
taxable income in 2013 dollars $    450000     tax due in  2013 dollars $    76893   245884     percentage of taxable income= 17.09%    for tax year 1918  percentage of 1954 taxes  31.27%
taxable income in 2013 dollars $    500000     tax due in  2013 dollars $    89919   283384     percentage of taxable income= 17.98%    for tax year 1918  percentage of 1954 taxes  31.73%
taxable income in 2013 dollars $    600000     tax due in  2013 dollars $   118414   360943     percentage of taxable income= 19.74%    for tax year 1918  percentage of 1954 taxes  32.81%
taxable income in 2013 dollars $    700000     tax due in  2013 dollars $   150159   442341     percentage of taxable income= 21.45%    for tax year 1918  percentage of 1954 taxes  33.95%
taxable income in 2013 dollars $    800000     tax due in  2013 dollars $   185207   527179     percentage of taxable income= 23.15%    for tax year 1918  percentage of 1954 taxes  35.13%
taxable income in 2013 dollars $    900000     tax due in  2013 dollars $   223533   615023     percentage of taxable income= 24.84%    for tax year 1918  percentage of 1954 taxes  36.35%
taxable income in 2013 dollars $   1000000     tax due in  2013 dollars $   265109   704023     percentage of taxable income= 26.51%    for tax year 1918  percentage of 1954 taxes  37.66%

1919 tax rate schedule with ORIGINAL dollar figures(for SINGLE taxpayer)
Historical data for the marginal rates was obtained at the Tax Foundation website at [U.S. Federal Individual Income Tax Rates History, 1913-2011 (Nominal and Inflation-Adjusted Brackets)]
Computation of the actual taxes due and the effective overall tax rate at each level were done by Jeff Sagarin.

Not over $   4000 ...................................  4.00% of the taxable income       4.00% effective overall tax rate
Over $   4000 but not over $   5000    $    160, plus  8.00% of excess over $   4000     4.44% effective overall tax rate(computed on tax on middle of income range)
Over $   5000 but not over $   6000    $    240, plus  9.00% of excess over $   5000     5.18% effective overall tax rate(computed on tax on middle of income range)
Over $   6000 but not over $   8000    $    330, plus 10.00% of excess over $   6000     6.14% effective overall tax rate(computed on tax on middle of income range)
Over $   8000 but not over $  10000    $    530, plus 11.00% of excess over $   8000     7.11% effective overall tax rate(computed on tax on middle of income range)
Over $  10000 but not over $  12000    $    750, plus 12.00% of excess over $  10000     7.91% effective overall tax rate(computed on tax on middle of income range)
Over $  12000 but not over $  14000    $    990, plus 13.00% of excess over $  12000     8.62% effective overall tax rate(computed on tax on middle of income range)
Over $  14000 but not over $  16000    $   1250, plus 14.00% of excess over $  14000     9.27% effective overall tax rate(computed on tax on middle of income range)
Over $  16000 but not over $  18000    $   1530, plus 15.00% of excess over $  16000     9.88% effective overall tax rate(computed on tax on middle of income range)
Over $  18000 but not over $  20000    $   1830, plus 16.00% of excess over $  18000    10.47% effective overall tax rate(computed on tax on middle of income range)
Over $  20000 but not over $  22000    $   2150, plus 17.00% of excess over $  20000    11.05% effective overall tax rate(computed on tax on middle of income range)
Over $  22000 but not over $  24000    $   2490, plus 18.00% of excess over $  22000    11.61% effective overall tax rate(computed on tax on middle of income range)
Over $  24000 but not over $  26000    $   2850, plus 19.00% of excess over $  24000    12.16% effective overall tax rate(computed on tax on middle of income range)
Over $  26000 but not over $  28000    $   3230, plus 20.00% of excess over $  26000    12.70% effective overall tax rate(computed on tax on middle of income range)
Over $  28000 but not over $  30000    $   3630, plus 21.00% of excess over $  28000    13.24% effective overall tax rate(computed on tax on middle of income range)
Over $  30000 but not over $  32000    $   4050, plus 22.00% of excess over $  30000    13.77% effective overall tax rate(computed on tax on middle of income range)
Over $  32000 but not over $  34000    $   4490, plus 23.00% of excess over $  32000    14.30% effective overall tax rate(computed on tax on middle of income range)
Over $  34000 but not over $  36000    $   4950, plus 24.00% of excess over $  34000    14.83% effective overall tax rate(computed on tax on middle of income range)
Over $  36000 but not over $  38000    $   5430, plus 25.00% of excess over $  36000    15.35% effective overall tax rate(computed on tax on middle of income range)
Over $  38000 but not over $  40000    $   5930, plus 26.00% of excess over $  38000    15.87% effective overall tax rate(computed on tax on middle of income range)
Over $  40000 but not over $  42000    $   6450, plus 27.00% of excess over $  40000    16.39% effective overall tax rate(computed on tax on middle of income range)
Over $  42000 but not over $  44000    $   6990, plus 28.00% of excess over $  42000    16.91% effective overall tax rate(computed on tax on middle of income range)
Over $  44000 but not over $  46000    $   7550, plus 29.00% of excess over $  44000    17.42% effective overall tax rate(computed on tax on middle of income range)
Over $  46000 but not over $  48000    $   8130, plus 30.00% of excess over $  46000    17.94% effective overall tax rate(computed on tax on middle of income range)
Over $  48000 but not over $  50000    $   8730, plus 31.00% of excess over $  48000    18.45% effective overall tax rate(computed on tax on middle of income range)
Over $  50000 but not over $  52000    $   9350, plus 32.00% of excess over $  50000    18.96% effective overall tax rate(computed on tax on middle of income range)
Over $  52000 but not over $  54000    $   9990, plus 33.00% of excess over $  52000    19.47% effective overall tax rate(computed on tax on middle of income range)
Over $  54000 but not over $  56000    $  10650, plus 34.00% of excess over $  54000    19.98% effective overall tax rate(computed on tax on middle of income range)
Over $  56000 but not over $  58000    $  11330, plus 35.00% of excess over $  56000    20.49% effective overall tax rate(computed on tax on middle of income range)
Over $  58000 but not over $  60000    $  12030, plus 36.00% of excess over $  58000    21.00% effective overall tax rate(computed on tax on middle of income range)
Over $  60000 but not over $  62000    $  12750, plus 37.00% of excess over $  60000    21.51% effective overall tax rate(computed on tax on middle of income range)
Over $  62000 but not over $  64000    $  13490, plus 38.00% of excess over $  62000    22.02% effective overall tax rate(computed on tax on middle of income range)
Over $  64000 but not over $  66000    $  14250, plus 39.00% of excess over $  64000    22.52% effective overall tax rate(computed on tax on middle of income range)
Over $  66000 but not over $  68000    $  15030, plus 40.00% of excess over $  66000    23.03% effective overall tax rate(computed on tax on middle of income range)
Over $  68000 but not over $  70000    $  15830, plus 41.00% of excess over $  68000    23.54% effective overall tax rate(computed on tax on middle of income range)
Over $  70000 but not over $  72000    $  16650, plus 42.00% of excess over $  70000    24.04% effective overall tax rate(computed on tax on middle of income range)
Over $  72000 but not over $  74000    $  17490, plus 43.00% of excess over $  72000    24.55% effective overall tax rate(computed on tax on middle of income range)
Over $  74000 but not over $  76000    $  18350, plus 44.00% of excess over $  74000    25.05% effective overall tax rate(computed on tax on middle of income range)
Over $  76000 but not over $  78000    $  19230, plus 45.00% of excess over $  76000    25.56% effective overall tax rate(computed on tax on middle of income range)
Over $  78000 but not over $  80000    $  20130, plus 46.00% of excess over $  78000    26.06% effective overall tax rate(computed on tax on middle of income range)
Over $  80000 but not over $  82000    $  21050, plus 47.00% of excess over $  80000    26.57% effective overall tax rate(computed on tax on middle of income range)
Over $  82000 but not over $  84000    $  21990, plus 48.00% of excess over $  82000    27.07% effective overall tax rate(computed on tax on middle of income range)
Over $  84000 but not over $  86000    $  22950, plus 49.00% of excess over $  84000    27.58% effective overall tax rate(computed on tax on middle of income range)
Over $  86000 but not over $  88000    $  23930, plus 50.00% of excess over $  86000    28.08% effective overall tax rate(computed on tax on middle of income range)
Over $  88000 but not over $  90000    $  24930, plus 51.00% of excess over $  88000    28.58% effective overall tax rate(computed on tax on middle of income range)
Over $  90000 but not over $  92000    $  25950, plus 52.00% of excess over $  90000    29.09% effective overall tax rate(computed on tax on middle of income range)
Over $  92000 but not over $  94000    $  26990, plus 53.00% of excess over $  92000    29.59% effective overall tax rate(computed on tax on middle of income range)
Over $  94000 but not over $  96000    $  28050, plus 54.00% of excess over $  94000    30.09% effective overall tax rate(computed on tax on middle of income range)
Over $  96000 but not over $  98000    $  29130, plus 55.00% of excess over $  96000    30.60% effective overall tax rate(computed on tax on middle of income range)
Over $  98000 but not over $ 100000    $  30230, plus 56.00% of excess over $  98000    31.10% effective overall tax rate(computed on tax on middle of income range)
Over $ 100000 but not over $ 150000    $  31350, plus 60.00% of excess over $ 100000    37.08% effective overall tax rate(computed on tax on middle of income range)
Over $ 150000 but not over $ 200000    $  61350, plus 64.00% of excess over $ 150000    44.20% effective overall tax rate(computed on tax on middle of income range)
Over $ 200000 but not over $ 300000    $  93350, plus 68.00% of excess over $ 200000    50.94% effective overall tax rate(computed on tax on middle of income range)
Over $ 300000 but not over $ 500000    $ 161350, plus 71.00% of excess over $ 300000    58.09% effective overall tax rate(computed on tax on middle of income range)
Over $ 500000 but not over $1000000    $ 303350, plus 72.00% of excess over $ 500000    64.45% effective overall tax rate(computed on tax on middle of income range)
Over $1000000 ........................ $ 663350, plus 73.00% of excess over $1000000    66.34% <=> 73.00% effective overall tax rate as income goes to infinity
1919 tax rate schedule with figures INFLATION-ADJUSTED to 2013 dollars(for SINGLE taxpayer) ... the multiplier is 13.338497109 based on the average of the last 12 monthly figures through and including April 2013 released in mid-May 2013)
Inflation multiplier was determined from Bureau of Labor Statistics at [CPI Inflation Calculator | Historical Consumer Price Index]
Computation of the actual taxes due and the effective overall tax rate at each level were done by Jeff Sagarin.

Not over $  53354 ...................................  4.00% of the taxable income       4.00% effective overall tax rate
Over $  53354 but not over $  66692    $   2134, plus  8.00% of excess over $  53354     4.44% effective overall tax rate(computed on tax on middle of income range)
Over $  66692 but not over $  80031    $   3201, plus  9.00% of excess over $  66692     5.18% effective overall tax rate(computed on tax on middle of income range)
Over $  80031 but not over $ 106708    $   4402, plus 10.00% of excess over $  80031     6.14% effective overall tax rate(computed on tax on middle of income range)
Over $ 106708 but not over $ 133385    $   7069, plus 11.00% of excess over $ 106708     7.11% effective overall tax rate(computed on tax on middle of income range)
Over $ 133385 but not over $ 160062    $  10004, plus 12.00% of excess over $ 133385     7.91% effective overall tax rate(computed on tax on middle of income range)
Over $ 160062 but not over $ 186739    $  13205, plus 13.00% of excess over $ 160062     8.62% effective overall tax rate(computed on tax on middle of income range)
Over $ 186739 but not over $ 213416    $  16673, plus 14.00% of excess over $ 186739     9.27% effective overall tax rate(computed on tax on middle of income range)
Over $ 213416 but not over $ 240093    $  20408, plus 15.00% of excess over $ 213416     9.88% effective overall tax rate(computed on tax on middle of income range)
Over $ 240093 but not over $ 266770    $  24409, plus 16.00% of excess over $ 240093    10.47% effective overall tax rate(computed on tax on middle of income range)
Over $ 266770 but not over $ 293447    $  28678, plus 17.00% of excess over $ 266770    11.05% effective overall tax rate(computed on tax on middle of income range)
Over $ 293447 but not over $ 320124    $  33213, plus 18.00% of excess over $ 293447    11.61% effective overall tax rate(computed on tax on middle of income range)
Over $ 320124 but not over $ 346801    $  38015, plus 19.00% of excess over $ 320124    12.16% effective overall tax rate(computed on tax on middle of income range)
Over $ 346801 but not over $ 373478    $  43083, plus 20.00% of excess over $ 346801    12.70% effective overall tax rate(computed on tax on middle of income range)
Over $ 373478 but not over $ 400155    $  48419, plus 21.00% of excess over $ 373478    13.24% effective overall tax rate(computed on tax on middle of income range)
Over $ 400155 but not over $ 426832    $  54021, plus 22.00% of excess over $ 400155    13.77% effective overall tax rate(computed on tax on middle of income range)
Over $ 426832 but not over $ 453509    $  59890, plus 23.00% of excess over $ 426832    14.30% effective overall tax rate(computed on tax on middle of income range)
Over $ 453509 but not over $ 480186    $  66026, plus 24.00% of excess over $ 453509    14.83% effective overall tax rate(computed on tax on middle of income range)
Over $ 480186 but not over $ 506863    $  72428, plus 25.00% of excess over $ 480186    15.35% effective overall tax rate(computed on tax on middle of income range)
Over $ 506863 but not over $ 533540    $  79097, plus 26.00% of excess over $ 506863    15.87% effective overall tax rate(computed on tax on middle of income range)
Over $ 533540 but not over $ 560217    $  86033, plus 27.00% of excess over $ 533540    16.39% effective overall tax rate(computed on tax on middle of income range)
Over $ 560217 but not over $ 586894    $  93236, plus 28.00% of excess over $ 560217    16.91% effective overall tax rate(computed on tax on middle of income range)
Over $ 586894 but not over $ 613571    $ 100706, plus 29.00% of excess over $ 586894    17.42% effective overall tax rate(computed on tax on middle of income range)
Over $ 613571 but not over $ 640248    $ 108442, plus 30.00% of excess over $ 613571    17.94% effective overall tax rate(computed on tax on middle of income range)
Over $ 640248 but not over $ 666925    $ 116445, plus 31.00% of excess over $ 640248    18.45% effective overall tax rate(computed on tax on middle of income range)
Over $ 666925 but not over $ 693602    $ 124715, plus 32.00% of excess over $ 666925    18.96% effective overall tax rate(computed on tax on middle of income range)
Over $ 693602 but not over $ 720279    $ 133252, plus 33.00% of excess over $ 693602    19.47% effective overall tax rate(computed on tax on middle of income range)
Over $ 720279 but not over $ 746956    $ 142055, plus 34.00% of excess over $ 720279    19.98% effective overall tax rate(computed on tax on middle of income range)
Over $ 746956 but not over $ 773633    $ 151125, plus 35.00% of excess over $ 746956    20.49% effective overall tax rate(computed on tax on middle of income range)
Over $ 773633 but not over $ 800310    $ 160462, plus 36.00% of excess over $ 773633    21.00% effective overall tax rate(computed on tax on middle of income range)
Over $ 800310 but not over $ 826987    $ 170066, plus 37.00% of excess over $ 800310    21.51% effective overall tax rate(computed on tax on middle of income range)
Over $ 826987 but not over $ 853664    $ 179936, plus 38.00% of excess over $ 826987    22.02% effective overall tax rate(computed on tax on middle of income range)
Over $ 853664 but not over $ 880341    $ 190074, plus 39.00% of excess over $ 853664    22.52% effective overall tax rate(computed on tax on middle of income range)
Over $ 880341 but not over $ 907018    $ 200478, plus 40.00% of excess over $ 880341    23.03% effective overall tax rate(computed on tax on middle of income range)
Over $ 907018 but not over $ 933695    $ 211148, plus 41.00% of excess over $ 907018    23.54% effective overall tax rate(computed on tax on middle of income range)
Over $ 933695 but not over $ 960372    $ 222086, plus 42.00% of excess over $ 933695    24.04% effective overall tax rate(computed on tax on middle of income range)
Over $ 960372 but not over $ 987049    $ 233290, plus 43.00% of excess over $ 960372    24.55% effective overall tax rate(computed on tax on middle of income range)
Over $ 987049 but not over $1013726    $ 244761, plus 44.00% of excess over $ 987049    25.05% effective overall tax rate(computed on tax on middle of income range)
Over $1013726 but not over $1040403    $ 256499, plus 45.00% of excess over $1013726    25.56% effective overall tax rate(computed on tax on middle of income range)
Over $1040403 but not over $1067080    $ 268504, plus 46.00% of excess over $1040403    26.06% effective overall tax rate(computed on tax on middle of income range)
Over $1067080 but not over $1093757    $ 280775, plus 47.00% of excess over $1067080    26.57% effective overall tax rate(computed on tax on middle of income range)
Over $1093757 but not over $1120434    $ 293314, plus 48.00% of excess over $1093757    27.07% effective overall tax rate(computed on tax on middle of income range)
Over $1120434 but not over $1147111    $ 306119, plus 49.00% of excess over $1120434    27.58% effective overall tax rate(computed on tax on middle of income range)
Over $1147111 but not over $1173788    $ 319190, plus 50.00% of excess over $1147111    28.08% effective overall tax rate(computed on tax on middle of income range)
Over $1173788 but not over $1200465    $ 332529, plus 51.00% of excess over $1173788    28.58% effective overall tax rate(computed on tax on middle of income range)
Over $1200465 but not over $1227142    $ 346134, plus 52.00% of excess over $1200465    29.09% effective overall tax rate(computed on tax on middle of income range)
Over $1227142 but not over $1253819    $ 360006, plus 53.00% of excess over $1227142    29.59% effective overall tax rate(computed on tax on middle of income range)
Over $1253819 but not over $1280496    $ 374145, plus 54.00% of excess over $1253819    30.09% effective overall tax rate(computed on tax on middle of income range)
Over $1280496 but not over $1307173    $ 388550, plus 55.00% of excess over $1280496    30.60% effective overall tax rate(computed on tax on middle of income range)
Over $1307173 but not over $1333850    $ 403223, plus 56.00% of excess over $1307173    31.10% effective overall tax rate(computed on tax on middle of income range)
Over $1333850 but not over $2000775    $ 418162, plus 60.00% of excess over $1333850    37.08% effective overall tax rate(computed on tax on middle of income range)
Over $2000775 but not over $2667699    $ 818317, plus 64.00% of excess over $2000775    44.20% effective overall tax rate(computed on tax on middle of income range)
Over $2667699 but not over $4001549    $1245149, plus 68.00% of excess over $2667699    50.94% effective overall tax rate(computed on tax on middle of income range)
Over $4001549 but not over $6669249    $2152167, plus 71.00% of excess over $4001549    58.09% effective overall tax rate(computed on tax on middle of income range)
Over $6669249 but not over $13338497   $4046233, plus 72.00% of excess over $6669249    64.45% effective overall tax rate(computed on tax on middle of income range)
Over $13338497 ........................$8848092, plus 73.00% of excess over $13338497   66.33% <=> 73.00% effective overall tax rate as income goes to infinity
                                                                              1919     1954                                               using exact decimal values of taxes (not integers)
                                                                              ____     ____
taxable income in 2013 dollars $     10000     tax due in  2013 dollars $      400     2000     percentage of taxable income=  4.00%    for tax year 1919  percentage of 1954 taxes  20.00%
taxable income in 2013 dollars $     20000     tax due in  2013 dollars $      800     4057     percentage of taxable income=  4.00%    for tax year 1919  percentage of 1954 taxes  19.72%
taxable income in 2013 dollars $     30000     tax due in  2013 dollars $     1200     6257     percentage of taxable income=  4.00%    for tax year 1919  percentage of 1954 taxes  19.18%
taxable income in 2013 dollars $     40000     tax due in  2013 dollars $     1600     8684     percentage of taxable income=  4.00%    for tax year 1919  percentage of 1954 taxes  18.42%
taxable income in 2013 dollars $     50000     tax due in  2013 dollars $     2000    11284     percentage of taxable income=  4.00%    for tax year 1919  percentage of 1954 taxes  17.72%
taxable income in 2013 dollars $     60000     tax due in  2013 dollars $     2666    14226     percentage of taxable income=  4.44%    for tax year 1919  percentage of 1954 taxes  18.74%
taxable income in 2013 dollars $     70000     tax due in  2013 dollars $     3499    17280     percentage of taxable income=  5.00%    for tax year 1919  percentage of 1954 taxes  20.25%
taxable income in 2013 dollars $     80000     tax due in  2013 dollars $     4399    20680     percentage of taxable income=  5.50%    for tax year 1919  percentage of 1954 taxes  21.27%
taxable income in 2013 dollars $     90000     tax due in  2013 dollars $     5399    24249     percentage of taxable income=  6.00%    for tax year 1919  percentage of 1954 taxes  22.26%
taxable income in 2013 dollars $    100000     tax due in  2013 dollars $     6399    28049     percentage of taxable income=  6.40%    for tax year 1919  percentage of 1954 taxes  22.81%
taxable income in 2013 dollars $    150000     tax due in  2013 dollars $    11998    50981     percentage of taxable income=  8.00%    for tax year 1919  percentage of 1954 taxes  23.53%
taxable income in 2013 dollars $    200000     tax due in  2013 dollars $    18530    78540     percentage of taxable income=  9.26%    for tax year 1919  percentage of 1954 taxes  23.59%
taxable income in 2013 dollars $    250000     tax due in  2013 dollars $    25995   108849     percentage of taxable income= 10.40%    for tax year 1919  percentage of 1954 taxes  23.88%
taxable income in 2013 dollars $    300000     tax due in  2013 dollars $    34392   140614     percentage of taxable income= 11.46%    for tax year 1919  percentage of 1954 taxes  24.46%
taxable income in 2013 dollars $    350000     tax due in  2013 dollars $    43723   174075     percentage of taxable income= 12.49%    for tax year 1919  percentage of 1954 taxes  25.12%
taxable income in 2013 dollars $    400000     tax due in  2013 dollars $    53988   209251     percentage of taxable income= 13.50%    for tax year 1919  percentage of 1954 taxes  25.80%
taxable income in 2013 dollars $    450000     tax due in  2013 dollars $    65219   245884     percentage of taxable income= 14.49%    for tax year 1919  percentage of 1954 taxes  26.52%
taxable income in 2013 dollars $    500000     tax due in  2013 dollars $    77382   283384     percentage of taxable income= 15.48%    for tax year 1919  percentage of 1954 taxes  27.31%
taxable income in 2013 dollars $    600000     tax due in  2013 dollars $   104506   360943     percentage of taxable income= 17.42%    for tax year 1919  percentage of 1954 taxes  28.95%
taxable income in 2013 dollars $    700000     tax due in  2013 dollars $   135363   442341     percentage of taxable income= 19.34%    for tax year 1919  percentage of 1954 taxes  30.60%
taxable income in 2013 dollars $    800000     tax due in  2013 dollars $   169954   527179     percentage of taxable income= 21.24%    for tax year 1919  percentage of 1954 taxes  32.24%
taxable income in 2013 dollars $    900000     tax due in  2013 dollars $   208341   615023     percentage of taxable income= 23.15%    for tax year 1919  percentage of 1954 taxes  33.88%
taxable income in 2013 dollars $   1000000     tax due in  2013 dollars $   250460   704023     percentage of taxable income= 25.05%    for tax year 1919  percentage of 1954 taxes  35.58%

1920 tax rate schedule with ORIGINAL dollar figures(for SINGLE taxpayer)
Historical data for the marginal rates was obtained at the Tax Foundation website at [U.S. Federal Individual Income Tax Rates History, 1913-2011 (Nominal and Inflation-Adjusted Brackets)]
Computation of the actual taxes due and the effective overall tax rate at each level were done by Jeff Sagarin.

Not over $   4000 ...................................  4.00% of the taxable income       4.00% effective overall tax rate
Over $   4000 but not over $   5000    $    160, plus  8.00% of excess over $   4000     4.44% effective overall tax rate(computed on tax on middle of income range)
Over $   5000 but not over $   6000    $    240, plus  9.00% of excess over $   5000     5.18% effective overall tax rate(computed on tax on middle of income range)
Over $   6000 but not over $   8000    $    330, plus 10.00% of excess over $   6000     6.14% effective overall tax rate(computed on tax on middle of income range)
Over $   8000 but not over $  10000    $    530, plus 11.00% of excess over $   8000     7.11% effective overall tax rate(computed on tax on middle of income range)
Over $  10000 but not over $  12000    $    750, plus 12.00% of excess over $  10000     7.91% effective overall tax rate(computed on tax on middle of income range)
Over $  12000 but not over $  14000    $    990, plus 13.00% of excess over $  12000     8.62% effective overall tax rate(computed on tax on middle of income range)
Over $  14000 but not over $  16000    $   1250, plus 14.00% of excess over $  14000     9.27% effective overall tax rate(computed on tax on middle of income range)
Over $  16000 but not over $  18000    $   1530, plus 15.00% of excess over $  16000     9.88% effective overall tax rate(computed on tax on middle of income range)
Over $  18000 but not over $  20000    $   1830, plus 16.00% of excess over $  18000    10.47% effective overall tax rate(computed on tax on middle of income range)
Over $  20000 but not over $  22000    $   2150, plus 17.00% of excess over $  20000    11.05% effective overall tax rate(computed on tax on middle of income range)
Over $  22000 but not over $  24000    $   2490, plus 18.00% of excess over $  22000    11.61% effective overall tax rate(computed on tax on middle of income range)
Over $  24000 but not over $  26000    $   2850, plus 19.00% of excess over $  24000    12.16% effective overall tax rate(computed on tax on middle of income range)
Over $  26000 but not over $  28000    $   3230, plus 20.00% of excess over $  26000    12.70% effective overall tax rate(computed on tax on middle of income range)
Over $  28000 but not over $  30000    $   3630, plus 21.00% of excess over $  28000    13.24% effective overall tax rate(computed on tax on middle of income range)
Over $  30000 but not over $  32000    $   4050, plus 22.00% of excess over $  30000    13.77% effective overall tax rate(computed on tax on middle of income range)
Over $  32000 but not over $  34000    $   4490, plus 23.00% of excess over $  32000    14.30% effective overall tax rate(computed on tax on middle of income range)
Over $  34000 but not over $  36000    $   4950, plus 24.00% of excess over $  34000    14.83% effective overall tax rate(computed on tax on middle of income range)
Over $  36000 but not over $  38000    $   5430, plus 25.00% of excess over $  36000    15.35% effective overall tax rate(computed on tax on middle of income range)
Over $  38000 but not over $  40000    $   5930, plus 26.00% of excess over $  38000    15.87% effective overall tax rate(computed on tax on middle of income range)
Over $  40000 but not over $  42000    $   6450, plus 27.00% of excess over $  40000    16.39% effective overall tax rate(computed on tax on middle of income range)
Over $  42000 but not over $  44000    $   6990, plus 28.00% of excess over $  42000    16.91% effective overall tax rate(computed on tax on middle of income range)
Over $  44000 but not over $  46000    $   7550, plus 29.00% of excess over $  44000    17.42% effective overall tax rate(computed on tax on middle of income range)
Over $  46000 but not over $  48000    $   8130, plus 30.00% of excess over $  46000    17.94% effective overall tax rate(computed on tax on middle of income range)
Over $  48000 but not over $  50000    $   8730, plus 31.00% of excess over $  48000    18.45% effective overall tax rate(computed on tax on middle of income range)
Over $  50000 but not over $  52000    $   9350, plus 32.00% of excess over $  50000    18.96% effective overall tax rate(computed on tax on middle of income range)
Over $  52000 but not over $  54000    $   9990, plus 33.00% of excess over $  52000    19.47% effective overall tax rate(computed on tax on middle of income range)
Over $  54000 but not over $  56000    $  10650, plus 34.00% of excess over $  54000    19.98% effective overall tax rate(computed on tax on middle of income range)
Over $  56000 but not over $  58000    $  11330, plus 35.00% of excess over $  56000    20.49% effective overall tax rate(computed on tax on middle of income range)
Over $  58000 but not over $  60000    $  12030, plus 36.00% of excess over $  58000    21.00% effective overall tax rate(computed on tax on middle of income range)
Over $  60000 but not over $  62000    $  12750, plus 37.00% of excess over $  60000    21.51% effective overall tax rate(computed on tax on middle of income range)
Over $  62000 but not over $  64000    $  13490, plus 38.00% of excess over $  62000    22.02% effective overall tax rate(computed on tax on middle of income range)
Over $  64000 but not over $  66000    $  14250, plus 39.00% of excess over $  64000    22.52% effective overall tax rate(computed on tax on middle of income range)
Over $  66000 but not over $  68000    $  15030, plus 40.00% of excess over $  66000    23.03% effective overall tax rate(computed on tax on middle of income range)
Over $  68000 but not over $  70000    $  15830, plus 41.00% of excess over $  68000    23.54% effective overall tax rate(computed on tax on middle of income range)
Over $  70000 but not over $  72000    $  16650, plus 42.00% of excess over $  70000    24.04% effective overall tax rate(computed on tax on middle of income range)
Over $  72000 but not over $  74000    $  17490, plus 43.00% of excess over $  72000    24.55% effective overall tax rate(computed on tax on middle of income range)
Over $  74000 but not over $  76000    $  18350, plus 44.00% of excess over $  74000    25.05% effective overall tax rate(computed on tax on middle of income range)
Over $  76000 but not over $  78000    $  19230, plus 45.00% of excess over $  76000    25.56% effective overall tax rate(computed on tax on middle of income range)
Over $  78000 but not over $  80000    $  20130, plus 46.00% of excess over $  78000    26.06% effective overall tax rate(computed on tax on middle of income range)
Over $  80000 but not over $  82000    $  21050, plus 47.00% of excess over $  80000    26.57% effective overall tax rate(computed on tax on middle of income range)
Over $  82000 but not over $  84000    $  21990, plus 48.00% of excess over $  82000    27.07% effective overall tax rate(computed on tax on middle of income range)
Over $  84000 but not over $  86000    $  22950, plus 49.00% of excess over $  84000    27.58% effective overall tax rate(computed on tax on middle of income range)
Over $  86000 but not over $  88000    $  23930, plus 50.00% of excess over $  86000    28.08% effective overall tax rate(computed on tax on middle of income range)
Over $  88000 but not over $  90000    $  24930, plus 51.00% of excess over $  88000    28.58% effective overall tax rate(computed on tax on middle of income range)
Over $  90000 but not over $  92000    $  25950, plus 52.00% of excess over $  90000    29.09% effective overall tax rate(computed on tax on middle of income range)
Over $  92000 but not over $  94000    $  26990, plus 53.00% of excess over $  92000    29.59% effective overall tax rate(computed on tax on middle of income range)
Over $  94000 but not over $  96000    $  28050, plus 54.00% of excess over $  94000    30.09% effective overall tax rate(computed on tax on middle of income range)
Over $  96000 but not over $  98000    $  29130, plus 55.00% of excess over $  96000    30.60% effective overall tax rate(computed on tax on middle of income range)
Over $  98000 but not over $ 100000    $  30230, plus 56.00% of excess over $  98000    31.10% effective overall tax rate(computed on tax on middle of income range)
Over $ 100000 but not over $ 150000    $  31350, plus 60.00% of excess over $ 100000    37.08% effective overall tax rate(computed on tax on middle of income range)
Over $ 150000 but not over $ 200000    $  61350, plus 64.00% of excess over $ 150000    44.20% effective overall tax rate(computed on tax on middle of income range)
Over $ 200000 but not over $ 300000    $  93350, plus 68.00% of excess over $ 200000    50.94% effective overall tax rate(computed on tax on middle of income range)
Over $ 300000 but not over $ 500000    $ 161350, plus 71.00% of excess over $ 300000    58.09% effective overall tax rate(computed on tax on middle of income range)
Over $ 500000 but not over $1000000    $ 303350, plus 72.00% of excess over $ 500000    64.45% effective overall tax rate(computed on tax on middle of income range)
Over $1000000 ........................ $ 663350, plus 73.00% of excess over $1000000    66.34% <=> 73.00% effective overall tax rate as income goes to infinity
1920 tax rate schedule with figures INFLATION-ADJUSTED to 2013 dollars(for SINGLE taxpayer) ... the multiplier is 11.537800000 based on the average of the last 12 monthly figures through and including April 2013 released in mid-May 2013)
Inflation multiplier was determined from Bureau of Labor Statistics at [CPI Inflation Calculator | Historical Consumer Price Index]
Computation of the actual taxes due and the effective overall tax rate at each level were done by Jeff Sagarin.

Not over $  46151 ...................................  4.00% of the taxable income       4.00% effective overall tax rate
Over $  46151 but not over $  57689    $   1846, plus  8.00% of excess over $  46151     4.44% effective overall tax rate(computed on tax on middle of income range)
Over $  57689 but not over $  69227    $   2769, plus  9.00% of excess over $  57689     5.18% effective overall tax rate(computed on tax on middle of income range)
Over $  69227 but not over $  92302    $   3807, plus 10.00% of excess over $  69227     6.14% effective overall tax rate(computed on tax on middle of income range)
Over $  92302 but not over $ 115378    $   6115, plus 11.00% of excess over $  92302     7.11% effective overall tax rate(computed on tax on middle of income range)
Over $ 115378 but not over $ 138454    $   8653, plus 12.00% of excess over $ 115378     7.91% effective overall tax rate(computed on tax on middle of income range)
Over $ 138454 but not over $ 161529    $  11422, plus 13.00% of excess over $ 138454     8.62% effective overall tax rate(computed on tax on middle of income range)
Over $ 161529 but not over $ 184605    $  14422, plus 14.00% of excess over $ 161529     9.27% effective overall tax rate(computed on tax on middle of income range)
Over $ 184605 but not over $ 207680    $  17653, plus 15.00% of excess over $ 184605     9.88% effective overall tax rate(computed on tax on middle of income range)
Over $ 207680 but not over $ 230756    $  21114, plus 16.00% of excess over $ 207680    10.47% effective overall tax rate(computed on tax on middle of income range)
Over $ 230756 but not over $ 253832    $  24806, plus 17.00% of excess over $ 230756    11.05% effective overall tax rate(computed on tax on middle of income range)
Over $ 253832 but not over $ 276907    $  28729, plus 18.00% of excess over $ 253832    11.61% effective overall tax rate(computed on tax on middle of income range)
Over $ 276907 but not over $ 299983    $  32883, plus 19.00% of excess over $ 276907    12.16% effective overall tax rate(computed on tax on middle of income range)
Over $ 299983 but not over $ 323058    $  37267, plus 20.00% of excess over $ 299983    12.70% effective overall tax rate(computed on tax on middle of income range)
Over $ 323058 but not over $ 346134    $  41882, plus 21.00% of excess over $ 323058    13.24% effective overall tax rate(computed on tax on middle of income range)
Over $ 346134 but not over $ 369210    $  46728, plus 22.00% of excess over $ 346134    13.77% effective overall tax rate(computed on tax on middle of income range)
Over $ 369210 but not over $ 392285    $  51805, plus 23.00% of excess over $ 369210    14.30% effective overall tax rate(computed on tax on middle of income range)
Over $ 392285 but not over $ 415361    $  57112, plus 24.00% of excess over $ 392285    14.83% effective overall tax rate(computed on tax on middle of income range)
Over $ 415361 but not over $ 438436    $  62650, plus 25.00% of excess over $ 415361    15.35% effective overall tax rate(computed on tax on middle of income range)
Over $ 438436 but not over $ 461512    $  68419, plus 26.00% of excess over $ 438436    15.87% effective overall tax rate(computed on tax on middle of income range)
Over $ 461512 but not over $ 484588    $  74419, plus 27.00% of excess over $ 461512    16.39% effective overall tax rate(computed on tax on middle of income range)
Over $ 484588 but not over $ 507663    $  80649, plus 28.00% of excess over $ 484588    16.91% effective overall tax rate(computed on tax on middle of income range)
Over $ 507663 but not over $ 530739    $  87110, plus 29.00% of excess over $ 507663    17.42% effective overall tax rate(computed on tax on middle of income range)
Over $ 530739 but not over $ 553814    $  93802, plus 30.00% of excess over $ 530739    17.94% effective overall tax rate(computed on tax on middle of income range)
Over $ 553814 but not over $ 576890    $ 100725, plus 31.00% of excess over $ 553814    18.45% effective overall tax rate(computed on tax on middle of income range)
Over $ 576890 but not over $ 599966    $ 107878, plus 32.00% of excess over $ 576890    18.96% effective overall tax rate(computed on tax on middle of income range)
Over $ 599966 but not over $ 623041    $ 115263, plus 33.00% of excess over $ 599966    19.47% effective overall tax rate(computed on tax on middle of income range)
Over $ 623041 but not over $ 646117    $ 122878, plus 34.00% of excess over $ 623041    19.98% effective overall tax rate(computed on tax on middle of income range)
Over $ 646117 but not over $ 669192    $ 130723, plus 35.00% of excess over $ 646117    20.49% effective overall tax rate(computed on tax on middle of income range)
Over $ 669192 but not over $ 692268    $ 138800, plus 36.00% of excess over $ 669192    21.00% effective overall tax rate(computed on tax on middle of income range)
Over $ 692268 but not over $ 715344    $ 147107, plus 37.00% of excess over $ 692268    21.51% effective overall tax rate(computed on tax on middle of income range)
Over $ 715344 but not over $ 738419    $ 155645, plus 38.00% of excess over $ 715344    22.02% effective overall tax rate(computed on tax on middle of income range)
Over $ 738419 but not over $ 761495    $ 164414, plus 39.00% of excess over $ 738419    22.52% effective overall tax rate(computed on tax on middle of income range)
Over $ 761495 but not over $ 784570    $ 173413, plus 40.00% of excess over $ 761495    23.03% effective overall tax rate(computed on tax on middle of income range)
Over $ 784570 but not over $ 807646    $ 182643, plus 41.00% of excess over $ 784570    23.54% effective overall tax rate(computed on tax on middle of income range)
Over $ 807646 but not over $ 830722    $ 192104, plus 42.00% of excess over $ 807646    24.04% effective overall tax rate(computed on tax on middle of income range)
Over $ 830722 but not over $ 853797    $ 201796, plus 43.00% of excess over $ 830722    24.55% effective overall tax rate(computed on tax on middle of income range)
Over $ 853797 but not over $ 876873    $ 211719, plus 44.00% of excess over $ 853797    25.05% effective overall tax rate(computed on tax on middle of income range)
Over $ 876873 but not over $ 899948    $ 221872, plus 45.00% of excess over $ 876873    25.56% effective overall tax rate(computed on tax on middle of income range)
Over $ 899948 but not over $ 923024    $ 232256, plus 46.00% of excess over $ 899948    26.06% effective overall tax rate(computed on tax on middle of income range)
Over $ 923024 but not over $ 946100    $ 242871, plus 47.00% of excess over $ 923024    26.57% effective overall tax rate(computed on tax on middle of income range)
Over $ 946100 but not over $ 969175    $ 253716, plus 48.00% of excess over $ 946100    27.07% effective overall tax rate(computed on tax on middle of income range)
Over $ 969175 but not over $ 992251    $ 264793, plus 49.00% of excess over $ 969175    27.58% effective overall tax rate(computed on tax on middle of income range)
Over $ 992251 but not over $1015326    $ 276100, plus 50.00% of excess over $ 992251    28.08% effective overall tax rate(computed on tax on middle of income range)
Over $1015326 but not over $1038402    $ 287637, plus 51.00% of excess over $1015326    28.58% effective overall tax rate(computed on tax on middle of income range)
Over $1038402 but not over $1061478    $ 299406, plus 52.00% of excess over $1038402    29.09% effective overall tax rate(computed on tax on middle of income range)
Over $1061478 but not over $1084553    $ 311405, plus 53.00% of excess over $1061478    29.59% effective overall tax rate(computed on tax on middle of income range)
Over $1084553 but not over $1107629    $ 323635, plus 54.00% of excess over $1084553    30.09% effective overall tax rate(computed on tax on middle of income range)
Over $1107629 but not over $1130704    $ 336096, plus 55.00% of excess over $1107629    30.60% effective overall tax rate(computed on tax on middle of income range)
Over $1130704 but not over $1153780    $ 348788, plus 56.00% of excess over $1130704    31.10% effective overall tax rate(computed on tax on middle of income range)
Over $1153780 but not over $1730670    $ 361710, plus 60.00% of excess over $1153780    37.08% effective overall tax rate(computed on tax on middle of income range)
Over $1730670 but not over $2307560    $ 707844, plus 64.00% of excess over $1730670    44.20% effective overall tax rate(computed on tax on middle of income range)
Over $2307560 but not over $3461340    $1077054, plus 68.00% of excess over $2307560    50.94% effective overall tax rate(computed on tax on middle of income range)
Over $3461340 but not over $5768900    $1861624, plus 71.00% of excess over $3461340    58.09% effective overall tax rate(computed on tax on middle of income range)
Over $5768900 but not over $11537800   $3499992, plus 72.00% of excess over $5768900    64.45% effective overall tax rate(computed on tax on middle of income range)
Over $11537800 ........................$7653600, plus 73.00% of excess over $11537800   66.33% <=> 73.00% effective overall tax rate as income goes to infinity
                                                                              1920     1954                                               using exact decimal values of taxes (not integers)
                                                                              ____     ____
taxable income in 2013 dollars $     10000     tax due in  2013 dollars $      400     2000     percentage of taxable income=  4.00%    for tax year 1920  percentage of 1954 taxes  20.00%
taxable income in 2013 dollars $     20000     tax due in  2013 dollars $      800     4057     percentage of taxable income=  4.00%    for tax year 1920  percentage of 1954 taxes  19.72%
taxable income in 2013 dollars $     30000     tax due in  2013 dollars $     1200     6257     percentage of taxable income=  4.00%    for tax year 1920  percentage of 1954 taxes  19.18%
taxable income in 2013 dollars $     40000     tax due in  2013 dollars $     1600     8684     percentage of taxable income=  4.00%    for tax year 1920  percentage of 1954 taxes  18.42%
taxable income in 2013 dollars $     50000     tax due in  2013 dollars $     2154    11284     percentage of taxable income=  4.31%    for tax year 1920  percentage of 1954 taxes  19.09%
taxable income in 2013 dollars $     60000     tax due in  2013 dollars $     2977    14226     percentage of taxable income=  4.96%    for tax year 1920  percentage of 1954 taxes  20.93%
taxable income in 2013 dollars $     70000     tax due in  2013 dollars $     3885    17280     percentage of taxable income=  5.55%    for tax year 1920  percentage of 1954 taxes  22.48%
taxable income in 2013 dollars $     80000     tax due in  2013 dollars $     4885    20680     percentage of taxable income=  6.11%    for tax year 1920  percentage of 1954 taxes  23.62%
taxable income in 2013 dollars $     90000     tax due in  2013 dollars $     5885    24249     percentage of taxable income=  6.54%    for tax year 1920  percentage of 1954 taxes  24.27%
taxable income in 2013 dollars $    100000     tax due in  2013 dollars $     6962    28049     percentage of taxable income=  6.96%    for tax year 1920  percentage of 1954 taxes  24.82%
taxable income in 2013 dollars $    150000     tax due in  2013 dollars $    12923    50981     percentage of taxable income=  8.62%    for tax year 1920  percentage of 1954 taxes  25.35%
taxable income in 2013 dollars $    200000     tax due in  2013 dollars $    19962    78540     percentage of taxable income=  9.98%    for tax year 1920  percentage of 1954 taxes  25.42%
taxable income in 2013 dollars $    250000     tax due in  2013 dollars $    28078   108849     percentage of taxable income= 11.23%    for tax year 1920  percentage of 1954 taxes  25.80%
taxable income in 2013 dollars $    300000     tax due in  2013 dollars $    37271   140614     percentage of taxable income= 12.42%    for tax year 1920  percentage of 1954 taxes  26.51%
taxable income in 2013 dollars $    350000     tax due in  2013 dollars $    47579   174075     percentage of taxable income= 13.59%    for tax year 1920  percentage of 1954 taxes  27.33%
taxable income in 2013 dollars $    400000     tax due in  2013 dollars $    58964   209251     percentage of taxable income= 14.74%    for tax year 1920  percentage of 1954 taxes  28.18%
taxable income in 2013 dollars $    450000     tax due in  2013 dollars $    71426   245884     percentage of taxable income= 15.87%    for tax year 1920  percentage of 1954 taxes  29.05%
taxable income in 2013 dollars $    500000     tax due in  2013 dollars $    84965   283384     percentage of taxable income= 16.99%    for tax year 1920  percentage of 1954 taxes  29.98%
taxable income in 2013 dollars $    600000     tax due in  2013 dollars $   115274   360943     percentage of taxable income= 19.21%    for tax year 1920  percentage of 1954 taxes  31.94%
taxable income in 2013 dollars $    700000     tax due in  2013 dollars $   149968   442341     percentage of taxable income= 21.42%    for tax year 1920  percentage of 1954 taxes  33.90%
taxable income in 2013 dollars $    800000     tax due in  2013 dollars $   188970   527179     percentage of taxable income= 23.62%    for tax year 1920  percentage of 1954 taxes  35.85%
taxable income in 2013 dollars $    900000     tax due in  2013 dollars $   232280   615023     percentage of taxable income= 25.81%    for tax year 1920  percentage of 1954 taxes  37.77%
taxable income in 2013 dollars $   1000000     tax due in  2013 dollars $   279974   704023     percentage of taxable income= 28.00%    for tax year 1920  percentage of 1954 taxes  39.77%

1921 tax rate schedule with ORIGINAL dollar figures(for SINGLE taxpayer)
Historical data for the marginal rates was obtained at the Tax Foundation website at [U.S. Federal Individual Income Tax Rates History, 1913-2011 (Nominal and Inflation-Adjusted Brackets)]
Computation of the actual taxes due and the effective overall tax rate at each level were done by Jeff Sagarin.

Not over $   4000 ...................................  4.00% of the taxable income       4.00% effective overall tax rate
Over $   4000 but not over $   5000    $    160, plus  8.00% of excess over $   4000     4.44% effective overall tax rate(computed on tax on middle of income range)
Over $   5000 but not over $   6000    $    240, plus  9.00% of excess over $   5000     5.18% effective overall tax rate(computed on tax on middle of income range)
Over $   6000 but not over $   8000    $    330, plus 10.00% of excess over $   6000     6.14% effective overall tax rate(computed on tax on middle of income range)
Over $   8000 but not over $  10000    $    530, plus 11.00% of excess over $   8000     7.11% effective overall tax rate(computed on tax on middle of income range)
Over $  10000 but not over $  12000    $    750, plus 12.00% of excess over $  10000     7.91% effective overall tax rate(computed on tax on middle of income range)
Over $  12000 but not over $  14000    $    990, plus 13.00% of excess over $  12000     8.62% effective overall tax rate(computed on tax on middle of income range)
Over $  14000 but not over $  16000    $   1250, plus 14.00% of excess over $  14000     9.27% effective overall tax rate(computed on tax on middle of income range)
Over $  16000 but not over $  18000    $   1530, plus 15.00% of excess over $  16000     9.88% effective overall tax rate(computed on tax on middle of income range)
Over $  18000 but not over $  20000    $   1830, plus 16.00% of excess over $  18000    10.47% effective overall tax rate(computed on tax on middle of income range)
Over $  20000 but not over $  22000    $   2150, plus 17.00% of excess over $  20000    11.05% effective overall tax rate(computed on tax on middle of income range)
Over $  22000 but not over $  24000    $   2490, plus 18.00% of excess over $  22000    11.61% effective overall tax rate(computed on tax on middle of income range)
Over $  24000 but not over $  26000    $   2850, plus 19.00% of excess over $  24000    12.16% effective overall tax rate(computed on tax on middle of income range)
Over $  26000 but not over $  28000    $   3230, plus 20.00% of excess over $  26000    12.70% effective overall tax rate(computed on tax on middle of income range)
Over $  28000 but not over $  30000    $   3630, plus 21.00% of excess over $  28000    13.24% effective overall tax rate(computed on tax on middle of income range)
Over $  30000 but not over $  32000    $   4050, plus 22.00% of excess over $  30000    13.77% effective overall tax rate(computed on tax on middle of income range)
Over $  32000 but not over $  34000    $   4490, plus 23.00% of excess over $  32000    14.30% effective overall tax rate(computed on tax on middle of income range)
Over $  34000 but not over $  36000    $   4950, plus 24.00% of excess over $  34000    14.83% effective overall tax rate(computed on tax on middle of income range)
Over $  36000 but not over $  38000    $   5430, plus 25.00% of excess over $  36000    15.35% effective overall tax rate(computed on tax on middle of income range)
Over $  38000 but not over $  40000    $   5930, plus 26.00% of excess over $  38000    15.87% effective overall tax rate(computed on tax on middle of income range)
Over $  40000 but not over $  42000    $   6450, plus 27.00% of excess over $  40000    16.39% effective overall tax rate(computed on tax on middle of income range)
Over $  42000 but not over $  44000    $   6990, plus 28.00% of excess over $  42000    16.91% effective overall tax rate(computed on tax on middle of income range)
Over $  44000 but not over $  46000    $   7550, plus 29.00% of excess over $  44000    17.42% effective overall tax rate(computed on tax on middle of income range)
Over $  46000 but not over $  48000    $   8130, plus 30.00% of excess over $  46000    17.94% effective overall tax rate(computed on tax on middle of income range)
Over $  48000 but not over $  50000    $   8730, plus 31.00% of excess over $  48000    18.45% effective overall tax rate(computed on tax on middle of income range)
Over $  50000 but not over $  52000    $   9350, plus 32.00% of excess over $  50000    18.96% effective overall tax rate(computed on tax on middle of income range)
Over $  52000 but not over $  54000    $   9990, plus 33.00% of excess over $  52000    19.47% effective overall tax rate(computed on tax on middle of income range)
Over $  54000 but not over $  56000    $  10650, plus 34.00% of excess over $  54000    19.98% effective overall tax rate(computed on tax on middle of income range)
Over $  56000 but not over $  58000    $  11330, plus 35.00% of excess over $  56000    20.49% effective overall tax rate(computed on tax on middle of income range)
Over $  58000 but not over $  60000    $  12030, plus 36.00% of excess over $  58000    21.00% effective overall tax rate(computed on tax on middle of income range)
Over $  60000 but not over $  62000    $  12750, plus 37.00% of excess over $  60000    21.51% effective overall tax rate(computed on tax on middle of income range)
Over $  62000 but not over $  64000    $  13490, plus 38.00% of excess over $  62000    22.02% effective overall tax rate(computed on tax on middle of income range)
Over $  64000 but not over $  66000    $  14250, plus 39.00% of excess over $  64000    22.52% effective overall tax rate(computed on tax on middle of income range)
Over $  66000 but not over $  68000    $  15030, plus 40.00% of excess over $  66000    23.03% effective overall tax rate(computed on tax on middle of income range)
Over $  68000 but not over $  70000    $  15830, plus 41.00% of excess over $  68000    23.54% effective overall tax rate(computed on tax on middle of income range)
Over $  70000 but not over $  72000    $  16650, plus 42.00% of excess over $  70000    24.04% effective overall tax rate(computed on tax on middle of income range)
Over $  72000 but not over $  74000    $  17490, plus 43.00% of excess over $  72000    24.55% effective overall tax rate(computed on tax on middle of income range)
Over $  74000 but not over $  76000    $  18350, plus 44.00% of excess over $  74000    25.05% effective overall tax rate(computed on tax on middle of income range)
Over $  76000 but not over $  78000    $  19230, plus 45.00% of excess over $  76000    25.56% effective overall tax rate(computed on tax on middle of income range)
Over $  78000 but not over $  80000    $  20130, plus 46.00% of excess over $  78000    26.06% effective overall tax rate(computed on tax on middle of income range)
Over $  80000 but not over $  82000    $  21050, plus 47.00% of excess over $  80000    26.57% effective overall tax rate(computed on tax on middle of income range)
Over $  82000 but not over $  84000    $  21990, plus 48.00% of excess over $  82000    27.07% effective overall tax rate(computed on tax on middle of income range)
Over $  84000 but not over $  86000    $  22950, plus 49.00% of excess over $  84000    27.58% effective overall tax rate(computed on tax on middle of income range)
Over $  86000 but not over $  88000    $  23930, plus 50.00% of excess over $  86000    28.08% effective overall tax rate(computed on tax on middle of income range)
Over $  88000 but not over $  90000    $  24930, plus 51.00% of excess over $  88000    28.58% effective overall tax rate(computed on tax on middle of income range)
Over $  90000 but not over $  92000    $  25950, plus 52.00% of excess over $  90000    29.09% effective overall tax rate(computed on tax on middle of income range)
Over $  92000 but not over $  94000    $  26990, plus 53.00% of excess over $  92000    29.59% effective overall tax rate(computed on tax on middle of income range)
Over $  94000 but not over $  96000    $  28050, plus 54.00% of excess over $  94000    30.09% effective overall tax rate(computed on tax on middle of income range)
Over $  96000 but not over $  98000    $  29130, plus 55.00% of excess over $  96000    30.60% effective overall tax rate(computed on tax on middle of income range)
Over $  98000 but not over $ 100000    $  30230, plus 56.00% of excess over $  98000    31.10% effective overall tax rate(computed on tax on middle of income range)
Over $ 100000 but not over $ 150000    $  31350, plus 60.00% of excess over $ 100000    37.08% effective overall tax rate(computed on tax on middle of income range)
Over $ 150000 but not over $ 200000    $  61350, plus 64.00% of excess over $ 150000    44.20% effective overall tax rate(computed on tax on middle of income range)
Over $ 200000 but not over $ 300000    $  93350, plus 68.00% of excess over $ 200000    50.94% effective overall tax rate(computed on tax on middle of income range)
Over $ 300000 but not over $ 500000    $ 161350, plus 71.00% of excess over $ 300000    58.09% effective overall tax rate(computed on tax on middle of income range)
Over $ 500000 but not over $1000000    $ 303350, plus 72.00% of excess over $ 500000    64.45% effective overall tax rate(computed on tax on middle of income range)
Over $1000000 ........................ $ 663350, plus 73.00% of excess over $1000000    66.34% <=> 73.00% effective overall tax rate as income goes to infinity
1921 tax rate schedule with figures INFLATION-ADJUSTED to 2013 dollars(for SINGLE taxpayer) ... the multiplier is 12.891396648 based on the average of the last 12 monthly figures through and including April 2013 released in mid-May 2013)
Inflation multiplier was determined from Bureau of Labor Statistics at [CPI Inflation Calculator | Historical Consumer Price Index]
Computation of the actual taxes due and the effective overall tax rate at each level were done by Jeff Sagarin.

Not over $  51566 ...................................  4.00% of the taxable income       4.00% effective overall tax rate
Over $  51566 but not over $  64457    $   2063, plus  8.00% of excess over $  51566     4.44% effective overall tax rate(computed on tax on middle of income range)
Over $  64457 but not over $  77348    $   3094, plus  9.00% of excess over $  64457     5.18% effective overall tax rate(computed on tax on middle of income range)
Over $  77348 but not over $ 103131    $   4254, plus 10.00% of excess over $  77348     6.14% effective overall tax rate(computed on tax on middle of income range)
Over $ 103131 but not over $ 128914    $   6832, plus 11.00% of excess over $ 103131     7.11% effective overall tax rate(computed on tax on middle of income range)
Over $ 128914 but not over $ 154697    $   9669, plus 12.00% of excess over $ 128914     7.91% effective overall tax rate(computed on tax on middle of income range)
Over $ 154697 but not over $ 180480    $  12762, plus 13.00% of excess over $ 154697     8.62% effective overall tax rate(computed on tax on middle of income range)
Over $ 180480 but not over $ 206262    $  16114, plus 14.00% of excess over $ 180480     9.27% effective overall tax rate(computed on tax on middle of income range)
Over $ 206262 but not over $ 232045    $  19724, plus 15.00% of excess over $ 206262     9.88% effective overall tax rate(computed on tax on middle of income range)
Over $ 232045 but not over $ 257828    $  23591, plus 16.00% of excess over $ 232045    10.47% effective overall tax rate(computed on tax on middle of income range)
Over $ 257828 but not over $ 283611    $  27717, plus 17.00% of excess over $ 257828    11.05% effective overall tax rate(computed on tax on middle of income range)
Over $ 283611 but not over $ 309394    $  32100, plus 18.00% of excess over $ 283611    11.61% effective overall tax rate(computed on tax on middle of income range)
Over $ 309394 but not over $ 335176    $  36740, plus 19.00% of excess over $ 309394    12.16% effective overall tax rate(computed on tax on middle of income range)
Over $ 335176 but not over $ 360959    $  41639, plus 20.00% of excess over $ 335176    12.70% effective overall tax rate(computed on tax on middle of income range)
Over $ 360959 but not over $ 386742    $  46796, plus 21.00% of excess over $ 360959    13.24% effective overall tax rate(computed on tax on middle of income range)
Over $ 386742 but not over $ 412525    $  52210, plus 22.00% of excess over $ 386742    13.77% effective overall tax rate(computed on tax on middle of income range)
Over $ 412525 but not over $ 438307    $  57882, plus 23.00% of excess over $ 412525    14.30% effective overall tax rate(computed on tax on middle of income range)
Over $ 438307 but not over $ 464090    $  63812, plus 24.00% of excess over $ 438307    14.83% effective overall tax rate(computed on tax on middle of income range)
Over $ 464090 but not over $ 489873    $  70000, plus 25.00% of excess over $ 464090    15.35% effective overall tax rate(computed on tax on middle of income range)
Over $ 489873 but not over $ 515656    $  76446, plus 26.00% of excess over $ 489873    15.87% effective overall tax rate(computed on tax on middle of income range)
Over $ 515656 but not over $ 541439    $  83150, plus 27.00% of excess over $ 515656    16.39% effective overall tax rate(computed on tax on middle of income range)
Over $ 541439 but not over $ 567221    $  90111, plus 28.00% of excess over $ 541439    16.91% effective overall tax rate(computed on tax on middle of income range)
Over $ 567221 but not over $ 593004    $  97330, plus 29.00% of excess over $ 567221    17.42% effective overall tax rate(computed on tax on middle of income range)
Over $ 593004 but not over $ 618787    $ 104807, plus 30.00% of excess over $ 593004    17.94% effective overall tax rate(computed on tax on middle of income range)
Over $ 618787 but not over $ 644570    $ 112542, plus 31.00% of excess over $ 618787    18.45% effective overall tax rate(computed on tax on middle of income range)
Over $ 644570 but not over $ 670353    $ 120535, plus 32.00% of excess over $ 644570    18.96% effective overall tax rate(computed on tax on middle of income range)
Over $ 670353 but not over $ 696135    $ 128785, plus 33.00% of excess over $ 670353    19.47% effective overall tax rate(computed on tax on middle of income range)
Over $ 696135 but not over $ 721918    $ 137293, plus 34.00% of excess over $ 696135    19.98% effective overall tax rate(computed on tax on middle of income range)
Over $ 721918 but not over $ 747701    $ 146060, plus 35.00% of excess over $ 721918    20.49% effective overall tax rate(computed on tax on middle of income range)
Over $ 747701 but not over $ 773484    $ 155084, plus 36.00% of excess over $ 747701    21.00% effective overall tax rate(computed on tax on middle of income range)
Over $ 773484 but not over $ 799267    $ 164365, plus 37.00% of excess over $ 773484    21.51% effective overall tax rate(computed on tax on middle of income range)
Over $ 799267 but not over $ 825049    $ 173905, plus 38.00% of excess over $ 799267    22.02% effective overall tax rate(computed on tax on middle of income range)
Over $ 825049 but not over $ 850832    $ 183702, plus 39.00% of excess over $ 825049    22.52% effective overall tax rate(computed on tax on middle of income range)
Over $ 850832 but not over $ 876615    $ 193758, plus 40.00% of excess over $ 850832    23.03% effective overall tax rate(computed on tax on middle of income range)
Over $ 876615 but not over $ 902398    $ 204071, plus 41.00% of excess over $ 876615    23.54% effective overall tax rate(computed on tax on middle of income range)
Over $ 902398 but not over $ 928181    $ 214642, plus 42.00% of excess over $ 902398    24.04% effective overall tax rate(computed on tax on middle of income range)
Over $ 928181 but not over $ 953963    $ 225471, plus 43.00% of excess over $ 928181    24.55% effective overall tax rate(computed on tax on middle of income range)
Over $ 953963 but not over $ 979746    $ 236557, plus 44.00% of excess over $ 953963    25.05% effective overall tax rate(computed on tax on middle of income range)
Over $ 979746 but not over $1005529    $ 247902, plus 45.00% of excess over $ 979746    25.56% effective overall tax rate(computed on tax on middle of income range)
Over $1005529 but not over $1031312    $ 259504, plus 46.00% of excess over $1005529    26.06% effective overall tax rate(computed on tax on middle of income range)
Over $1031312 but not over $1057095    $ 271364, plus 47.00% of excess over $1031312    26.57% effective overall tax rate(computed on tax on middle of income range)
Over $1057095 but not over $1082877    $ 283482, plus 48.00% of excess over $1057095    27.07% effective overall tax rate(computed on tax on middle of income range)
Over $1082877 but not over $1108660    $ 295858, plus 49.00% of excess over $1082877    27.58% effective overall tax rate(computed on tax on middle of income range)
Over $1108660 but not over $1134443    $ 308491, plus 50.00% of excess over $1108660    28.08% effective overall tax rate(computed on tax on middle of income range)
Over $1134443 but not over $1160226    $ 321383, plus 51.00% of excess over $1134443    28.58% effective overall tax rate(computed on tax on middle of income range)
Over $1160226 but not over $1186008    $ 334532, plus 52.00% of excess over $1160226    29.09% effective overall tax rate(computed on tax on middle of income range)
Over $1186008 but not over $1211791    $ 347939, plus 53.00% of excess over $1186008    29.59% effective overall tax rate(computed on tax on middle of income range)
Over $1211791 but not over $1237574    $ 361604, plus 54.00% of excess over $1211791    30.09% effective overall tax rate(computed on tax on middle of income range)
Over $1237574 but not over $1263357    $ 375526, plus 55.00% of excess over $1237574    30.60% effective overall tax rate(computed on tax on middle of income range)
Over $1263357 but not over $1289140    $ 389707, plus 56.00% of excess over $1263357    31.10% effective overall tax rate(computed on tax on middle of income range)
Over $1289140 but not over $1933709    $ 404145, plus 60.00% of excess over $1289140    37.08% effective overall tax rate(computed on tax on middle of income range)
Over $1933709 but not over $2578279    $ 790887, plus 64.00% of excess over $1933709    44.20% effective overall tax rate(computed on tax on middle of income range)
Over $2578279 but not over $3867419    $1203412, plus 68.00% of excess over $2578279    50.94% effective overall tax rate(computed on tax on middle of income range)
Over $3867419 but not over $6445698    $2080027, plus 71.00% of excess over $3867419    58.09% effective overall tax rate(computed on tax on middle of income range)
Over $6445698 but not over $12891397   $3910605, plus 72.00% of excess over $6445698    64.45% effective overall tax rate(computed on tax on middle of income range)
Over $12891397 ........................$8551508, plus 73.00% of excess over $12891397   66.33% <=> 73.00% effective overall tax rate as income goes to infinity
                                                                              1921     1954                                               using exact decimal values of taxes (not integers)
                                                                              ____     ____
taxable income in 2013 dollars $     10000     tax due in  2013 dollars $      400     2000     percentage of taxable income=  4.00%    for tax year 1921  percentage of 1954 taxes  20.00%
taxable income in 2013 dollars $     20000     tax due in  2013 dollars $      800     4057     percentage of taxable income=  4.00%    for tax year 1921  percentage of 1954 taxes  19.72%
taxable income in 2013 dollars $     30000     tax due in  2013 dollars $     1200     6257     percentage of taxable income=  4.00%    for tax year 1921  percentage of 1954 taxes  19.18%
taxable income in 2013 dollars $     40000     tax due in  2013 dollars $     1600     8684     percentage of taxable income=  4.00%    for tax year 1921  percentage of 1954 taxes  18.42%
taxable income in 2013 dollars $     50000     tax due in  2013 dollars $     2000    11284     percentage of taxable income=  4.00%    for tax year 1921  percentage of 1954 taxes  17.72%
taxable income in 2013 dollars $     60000     tax due in  2013 dollars $     2737    14226     percentage of taxable income=  4.56%    for tax year 1921  percentage of 1954 taxes  19.24%
taxable income in 2013 dollars $     70000     tax due in  2013 dollars $     3593    17280     percentage of taxable income=  5.13%    for tax year 1921  percentage of 1954 taxes  20.79%
taxable income in 2013 dollars $     80000     tax due in  2013 dollars $     4519    20680     percentage of taxable income=  5.65%    for tax year 1921  percentage of 1954 taxes  21.85%
taxable income in 2013 dollars $     90000     tax due in  2013 dollars $     5519    24249     percentage of taxable income=  6.13%    for tax year 1921  percentage of 1954 taxes  22.76%
taxable income in 2013 dollars $    100000     tax due in  2013 dollars $     6519    28049     percentage of taxable income=  6.52%    for tax year 1921  percentage of 1954 taxes  23.24%
taxable income in 2013 dollars $    150000     tax due in  2013 dollars $    12199    50981     percentage of taxable income=  8.13%    for tax year 1921  percentage of 1954 taxes  23.93%
taxable income in 2013 dollars $    200000     tax due in  2013 dollars $    18847    78540     percentage of taxable income=  9.42%    for tax year 1921  percentage of 1954 taxes  24.00%
taxable income in 2013 dollars $    250000     tax due in  2013 dollars $    26464   108849     percentage of taxable income= 10.59%    for tax year 1921  percentage of 1954 taxes  24.31%
taxable income in 2013 dollars $    300000     tax due in  2013 dollars $    35050   140614     percentage of taxable income= 11.68%    for tax year 1921  percentage of 1954 taxes  24.93%
taxable income in 2013 dollars $    350000     tax due in  2013 dollars $    44604   174075     percentage of taxable income= 12.74%    for tax year 1921  percentage of 1954 taxes  25.62%
taxable income in 2013 dollars $    400000     tax due in  2013 dollars $    55127   209251     percentage of taxable income= 13.78%    for tax year 1921  percentage of 1954 taxes  26.34%
taxable income in 2013 dollars $    450000     tax due in  2013 dollars $    66619   245884     percentage of taxable income= 14.80%    for tax year 1921  percentage of 1954 taxes  27.09%
taxable income in 2013 dollars $    500000     tax due in  2013 dollars $    79079   283384     percentage of taxable income= 15.82%    for tax year 1921  percentage of 1954 taxes  27.91%
taxable income in 2013 dollars $    600000     tax due in  2013 dollars $   106906   360943     percentage of taxable income= 17.82%    for tax year 1921  percentage of 1954 taxes  29.62%
taxable income in 2013 dollars $    700000     tax due in  2013 dollars $   138607   442341     percentage of taxable income= 19.80%    for tax year 1921  percentage of 1954 taxes  31.33%
taxable income in 2013 dollars $    800000     tax due in  2013 dollars $   174184   527179     percentage of taxable income= 21.77%    for tax year 1921  percentage of 1954 taxes  33.04%
taxable income in 2013 dollars $    900000     tax due in  2013 dollars $   213659   615023     percentage of taxable income= 23.74%    for tax year 1921  percentage of 1954 taxes  34.74%
taxable income in 2013 dollars $   1000000     tax due in  2013 dollars $   257016   704023     percentage of taxable income= 25.70%    for tax year 1921  percentage of 1954 taxes  36.51%

1922 tax rate schedule with ORIGINAL dollar figures(for SINGLE taxpayer)
Historical data for the marginal rates was obtained at the Tax Foundation website at [U.S. Federal Individual Income Tax Rates History, 1913-2011 (Nominal and Inflation-Adjusted Brackets)]
Computation of the actual taxes due and the effective overall tax rate at each level were done by Jeff Sagarin.

Not over $   4000 ...................................  4.00% of the taxable income       4.00% effective overall tax rate
Over $   4000 but not over $   6000    $    160, plus  8.00% of excess over $   4000     4.80% effective overall tax rate(computed on tax on middle of income range)
Over $   6000 but not over $  10000    $    320, plus  9.00% of excess over $   6000     6.25% effective overall tax rate(computed on tax on middle of income range)
Over $  10000 but not over $  12000    $    680, plus 10.00% of excess over $  10000     7.09% effective overall tax rate(computed on tax on middle of income range)
Over $  12000 but not over $  14000    $    880, plus 11.00% of excess over $  12000     7.62% effective overall tax rate(computed on tax on middle of income range)
Over $  14000 but not over $  16000    $   1100, plus 12.00% of excess over $  14000     8.13% effective overall tax rate(computed on tax on middle of income range)
Over $  16000 but not over $  18000    $   1340, plus 13.00% of excess over $  16000     8.65% effective overall tax rate(computed on tax on middle of income range)
Over $  18000 but not over $  20000    $   1600, plus 14.00% of excess over $  18000     9.16% effective overall tax rate(computed on tax on middle of income range)
Over $  20000 but not over $  22000    $   1880, plus 16.00% of excess over $  20000     9.71% effective overall tax rate(computed on tax on middle of income range)
Over $  22000 but not over $  24000    $   2200, plus 17.00% of excess over $  22000    10.30% effective overall tax rate(computed on tax on middle of income range)
Over $  24000 but not over $  26000    $   2540, plus 18.00% of excess over $  24000    10.88% effective overall tax rate(computed on tax on middle of income range)
Over $  26000 but not over $  28000    $   2900, plus 19.00% of excess over $  26000    11.44% effective overall tax rate(computed on tax on middle of income range)
Over $  28000 but not over $  30000    $   3280, plus 20.00% of excess over $  28000    12.00% effective overall tax rate(computed on tax on middle of income range)
Over $  30000 but not over $  32000    $   3680, plus 21.00% of excess over $  30000    12.55% effective overall tax rate(computed on tax on middle of income range)
Over $  32000 but not over $  36000    $   4100, plus 23.00% of excess over $  32000    13.41% effective overall tax rate(computed on tax on middle of income range)
Over $  36000 but not over $  38000    $   5020, plus 24.00% of excess over $  36000    14.22% effective overall tax rate(computed on tax on middle of income range)
Over $  38000 but not over $  40000    $   5500, plus 25.00% of excess over $  38000    14.74% effective overall tax rate(computed on tax on middle of income range)
Over $  40000 but not over $  42000    $   6000, plus 26.00% of excess over $  40000    15.27% effective overall tax rate(computed on tax on middle of income range)
Over $  42000 but not over $  44000    $   6520, plus 27.00% of excess over $  42000    15.79% effective overall tax rate(computed on tax on middle of income range)
Over $  44000 but not over $  46000    $   7060, plus 28.00% of excess over $  44000    16.31% effective overall tax rate(computed on tax on middle of income range)
Over $  46000 but not over $  48000    $   7620, plus 29.00% of excess over $  46000    16.83% effective overall tax rate(computed on tax on middle of income range)
Over $  48000 but not over $  50000    $   8200, plus 30.00% of excess over $  48000    17.35% effective overall tax rate(computed on tax on middle of income range)
Over $  50000 but not over $  52000    $   8800, plus 31.00% of excess over $  50000    17.86% effective overall tax rate(computed on tax on middle of income range)
Over $  52000 but not over $  54000    $   9420, plus 32.00% of excess over $  52000    18.38% effective overall tax rate(computed on tax on middle of income range)
Over $  54000 but not over $  56000    $  10060, plus 33.00% of excess over $  54000    18.89% effective overall tax rate(computed on tax on middle of income range)
Over $  56000 but not over $  58000    $  10720, plus 34.00% of excess over $  56000    19.40% effective overall tax rate(computed on tax on middle of income range)
Over $  58000 but not over $  60000    $  11400, plus 35.00% of excess over $  58000    19.92% effective overall tax rate(computed on tax on middle of income range)
Over $  60000 but not over $  62000    $  12100, plus 36.00% of excess over $  60000    20.43% effective overall tax rate(computed on tax on middle of income range)
Over $  62000 but not over $  64000    $  12820, plus 37.00% of excess over $  62000    20.94% effective overall tax rate(computed on tax on middle of income range)
Over $  64000 but not over $  66000    $  13560, plus 38.00% of excess over $  64000    21.45% effective overall tax rate(computed on tax on middle of income range)
Over $  66000 but not over $  68000    $  14320, plus 39.00% of excess over $  66000    21.96% effective overall tax rate(computed on tax on middle of income range)
Over $  68000 but not over $  70000    $  15100, plus 40.00% of excess over $  68000    22.46% effective overall tax rate(computed on tax on middle of income range)
Over $  70000 but not over $  72000    $  15900, plus 41.00% of excess over $  70000    22.97% effective overall tax rate(computed on tax on middle of income range)
Over $  72000 but not over $  74000    $  16720, plus 42.00% of excess over $  72000    23.48% effective overall tax rate(computed on tax on middle of income range)
Over $  74000 but not over $  76000    $  17560, plus 43.00% of excess over $  74000    23.99% effective overall tax rate(computed on tax on middle of income range)
Over $  76000 but not over $  78000    $  18420, plus 44.00% of excess over $  76000    24.49% effective overall tax rate(computed on tax on middle of income range)
Over $  78000 but not over $  80000    $  19300, plus 45.00% of excess over $  78000    25.00% effective overall tax rate(computed on tax on middle of income range)
Over $  80000 but not over $  82000    $  20200, plus 46.00% of excess over $  80000    25.51% effective overall tax rate(computed on tax on middle of income range)
Over $  82000 but not over $  84000    $  21120, plus 47.00% of excess over $  82000    26.01% effective overall tax rate(computed on tax on middle of income range)
Over $  84000 but not over $  86000    $  22060, plus 48.00% of excess over $  84000    26.52% effective overall tax rate(computed on tax on middle of income range)
Over $  86000 but not over $  88000    $  23020, plus 49.00% of excess over $  86000    27.02% effective overall tax rate(computed on tax on middle of income range)
Over $  88000 but not over $  90000    $  24000, plus 50.00% of excess over $  88000    27.53% effective overall tax rate(computed on tax on middle of income range)
Over $  90000 but not over $  92000    $  25000, plus 51.00% of excess over $  90000    28.03% effective overall tax rate(computed on tax on middle of income range)
Over $  92000 but not over $  94000    $  26020, plus 52.00% of excess over $  92000    28.54% effective overall tax rate(computed on tax on middle of income range)
Over $  94000 but not over $  96000    $  27060, plus 53.00% of excess over $  94000    29.04% effective overall tax rate(computed on tax on middle of income range)
Over $  96000 but not over $  98000    $  28120, plus 54.00% of excess over $  96000    29.55% effective overall tax rate(computed on tax on middle of income range)
Over $  98000 but not over $ 100000    $  29200, plus 55.00% of excess over $  98000    30.05% effective overall tax rate(computed on tax on middle of income range)
Over $ 100000 but not over $ 150000    $  30300, plus 56.00% of excess over $ 100000    35.44% effective overall tax rate(computed on tax on middle of income range)
Over $ 150000 but not over $ 200000    $  58300, plus 57.00% of excess over $ 150000    41.46% effective overall tax rate(computed on tax on middle of income range)
Over $ 200000 ........................ $  86800, plus 58.00% of excess over $ 200000    43.40% <=> 58.00% effective overall tax rate as income goes to infinity
1922 tax rate schedule with figures INFLATION-ADJUSTED to 2013 dollars(for SINGLE taxpayer) ... the multiplier is 13.735476191 based on the average of the last 12 monthly figures through and including April 2013 released in mid-May 2013)
Inflation multiplier was determined from Bureau of Labor Statistics at [CPI Inflation Calculator | Historical Consumer Price Index]
Computation of the actual taxes due and the effective overall tax rate at each level were done by Jeff Sagarin.

Not over $  54942 ...................................  4.00% of the taxable income       4.00% effective overall tax rate
Over $  54942 but not over $  82413    $   2198, plus  8.00% of excess over $  54942     4.80% effective overall tax rate(computed on tax on middle of income range)
Over $  82413 but not over $ 137355    $   4395, plus  9.00% of excess over $  82413     6.25% effective overall tax rate(computed on tax on middle of income range)
Over $ 137355 but not over $ 164826    $   9340, plus 10.00% of excess over $ 137355     7.09% effective overall tax rate(computed on tax on middle of income range)
Over $ 164826 but not over $ 192297    $  12087, plus 11.00% of excess over $ 164826     7.62% effective overall tax rate(computed on tax on middle of income range)
Over $ 192297 but not over $ 219768    $  15109, plus 12.00% of excess over $ 192297     8.13% effective overall tax rate(computed on tax on middle of income range)
Over $ 219768 but not over $ 247239    $  18406, plus 13.00% of excess over $ 219768     8.65% effective overall tax rate(computed on tax on middle of income range)
Over $ 247239 but not over $ 274710    $  21977, plus 14.00% of excess over $ 247239     9.16% effective overall tax rate(computed on tax on middle of income range)
Over $ 274710 but not over $ 302180    $  25823, plus 16.00% of excess over $ 274710     9.71% effective overall tax rate(computed on tax on middle of income range)
Over $ 302180 but not over $ 329651    $  30218, plus 17.00% of excess over $ 302180    10.30% effective overall tax rate(computed on tax on middle of income range)
Over $ 329651 but not over $ 357122    $  34888, plus 18.00% of excess over $ 329651    10.88% effective overall tax rate(computed on tax on middle of income range)
Over $ 357122 but not over $ 384593    $  39833, plus 19.00% of excess over $ 357122    11.44% effective overall tax rate(computed on tax on middle of income range)
Over $ 384593 but not over $ 412064    $  45052, plus 20.00% of excess over $ 384593    12.00% effective overall tax rate(computed on tax on middle of income range)
Over $ 412064 but not over $ 439535    $  50547, plus 21.00% of excess over $ 412064    12.55% effective overall tax rate(computed on tax on middle of income range)
Over $ 439535 but not over $ 494477    $  56315, plus 23.00% of excess over $ 439535    13.41% effective overall tax rate(computed on tax on middle of income range)
Over $ 494477 but not over $ 521948    $  68952, plus 24.00% of excess over $ 494477    14.22% effective overall tax rate(computed on tax on middle of income range)
Over $ 521948 but not over $ 549419    $  75545, plus 25.00% of excess over $ 521948    14.74% effective overall tax rate(computed on tax on middle of income range)
Over $ 549419 but not over $ 576890    $  82413, plus 26.00% of excess over $ 549419    15.27% effective overall tax rate(computed on tax on middle of income range)
Over $ 576890 but not over $ 604361    $  89555, plus 27.00% of excess over $ 576890    15.79% effective overall tax rate(computed on tax on middle of income range)
Over $ 604361 but not over $ 631832    $  96972, plus 28.00% of excess over $ 604361    16.31% effective overall tax rate(computed on tax on middle of income range)
Over $ 631832 but not over $ 659303    $ 104664, plus 29.00% of excess over $ 631832    16.83% effective overall tax rate(computed on tax on middle of income range)
Over $ 659303 but not over $ 686774    $ 112631, plus 30.00% of excess over $ 659303    17.35% effective overall tax rate(computed on tax on middle of income range)
Over $ 686774 but not over $ 714245    $ 120872, plus 31.00% of excess over $ 686774    17.86% effective overall tax rate(computed on tax on middle of income range)
Over $ 714245 but not over $ 741716    $ 129388, plus 32.00% of excess over $ 714245    18.38% effective overall tax rate(computed on tax on middle of income range)
Over $ 741716 but not over $ 769187    $ 138179, plus 33.00% of excess over $ 741716    18.89% effective overall tax rate(computed on tax on middle of income range)
Over $ 769187 but not over $ 796658    $ 147244, plus 34.00% of excess over $ 769187    19.40% effective overall tax rate(computed on tax on middle of income range)
Over $ 796658 but not over $ 824129    $ 156584, plus 35.00% of excess over $ 796658    19.92% effective overall tax rate(computed on tax on middle of income range)
Over $ 824129 but not over $ 851600    $ 166199, plus 36.00% of excess over $ 824129    20.43% effective overall tax rate(computed on tax on middle of income range)
Over $ 851600 but not over $ 879070    $ 176089, plus 37.00% of excess over $ 851600    20.94% effective overall tax rate(computed on tax on middle of income range)
Over $ 879070 but not over $ 906541    $ 186253, plus 38.00% of excess over $ 879070    21.45% effective overall tax rate(computed on tax on middle of income range)
Over $ 906541 but not over $ 934012    $ 196692, plus 39.00% of excess over $ 906541    21.96% effective overall tax rate(computed on tax on middle of income range)
Over $ 934012 but not over $ 961483    $ 207406, plus 40.00% of excess over $ 934012    22.46% effective overall tax rate(computed on tax on middle of income range)
Over $ 961483 but not over $ 988954    $ 218394, plus 41.00% of excess over $ 961483    22.97% effective overall tax rate(computed on tax on middle of income range)
Over $ 988954 but not over $1016425    $ 229657, plus 42.00% of excess over $ 988954    23.48% effective overall tax rate(computed on tax on middle of income range)
Over $1016425 but not over $1043896    $ 241195, plus 43.00% of excess over $1016425    23.99% effective overall tax rate(computed on tax on middle of income range)
Over $1043896 but not over $1071367    $ 253007, plus 44.00% of excess over $1043896    24.49% effective overall tax rate(computed on tax on middle of income range)
Over $1071367 but not over $1098838    $ 265095, plus 45.00% of excess over $1071367    25.00% effective overall tax rate(computed on tax on middle of income range)
Over $1098838 but not over $1126309    $ 277457, plus 46.00% of excess over $1098838    25.51% effective overall tax rate(computed on tax on middle of income range)
Over $1126309 but not over $1153780    $ 290093, plus 47.00% of excess over $1126309    26.01% effective overall tax rate(computed on tax on middle of income range)
Over $1153780 but not over $1181251    $ 303005, plus 48.00% of excess over $1153780    26.52% effective overall tax rate(computed on tax on middle of income range)
Over $1181251 but not over $1208722    $ 316191, plus 49.00% of excess over $1181251    27.02% effective overall tax rate(computed on tax on middle of income range)
Over $1208722 but not over $1236193    $ 329651, plus 50.00% of excess over $1208722    27.53% effective overall tax rate(computed on tax on middle of income range)
Over $1236193 but not over $1263664    $ 343387, plus 51.00% of excess over $1236193    28.03% effective overall tax rate(computed on tax on middle of income range)
Over $1263664 but not over $1291135    $ 357397, plus 52.00% of excess over $1263664    28.54% effective overall tax rate(computed on tax on middle of income range)
Over $1291135 but not over $1318606    $ 371682, plus 53.00% of excess over $1291135    29.04% effective overall tax rate(computed on tax on middle of income range)
Over $1318606 but not over $1346077    $ 386242, plus 54.00% of excess over $1318606    29.55% effective overall tax rate(computed on tax on middle of income range)
Over $1346077 but not over $1373548    $ 401076, plus 55.00% of excess over $1346077    30.05% effective overall tax rate(computed on tax on middle of income range)
Over $1373548 but not over $2060321    $ 416185, plus 56.00% of excess over $1373548    35.44% effective overall tax rate(computed on tax on middle of income range)
Over $2060321 but not over $2747095    $ 800778, plus 57.00% of excess over $2060321    41.46% effective overall tax rate(computed on tax on middle of income range)
Over $2747095 ........................ $1192239, plus 58.00% of excess over $2747095    43.40% <=> 58.00% effective overall tax rate as income goes to infinity
                                                                              1922     1954                                               using exact decimal values of taxes (not integers)
                                                                              ____     ____
taxable income in 2013 dollars $     10000     tax due in  2013 dollars $      400     2000     percentage of taxable income=  4.00%    for tax year 1922  percentage of 1954 taxes  20.00%
taxable income in 2013 dollars $     20000     tax due in  2013 dollars $      800     4057     percentage of taxable income=  4.00%    for tax year 1922  percentage of 1954 taxes  19.72%
taxable income in 2013 dollars $     30000     tax due in  2013 dollars $     1200     6257     percentage of taxable income=  4.00%    for tax year 1922  percentage of 1954 taxes  19.18%
taxable income in 2013 dollars $     40000     tax due in  2013 dollars $     1600     8684     percentage of taxable income=  4.00%    for tax year 1922  percentage of 1954 taxes  18.42%
taxable income in 2013 dollars $     50000     tax due in  2013 dollars $     2000    11284     percentage of taxable income=  4.00%    for tax year 1922  percentage of 1954 taxes  17.72%
taxable income in 2013 dollars $     60000     tax due in  2013 dollars $     2602    14226     percentage of taxable income=  4.34%    for tax year 1922  percentage of 1954 taxes  18.29%
taxable income in 2013 dollars $     70000     tax due in  2013 dollars $     3402    17280     percentage of taxable income=  4.86%    for tax year 1922  percentage of 1954 taxes  19.69%
taxable income in 2013 dollars $     80000     tax due in  2013 dollars $     4202    20680     percentage of taxable income=  5.25%    for tax year 1922  percentage of 1954 taxes  20.32%
taxable income in 2013 dollars $     90000     tax due in  2013 dollars $     5078    24249     percentage of taxable income=  5.64%    for tax year 1922  percentage of 1954 taxes  20.94%
taxable income in 2013 dollars $    100000     tax due in  2013 dollars $     5978    28049     percentage of taxable income=  5.98%    for tax year 1922  percentage of 1954 taxes  21.31%
taxable income in 2013 dollars $    150000     tax due in  2013 dollars $    10605    50981     percentage of taxable income=  7.07%    for tax year 1922  percentage of 1954 taxes  20.80%
taxable income in 2013 dollars $    200000     tax due in  2013 dollars $    16033    78540     percentage of taxable income=  8.02%    for tax year 1922  percentage of 1954 taxes  20.41%
taxable income in 2013 dollars $    250000     tax due in  2013 dollars $    22363   108849     percentage of taxable income=  8.95%    for tax year 1922  percentage of 1954 taxes  20.55%
taxable income in 2013 dollars $    300000     tax due in  2013 dollars $    29869   140614     percentage of taxable income=  9.96%    for tax year 1922  percentage of 1954 taxes  21.24%
taxable income in 2013 dollars $    350000     tax due in  2013 dollars $    38551   174075     percentage of taxable income= 11.01%    for tax year 1922  percentage of 1954 taxes  22.15%
taxable income in 2013 dollars $    400000     tax due in  2013 dollars $    48134   209251     percentage of taxable income= 12.03%    for tax year 1922  percentage of 1954 taxes  23.00%
taxable income in 2013 dollars $    450000     tax due in  2013 dollars $    58722   245884     percentage of taxable income= 13.05%    for tax year 1922  percentage of 1954 taxes  23.88%
taxable income in 2013 dollars $    500000     tax due in  2013 dollars $    70278   283384     percentage of taxable income= 14.06%    for tax year 1922  percentage of 1954 taxes  24.80%
taxable income in 2013 dollars $    600000     tax due in  2013 dollars $    95795   360943     percentage of taxable income= 15.97%    for tax year 1922  percentage of 1954 taxes  26.54%
taxable income in 2013 dollars $    700000     tax due in  2013 dollars $   124972   442341     percentage of taxable income= 17.85%    for tax year 1922  percentage of 1954 taxes  28.25%
taxable income in 2013 dollars $    800000     tax due in  2013 dollars $   157754   527179     percentage of taxable income= 19.72%    for tax year 1922  percentage of 1954 taxes  29.92%
taxable income in 2013 dollars $    900000     tax due in  2013 dollars $   194206   615023     percentage of taxable income= 21.58%    for tax year 1922  percentage of 1954 taxes  31.58%
taxable income in 2013 dollars $   1000000     tax due in  2013 dollars $   234296   704023     percentage of taxable income= 23.43%    for tax year 1922  percentage of 1954 taxes  33.28%

1923 tax rate schedule with ORIGINAL dollar figures(for SINGLE taxpayer)
Historical data for the marginal rates was obtained at the Tax Foundation website at [U.S. Federal Individual Income Tax Rates History, 1913-2011 (Nominal and Inflation-Adjusted Brackets)]
Computation of the actual taxes due and the effective overall tax rate at each level were done by Jeff Sagarin.

Not over $   4000 ...................................  4.00% of the taxable income       4.00% effective overall tax rate
Over $   4000 but not over $   6000    $    160, plus  8.00% of excess over $   4000     4.80% effective overall tax rate(computed on tax on middle of income range)
Over $   6000 but not over $  10000    $    320, plus  9.00% of excess over $   6000     6.25% effective overall tax rate(computed on tax on middle of income range)
Over $  10000 but not over $  12000    $    680, plus 10.00% of excess over $  10000     7.09% effective overall tax rate(computed on tax on middle of income range)
Over $  12000 but not over $  14000    $    880, plus 11.00% of excess over $  12000     7.62% effective overall tax rate(computed on tax on middle of income range)
Over $  14000 but not over $  16000    $   1100, plus 12.00% of excess over $  14000     8.13% effective overall tax rate(computed on tax on middle of income range)
Over $  16000 but not over $  18000    $   1340, plus 13.00% of excess over $  16000     8.65% effective overall tax rate(computed on tax on middle of income range)
Over $  18000 but not over $  20000    $   1600, plus 14.00% of excess over $  18000     9.16% effective overall tax rate(computed on tax on middle of income range)
Over $  20000 but not over $  22000    $   1880, plus 16.00% of excess over $  20000     9.71% effective overall tax rate(computed on tax on middle of income range)
Over $  22000 but not over $  24000    $   2200, plus 17.00% of excess over $  22000    10.30% effective overall tax rate(computed on tax on middle of income range)
Over $  24000 but not over $  26000    $   2540, plus 18.00% of excess over $  24000    10.88% effective overall tax rate(computed on tax on middle of income range)
Over $  26000 but not over $  28000    $   2900, plus 19.00% of excess over $  26000    11.44% effective overall tax rate(computed on tax on middle of income range)
Over $  28000 but not over $  30000    $   3280, plus 20.00% of excess over $  28000    12.00% effective overall tax rate(computed on tax on middle of income range)
Over $  30000 but not over $  32000    $   3680, plus 21.00% of excess over $  30000    12.55% effective overall tax rate(computed on tax on middle of income range)
Over $  32000 but not over $  36000    $   4100, plus 23.00% of excess over $  32000    13.41% effective overall tax rate(computed on tax on middle of income range)
Over $  36000 but not over $  38000    $   5020, plus 24.00% of excess over $  36000    14.22% effective overall tax rate(computed on tax on middle of income range)
Over $  38000 but not over $  40000    $   5500, plus 25.00% of excess over $  38000    14.74% effective overall tax rate(computed on tax on middle of income range)
Over $  40000 but not over $  42000    $   6000, plus 26.00% of excess over $  40000    15.27% effective overall tax rate(computed on tax on middle of income range)
Over $  42000 but not over $  44000    $   6520, plus 27.00% of excess over $  42000    15.79% effective overall tax rate(computed on tax on middle of income range)
Over $  44000 but not over $  46000    $   7060, plus 28.00% of excess over $  44000    16.31% effective overall tax rate(computed on tax on middle of income range)
Over $  46000 but not over $  48000    $   7620, plus 29.00% of excess over $  46000    16.83% effective overall tax rate(computed on tax on middle of income range)
Over $  48000 but not over $  50000    $   8200, plus 30.00% of excess over $  48000    17.35% effective overall tax rate(computed on tax on middle of income range)
Over $  50000 but not over $  52000    $   8800, plus 31.00% of excess over $  50000    17.86% effective overall tax rate(computed on tax on middle of income range)
Over $  52000 but not over $  54000    $   9420, plus 32.00% of excess over $  52000    18.38% effective overall tax rate(computed on tax on middle of income range)
Over $  54000 but not over $  56000    $  10060, plus 33.00% of excess over $  54000    18.89% effective overall tax rate(computed on tax on middle of income range)
Over $  56000 but not over $  58000    $  10720, plus 34.00% of excess over $  56000    19.40% effective overall tax rate(computed on tax on middle of income range)
Over $  58000 but not over $  60000    $  11400, plus 35.00% of excess over $  58000    19.92% effective overall tax rate(computed on tax on middle of income range)
Over $  60000 but not over $  62000    $  12100, plus 36.00% of excess over $  60000    20.43% effective overall tax rate(computed on tax on middle of income range)
Over $  62000 but not over $  64000    $  12820, plus 37.00% of excess over $  62000    20.94% effective overall tax rate(computed on tax on middle of income range)
Over $  64000 but not over $  66000    $  13560, plus 38.00% of excess over $  64000    21.45% effective overall tax rate(computed on tax on middle of income range)
Over $  66000 but not over $  68000    $  14320, plus 39.00% of excess over $  66000    21.96% effective overall tax rate(computed on tax on middle of income range)
Over $  68000 but not over $  70000    $  15100, plus 40.00% of excess over $  68000    22.46% effective overall tax rate(computed on tax on middle of income range)
Over $  70000 but not over $  72000    $  15900, plus 41.00% of excess over $  70000    22.97% effective overall tax rate(computed on tax on middle of income range)
Over $  72000 but not over $  74000    $  16720, plus 42.00% of excess over $  72000    23.48% effective overall tax rate(computed on tax on middle of income range)
Over $  74000 but not over $  76000    $  17560, plus 43.00% of excess over $  74000    23.99% effective overall tax rate(computed on tax on middle of income range)
Over $  76000 but not over $  78000    $  18420, plus 44.00% of excess over $  76000    24.49% effective overall tax rate(computed on tax on middle of income range)
Over $  78000 but not over $  80000    $  19300, plus 45.00% of excess over $  78000    25.00% effective overall tax rate(computed on tax on middle of income range)
Over $  80000 but not over $  82000    $  20200, plus 46.00% of excess over $  80000    25.51% effective overall tax rate(computed on tax on middle of income range)
Over $  82000 but not over $  84000    $  21120, plus 47.00% of excess over $  82000    26.01% effective overall tax rate(computed on tax on middle of income range)
Over $  84000 but not over $  86000    $  22060, plus 48.00% of excess over $  84000    26.52% effective overall tax rate(computed on tax on middle of income range)
Over $  86000 but not over $  88000    $  23020, plus 49.00% of excess over $  86000    27.02% effective overall tax rate(computed on tax on middle of income range)
Over $  88000 but not over $  90000    $  24000, plus 50.00% of excess over $  88000    27.53% effective overall tax rate(computed on tax on middle of income range)
Over $  90000 but not over $  92000    $  25000, plus 51.00% of excess over $  90000    28.03% effective overall tax rate(computed on tax on middle of income range)
Over $  92000 but not over $  94000    $  26020, plus 52.00% of excess over $  92000    28.54% effective overall tax rate(computed on tax on middle of income range)
Over $  94000 but not over $  96000    $  27060, plus 53.00% of excess over $  94000    29.04% effective overall tax rate(computed on tax on middle of income range)
Over $  96000 but not over $  98000    $  28120, plus 54.00% of excess over $  96000    29.55% effective overall tax rate(computed on tax on middle of income range)
Over $  98000 but not over $ 100000    $  29200, plus 55.00% of excess over $  98000    30.05% effective overall tax rate(computed on tax on middle of income range)
Over $ 100000 but not over $ 150000    $  30300, plus 56.00% of excess over $ 100000    35.44% effective overall tax rate(computed on tax on middle of income range)
Over $ 150000 but not over $ 200000    $  58300, plus 57.00% of excess over $ 150000    41.46% effective overall tax rate(computed on tax on middle of income range)
Over $ 200000 ........................ $  86800, plus 58.00% of excess over $ 200000    43.40% <=> 58.00% effective overall tax rate as income goes to infinity
1923 tax rate schedule with figures INFLATION-ADJUSTED to 2013 dollars(for SINGLE taxpayer) ... the multiplier is 13.494502924 based on the average of the last 12 monthly figures through and including April 2013 released in mid-May 2013)
Inflation multiplier was determined from Bureau of Labor Statistics at [CPI Inflation Calculator | Historical Consumer Price Index]
Computation of the actual taxes due and the effective overall tax rate at each level were done by Jeff Sagarin.

Not over $  53978 ...................................  4.00% of the taxable income       4.00% effective overall tax rate
Over $  53978 but not over $  80967    $   2159, plus  8.00% of excess over $  53978     4.80% effective overall tax rate(computed on tax on middle of income range)
Over $  80967 but not over $ 134945    $   4318, plus  9.00% of excess over $  80967     6.25% effective overall tax rate(computed on tax on middle of income range)
Over $ 134945 but not over $ 161934    $   9176, plus 10.00% of excess over $ 134945     7.09% effective overall tax rate(computed on tax on middle of income range)
Over $ 161934 but not over $ 188923    $  11875, plus 11.00% of excess over $ 161934     7.62% effective overall tax rate(computed on tax on middle of income range)
Over $ 188923 but not over $ 215912    $  14844, plus 12.00% of excess over $ 188923     8.13% effective overall tax rate(computed on tax on middle of income range)
Over $ 215912 but not over $ 242901    $  18083, plus 13.00% of excess over $ 215912     8.65% effective overall tax rate(computed on tax on middle of income range)
Over $ 242901 but not over $ 269890    $  21591, plus 14.00% of excess over $ 242901     9.16% effective overall tax rate(computed on tax on middle of income range)
Over $ 269890 but not over $ 296879    $  25370, plus 16.00% of excess over $ 269890     9.71% effective overall tax rate(computed on tax on middle of income range)
Over $ 296879 but not over $ 323868    $  29688, plus 17.00% of excess over $ 296879    10.30% effective overall tax rate(computed on tax on middle of income range)
Over $ 323868 but not over $ 350857    $  34276, plus 18.00% of excess over $ 323868    10.88% effective overall tax rate(computed on tax on middle of income range)
Over $ 350857 but not over $ 377846    $  39134, plus 19.00% of excess over $ 350857    11.44% effective overall tax rate(computed on tax on middle of income range)
Over $ 377846 but not over $ 404835    $  44262, plus 20.00% of excess over $ 377846    12.00% effective overall tax rate(computed on tax on middle of income range)
Over $ 404835 but not over $ 431824    $  49660, plus 21.00% of excess over $ 404835    12.55% effective overall tax rate(computed on tax on middle of income range)
Over $ 431824 but not over $ 485802    $  55327, plus 23.00% of excess over $ 431824    13.41% effective overall tax rate(computed on tax on middle of income range)
Over $ 485802 but not over $ 512791    $  67742, plus 24.00% of excess over $ 485802    14.22% effective overall tax rate(computed on tax on middle of income range)
Over $ 512791 but not over $ 539780    $  74220, plus 25.00% of excess over $ 512791    14.74% effective overall tax rate(computed on tax on middle of income range)
Over $ 539780 but not over $ 566769    $  80967, plus 26.00% of excess over $ 539780    15.27% effective overall tax rate(computed on tax on middle of income range)
Over $ 566769 but not over $ 593758    $  87984, plus 27.00% of excess over $ 566769    15.79% effective overall tax rate(computed on tax on middle of income range)
Over $ 593758 but not over $ 620747    $  95271, plus 28.00% of excess over $ 593758    16.31% effective overall tax rate(computed on tax on middle of income range)
Over $ 620747 but not over $ 647736    $ 102828, plus 29.00% of excess over $ 620747    16.83% effective overall tax rate(computed on tax on middle of income range)
Over $ 647736 but not over $ 674725    $ 110655, plus 30.00% of excess over $ 647736    17.35% effective overall tax rate(computed on tax on middle of income range)
Over $ 674725 but not over $ 701714    $ 118752, plus 31.00% of excess over $ 674725    17.86% effective overall tax rate(computed on tax on middle of income range)
Over $ 701714 but not over $ 728703    $ 127118, plus 32.00% of excess over $ 701714    18.38% effective overall tax rate(computed on tax on middle of income range)
Over $ 728703 but not over $ 755692    $ 135755, plus 33.00% of excess over $ 728703    18.89% effective overall tax rate(computed on tax on middle of income range)
Over $ 755692 but not over $ 782681    $ 144661, plus 34.00% of excess over $ 755692    19.40% effective overall tax rate(computed on tax on middle of income range)
Over $ 782681 but not over $ 809670    $ 153837, plus 35.00% of excess over $ 782681    19.92% effective overall tax rate(computed on tax on middle of income range)
Over $ 809670 but not over $ 836659    $ 163283, plus 36.00% of excess over $ 809670    20.43% effective overall tax rate(computed on tax on middle of income range)
Over $ 836659 but not over $ 863648    $ 173000, plus 37.00% of excess over $ 836659    20.94% effective overall tax rate(computed on tax on middle of income range)
Over $ 863648 but not over $ 890637    $ 182985, plus 38.00% of excess over $ 863648    21.45% effective overall tax rate(computed on tax on middle of income range)
Over $ 890637 but not over $ 917626    $ 193241, plus 39.00% of excess over $ 890637    21.96% effective overall tax rate(computed on tax on middle of income range)
Over $ 917626 but not over $ 944615    $ 203767, plus 40.00% of excess over $ 917626    22.46% effective overall tax rate(computed on tax on middle of income range)
Over $ 944615 but not over $ 971604    $ 214563, plus 41.00% of excess over $ 944615    22.97% effective overall tax rate(computed on tax on middle of income range)
Over $ 971604 but not over $ 998593    $ 225628, plus 42.00% of excess over $ 971604    23.48% effective overall tax rate(computed on tax on middle of income range)
Over $ 998593 but not over $1025582    $ 236963, plus 43.00% of excess over $ 998593    23.99% effective overall tax rate(computed on tax on middle of income range)
Over $1025582 but not over $1052571    $ 248569, plus 44.00% of excess over $1025582    24.49% effective overall tax rate(computed on tax on middle of income range)
Over $1052571 but not over $1079560    $ 260444, plus 45.00% of excess over $1052571    25.00% effective overall tax rate(computed on tax on middle of income range)
Over $1079560 but not over $1106549    $ 272589, plus 46.00% of excess over $1079560    25.51% effective overall tax rate(computed on tax on middle of income range)
Over $1106549 but not over $1133538    $ 285004, plus 47.00% of excess over $1106549    26.01% effective overall tax rate(computed on tax on middle of income range)
Over $1133538 but not over $1160527    $ 297689, plus 48.00% of excess over $1133538    26.52% effective overall tax rate(computed on tax on middle of income range)
Over $1160527 but not over $1187516    $ 310643, plus 49.00% of excess over $1160527    27.02% effective overall tax rate(computed on tax on middle of income range)
Over $1187516 but not over $1214505    $ 323868, plus 50.00% of excess over $1187516    27.53% effective overall tax rate(computed on tax on middle of income range)
Over $1214505 but not over $1241494    $ 337363, plus 51.00% of excess over $1214505    28.03% effective overall tax rate(computed on tax on middle of income range)
Over $1241494 but not over $1268483    $ 351127, plus 52.00% of excess over $1241494    28.54% effective overall tax rate(computed on tax on middle of income range)
Over $1268483 but not over $1295472    $ 365161, plus 53.00% of excess over $1268483    29.04% effective overall tax rate(computed on tax on middle of income range)
Over $1295472 but not over $1322461    $ 379465, plus 54.00% of excess over $1295472    29.55% effective overall tax rate(computed on tax on middle of income range)
Over $1322461 but not over $1349450    $ 394039, plus 55.00% of excess over $1322461    30.05% effective overall tax rate(computed on tax on middle of income range)
Over $1349450 but not over $2024175    $ 408883, plus 56.00% of excess over $1349450    35.44% effective overall tax rate(computed on tax on middle of income range)
Over $2024175 but not over $2698901    $ 786730, plus 57.00% of excess over $2024175    41.46% effective overall tax rate(computed on tax on middle of income range)
Over $2698901 ........................ $1171323, plus 58.00% of excess over $2698901    43.40% <=> 58.00% effective overall tax rate as income goes to infinity
                                                                              1923     1954                                               using exact decimal values of taxes (not integers)
                                                                              ____     ____
taxable income in 2013 dollars $     10000     tax due in  2013 dollars $      400     2000     percentage of taxable income=  4.00%    for tax year 1923  percentage of 1954 taxes  20.00%
taxable income in 2013 dollars $     20000     tax due in  2013 dollars $      800     4057     percentage of taxable income=  4.00%    for tax year 1923  percentage of 1954 taxes  19.72%
taxable income in 2013 dollars $     30000     tax due in  2013 dollars $     1200     6257     percentage of taxable income=  4.00%    for tax year 1923  percentage of 1954 taxes  19.18%
taxable income in 2013 dollars $     40000     tax due in  2013 dollars $     1600     8684     percentage of taxable income=  4.00%    for tax year 1923  percentage of 1954 taxes  18.42%
taxable income in 2013 dollars $     50000     tax due in  2013 dollars $     2000    11284     percentage of taxable income=  4.00%    for tax year 1923  percentage of 1954 taxes  17.72%
taxable income in 2013 dollars $     60000     tax due in  2013 dollars $     2641    14226     percentage of taxable income=  4.40%    for tax year 1923  percentage of 1954 taxes  18.56%
taxable income in 2013 dollars $     70000     tax due in  2013 dollars $     3441    17280     percentage of taxable income=  4.92%    for tax year 1923  percentage of 1954 taxes  19.91%
taxable income in 2013 dollars $     80000     tax due in  2013 dollars $     4241    20680     percentage of taxable income=  5.30%    for tax year 1923  percentage of 1954 taxes  20.51%
taxable income in 2013 dollars $     90000     tax due in  2013 dollars $     5131    24249     percentage of taxable income=  5.70%    for tax year 1923  percentage of 1954 taxes  21.16%
taxable income in 2013 dollars $    100000     tax due in  2013 dollars $     6031    28049     percentage of taxable income=  6.03%    for tax year 1923  percentage of 1954 taxes  21.50%
taxable income in 2013 dollars $    150000     tax due in  2013 dollars $    10682    50981     percentage of taxable income=  7.12%    for tax year 1923  percentage of 1954 taxes  20.95%
taxable income in 2013 dollars $    200000     tax due in  2013 dollars $    16173    78540     percentage of taxable income=  8.09%    for tax year 1923  percentage of 1954 taxes  20.59%
taxable income in 2013 dollars $    250000     tax due in  2013 dollars $    22585   108849     percentage of taxable income=  9.03%    for tax year 1923  percentage of 1954 taxes  20.75%
taxable income in 2013 dollars $    300000     tax due in  2013 dollars $    30218   140614     percentage of taxable income= 10.07%    for tax year 1923  percentage of 1954 taxes  21.49%
taxable income in 2013 dollars $    350000     tax due in  2013 dollars $    38980   174075     percentage of taxable income= 11.14%    for tax year 1923  percentage of 1954 taxes  22.39%
taxable income in 2013 dollars $    400000     tax due in  2013 dollars $    48693   209251     percentage of taxable income= 12.17%    for tax year 1923  percentage of 1954 taxes  23.27%
taxable income in 2013 dollars $    450000     tax due in  2013 dollars $    59508   245884     percentage of taxable income= 13.22%    for tax year 1923  percentage of 1954 taxes  24.20%
taxable income in 2013 dollars $    500000     tax due in  2013 dollars $    71150   283384     percentage of taxable income= 14.23%    for tax year 1923  percentage of 1954 taxes  25.11%
taxable income in 2013 dollars $    600000     tax due in  2013 dollars $    97019   360943     percentage of taxable income= 16.17%    for tax year 1923  percentage of 1954 taxes  26.88%
taxable income in 2013 dollars $    700000     tax due in  2013 dollars $   126587   442341     percentage of taxable income= 18.08%    for tax year 1923  percentage of 1954 taxes  28.62%
taxable income in 2013 dollars $    800000     tax due in  2013 dollars $   159899   527179     percentage of taxable income= 19.99%    for tax year 1923  percentage of 1954 taxes  30.33%
taxable income in 2013 dollars $    900000     tax due in  2013 dollars $   196893   615023     percentage of taxable income= 21.88%    for tax year 1923  percentage of 1954 taxes  32.01%
taxable income in 2013 dollars $   1000000     tax due in  2013 dollars $   237568   704023     percentage of taxable income= 23.76%    for tax year 1923  percentage of 1954 taxes  33.74%

1924 tax rate schedule with ORIGINAL dollar figures(for SINGLE taxpayer)
Historical data for the marginal rates was obtained at the Tax Foundation website at [U.S. Federal Individual Income Tax Rates History, 1913-2011 (Nominal and Inflation-Adjusted Brackets)]
Computation of the actual taxes due and the effective overall tax rate at each level were done by Jeff Sagarin.

Not over $   4000 ...................................  2.00% of the taxable income       2.00% effective overall tax rate
Over $   4000 but not over $   8000    $     80, plus  4.00% of excess over $   4000     2.67% effective overall tax rate(computed on tax on middle of income range)
Over $   8000 but not over $  10000    $    240, plus  6.00% of excess over $   8000     3.33% effective overall tax rate(computed on tax on middle of income range)
Over $  10000 but not over $  14000    $    360, plus  7.00% of excess over $  10000     4.17% effective overall tax rate(computed on tax on middle of income range)
Over $  14000 but not over $  16000    $    640, plus  8.00% of excess over $  14000     4.80% effective overall tax rate(computed on tax on middle of income range)
Over $  16000 but not over $  18000    $    800, plus  9.00% of excess over $  16000     5.24% effective overall tax rate(computed on tax on middle of income range)
Over $  18000 but not over $  20000    $    980, plus 10.00% of excess over $  18000     5.68% effective overall tax rate(computed on tax on middle of income range)
Over $  20000 but not over $  22000    $   1180, plus 11.00% of excess over $  20000     6.14% effective overall tax rate(computed on tax on middle of income range)
Over $  22000 but not over $  24000    $   1400, plus 12.00% of excess over $  22000     6.61% effective overall tax rate(computed on tax on middle of income range)
Over $  24000 but not over $  26000    $   1640, plus 13.00% of excess over $  24000     7.08% effective overall tax rate(computed on tax on middle of income range)
Over $  26000 but not over $  28000    $   1900, plus 14.00% of excess over $  26000     7.56% effective overall tax rate(computed on tax on middle of income range)
Over $  28000 but not over $  30000    $   2180, plus 15.00% of excess over $  28000     8.03% effective overall tax rate(computed on tax on middle of income range)
Over $  30000 but not over $  34000    $   2480, plus 16.00% of excess over $  30000     8.75% effective overall tax rate(computed on tax on middle of income range)
Over $  34000 but not over $  36000    $   3120, plus 17.00% of excess over $  34000     9.40% effective overall tax rate(computed on tax on middle of income range)
Over $  36000 but not over $  38000    $   3460, plus 18.00% of excess over $  36000     9.84% effective overall tax rate(computed on tax on middle of income range)
Over $  38000 but not over $  42000    $   3820, plus 19.00% of excess over $  38000    10.50% effective overall tax rate(computed on tax on middle of income range)
Over $  42000 but not over $  44000    $   4580, plus 20.00% of excess over $  42000    11.12% effective overall tax rate(computed on tax on middle of income range)
Over $  44000 but not over $  46000    $   4980, plus 21.00% of excess over $  44000    11.53% effective overall tax rate(computed on tax on middle of income range)
Over $  46000 but not over $  48000    $   5400, plus 22.00% of excess over $  46000    11.96% effective overall tax rate(computed on tax on middle of income range)
Over $  48000 but not over $  50000    $   5840, plus 23.00% of excess over $  48000    12.39% effective overall tax rate(computed on tax on middle of income range)
Over $  50000 but not over $  52000    $   6300, plus 24.00% of excess over $  50000    12.82% effective overall tax rate(computed on tax on middle of income range)
Over $  52000 but not over $  56000    $   6780, plus 25.00% of excess over $  52000    13.48% effective overall tax rate(computed on tax on middle of income range)
Over $  56000 but not over $  58000    $   7780, plus 26.00% of excess over $  56000    14.11% effective overall tax rate(computed on tax on middle of income range)
Over $  58000 but not over $  62000    $   8300, plus 27.00% of excess over $  58000    14.73% effective overall tax rate(computed on tax on middle of income range)
Over $  62000 but not over $  64000    $   9380, plus 28.00% of excess over $  62000    15.33% effective overall tax rate(computed on tax on middle of income range)
Over $  64000 but not over $  66000    $   9940, plus 29.00% of excess over $  64000    15.74% effective overall tax rate(computed on tax on middle of income range)
Over $  66000 but not over $  68000    $  10520, plus 30.00% of excess over $  66000    16.15% effective overall tax rate(computed on tax on middle of income range)
Over $  68000 but not over $  70000    $  11120, plus 31.00% of excess over $  68000    16.57% effective overall tax rate(computed on tax on middle of income range)
Over $  70000 but not over $  74000    $  11740, plus 32.00% of excess over $  70000    17.19% effective overall tax rate(computed on tax on middle of income range)
Over $  74000 but not over $  76000    $  13020, plus 33.00% of excess over $  74000    17.80% effective overall tax rate(computed on tax on middle of income range)
Over $  76000 but not over $  80000    $  13680, plus 34.00% of excess over $  76000    18.41% effective overall tax rate(computed on tax on middle of income range)
Over $  80000 but not over $  82000    $  15040, plus 35.00% of excess over $  80000    19.00% effective overall tax rate(computed on tax on middle of income range)
Over $  82000 but not over $  84000    $  15740, plus 36.00% of excess over $  82000    19.40% effective overall tax rate(computed on tax on middle of income range)
Over $  84000 but not over $  88000    $  16460, plus 37.00% of excess over $  84000    20.00% effective overall tax rate(computed on tax on middle of income range)
Over $  88000 but not over $  90000    $  17940, plus 38.00% of excess over $  88000    20.58% effective overall tax rate(computed on tax on middle of income range)
Over $  90000 but not over $  92000    $  18700, plus 39.00% of excess over $  90000    20.98% effective overall tax rate(computed on tax on middle of income range)
Over $  92000 but not over $  94000    $  19480, plus 40.00% of excess over $  92000    21.38% effective overall tax rate(computed on tax on middle of income range)
Over $  94000 but not over $  96000    $  20280, plus 41.00% of excess over $  94000    21.78% effective overall tax rate(computed on tax on middle of income range)
Over $  96000 but not over $ 100000    $  21100, plus 42.00% of excess over $  96000    22.39% effective overall tax rate(computed on tax on middle of income range)
Over $ 100000 but not over $ 200000    $  22780, plus 43.00% of excess over $ 100000    29.52% effective overall tax rate(computed on tax on middle of income range)
Over $ 200000 but not over $ 300000    $  65780, plus 44.00% of excess over $ 200000    35.11% effective overall tax rate(computed on tax on middle of income range)
Over $ 300000 but not over $ 500000    $ 109780, plus 45.00% of excess over $ 300000    38.70% effective overall tax rate(computed on tax on middle of income range)
Over $ 500000 ........................ $ 199780, plus 46.00% of excess over $ 500000    39.96% <=> 46.00% effective overall tax rate as income goes to infinity
1924 tax rate schedule with figures INFLATION-ADJUSTED to 2013 dollars(for SINGLE taxpayer) ... the multiplier is 13.494502924 based on the average of the last 12 monthly figures through and including April 2013 released in mid-May 2013)
Inflation multiplier was determined from Bureau of Labor Statistics at [CPI Inflation Calculator | Historical Consumer Price Index]
Computation of the actual taxes due and the effective overall tax rate at each level were done by Jeff Sagarin.

Not over $  53978 ...................................  2.00% of the taxable income       2.00% effective overall tax rate
Over $  53978 but not over $ 107956    $   1080, plus  4.00% of excess over $  53978     2.67% effective overall tax rate(computed on tax on middle of income range)
Over $ 107956 but not over $ 134945    $   3239, plus  6.00% of excess over $ 107956     3.33% effective overall tax rate(computed on tax on middle of income range)
Over $ 134945 but not over $ 188923    $   4858, plus  7.00% of excess over $ 134945     4.17% effective overall tax rate(computed on tax on middle of income range)
Over $ 188923 but not over $ 215912    $   8636, plus  8.00% of excess over $ 188923     4.80% effective overall tax rate(computed on tax on middle of income range)
Over $ 215912 but not over $ 242901    $  10796, plus  9.00% of excess over $ 215912     5.24% effective overall tax rate(computed on tax on middle of income range)
Over $ 242901 but not over $ 269890    $  13225, plus 10.00% of excess over $ 242901     5.68% effective overall tax rate(computed on tax on middle of income range)
Over $ 269890 but not over $ 296879    $  15924, plus 11.00% of excess over $ 269890     6.14% effective overall tax rate(computed on tax on middle of income range)
Over $ 296879 but not over $ 323868    $  18892, plus 12.00% of excess over $ 296879     6.61% effective overall tax rate(computed on tax on middle of income range)
Over $ 323868 but not over $ 350857    $  22131, plus 13.00% of excess over $ 323868     7.08% effective overall tax rate(computed on tax on middle of income range)
Over $ 350857 but not over $ 377846    $  25640, plus 14.00% of excess over $ 350857     7.56% effective overall tax rate(computed on tax on middle of income range)
Over $ 377846 but not over $ 404835    $  29418, plus 15.00% of excess over $ 377846     8.03% effective overall tax rate(computed on tax on middle of income range)
Over $ 404835 but not over $ 458813    $  33466, plus 16.00% of excess over $ 404835     8.75% effective overall tax rate(computed on tax on middle of income range)
Over $ 458813 but not over $ 485802    $  42103, plus 17.00% of excess over $ 458813     9.40% effective overall tax rate(computed on tax on middle of income range)
Over $ 485802 but not over $ 512791    $  46691, plus 18.00% of excess over $ 485802     9.84% effective overall tax rate(computed on tax on middle of income range)
Over $ 512791 but not over $ 566769    $  51549, plus 19.00% of excess over $ 512791    10.50% effective overall tax rate(computed on tax on middle of income range)
Over $ 566769 but not over $ 593758    $  61805, plus 20.00% of excess over $ 566769    11.12% effective overall tax rate(computed on tax on middle of income range)
Over $ 593758 but not over $ 620747    $  67203, plus 21.00% of excess over $ 593758    11.53% effective overall tax rate(computed on tax on middle of income range)
Over $ 620747 but not over $ 647736    $  72870, plus 22.00% of excess over $ 620747    11.96% effective overall tax rate(computed on tax on middle of income range)
Over $ 647736 but not over $ 674725    $  78808, plus 23.00% of excess over $ 647736    12.39% effective overall tax rate(computed on tax on middle of income range)
Over $ 674725 but not over $ 701714    $  85015, plus 24.00% of excess over $ 674725    12.82% effective overall tax rate(computed on tax on middle of income range)
Over $ 701714 but not over $ 755692    $  91493, plus 25.00% of excess over $ 701714    13.48% effective overall tax rate(computed on tax on middle of income range)
Over $ 755692 but not over $ 782681    $ 104987, plus 26.00% of excess over $ 755692    14.11% effective overall tax rate(computed on tax on middle of income range)
Over $ 782681 but not over $ 836659    $ 112004, plus 27.00% of excess over $ 782681    14.73% effective overall tax rate(computed on tax on middle of income range)
Over $ 836659 but not over $ 863648    $ 126578, plus 28.00% of excess over $ 836659    15.33% effective overall tax rate(computed on tax on middle of income range)
Over $ 863648 but not over $ 890637    $ 134135, plus 29.00% of excess over $ 863648    15.74% effective overall tax rate(computed on tax on middle of income range)
Over $ 890637 but not over $ 917626    $ 141962, plus 30.00% of excess over $ 890637    16.15% effective overall tax rate(computed on tax on middle of income range)
Over $ 917626 but not over $ 944615    $ 150059, plus 31.00% of excess over $ 917626    16.57% effective overall tax rate(computed on tax on middle of income range)
Over $ 944615 but not over $ 998593    $ 158425, plus 32.00% of excess over $ 944615    17.19% effective overall tax rate(computed on tax on middle of income range)
Over $ 998593 but not over $1025582    $ 175698, plus 33.00% of excess over $ 998593    17.80% effective overall tax rate(computed on tax on middle of income range)
Over $1025582 but not over $1079560    $ 184605, plus 34.00% of excess over $1025582    18.41% effective overall tax rate(computed on tax on middle of income range)
Over $1079560 but not over $1106549    $ 202957, plus 35.00% of excess over $1079560    19.00% effective overall tax rate(computed on tax on middle of income range)
Over $1106549 but not over $1133538    $ 212403, plus 36.00% of excess over $1106549    19.40% effective overall tax rate(computed on tax on middle of income range)
Over $1133538 but not over $1187516    $ 222120, plus 37.00% of excess over $1133538    20.00% effective overall tax rate(computed on tax on middle of income range)
Over $1187516 but not over $1214505    $ 242091, plus 38.00% of excess over $1187516    20.58% effective overall tax rate(computed on tax on middle of income range)
Over $1214505 but not over $1241494    $ 252347, plus 39.00% of excess over $1214505    20.98% effective overall tax rate(computed on tax on middle of income range)
Over $1241494 but not over $1268483    $ 262873, plus 40.00% of excess over $1241494    21.38% effective overall tax rate(computed on tax on middle of income range)
Over $1268483 but not over $1295472    $ 273669, plus 41.00% of excess over $1268483    21.78% effective overall tax rate(computed on tax on middle of income range)
Over $1295472 but not over $1349450    $ 284734, plus 42.00% of excess over $1295472    22.39% effective overall tax rate(computed on tax on middle of income range)
Over $1349450 but not over $2698901    $ 307405, plus 43.00% of excess over $1349450    29.52% effective overall tax rate(computed on tax on middle of income range)
Over $2698901 but not over $4048351    $ 887668, plus 44.00% of excess over $2698901    35.11% effective overall tax rate(computed on tax on middle of income range)
Over $4048351 but not over $6747251    $1481427, plus 45.00% of excess over $4048351    38.70% effective overall tax rate(computed on tax on middle of income range)
Over $6747251 ........................ $2695932, plus 46.00% of excess over $6747251    39.96% <=> 46.00% effective overall tax rate as income goes to infinity
                                                                              1924     1954                                               using exact decimal values of taxes (not integers)
                                                                              ____     ____
taxable income in 2013 dollars $     10000     tax due in  2013 dollars $      200     2000     percentage of taxable income=  2.00%    for tax year 1924  percentage of 1954 taxes  10.00%
taxable income in 2013 dollars $     20000     tax due in  2013 dollars $      400     4057     percentage of taxable income=  2.00%    for tax year 1924  percentage of 1954 taxes   9.86%
taxable income in 2013 dollars $     30000     tax due in  2013 dollars $      600     6257     percentage of taxable income=  2.00%    for tax year 1924  percentage of 1954 taxes   9.59%
taxable income in 2013 dollars $     40000     tax due in  2013 dollars $      800     8684     percentage of taxable income=  2.00%    for tax year 1924  percentage of 1954 taxes   9.21%
taxable income in 2013 dollars $     50000     tax due in  2013 dollars $     1000    11284     percentage of taxable income=  2.00%    for tax year 1924  percentage of 1954 taxes   8.86%
taxable income in 2013 dollars $     60000     tax due in  2013 dollars $     1320    14226     percentage of taxable income=  2.20%    for tax year 1924  percentage of 1954 taxes   9.28%
taxable income in 2013 dollars $     70000     tax due in  2013 dollars $     1720    17280     percentage of taxable income=  2.46%    for tax year 1924  percentage of 1954 taxes   9.96%
taxable income in 2013 dollars $     80000     tax due in  2013 dollars $     2120    20680     percentage of taxable income=  2.65%    for tax year 1924  percentage of 1954 taxes  10.25%
taxable income in 2013 dollars $     90000     tax due in  2013 dollars $     2520    24249     percentage of taxable income=  2.80%    for tax year 1924  percentage of 1954 taxes  10.39%
taxable income in 2013 dollars $    100000     tax due in  2013 dollars $     2920    28049     percentage of taxable income=  2.92%    for tax year 1924  percentage of 1954 taxes  10.41%
taxable income in 2013 dollars $    150000     tax due in  2013 dollars $     5912    50981     percentage of taxable income=  3.94%    for tax year 1924  percentage of 1954 taxes  11.60%
taxable income in 2013 dollars $    200000     tax due in  2013 dollars $     9523    78540     percentage of taxable income=  4.76%    for tax year 1924  percentage of 1954 taxes  12.12%
taxable income in 2013 dollars $    250000     tax due in  2013 dollars $    13935   108849     percentage of taxable income=  5.57%    for tax year 1924  percentage of 1954 taxes  12.80%
taxable income in 2013 dollars $    300000     tax due in  2013 dollars $    19267   140614     percentage of taxable income=  6.42%    for tax year 1924  percentage of 1954 taxes  13.70%
taxable income in 2013 dollars $    350000     tax due in  2013 dollars $    25528   174075     percentage of taxable income=  7.29%    for tax year 1924  percentage of 1954 taxes  14.67%
taxable income in 2013 dollars $    400000     tax due in  2013 dollars $    32741   209251     percentage of taxable income=  8.19%    for tax year 1924  percentage of 1954 taxes  15.65%
taxable income in 2013 dollars $    450000     tax due in  2013 dollars $    40693   245884     percentage of taxable income=  9.04%    for tax year 1924  percentage of 1954 taxes  16.55%
taxable income in 2013 dollars $    500000     tax due in  2013 dollars $    49247   283384     percentage of taxable income=  9.85%    for tax year 1924  percentage of 1954 taxes  17.38%
taxable income in 2013 dollars $    600000     tax due in  2013 dollars $    68513   360943     percentage of taxable income= 11.42%    for tax year 1924  percentage of 1954 taxes  18.98%
taxable income in 2013 dollars $    700000     tax due in  2013 dollars $    91081   442341     percentage of taxable income= 13.01%    for tax year 1924  percentage of 1954 taxes  20.59%
taxable income in 2013 dollars $    800000     tax due in  2013 dollars $   116680   527179     percentage of taxable income= 14.59%    for tax year 1924  percentage of 1954 taxes  22.13%
taxable income in 2013 dollars $    900000     tax due in  2013 dollars $   144771   615023     percentage of taxable income= 16.09%    for tax year 1924  percentage of 1954 taxes  23.54%
taxable income in 2013 dollars $   1000000     tax due in  2013 dollars $   176163   704023     percentage of taxable income= 17.62%    for tax year 1924  percentage of 1954 taxes  25.02%

1925 tax rate schedule with ORIGINAL dollar figures(for SINGLE taxpayer)
Historical data for the marginal rates was obtained at the Tax Foundation website at [U.S. Federal Individual Income Tax Rates History, 1913-2011 (Nominal and Inflation-Adjusted Brackets)]
Computation of the actual taxes due and the effective overall tax rate at each level were done by Jeff Sagarin.

Not over $   4000 ...................................  1.50% of the taxable income       1.50% effective overall tax rate
Over $   4000 but not over $   8000    $     60, plus  3.00% of excess over $   4000     2.00% effective overall tax rate(computed on tax on middle of income range)
Over $   8000 but not over $  10000    $    180, plus  5.00% of excess over $   8000     2.56% effective overall tax rate(computed on tax on middle of income range)
Over $  10000 but not over $  14000    $    280, plus  6.00% of excess over $  10000     3.33% effective overall tax rate(computed on tax on middle of income range)
Over $  14000 but not over $  16000    $    520, plus  7.00% of excess over $  14000     3.93% effective overall tax rate(computed on tax on middle of income range)
Over $  16000 but not over $  18000    $    660, plus  8.00% of excess over $  16000     4.35% effective overall tax rate(computed on tax on middle of income range)
Over $  18000 but not over $  20000    $    820, plus  9.00% of excess over $  18000     4.79% effective overall tax rate(computed on tax on middle of income range)
Over $  20000 but not over $  22000    $   1000, plus 10.00% of excess over $  20000     5.24% effective overall tax rate(computed on tax on middle of income range)
Over $  22000 but not over $  24000    $   1200, plus 11.00% of excess over $  22000     5.70% effective overall tax rate(computed on tax on middle of income range)
Over $  24000 but not over $  28000    $   1420, plus 12.00% of excess over $  24000     6.38% effective overall tax rate(computed on tax on middle of income range)
Over $  28000 but not over $  32000    $   1900, plus 13.00% of excess over $  28000     7.20% effective overall tax rate(computed on tax on middle of income range)
Over $  32000 but not over $  36000    $   2420, plus 14.00% of excess over $  32000     7.94% effective overall tax rate(computed on tax on middle of income range)
Over $  36000 but not over $  40000    $   2980, plus 15.00% of excess over $  36000     8.63% effective overall tax rate(computed on tax on middle of income range)
Over $  40000 but not over $  44000    $   3580, plus 16.00% of excess over $  40000     9.29% effective overall tax rate(computed on tax on middle of income range)
Over $  44000 but not over $  48000    $   4220, plus 17.00% of excess over $  44000     9.91% effective overall tax rate(computed on tax on middle of income range)
Over $  48000 but not over $  52000    $   4900, plus 18.00% of excess over $  48000    10.52% effective overall tax rate(computed on tax on middle of income range)
Over $  52000 but not over $  56000    $   5620, plus 19.00% of excess over $  52000    11.11% effective overall tax rate(computed on tax on middle of income range)
Over $  56000 but not over $  60000    $   6380, plus 20.00% of excess over $  56000    11.69% effective overall tax rate(computed on tax on middle of income range)
Over $  60000 but not over $  64000    $   7180, plus 21.00% of excess over $  60000    12.26% effective overall tax rate(computed on tax on middle of income range)
Over $  64000 but not over $  70000    $   8020, plus 22.00% of excess over $  64000    12.96% effective overall tax rate(computed on tax on middle of income range)
Over $  70000 but not over $  80000    $   9340, plus 23.00% of excess over $  70000    13.99% effective overall tax rate(computed on tax on middle of income range)
Over $  80000 but not over $ 100000    $  11640, plus 24.00% of excess over $  80000    15.60% effective overall tax rate(computed on tax on middle of income range)
Over $ 100000 ........................ $  16440, plus 25.00% of excess over $ 100000    16.44% <=> 25.00% effective overall tax rate as income goes to infinity
1925 tax rate schedule with figures INFLATION-ADJUSTED to 2013 dollars(for SINGLE taxpayer) ... the multiplier is 13.186057142 based on the average of the last 12 monthly figures through and including April 2013 released in mid-May 2013)
Inflation multiplier was determined from Bureau of Labor Statistics at [CPI Inflation Calculator | Historical Consumer Price Index]
Computation of the actual taxes due and the effective overall tax rate at each level were done by Jeff Sagarin.

Not over $  52744 ...................................  1.50% of the taxable income       1.50% effective overall tax rate
Over $  52744 but not over $ 105488    $    791, plus  3.00% of excess over $  52744     2.00% effective overall tax rate(computed on tax on middle of income range)
Over $ 105488 but not over $ 131861    $   2373, plus  5.00% of excess over $ 105488     2.56% effective overall tax rate(computed on tax on middle of income range)
Over $ 131861 but not over $ 184605    $   3692, plus  6.00% of excess over $ 131861     3.33% effective overall tax rate(computed on tax on middle of income range)
Over $ 184605 but not over $ 210977    $   6857, plus  7.00% of excess over $ 184605     3.93% effective overall tax rate(computed on tax on middle of income range)
Over $ 210977 but not over $ 237349    $   8703, plus  8.00% of excess over $ 210977     4.35% effective overall tax rate(computed on tax on middle of income range)
Over $ 237349 but not over $ 263721    $  10813, plus  9.00% of excess over $ 237349     4.79% effective overall tax rate(computed on tax on middle of income range)
Over $ 263721 but not over $ 290093    $  13186, plus 10.00% of excess over $ 263721     5.24% effective overall tax rate(computed on tax on middle of income range)
Over $ 290093 but not over $ 316465    $  15823, plus 11.00% of excess over $ 290093     5.70% effective overall tax rate(computed on tax on middle of income range)
Over $ 316465 but not over $ 369210    $  18724, plus 12.00% of excess over $ 316465     6.38% effective overall tax rate(computed on tax on middle of income range)
Over $ 369210 but not over $ 421954    $  25054, plus 13.00% of excess over $ 369210     7.20% effective overall tax rate(computed on tax on middle of income range)
Over $ 421954 but not over $ 474698    $  31910, plus 14.00% of excess over $ 421954     7.94% effective overall tax rate(computed on tax on middle of income range)
Over $ 474698 but not over $ 527442    $  39294, plus 15.00% of excess over $ 474698     8.63% effective overall tax rate(computed on tax on middle of income range)
Over $ 527442 but not over $ 580187    $  47206, plus 16.00% of excess over $ 527442     9.29% effective overall tax rate(computed on tax on middle of income range)
Over $ 580187 but not over $ 632931    $  55645, plus 17.00% of excess over $ 580187     9.91% effective overall tax rate(computed on tax on middle of income range)
Over $ 632931 but not over $ 685675    $  64612, plus 18.00% of excess over $ 632931    10.52% effective overall tax rate(computed on tax on middle of income range)
Over $ 685675 but not over $ 738419    $  74106, plus 19.00% of excess over $ 685675    11.11% effective overall tax rate(computed on tax on middle of income range)
Over $ 738419 but not over $ 791163    $  84127, plus 20.00% of excess over $ 738419    11.69% effective overall tax rate(computed on tax on middle of income range)
Over $ 791163 but not over $ 843908    $  94676, plus 21.00% of excess over $ 791163    12.26% effective overall tax rate(computed on tax on middle of income range)
Over $ 843908 but not over $ 923024    $ 105752, plus 22.00% of excess over $ 843908    12.96% effective overall tax rate(computed on tax on middle of income range)
Over $ 923024 but not over $1054885    $ 123158, plus 23.00% of excess over $ 923024    13.99% effective overall tax rate(computed on tax on middle of income range)
Over $1054885 but not over $1318606    $ 153486, plus 24.00% of excess over $1054885    15.60% effective overall tax rate(computed on tax on middle of income range)
Over $1318606 ........................ $ 216779, plus 25.00% of excess over $1318606    16.44% <=> 25.00% effective overall tax rate as income goes to infinity
                                                                              1925     1954                                               using exact decimal values of taxes (not integers)
                                                                              ____     ____
taxable income in 2013 dollars $     10000     tax due in  2013 dollars $      150     2000     percentage of taxable income=  1.50%    for tax year 1925  percentage of 1954 taxes   7.50%
taxable income in 2013 dollars $     20000     tax due in  2013 dollars $      300     4057     percentage of taxable income=  1.50%    for tax year 1925  percentage of 1954 taxes   7.39%
taxable income in 2013 dollars $     30000     tax due in  2013 dollars $      450     6257     percentage of taxable income=  1.50%    for tax year 1925  percentage of 1954 taxes   7.19%
taxable income in 2013 dollars $     40000     tax due in  2013 dollars $      600     8684     percentage of taxable income=  1.50%    for tax year 1925  percentage of 1954 taxes   6.91%
taxable income in 2013 dollars $     50000     tax due in  2013 dollars $      750    11284     percentage of taxable income=  1.50%    for tax year 1925  percentage of 1954 taxes   6.65%
taxable income in 2013 dollars $     60000     tax due in  2013 dollars $     1009    14226     percentage of taxable income=  1.68%    for tax year 1925  percentage of 1954 taxes   7.09%
taxable income in 2013 dollars $     70000     tax due in  2013 dollars $     1309    17280     percentage of taxable income=  1.87%    for tax year 1925  percentage of 1954 taxes   7.57%
taxable income in 2013 dollars $     80000     tax due in  2013 dollars $     1609    20680     percentage of taxable income=  2.01%    for tax year 1925  percentage of 1954 taxes   7.78%
taxable income in 2013 dollars $     90000     tax due in  2013 dollars $     1909    24249     percentage of taxable income=  2.12%    for tax year 1925  percentage of 1954 taxes   7.87%
taxable income in 2013 dollars $    100000     tax due in  2013 dollars $     2209    28049     percentage of taxable income=  2.21%    for tax year 1925  percentage of 1954 taxes   7.87%
taxable income in 2013 dollars $    150000     tax due in  2013 dollars $     4780    50981     percentage of taxable income=  3.19%    for tax year 1925  percentage of 1954 taxes   9.38%
taxable income in 2013 dollars $    200000     tax due in  2013 dollars $     7934    78540     percentage of taxable income=  3.97%    for tax year 1925  percentage of 1954 taxes  10.10%
taxable income in 2013 dollars $    250000     tax due in  2013 dollars $    11951   108849     percentage of taxable income=  4.78%    for tax year 1925  percentage of 1954 taxes  10.98%
taxable income in 2013 dollars $    300000     tax due in  2013 dollars $    16913   140614     percentage of taxable income=  5.64%    for tax year 1925  percentage of 1954 taxes  12.03%
taxable income in 2013 dollars $    350000     tax due in  2013 dollars $    22748   174075     percentage of taxable income=  6.50%    for tax year 1925  percentage of 1954 taxes  13.07%
taxable income in 2013 dollars $    400000     tax due in  2013 dollars $    29056   209251     percentage of taxable income=  7.26%    for tax year 1925  percentage of 1954 taxes  13.89%
taxable income in 2013 dollars $    450000     tax due in  2013 dollars $    35837   245884     percentage of taxable income=  7.96%    for tax year 1925  percentage of 1954 taxes  14.57%
taxable income in 2013 dollars $    500000     tax due in  2013 dollars $    43090   283384     percentage of taxable income=  8.62%    for tax year 1925  percentage of 1954 taxes  15.21%
taxable income in 2013 dollars $    600000     tax due in  2013 dollars $    59013   360943     percentage of taxable income=  9.84%    for tax year 1925  percentage of 1954 taxes  16.35%
taxable income in 2013 dollars $    700000     tax due in  2013 dollars $    76827   442341     percentage of taxable income= 10.98%    for tax year 1925  percentage of 1954 taxes  17.37%
taxable income in 2013 dollars $    800000     tax due in  2013 dollars $    96532   527179     percentage of taxable income= 12.07%    for tax year 1925  percentage of 1954 taxes  18.31%
taxable income in 2013 dollars $    900000     tax due in  2013 dollars $   118092   615023     percentage of taxable income= 13.12%    for tax year 1925  percentage of 1954 taxes  19.20%
taxable income in 2013 dollars $   1000000     tax due in  2013 dollars $   140862   704023     percentage of taxable income= 14.09%    for tax year 1925  percentage of 1954 taxes  20.01%

1926 tax rate schedule with ORIGINAL dollar figures(for SINGLE taxpayer)
Historical data for the marginal rates was obtained at the Tax Foundation website at [U.S. Federal Individual Income Tax Rates History, 1913-2011 (Nominal and Inflation-Adjusted Brackets)]
Computation of the actual taxes due and the effective overall tax rate at each level were done by Jeff Sagarin.

Not over $   4000 ...................................  1.50% of the taxable income       1.50% effective overall tax rate
Over $   4000 but not over $   8000    $     60, plus  3.00% of excess over $   4000     2.00% effective overall tax rate(computed on tax on middle of income range)
Over $   8000 but not over $  10000    $    180, plus  5.00% of excess over $   8000     2.56% effective overall tax rate(computed on tax on middle of income range)
Over $  10000 but not over $  14000    $    280, plus  6.00% of excess over $  10000     3.33% effective overall tax rate(computed on tax on middle of income range)
Over $  14000 but not over $  16000    $    520, plus  7.00% of excess over $  14000     3.93% effective overall tax rate(computed on tax on middle of income range)
Over $  16000 but not over $  18000    $    660, plus  8.00% of excess over $  16000     4.35% effective overall tax rate(computed on tax on middle of income range)
Over $  18000 but not over $  20000    $    820, plus  9.00% of excess over $  18000     4.79% effective overall tax rate(computed on tax on middle of income range)
Over $  20000 but not over $  22000    $   1000, plus 10.00% of excess over $  20000     5.24% effective overall tax rate(computed on tax on middle of income range)
Over $  22000 but not over $  24000    $   1200, plus 11.00% of excess over $  22000     5.70% effective overall tax rate(computed on tax on middle of income range)
Over $  24000 but not over $  28000    $   1420, plus 12.00% of excess over $  24000     6.38% effective overall tax rate(computed on tax on middle of income range)
Over $  28000 but not over $  32000    $   1900, plus 13.00% of excess over $  28000     7.20% effective overall tax rate(computed on tax on middle of income range)
Over $  32000 but not over $  36000    $   2420, plus 14.00% of excess over $  32000     7.94% effective overall tax rate(computed on tax on middle of income range)
Over $  36000 but not over $  40000    $   2980, plus 15.00% of excess over $  36000     8.63% effective overall tax rate(computed on tax on middle of income range)
Over $  40000 but not over $  44000    $   3580, plus 16.00% of excess over $  40000     9.29% effective overall tax rate(computed on tax on middle of income range)
Over $  44000 but not over $  48000    $   4220, plus 17.00% of excess over $  44000     9.91% effective overall tax rate(computed on tax on middle of income range)
Over $  48000 but not over $  52000    $   4900, plus 18.00% of excess over $  48000    10.52% effective overall tax rate(computed on tax on middle of income range)
Over $  52000 but not over $  56000    $   5620, plus 19.00% of excess over $  52000    11.11% effective overall tax rate(computed on tax on middle of income range)
Over $  56000 but not over $  60000    $   6380, plus 20.00% of excess over $  56000    11.69% effective overall tax rate(computed on tax on middle of income range)
Over $  60000 but not over $  64000    $   7180, plus 21.00% of excess over $  60000    12.26% effective overall tax rate(computed on tax on middle of income range)
Over $  64000 but not over $  70000    $   8020, plus 22.00% of excess over $  64000    12.96% effective overall tax rate(computed on tax on middle of income range)
Over $  70000 but not over $  80000    $   9340, plus 23.00% of excess over $  70000    13.99% effective overall tax rate(computed on tax on middle of income range)
Over $  80000 but not over $ 100000    $  11640, plus 24.00% of excess over $  80000    15.60% effective overall tax rate(computed on tax on middle of income range)
Over $ 100000 ........................ $  16440, plus 25.00% of excess over $ 100000    16.44% <=> 25.00% effective overall tax rate as income goes to infinity
1926 tax rate schedule with figures INFLATION-ADJUSTED to 2013 dollars(for SINGLE taxpayer) ... the multiplier is 13.037062147 based on the average of the last 12 monthly figures through and including April 2013 released in mid-May 2013)
Inflation multiplier was determined from Bureau of Labor Statistics at [CPI Inflation Calculator | Historical Consumer Price Index]
Computation of the actual taxes due and the effective overall tax rate at each level were done by Jeff Sagarin.

Not over $  52148 ...................................  1.50% of the taxable income       1.50% effective overall tax rate
Over $  52148 but not over $ 104296    $    782, plus  3.00% of excess over $  52148     2.00% effective overall tax rate(computed on tax on middle of income range)
Over $ 104296 but not over $ 130371    $   2347, plus  5.00% of excess over $ 104296     2.56% effective overall tax rate(computed on tax on middle of income range)
Over $ 130371 but not over $ 182519    $   3650, plus  6.00% of excess over $ 130371     3.33% effective overall tax rate(computed on tax on middle of income range)
Over $ 182519 but not over $ 208593    $   6779, plus  7.00% of excess over $ 182519     3.93% effective overall tax rate(computed on tax on middle of income range)
Over $ 208593 but not over $ 234667    $   8604, plus  8.00% of excess over $ 208593     4.35% effective overall tax rate(computed on tax on middle of income range)
Over $ 234667 but not over $ 260741    $  10690, plus  9.00% of excess over $ 234667     4.79% effective overall tax rate(computed on tax on middle of income range)
Over $ 260741 but not over $ 286815    $  13037, plus 10.00% of excess over $ 260741     5.24% effective overall tax rate(computed on tax on middle of income range)
Over $ 286815 but not over $ 312889    $  15644, plus 11.00% of excess over $ 286815     5.70% effective overall tax rate(computed on tax on middle of income range)
Over $ 312889 but not over $ 365038    $  18513, plus 12.00% of excess over $ 312889     6.38% effective overall tax rate(computed on tax on middle of income range)
Over $ 365038 but not over $ 417186    $  24770, plus 13.00% of excess over $ 365038     7.20% effective overall tax rate(computed on tax on middle of income range)
Over $ 417186 but not over $ 469334    $  31550, plus 14.00% of excess over $ 417186     7.94% effective overall tax rate(computed on tax on middle of income range)
Over $ 469334 but not over $ 521482    $  38850, plus 15.00% of excess over $ 469334     8.63% effective overall tax rate(computed on tax on middle of income range)
Over $ 521482 but not over $ 573631    $  46673, plus 16.00% of excess over $ 521482     9.29% effective overall tax rate(computed on tax on middle of income range)
Over $ 573631 but not over $ 625779    $  55016, plus 17.00% of excess over $ 573631     9.91% effective overall tax rate(computed on tax on middle of income range)
Over $ 625779 but not over $ 677927    $  63882, plus 18.00% of excess over $ 625779    10.52% effective overall tax rate(computed on tax on middle of income range)
Over $ 677927 but not over $ 730075    $  73268, plus 19.00% of excess over $ 677927    11.11% effective overall tax rate(computed on tax on middle of income range)
Over $ 730075 but not over $ 782224    $  83176, plus 20.00% of excess over $ 730075    11.69% effective overall tax rate(computed on tax on middle of income range)
Over $ 782224 but not over $ 834372    $  93606, plus 21.00% of excess over $ 782224    12.26% effective overall tax rate(computed on tax on middle of income range)
Over $ 834372 but not over $ 912594    $ 104557, plus 22.00% of excess over $ 834372    12.96% effective overall tax rate(computed on tax on middle of income range)
Over $ 912594 but not over $1042965    $ 121766, plus 23.00% of excess over $ 912594    13.99% effective overall tax rate(computed on tax on middle of income range)
Over $1042965 but not over $1303706    $ 151751, plus 24.00% of excess over $1042965    15.60% effective overall tax rate(computed on tax on middle of income range)
Over $1303706 ........................ $ 214329, plus 25.00% of excess over $1303706    16.44% <=> 25.00% effective overall tax rate as income goes to infinity
                                                                              1926     1954                                               using exact decimal values of taxes (not integers)
                                                                              ____     ____
taxable income in 2013 dollars $     10000     tax due in  2013 dollars $      150     2000     percentage of taxable income=  1.50%    for tax year 1926  percentage of 1954 taxes   7.50%
taxable income in 2013 dollars $     20000     tax due in  2013 dollars $      300     4057     percentage of taxable income=  1.50%    for tax year 1926  percentage of 1954 taxes   7.39%
taxable income in 2013 dollars $     30000     tax due in  2013 dollars $      450     6257     percentage of taxable income=  1.50%    for tax year 1926  percentage of 1954 taxes   7.19%
taxable income in 2013 dollars $     40000     tax due in  2013 dollars $      600     8684     percentage of taxable income=  1.50%    for tax year 1926  percentage of 1954 taxes   6.91%
taxable income in 2013 dollars $     50000     tax due in  2013 dollars $      750    11284     percentage of taxable income=  1.50%    for tax year 1926  percentage of 1954 taxes   6.65%
taxable income in 2013 dollars $     60000     tax due in  2013 dollars $     1018    14226     percentage of taxable income=  1.70%    for tax year 1926  percentage of 1954 taxes   7.15%
taxable income in 2013 dollars $     70000     tax due in  2013 dollars $     1318    17280     percentage of taxable income=  1.88%    for tax year 1926  percentage of 1954 taxes   7.63%
taxable income in 2013 dollars $     80000     tax due in  2013 dollars $     1618    20680     percentage of taxable income=  2.02%    for tax year 1926  percentage of 1954 taxes   7.82%
taxable income in 2013 dollars $     90000     tax due in  2013 dollars $     1918    24249     percentage of taxable income=  2.13%    for tax year 1926  percentage of 1954 taxes   7.91%
taxable income in 2013 dollars $    100000     tax due in  2013 dollars $     2218    28049     percentage of taxable income=  2.22%    for tax year 1926  percentage of 1954 taxes   7.91%
taxable income in 2013 dollars $    150000     tax due in  2013 dollars $     4828    50981     percentage of taxable income=  3.22%    for tax year 1926  percentage of 1954 taxes   9.47%
taxable income in 2013 dollars $    200000     tax due in  2013 dollars $     8003    78540     percentage of taxable income=  4.00%    for tax year 1926  percentage of 1954 taxes  10.19%
taxable income in 2013 dollars $    250000     tax due in  2013 dollars $    12070   108849     percentage of taxable income=  4.83%    for tax year 1926  percentage of 1954 taxes  11.09%
taxable income in 2013 dollars $    300000     tax due in  2013 dollars $    17095   140614     percentage of taxable income=  5.70%    for tax year 1926  percentage of 1954 taxes  12.16%
taxable income in 2013 dollars $    350000     tax due in  2013 dollars $    22966   174075     percentage of taxable income=  6.56%    for tax year 1926  percentage of 1954 taxes  13.19%
taxable income in 2013 dollars $    400000     tax due in  2013 dollars $    29316   209251     percentage of taxable income=  7.33%    for tax year 1926  percentage of 1954 taxes  14.01%
taxable income in 2013 dollars $    450000     tax due in  2013 dollars $    36144   245884     percentage of taxable income=  8.03%    for tax year 1926  percentage of 1954 taxes  14.70%
taxable income in 2013 dollars $    500000     tax due in  2013 dollars $    43450   283384     percentage of taxable income=  8.69%    for tax year 1926  percentage of 1954 taxes  15.33%
taxable income in 2013 dollars $    600000     tax due in  2013 dollars $    59499   360943     percentage of taxable income=  9.92%    for tax year 1926  percentage of 1954 taxes  16.48%
taxable income in 2013 dollars $    700000     tax due in  2013 dollars $    77462   442341     percentage of taxable income= 11.07%    for tax year 1926  percentage of 1954 taxes  17.51%
taxable income in 2013 dollars $    800000     tax due in  2013 dollars $    97339   527179     percentage of taxable income= 12.17%    for tax year 1926  percentage of 1954 taxes  18.46%
taxable income in 2013 dollars $    900000     tax due in  2013 dollars $   118995   615023     percentage of taxable income= 13.22%    for tax year 1926  percentage of 1954 taxes  19.35%
taxable income in 2013 dollars $   1000000     tax due in  2013 dollars $   141869   704023     percentage of taxable income= 14.19%    for tax year 1926  percentage of 1954 taxes  20.15%

1927 tax rate schedule with ORIGINAL dollar figures(for SINGLE taxpayer)
Historical data for the marginal rates was obtained at the Tax Foundation website at [U.S. Federal Individual Income Tax Rates History, 1913-2011 (Nominal and Inflation-Adjusted Brackets)]
Computation of the actual taxes due and the effective overall tax rate at each level were done by Jeff Sagarin.

Not over $   4000 ...................................  1.50% of the taxable income       1.50% effective overall tax rate
Over $   4000 but not over $   8000    $     60, plus  3.00% of excess over $   4000     2.00% effective overall tax rate(computed on tax on middle of income range)
Over $   8000 but not over $  10000    $    180, plus  5.00% of excess over $   8000     2.56% effective overall tax rate(computed on tax on middle of income range)
Over $  10000 but not over $  14000    $    280, plus  6.00% of excess over $  10000     3.33% effective overall tax rate(computed on tax on middle of income range)
Over $  14000 but not over $  16000    $    520, plus  7.00% of excess over $  14000     3.93% effective overall tax rate(computed on tax on middle of income range)
Over $  16000 but not over $  18000    $    660, plus  8.00% of excess over $  16000     4.35% effective overall tax rate(computed on tax on middle of income range)
Over $  18000 but not over $  20000    $    820, plus  9.00% of excess over $  18000     4.79% effective overall tax rate(computed on tax on middle of income range)
Over $  20000 but not over $  22000    $   1000, plus 10.00% of excess over $  20000     5.24% effective overall tax rate(computed on tax on middle of income range)
Over $  22000 but not over $  24000    $   1200, plus 11.00% of excess over $  22000     5.70% effective overall tax rate(computed on tax on middle of income range)
Over $  24000 but not over $  28000    $   1420, plus 12.00% of excess over $  24000     6.38% effective overall tax rate(computed on tax on middle of income range)
Over $  28000 but not over $  32000    $   1900, plus 13.00% of excess over $  28000     7.20% effective overall tax rate(computed on tax on middle of income range)
Over $  32000 but not over $  36000    $   2420, plus 14.00% of excess over $  32000     7.94% effective overall tax rate(computed on tax on middle of income range)
Over $  36000 but not over $  40000    $   2980, plus 15.00% of excess over $  36000     8.63% effective overall tax rate(computed on tax on middle of income range)
Over $  40000 but not over $  44000    $   3580, plus 16.00% of excess over $  40000     9.29% effective overall tax rate(computed on tax on middle of income range)
Over $  44000 but not over $  48000    $   4220, plus 17.00% of excess over $  44000     9.91% effective overall tax rate(computed on tax on middle of income range)
Over $  48000 but not over $  52000    $   4900, plus 18.00% of excess over $  48000    10.52% effective overall tax rate(computed on tax on middle of income range)
Over $  52000 but not over $  56000    $   5620, plus 19.00% of excess over $  52000    11.11% effective overall tax rate(computed on tax on middle of income range)
Over $  56000 but not over $  60000    $   6380, plus 20.00% of excess over $  56000    11.69% effective overall tax rate(computed on tax on middle of income range)
Over $  60000 but not over $  64000    $   7180, plus 21.00% of excess over $  60000    12.26% effective overall tax rate(computed on tax on middle of income range)
Over $  64000 but not over $  70000    $   8020, plus 22.00% of excess over $  64000    12.96% effective overall tax rate(computed on tax on middle of income range)
Over $  70000 but not over $  80000    $   9340, plus 23.00% of excess over $  70000    13.99% effective overall tax rate(computed on tax on middle of income range)
Over $  80000 but not over $ 100000    $  11640, plus 24.00% of excess over $  80000    15.60% effective overall tax rate(computed on tax on middle of income range)
Over $ 100000 ........................ $  16440, plus 25.00% of excess over $ 100000    16.44% <=> 25.00% effective overall tax rate as income goes to infinity
1927 tax rate schedule with figures INFLATION-ADJUSTED to 2013 dollars(for SINGLE taxpayer) ... the multiplier is 13.261839081 based on the average of the last 12 monthly figures through and including April 2013 released in mid-May 2013)
Inflation multiplier was determined from Bureau of Labor Statistics at [CPI Inflation Calculator | Historical Consumer Price Index]
Computation of the actual taxes due and the effective overall tax rate at each level were done by Jeff Sagarin.

Not over $  53047 ...................................  1.50% of the taxable income       1.50% effective overall tax rate
Over $  53047 but not over $ 106095    $    796, plus  3.00% of excess over $  53047     2.00% effective overall tax rate(computed on tax on middle of income range)
Over $ 106095 but not over $ 132618    $   2387, plus  5.00% of excess over $ 106095     2.56% effective overall tax rate(computed on tax on middle of income range)
Over $ 132618 but not over $ 185666    $   3713, plus  6.00% of excess over $ 132618     3.33% effective overall tax rate(computed on tax on middle of income range)
Over $ 185666 but not over $ 212189    $   6896, plus  7.00% of excess over $ 185666     3.93% effective overall tax rate(computed on tax on middle of income range)
Over $ 212189 but not over $ 238713    $   8753, plus  8.00% of excess over $ 212189     4.35% effective overall tax rate(computed on tax on middle of income range)
Over $ 238713 but not over $ 265237    $  10875, plus  9.00% of excess over $ 238713     4.79% effective overall tax rate(computed on tax on middle of income range)
Over $ 265237 but not over $ 291760    $  13262, plus 10.00% of excess over $ 265237     5.24% effective overall tax rate(computed on tax on middle of income range)
Over $ 291760 but not over $ 318284    $  15914, plus 11.00% of excess over $ 291760     5.70% effective overall tax rate(computed on tax on middle of income range)
Over $ 318284 but not over $ 371331    $  18832, plus 12.00% of excess over $ 318284     6.38% effective overall tax rate(computed on tax on middle of income range)
Over $ 371331 but not over $ 424379    $  25197, plus 13.00% of excess over $ 371331     7.20% effective overall tax rate(computed on tax on middle of income range)
Over $ 424379 but not over $ 477426    $  32094, plus 14.00% of excess over $ 424379     7.94% effective overall tax rate(computed on tax on middle of income range)
Over $ 477426 but not over $ 530474    $  39520, plus 15.00% of excess over $ 477426     8.63% effective overall tax rate(computed on tax on middle of income range)
Over $ 530474 but not over $ 583521    $  47477, plus 16.00% of excess over $ 530474     9.29% effective overall tax rate(computed on tax on middle of income range)
Over $ 583521 but not over $ 636568    $  55965, plus 17.00% of excess over $ 583521     9.91% effective overall tax rate(computed on tax on middle of income range)
Over $ 636568 but not over $ 689616    $  64983, plus 18.00% of excess over $ 636568    10.52% effective overall tax rate(computed on tax on middle of income range)
Over $ 689616 but not over $ 742663    $  74532, plus 19.00% of excess over $ 689616    11.11% effective overall tax rate(computed on tax on middle of income range)
Over $ 742663 but not over $ 795710    $  84611, plus 20.00% of excess over $ 742663    11.69% effective overall tax rate(computed on tax on middle of income range)
Over $ 795710 but not over $ 848758    $  95220, plus 21.00% of excess over $ 795710    12.26% effective overall tax rate(computed on tax on middle of income range)
Over $ 848758 but not over $ 928329    $ 106360, plus 22.00% of excess over $ 848758    12.96% effective overall tax rate(computed on tax on middle of income range)
Over $ 928329 but not over $1060947    $ 123866, plus 23.00% of excess over $ 928329    13.99% effective overall tax rate(computed on tax on middle of income range)
Over $1060947 but not over $1326184    $ 154368, plus 24.00% of excess over $1060947    15.60% effective overall tax rate(computed on tax on middle of income range)
Over $1326184 ........................ $ 218025, plus 25.00% of excess over $1326184    16.44% <=> 25.00% effective overall tax rate as income goes to infinity
                                                                              1927     1954                                               using exact decimal values of taxes (not integers)
                                                                              ____     ____
taxable income in 2013 dollars $     10000     tax due in  2013 dollars $      150     2000     percentage of taxable income=  1.50%    for tax year 1927  percentage of 1954 taxes   7.50%
taxable income in 2013 dollars $     20000     tax due in  2013 dollars $      300     4057     percentage of taxable income=  1.50%    for tax year 1927  percentage of 1954 taxes   7.39%
taxable income in 2013 dollars $     30000     tax due in  2013 dollars $      450     6257     percentage of taxable income=  1.50%    for tax year 1927  percentage of 1954 taxes   7.19%
taxable income in 2013 dollars $     40000     tax due in  2013 dollars $      600     8684     percentage of taxable income=  1.50%    for tax year 1927  percentage of 1954 taxes   6.91%
taxable income in 2013 dollars $     50000     tax due in  2013 dollars $      750    11284     percentage of taxable income=  1.50%    for tax year 1927  percentage of 1954 taxes   6.65%
taxable income in 2013 dollars $     60000     tax due in  2013 dollars $     1004    14226     percentage of taxable income=  1.67%    for tax year 1927  percentage of 1954 taxes   7.06%
taxable income in 2013 dollars $     70000     tax due in  2013 dollars $     1304    17280     percentage of taxable income=  1.86%    for tax year 1927  percentage of 1954 taxes   7.55%
taxable income in 2013 dollars $     80000     tax due in  2013 dollars $     1604    20680     percentage of taxable income=  2.01%    for tax year 1927  percentage of 1954 taxes   7.76%
taxable income in 2013 dollars $     90000     tax due in  2013 dollars $     1904    24249     percentage of taxable income=  2.12%    for tax year 1927  percentage of 1954 taxes   7.85%
taxable income in 2013 dollars $    100000     tax due in  2013 dollars $     2204    28049     percentage of taxable income=  2.20%    for tax year 1927  percentage of 1954 taxes   7.86%
taxable income in 2013 dollars $    150000     tax due in  2013 dollars $     4756    50981     percentage of taxable income=  3.17%    for tax year 1927  percentage of 1954 taxes   9.33%
taxable income in 2013 dollars $    200000     tax due in  2013 dollars $     7900    78540     percentage of taxable income=  3.95%    for tax year 1927  percentage of 1954 taxes  10.06%
taxable income in 2013 dollars $    250000     tax due in  2013 dollars $    11891   108849     percentage of taxable income=  4.76%    for tax year 1927  percentage of 1954 taxes  10.92%
taxable income in 2013 dollars $    300000     tax due in  2013 dollars $    16821   140614     percentage of taxable income=  5.61%    for tax year 1927  percentage of 1954 taxes  11.96%
taxable income in 2013 dollars $    350000     tax due in  2013 dollars $    22638   174075     percentage of taxable income=  6.47%    for tax year 1927  percentage of 1954 taxes  13.00%
taxable income in 2013 dollars $    400000     tax due in  2013 dollars $    28924   209251     percentage of taxable income=  7.23%    for tax year 1927  percentage of 1954 taxes  13.82%
taxable income in 2013 dollars $    450000     tax due in  2013 dollars $    35681   245884     percentage of taxable income=  7.93%    for tax year 1927  percentage of 1954 taxes  14.51%
taxable income in 2013 dollars $    500000     tax due in  2013 dollars $    42906   283384     percentage of taxable income=  8.58%    for tax year 1927  percentage of 1954 taxes  15.14%
taxable income in 2013 dollars $    600000     tax due in  2013 dollars $    58766   360943     percentage of taxable income=  9.79%    for tax year 1927  percentage of 1954 taxes  16.28%
taxable income in 2013 dollars $    700000     tax due in  2013 dollars $    76505   442341     percentage of taxable income= 10.93%    for tax year 1927  percentage of 1954 taxes  17.30%
taxable income in 2013 dollars $    800000     tax due in  2013 dollars $    96121   527179     percentage of taxable income= 12.02%    for tax year 1927  percentage of 1954 taxes  18.23%
taxable income in 2013 dollars $    900000     tax due in  2013 dollars $   117633   615023     percentage of taxable income= 13.07%    for tax year 1927  percentage of 1954 taxes  19.13%
taxable income in 2013 dollars $   1000000     tax due in  2013 dollars $   140350   704023     percentage of taxable income= 14.03%    for tax year 1927  percentage of 1954 taxes  19.94%

1928 tax rate schedule with ORIGINAL dollar figures(for SINGLE taxpayer)
Historical data for the marginal rates was obtained at the Tax Foundation website at [U.S. Federal Individual Income Tax Rates History, 1913-2011 (Nominal and Inflation-Adjusted Brackets)]
Computation of the actual taxes due and the effective overall tax rate at each level were done by Jeff Sagarin.

Not over $   4000 ...................................  1.50% of the taxable income       1.50% effective overall tax rate
Over $   4000 but not over $   8000    $     60, plus  3.00% of excess over $   4000     2.00% effective overall tax rate(computed on tax on middle of income range)
Over $   8000 but not over $  10000    $    180, plus  5.00% of excess over $   8000     2.56% effective overall tax rate(computed on tax on middle of income range)
Over $  10000 but not over $  14000    $    280, plus  6.00% of excess over $  10000     3.33% effective overall tax rate(computed on tax on middle of income range)
Over $  14000 but not over $  16000    $    520, plus  7.00% of excess over $  14000     3.93% effective overall tax rate(computed on tax on middle of income range)
Over $  16000 but not over $  18000    $    660, plus  8.00% of excess over $  16000     4.35% effective overall tax rate(computed on tax on middle of income range)
Over $  18000 but not over $  20000    $    820, plus  9.00% of excess over $  18000     4.79% effective overall tax rate(computed on tax on middle of income range)
Over $  20000 but not over $  22000    $   1000, plus 10.00% of excess over $  20000     5.24% effective overall tax rate(computed on tax on middle of income range)
Over $  22000 but not over $  24000    $   1200, plus 11.00% of excess over $  22000     5.70% effective overall tax rate(computed on tax on middle of income range)
Over $  24000 but not over $  28000    $   1420, plus 12.00% of excess over $  24000     6.38% effective overall tax rate(computed on tax on middle of income range)
Over $  28000 but not over $  32000    $   1900, plus 13.00% of excess over $  28000     7.20% effective overall tax rate(computed on tax on middle of income range)
Over $  32000 but not over $  36000    $   2420, plus 14.00% of excess over $  32000     7.94% effective overall tax rate(computed on tax on middle of income range)
Over $  36000 but not over $  40000    $   2980, plus 15.00% of excess over $  36000     8.63% effective overall tax rate(computed on tax on middle of income range)
Over $  40000 but not over $  44000    $   3580, plus 16.00% of excess over $  40000     9.29% effective overall tax rate(computed on tax on middle of income range)
Over $  44000 but not over $  48000    $   4220, plus 17.00% of excess over $  44000     9.91% effective overall tax rate(computed on tax on middle of income range)
Over $  48000 but not over $  52000    $   4900, plus 18.00% of excess over $  48000    10.52% effective overall tax rate(computed on tax on middle of income range)
Over $  52000 but not over $  56000    $   5620, plus 19.00% of excess over $  52000    11.11% effective overall tax rate(computed on tax on middle of income range)
Over $  56000 but not over $  60000    $   6380, plus 20.00% of excess over $  56000    11.69% effective overall tax rate(computed on tax on middle of income range)
Over $  60000 but not over $  64000    $   7180, plus 21.00% of excess over $  60000    12.26% effective overall tax rate(computed on tax on middle of income range)
Over $  64000 but not over $  70000    $   8020, plus 22.00% of excess over $  64000    12.96% effective overall tax rate(computed on tax on middle of income range)
Over $  70000 but not over $  80000    $   9340, plus 23.00% of excess over $  70000    13.99% effective overall tax rate(computed on tax on middle of income range)
Over $  80000 but not over $ 100000    $  11640, plus 24.00% of excess over $  80000    15.60% effective overall tax rate(computed on tax on middle of income range)
Over $ 100000 ........................ $  16440, plus 25.00% of excess over $ 100000    16.44% <=> 25.00% effective overall tax rate as income goes to infinity
1928 tax rate schedule with figures INFLATION-ADJUSTED to 2013 dollars(for SINGLE taxpayer) ... the multiplier is 13.494502924 based on the average of the last 12 monthly figures through and including April 2013 released in mid-May 2013)
Inflation multiplier was determined from Bureau of Labor Statistics at [CPI Inflation Calculator | Historical Consumer Price Index]
Computation of the actual taxes due and the effective overall tax rate at each level were done by Jeff Sagarin.

Not over $  53978 ...................................  1.50% of the taxable income       1.50% effective overall tax rate
Over $  53978 but not over $ 107956    $    810, plus  3.00% of excess over $  53978     2.00% effective overall tax rate(computed on tax on middle of income range)
Over $ 107956 but not over $ 134945    $   2429, plus  5.00% of excess over $ 107956     2.56% effective overall tax rate(computed on tax on middle of income range)
Over $ 134945 but not over $ 188923    $   3778, plus  6.00% of excess over $ 134945     3.33% effective overall tax rate(computed on tax on middle of income range)
Over $ 188923 but not over $ 215912    $   7017, plus  7.00% of excess over $ 188923     3.93% effective overall tax rate(computed on tax on middle of income range)
Over $ 215912 but not over $ 242901    $   8906, plus  8.00% of excess over $ 215912     4.35% effective overall tax rate(computed on tax on middle of income range)
Over $ 242901 but not over $ 269890    $  11065, plus  9.00% of excess over $ 242901     4.79% effective overall tax rate(computed on tax on middle of income range)
Over $ 269890 but not over $ 296879    $  13495, plus 10.00% of excess over $ 269890     5.24% effective overall tax rate(computed on tax on middle of income range)
Over $ 296879 but not over $ 323868    $  16193, plus 11.00% of excess over $ 296879     5.70% effective overall tax rate(computed on tax on middle of income range)
Over $ 323868 but not over $ 377846    $  19162, plus 12.00% of excess over $ 323868     6.38% effective overall tax rate(computed on tax on middle of income range)
Over $ 377846 but not over $ 431824    $  25640, plus 13.00% of excess over $ 377846     7.20% effective overall tax rate(computed on tax on middle of income range)
Over $ 431824 but not over $ 485802    $  32657, plus 14.00% of excess over $ 431824     7.94% effective overall tax rate(computed on tax on middle of income range)
Over $ 485802 but not over $ 539780    $  40214, plus 15.00% of excess over $ 485802     8.63% effective overall tax rate(computed on tax on middle of income range)
Over $ 539780 but not over $ 593758    $  48310, plus 16.00% of excess over $ 539780     9.29% effective overall tax rate(computed on tax on middle of income range)
Over $ 593758 but not over $ 647736    $  56947, plus 17.00% of excess over $ 593758     9.91% effective overall tax rate(computed on tax on middle of income range)
Over $ 647736 but not over $ 701714    $  66123, plus 18.00% of excess over $ 647736    10.52% effective overall tax rate(computed on tax on middle of income range)
Over $ 701714 but not over $ 755692    $  75839, plus 19.00% of excess over $ 701714    11.11% effective overall tax rate(computed on tax on middle of income range)
Over $ 755692 but not over $ 809670    $  86095, plus 20.00% of excess over $ 755692    11.69% effective overall tax rate(computed on tax on middle of income range)
Over $ 809670 but not over $ 863648    $  96891, plus 21.00% of excess over $ 809670    12.26% effective overall tax rate(computed on tax on middle of income range)
Over $ 863648 but not over $ 944615    $ 108226, plus 22.00% of excess over $ 863648    12.96% effective overall tax rate(computed on tax on middle of income range)
Over $ 944615 but not over $1079560    $ 126039, plus 23.00% of excess over $ 944615    13.99% effective overall tax rate(computed on tax on middle of income range)
Over $1079560 but not over $1349450    $ 157076, plus 24.00% of excess over $1079560    15.60% effective overall tax rate(computed on tax on middle of income range)
Over $1349450 ........................ $ 221850, plus 25.00% of excess over $1349450    16.44% <=> 25.00% effective overall tax rate as income goes to infinity
                                                                              1928     1954                                               using exact decimal values of taxes (not integers)
                                                                              ____     ____
taxable income in 2013 dollars $     10000     tax due in  2013 dollars $      150     2000     percentage of taxable income=  1.50%    for tax year 1928  percentage of 1954 taxes   7.50%
taxable income in 2013 dollars $     20000     tax due in  2013 dollars $      300     4057     percentage of taxable income=  1.50%    for tax year 1928  percentage of 1954 taxes   7.39%
taxable income in 2013 dollars $     30000     tax due in  2013 dollars $      450     6257     percentage of taxable income=  1.50%    for tax year 1928  percentage of 1954 taxes   7.19%
taxable income in 2013 dollars $     40000     tax due in  2013 dollars $      600     8684     percentage of taxable income=  1.50%    for tax year 1928  percentage of 1954 taxes   6.91%
taxable income in 2013 dollars $     50000     tax due in  2013 dollars $      750    11284     percentage of taxable income=  1.50%    for tax year 1928  percentage of 1954 taxes   6.65%
taxable income in 2013 dollars $     60000     tax due in  2013 dollars $      990    14226     percentage of taxable income=  1.65%    for tax year 1928  percentage of 1954 taxes   6.96%
taxable income in 2013 dollars $     70000     tax due in  2013 dollars $     1290    17280     percentage of taxable income=  1.84%    for tax year 1928  percentage of 1954 taxes   7.47%
taxable income in 2013 dollars $     80000     tax due in  2013 dollars $     1590    20680     percentage of taxable income=  1.99%    for tax year 1928  percentage of 1954 taxes   7.69%
taxable income in 2013 dollars $     90000     tax due in  2013 dollars $     1890    24249     percentage of taxable income=  2.10%    for tax year 1928  percentage of 1954 taxes   7.80%
taxable income in 2013 dollars $    100000     tax due in  2013 dollars $     2190    28049     percentage of taxable income=  2.19%    for tax year 1928  percentage of 1954 taxes   7.81%
taxable income in 2013 dollars $    150000     tax due in  2013 dollars $     4682    50981     percentage of taxable income=  3.12%    for tax year 1928  percentage of 1954 taxes   9.18%
taxable income in 2013 dollars $    200000     tax due in  2013 dollars $     7793    78540     percentage of taxable income=  3.90%    for tax year 1928  percentage of 1954 taxes   9.92%
taxable income in 2013 dollars $    250000     tax due in  2013 dollars $    11704   108849     percentage of taxable income=  4.68%    for tax year 1928  percentage of 1954 taxes  10.75%
taxable income in 2013 dollars $    300000     tax due in  2013 dollars $    16537   140614     percentage of taxable income=  5.51%    for tax year 1928  percentage of 1954 taxes  11.76%
taxable income in 2013 dollars $    350000     tax due in  2013 dollars $    22298   174075     percentage of taxable income=  6.37%    for tax year 1928  percentage of 1954 taxes  12.81%
taxable income in 2013 dollars $    400000     tax due in  2013 dollars $    28520   209251     percentage of taxable income=  7.13%    for tax year 1928  percentage of 1954 taxes  13.63%
taxable income in 2013 dollars $    450000     tax due in  2013 dollars $    35201   245884     percentage of taxable income=  7.82%    for tax year 1928  percentage of 1954 taxes  14.32%
taxable income in 2013 dollars $    500000     tax due in  2013 dollars $    42343   283384     percentage of taxable income=  8.47%    for tax year 1928  percentage of 1954 taxes  14.94%
taxable income in 2013 dollars $    600000     tax due in  2013 dollars $    58008   360943     percentage of taxable income=  9.67%    for tax year 1928  percentage of 1954 taxes  16.07%
taxable income in 2013 dollars $    700000     tax due in  2013 dollars $    75531   442341     percentage of taxable income= 10.79%    for tax year 1928  percentage of 1954 taxes  17.08%
taxable income in 2013 dollars $    800000     tax due in  2013 dollars $    94956   527179     percentage of taxable income= 11.87%    for tax year 1928  percentage of 1954 taxes  18.01%
taxable income in 2013 dollars $    900000     tax due in  2013 dollars $   116223   615023     percentage of taxable income= 12.91%    for tax year 1928  percentage of 1954 taxes  18.90%
taxable income in 2013 dollars $   1000000     tax due in  2013 dollars $   138777   704023     percentage of taxable income= 13.88%    for tax year 1928  percentage of 1954 taxes  19.71%

1929 tax rate schedule with ORIGINAL dollar figures(for SINGLE taxpayer)
Historical data for the marginal rates was obtained at the Tax Foundation website at [U.S. Federal Individual Income Tax Rates History, 1913-2011 (Nominal and Inflation-Adjusted Brackets)]
Computation of the actual taxes due and the effective overall tax rate at each level were done by Jeff Sagarin.

Not over $   4000 ...................................  1.50% of the taxable income       1.50% effective overall tax rate
Over $   4000 but not over $   8000    $     60, plus  3.00% of excess over $   4000     2.00% effective overall tax rate(computed on tax on middle of income range)
Over $   8000 but not over $  10000    $    180, plus  5.00% of excess over $   8000     2.56% effective overall tax rate(computed on tax on middle of income range)
Over $  10000 but not over $  14000    $    280, plus  6.00% of excess over $  10000     3.33% effective overall tax rate(computed on tax on middle of income range)
Over $  14000 but not over $  16000    $    520, plus  7.00% of excess over $  14000     3.93% effective overall tax rate(computed on tax on middle of income range)
Over $  16000 but not over $  18000    $    660, plus  8.00% of excess over $  16000     4.35% effective overall tax rate(computed on tax on middle of income range)
Over $  18000 but not over $  20000    $    820, plus  9.00% of excess over $  18000     4.79% effective overall tax rate(computed on tax on middle of income range)
Over $  20000 but not over $  22000    $   1000, plus 10.00% of excess over $  20000     5.24% effective overall tax rate(computed on tax on middle of income range)
Over $  22000 but not over $  24000    $   1200, plus 11.00% of excess over $  22000     5.70% effective overall tax rate(computed on tax on middle of income range)
Over $  24000 but not over $  28000    $   1420, plus 12.00% of excess over $  24000     6.38% effective overall tax rate(computed on tax on middle of income range)
Over $  28000 but not over $  32000    $   1900, plus 13.00% of excess over $  28000     7.20% effective overall tax rate(computed on tax on middle of income range)
Over $  32000 but not over $  36000    $   2420, plus 14.00% of excess over $  32000     7.94% effective overall tax rate(computed on tax on middle of income range)
Over $  36000 but not over $  40000    $   2980, plus 15.00% of excess over $  36000     8.63% effective overall tax rate(computed on tax on middle of income range)
Over $  40000 but not over $  44000    $   3580, plus 16.00% of excess over $  40000     9.29% effective overall tax rate(computed on tax on middle of income range)
Over $  44000 but not over $  48000    $   4220, plus 17.00% of excess over $  44000     9.91% effective overall tax rate(computed on tax on middle of income range)
Over $  48000 but not over $  52000    $   4900, plus 18.00% of excess over $  48000    10.52% effective overall tax rate(computed on tax on middle of income range)
Over $  52000 but not over $  56000    $   5620, plus 19.00% of excess over $  52000    11.11% effective overall tax rate(computed on tax on middle of income range)
Over $  56000 but not over $  60000    $   6380, plus 20.00% of excess over $  56000    11.69% effective overall tax rate(computed on tax on middle of income range)
Over $  60000 but not over $  64000    $   7180, plus 21.00% of excess over $  60000    12.26% effective overall tax rate(computed on tax on middle of income range)
Over $  64000 but not over $  70000    $   8020, plus 22.00% of excess over $  64000    12.96% effective overall tax rate(computed on tax on middle of income range)
Over $  70000 but not over $  80000    $   9340, plus 23.00% of excess over $  70000    13.99% effective overall tax rate(computed on tax on middle of income range)
Over $  80000 but not over $ 100000    $  11640, plus 24.00% of excess over $  80000    15.60% effective overall tax rate(computed on tax on middle of income range)
Over $ 100000 ........................ $  16440, plus 25.00% of excess over $ 100000    16.44% <=> 25.00% effective overall tax rate as income goes to infinity
1929 tax rate schedule with figures INFLATION-ADJUSTED to 2013 dollars(for SINGLE taxpayer) ... the multiplier is 13.494502924 based on the average of the last 12 monthly figures through and including April 2013 released in mid-May 2013)
Inflation multiplier was determined from Bureau of Labor Statistics at [CPI Inflation Calculator | Historical Consumer Price Index]
Computation of the actual taxes due and the effective overall tax rate at each level were done by Jeff Sagarin.

Not over $  53978 ...................................  1.50% of the taxable income       1.50% effective overall tax rate
Over $  53978 but not over $ 107956    $    810, plus  3.00% of excess over $  53978     2.00% effective overall tax rate(computed on tax on middle of income range)
Over $ 107956 but not over $ 134945    $   2429, plus  5.00% of excess over $ 107956     2.56% effective overall tax rate(computed on tax on middle of income range)
Over $ 134945 but not over $ 188923    $   3778, plus  6.00% of excess over $ 134945     3.33% effective overall tax rate(computed on tax on middle of income range)
Over $ 188923 but not over $ 215912    $   7017, plus  7.00% of excess over $ 188923     3.93% effective overall tax rate(computed on tax on middle of income range)
Over $ 215912 but not over $ 242901    $   8906, plus  8.00% of excess over $ 215912     4.35% effective overall tax rate(computed on tax on middle of income range)
Over $ 242901 but not over $ 269890    $  11065, plus  9.00% of excess over $ 242901     4.79% effective overall tax rate(computed on tax on middle of income range)
Over $ 269890 but not over $ 296879    $  13495, plus 10.00% of excess over $ 269890     5.24% effective overall tax rate(computed on tax on middle of income range)
Over $ 296879 but not over $ 323868    $  16193, plus 11.00% of excess over $ 296879     5.70% effective overall tax rate(computed on tax on middle of income range)
Over $ 323868 but not over $ 377846    $  19162, plus 12.00% of excess over $ 323868     6.38% effective overall tax rate(computed on tax on middle of income range)
Over $ 377846 but not over $ 431824    $  25640, plus 13.00% of excess over $ 377846     7.20% effective overall tax rate(computed on tax on middle of income range)
Over $ 431824 but not over $ 485802    $  32657, plus 14.00% of excess over $ 431824     7.94% effective overall tax rate(computed on tax on middle of income range)
Over $ 485802 but not over $ 539780    $  40214, plus 15.00% of excess over $ 485802     8.63% effective overall tax rate(computed on tax on middle of income range)
Over $ 539780 but not over $ 593758    $  48310, plus 16.00% of excess over $ 539780     9.29% effective overall tax rate(computed on tax on middle of income range)
Over $ 593758 but not over $ 647736    $  56947, plus 17.00% of excess over $ 593758     9.91% effective overall tax rate(computed on tax on middle of income range)
Over $ 647736 but not over $ 701714    $  66123, plus 18.00% of excess over $ 647736    10.52% effective overall tax rate(computed on tax on middle of income range)
Over $ 701714 but not over $ 755692    $  75839, plus 19.00% of excess over $ 701714    11.11% effective overall tax rate(computed on tax on middle of income range)
Over $ 755692 but not over $ 809670    $  86095, plus 20.00% of excess over $ 755692    11.69% effective overall tax rate(computed on tax on middle of income range)
Over $ 809670 but not over $ 863648    $  96891, plus 21.00% of excess over $ 809670    12.26% effective overall tax rate(computed on tax on middle of income range)
Over $ 863648 but not over $ 944615    $ 108226, plus 22.00% of excess over $ 863648    12.96% effective overall tax rate(computed on tax on middle of income range)
Over $ 944615 but not over $1079560    $ 126039, plus 23.00% of excess over $ 944615    13.99% effective overall tax rate(computed on tax on middle of income range)
Over $1079560 but not over $1349450    $ 157076, plus 24.00% of excess over $1079560    15.60% effective overall tax rate(computed on tax on middle of income range)
Over $1349450 ........................ $ 221850, plus 25.00% of excess over $1349450    16.44% <=> 25.00% effective overall tax rate as income goes to infinity
                                                                              1929     1954                                               using exact decimal values of taxes (not integers)
                                                                              ____     ____
taxable income in 2013 dollars $     10000     tax due in  2013 dollars $      150     2000     percentage of taxable income=  1.50%    for tax year 1929  percentage of 1954 taxes   7.50%
taxable income in 2013 dollars $     20000     tax due in  2013 dollars $      300     4057     percentage of taxable income=  1.50%    for tax year 1929  percentage of 1954 taxes   7.39%
taxable income in 2013 dollars $     30000     tax due in  2013 dollars $      450     6257     percentage of taxable income=  1.50%    for tax year 1929  percentage of 1954 taxes   7.19%
taxable income in 2013 dollars $     40000     tax due in  2013 dollars $      600     8684     percentage of taxable income=  1.50%    for tax year 1929  percentage of 1954 taxes   6.91%
taxable income in 2013 dollars $     50000     tax due in  2013 dollars $      750    11284     percentage of taxable income=  1.50%    for tax year 1929  percentage of 1954 taxes   6.65%
taxable income in 2013 dollars $     60000     tax due in  2013 dollars $      990    14226     percentage of taxable income=  1.65%    for tax year 1929  percentage of 1954 taxes   6.96%
taxable income in 2013 dollars $     70000     tax due in  2013 dollars $     1290    17280     percentage of taxable income=  1.84%    for tax year 1929  percentage of 1954 taxes   7.47%
taxable income in 2013 dollars $     80000     tax due in  2013 dollars $     1590    20680     percentage of taxable income=  1.99%    for tax year 1929  percentage of 1954 taxes   7.69%
taxable income in 2013 dollars $     90000     tax due in  2013 dollars $     1890    24249     percentage of taxable income=  2.10%    for tax year 1929  percentage of 1954 taxes   7.80%
taxable income in 2013 dollars $    100000     tax due in  2013 dollars $     2190    28049     percentage of taxable income=  2.19%    for tax year 1929  percentage of 1954 taxes   7.81%
taxable income in 2013 dollars $    150000     tax due in  2013 dollars $     4682    50981     percentage of taxable income=  3.12%    for tax year 1929  percentage of 1954 taxes   9.18%
taxable income in 2013 dollars $    200000     tax due in  2013 dollars $     7793    78540     percentage of taxable income=  3.90%    for tax year 1929  percentage of 1954 taxes   9.92%
taxable income in 2013 dollars $    250000     tax due in  2013 dollars $    11704   108849     percentage of taxable income=  4.68%    for tax year 1929  percentage of 1954 taxes  10.75%
taxable income in 2013 dollars $    300000     tax due in  2013 dollars $    16537   140614     percentage of taxable income=  5.51%    for tax year 1929  percentage of 1954 taxes  11.76%
taxable income in 2013 dollars $    350000     tax due in  2013 dollars $    22298   174075     percentage of taxable income=  6.37%    for tax year 1929  percentage of 1954 taxes  12.81%
taxable income in 2013 dollars $    400000     tax due in  2013 dollars $    28520   209251     percentage of taxable income=  7.13%    for tax year 1929  percentage of 1954 taxes  13.63%
taxable income in 2013 dollars $    450000     tax due in  2013 dollars $    35201   245884     percentage of taxable income=  7.82%    for tax year 1929  percentage of 1954 taxes  14.32%
taxable income in 2013 dollars $    500000     tax due in  2013 dollars $    42343   283384     percentage of taxable income=  8.47%    for tax year 1929  percentage of 1954 taxes  14.94%
taxable income in 2013 dollars $    600000     tax due in  2013 dollars $    58008   360943     percentage of taxable income=  9.67%    for tax year 1929  percentage of 1954 taxes  16.07%
taxable income in 2013 dollars $    700000     tax due in  2013 dollars $    75531   442341     percentage of taxable income= 10.79%    for tax year 1929  percentage of 1954 taxes  17.08%
taxable income in 2013 dollars $    800000     tax due in  2013 dollars $    94956   527179     percentage of taxable income= 11.87%    for tax year 1929  percentage of 1954 taxes  18.01%
taxable income in 2013 dollars $    900000     tax due in  2013 dollars $   116223   615023     percentage of taxable income= 12.91%    for tax year 1929  percentage of 1954 taxes  18.90%
taxable income in 2013 dollars $   1000000     tax due in  2013 dollars $   138777   704023     percentage of taxable income= 13.88%    for tax year 1929  percentage of 1954 taxes  19.71%

1930 tax rate schedule with ORIGINAL dollar figures(for SINGLE taxpayer)
Historical data for the marginal rates was obtained at the Tax Foundation website at [U.S. Federal Individual Income Tax Rates History, 1913-2011 (Nominal and Inflation-Adjusted Brackets)]
Computation of the actual taxes due and the effective overall tax rate at each level were done by Jeff Sagarin.

Not over $   4000 ...................................  1.50% of the taxable income       1.50% effective overall tax rate
Over $   4000 but not over $   8000    $     60, plus  3.00% of excess over $   4000     2.00% effective overall tax rate(computed on tax on middle of income range)
Over $   8000 but not over $  10000    $    180, plus  5.00% of excess over $   8000     2.56% effective overall tax rate(computed on tax on middle of income range)
Over $  10000 but not over $  14000    $    280, plus  6.00% of excess over $  10000     3.33% effective overall tax rate(computed on tax on middle of income range)
Over $  14000 but not over $  16000    $    520, plus  7.00% of excess over $  14000     3.93% effective overall tax rate(computed on tax on middle of income range)
Over $  16000 but not over $  18000    $    660, plus  8.00% of excess over $  16000     4.35% effective overall tax rate(computed on tax on middle of income range)
Over $  18000 but not over $  20000    $    820, plus  9.00% of excess over $  18000     4.79% effective overall tax rate(computed on tax on middle of income range)
Over $  20000 but not over $  22000    $   1000, plus 10.00% of excess over $  20000     5.24% effective overall tax rate(computed on tax on middle of income range)
Over $  22000 but not over $  24000    $   1200, plus 11.00% of excess over $  22000     5.70% effective overall tax rate(computed on tax on middle of income range)
Over $  24000 but not over $  28000    $   1420, plus 12.00% of excess over $  24000     6.38% effective overall tax rate(computed on tax on middle of income range)
Over $  28000 but not over $  32000    $   1900, plus 13.00% of excess over $  28000     7.20% effective overall tax rate(computed on tax on middle of income range)
Over $  32000 but not over $  36000    $   2420, plus 14.00% of excess over $  32000     7.94% effective overall tax rate(computed on tax on middle of income range)
Over $  36000 but not over $  40000    $   2980, plus 15.00% of excess over $  36000     8.63% effective overall tax rate(computed on tax on middle of income range)
Over $  40000 but not over $  44000    $   3580, plus 16.00% of excess over $  40000     9.29% effective overall tax rate(computed on tax on middle of income range)
Over $  44000 but not over $  48000    $   4220, plus 17.00% of excess over $  44000     9.91% effective overall tax rate(computed on tax on middle of income range)
Over $  48000 but not over $  52000    $   4900, plus 18.00% of excess over $  48000    10.52% effective overall tax rate(computed on tax on middle of income range)
Over $  52000 but not over $  56000    $   5620, plus 19.00% of excess over $  52000    11.11% effective overall tax rate(computed on tax on middle of income range)
Over $  56000 but not over $  60000    $   6380, plus 20.00% of excess over $  56000    11.69% effective overall tax rate(computed on tax on middle of income range)
Over $  60000 but not over $  64000    $   7180, plus 21.00% of excess over $  60000    12.26% effective overall tax rate(computed on tax on middle of income range)
Over $  64000 but not over $  70000    $   8020, plus 22.00% of excess over $  64000    12.96% effective overall tax rate(computed on tax on middle of income range)
Over $  70000 but not over $  80000    $   9340, plus 23.00% of excess over $  70000    13.99% effective overall tax rate(computed on tax on middle of income range)
Over $  80000 but not over $ 100000    $  11640, plus 24.00% of excess over $  80000    15.60% effective overall tax rate(computed on tax on middle of income range)
Over $ 100000 ........................ $  16440, plus 25.00% of excess over $ 100000    16.44% <=> 25.00% effective overall tax rate as income goes to infinity
1930 tax rate schedule with figures INFLATION-ADJUSTED to 2013 dollars(for SINGLE taxpayer) ... the multiplier is 13.817724551 based on the average of the last 12 monthly figures through and including April 2013 released in mid-May 2013)
Inflation multiplier was determined from Bureau of Labor Statistics at [CPI Inflation Calculator | Historical Consumer Price Index]
Computation of the actual taxes due and the effective overall tax rate at each level were done by Jeff Sagarin.

Not over $  55271 ...................................  1.50% of the taxable income       1.50% effective overall tax rate
Over $  55271 but not over $ 110542    $    829, plus  3.00% of excess over $  55271     2.00% effective overall tax rate(computed on tax on middle of income range)
Over $ 110542 but not over $ 138177    $   2487, plus  5.00% of excess over $ 110542     2.56% effective overall tax rate(computed on tax on middle of income range)
Over $ 138177 but not over $ 193448    $   3869, plus  6.00% of excess over $ 138177     3.33% effective overall tax rate(computed on tax on middle of income range)
Over $ 193448 but not over $ 221084    $   7185, plus  7.00% of excess over $ 193448     3.93% effective overall tax rate(computed on tax on middle of income range)
Over $ 221084 but not over $ 248719    $   9120, plus  8.00% of excess over $ 221084     4.35% effective overall tax rate(computed on tax on middle of income range)
Over $ 248719 but not over $ 276354    $  11331, plus  9.00% of excess over $ 248719     4.79% effective overall tax rate(computed on tax on middle of income range)
Over $ 276354 but not over $ 303990    $  13818, plus 10.00% of excess over $ 276354     5.24% effective overall tax rate(computed on tax on middle of income range)
Over $ 303990 but not over $ 331625    $  16581, plus 11.00% of excess over $ 303990     5.70% effective overall tax rate(computed on tax on middle of income range)
Over $ 331625 but not over $ 386896    $  19621, plus 12.00% of excess over $ 331625     6.38% effective overall tax rate(computed on tax on middle of income range)
Over $ 386896 but not over $ 442167    $  26254, plus 13.00% of excess over $ 386896     7.20% effective overall tax rate(computed on tax on middle of income range)
Over $ 442167 but not over $ 497438    $  33439, plus 14.00% of excess over $ 442167     7.94% effective overall tax rate(computed on tax on middle of income range)
Over $ 497438 but not over $ 552709    $  41177, plus 15.00% of excess over $ 497438     8.63% effective overall tax rate(computed on tax on middle of income range)
Over $ 552709 but not over $ 607980    $  49467, plus 16.00% of excess over $ 552709     9.29% effective overall tax rate(computed on tax on middle of income range)
Over $ 607980 but not over $ 663251    $  58311, plus 17.00% of excess over $ 607980     9.91% effective overall tax rate(computed on tax on middle of income range)
Over $ 663251 but not over $ 718522    $  67707, plus 18.00% of excess over $ 663251    10.52% effective overall tax rate(computed on tax on middle of income range)
Over $ 718522 but not over $ 773793    $  77656, plus 19.00% of excess over $ 718522    11.11% effective overall tax rate(computed on tax on middle of income range)
Over $ 773793 but not over $ 829063    $  88157, plus 20.00% of excess over $ 773793    11.69% effective overall tax rate(computed on tax on middle of income range)
Over $ 829063 but not over $ 884334    $  99211, plus 21.00% of excess over $ 829063    12.26% effective overall tax rate(computed on tax on middle of income range)
Over $ 884334 but not over $ 967241    $ 110818, plus 22.00% of excess over $ 884334    12.96% effective overall tax rate(computed on tax on middle of income range)
Over $ 967241 but not over $1105418    $ 129058, plus 23.00% of excess over $ 967241    13.99% effective overall tax rate(computed on tax on middle of income range)
Over $1105418 but not over $1381772    $ 160838, plus 24.00% of excess over $1105418    15.60% effective overall tax rate(computed on tax on middle of income range)
Over $1381772 ........................ $ 227163, plus 25.00% of excess over $1381772    16.44% <=> 25.00% effective overall tax rate as income goes to infinity
                                                                              1930     1954                                               using exact decimal values of taxes (not integers)
                                                                              ____     ____
taxable income in 2013 dollars $     10000     tax due in  2013 dollars $      150     2000     percentage of taxable income=  1.50%    for tax year 1930  percentage of 1954 taxes   7.50%
taxable income in 2013 dollars $     20000     tax due in  2013 dollars $      300     4057     percentage of taxable income=  1.50%    for tax year 1930  percentage of 1954 taxes   7.39%
taxable income in 2013 dollars $     30000     tax due in  2013 dollars $      450     6257     percentage of taxable income=  1.50%    for tax year 1930  percentage of 1954 taxes   7.19%
taxable income in 2013 dollars $     40000     tax due in  2013 dollars $      600     8684     percentage of taxable income=  1.50%    for tax year 1930  percentage of 1954 taxes   6.91%
taxable income in 2013 dollars $     50000     tax due in  2013 dollars $      750    11284     percentage of taxable income=  1.50%    for tax year 1930  percentage of 1954 taxes   6.65%
taxable income in 2013 dollars $     60000     tax due in  2013 dollars $      971    14226     percentage of taxable income=  1.62%    for tax year 1930  percentage of 1954 taxes   6.83%
taxable income in 2013 dollars $     70000     tax due in  2013 dollars $     1271    17280     percentage of taxable income=  1.82%    for tax year 1930  percentage of 1954 taxes   7.35%
taxable income in 2013 dollars $     80000     tax due in  2013 dollars $     1571    20680     percentage of taxable income=  1.96%    for tax year 1930  percentage of 1954 taxes   7.60%
taxable income in 2013 dollars $     90000     tax due in  2013 dollars $     1871    24249     percentage of taxable income=  2.08%    for tax year 1930  percentage of 1954 taxes   7.72%
taxable income in 2013 dollars $    100000     tax due in  2013 dollars $     2171    28049     percentage of taxable income=  2.17%    for tax year 1930  percentage of 1954 taxes   7.74%
taxable income in 2013 dollars $    150000     tax due in  2013 dollars $     4578    50981     percentage of taxable income=  3.05%    for tax year 1930  percentage of 1954 taxes   8.98%
taxable income in 2013 dollars $    200000     tax due in  2013 dollars $     7644    78540     percentage of taxable income=  3.82%    for tax year 1930  percentage of 1954 taxes   9.73%
taxable income in 2013 dollars $    250000     tax due in  2013 dollars $    11446   108849     percentage of taxable income=  4.58%    for tax year 1930  percentage of 1954 taxes  10.52%
taxable income in 2013 dollars $    300000     tax due in  2013 dollars $    16182   140614     percentage of taxable income=  5.39%    for tax year 1930  percentage of 1954 taxes  11.51%
taxable income in 2013 dollars $    350000     tax due in  2013 dollars $    21826   174075     percentage of taxable income=  6.24%    for tax year 1930  percentage of 1954 taxes  12.54%
taxable income in 2013 dollars $    400000     tax due in  2013 dollars $    27957   209251     percentage of taxable income=  6.99%    for tax year 1930  percentage of 1954 taxes  13.36%
taxable income in 2013 dollars $    450000     tax due in  2013 dollars $    34535   245884     percentage of taxable income=  7.67%    for tax year 1930  percentage of 1954 taxes  14.05%
taxable income in 2013 dollars $    500000     tax due in  2013 dollars $    41561   283384     percentage of taxable income=  8.31%    for tax year 1930  percentage of 1954 taxes  14.67%
taxable income in 2013 dollars $    600000     tax due in  2013 dollars $    57034   360943     percentage of taxable income=  9.51%    for tax year 1930  percentage of 1954 taxes  15.80%
taxable income in 2013 dollars $    700000     tax due in  2013 dollars $    74322   442341     percentage of taxable income= 10.62%    for tax year 1930  percentage of 1954 taxes  16.80%
taxable income in 2013 dollars $    800000     tax due in  2013 dollars $    93399   527179     percentage of taxable income= 11.67%    for tax year 1930  percentage of 1954 taxes  17.72%
taxable income in 2013 dollars $    900000     tax due in  2013 dollars $   114265   615023     percentage of taxable income= 12.70%    for tax year 1930  percentage of 1954 taxes  18.58%
taxable income in 2013 dollars $   1000000     tax due in  2013 dollars $   136592   704023     percentage of taxable income= 13.66%    for tax year 1930  percentage of 1954 taxes  19.40%

1931 tax rate schedule with ORIGINAL dollar figures(for SINGLE taxpayer)
Historical data for the marginal rates was obtained at the Tax Foundation website at [U.S. Federal Individual Income Tax Rates History, 1913-2011 (Nominal and Inflation-Adjusted Brackets)]
Computation of the actual taxes due and the effective overall tax rate at each level were done by Jeff Sagarin.

Not over $   4000 ...................................  1.50% of the taxable income       1.50% effective overall tax rate
Over $   4000 but not over $   8000    $     60, plus  3.00% of excess over $   4000     2.00% effective overall tax rate(computed on tax on middle of income range)
Over $   8000 but not over $  10000    $    180, plus  5.00% of excess over $   8000     2.56% effective overall tax rate(computed on tax on middle of income range)
Over $  10000 but not over $  14000    $    280, plus  6.00% of excess over $  10000     3.33% effective overall tax rate(computed on tax on middle of income range)
Over $  14000 but not over $  16000    $    520, plus  7.00% of excess over $  14000     3.93% effective overall tax rate(computed on tax on middle of income range)
Over $  16000 but not over $  18000    $    660, plus  8.00% of excess over $  16000     4.35% effective overall tax rate(computed on tax on middle of income range)
Over $  18000 but not over $  20000    $    820, plus  9.00% of excess over $  18000     4.79% effective overall tax rate(computed on tax on middle of income range)
Over $  20000 but not over $  22000    $   1000, plus 10.00% of excess over $  20000     5.24% effective overall tax rate(computed on tax on middle of income range)
Over $  22000 but not over $  24000    $   1200, plus 11.00% of excess over $  22000     5.70% effective overall tax rate(computed on tax on middle of income range)
Over $  24000 but not over $  28000    $   1420, plus 12.00% of excess over $  24000     6.38% effective overall tax rate(computed on tax on middle of income range)
Over $  28000 but not over $  32000    $   1900, plus 13.00% of excess over $  28000     7.20% effective overall tax rate(computed on tax on middle of income range)
Over $  32000 but not over $  36000    $   2420, plus 14.00% of excess over $  32000     7.94% effective overall tax rate(computed on tax on middle of income range)
Over $  36000 but not over $  40000    $   2980, plus 15.00% of excess over $  36000     8.63% effective overall tax rate(computed on tax on middle of income range)
Over $  40000 but not over $  44000    $   3580, plus 16.00% of excess over $  40000     9.29% effective overall tax rate(computed on tax on middle of income range)
Over $  44000 but not over $  48000    $   4220, plus 17.00% of excess over $  44000     9.91% effective overall tax rate(computed on tax on middle of income range)
Over $  48000 but not over $  52000    $   4900, plus 18.00% of excess over $  48000    10.52% effective overall tax rate(computed on tax on middle of income range)
Over $  52000 but not over $  56000    $   5620, plus 19.00% of excess over $  52000    11.11% effective overall tax rate(computed on tax on middle of income range)
Over $  56000 but not over $  60000    $   6380, plus 20.00% of excess over $  56000    11.69% effective overall tax rate(computed on tax on middle of income range)
Over $  60000 but not over $  64000    $   7180, plus 21.00% of excess over $  60000    12.26% effective overall tax rate(computed on tax on middle of income range)
Over $  64000 but not over $  70000    $   8020, plus 22.00% of excess over $  64000    12.96% effective overall tax rate(computed on tax on middle of income range)
Over $  70000 but not over $  80000    $   9340, plus 23.00% of excess over $  70000    13.99% effective overall tax rate(computed on tax on middle of income range)
Over $  80000 but not over $ 100000    $  11640, plus 24.00% of excess over $  80000    15.60% effective overall tax rate(computed on tax on middle of income range)
Over $ 100000 ........................ $  16440, plus 25.00% of excess over $ 100000    16.44% <=> 25.00% effective overall tax rate as income goes to infinity
1931 tax rate schedule with figures INFLATION-ADJUSTED to 2013 dollars(for SINGLE taxpayer) ... the multiplier is 15.181315789 based on the average of the last 12 monthly figures through and including April 2013 released in mid-May 2013)
Inflation multiplier was determined from Bureau of Labor Statistics at [CPI Inflation Calculator | Historical Consumer Price Index]
Computation of the actual taxes due and the effective overall tax rate at each level were done by Jeff Sagarin.

Not over $  60725 ...................................  1.50% of the taxable income       1.50% effective overall tax rate
Over $  60725 but not over $ 121451    $    911, plus  3.00% of excess over $  60725     2.00% effective overall tax rate(computed on tax on middle of income range)
Over $ 121451 but not over $ 151813    $   2733, plus  5.00% of excess over $ 121451     2.56% effective overall tax rate(computed on tax on middle of income range)
Over $ 151813 but not over $ 212538    $   4251, plus  6.00% of excess over $ 151813     3.33% effective overall tax rate(computed on tax on middle of income range)
Over $ 212538 but not over $ 242901    $   7894, plus  7.00% of excess over $ 212538     3.93% effective overall tax rate(computed on tax on middle of income range)
Over $ 242901 but not over $ 273264    $  10020, plus  8.00% of excess over $ 242901     4.35% effective overall tax rate(computed on tax on middle of income range)
Over $ 273264 but not over $ 303626    $  12449, plus  9.00% of excess over $ 273264     4.79% effective overall tax rate(computed on tax on middle of income range)
Over $ 303626 but not over $ 333989    $  15181, plus 10.00% of excess over $ 303626     5.24% effective overall tax rate(computed on tax on middle of income range)
Over $ 333989 but not over $ 364352    $  18218, plus 11.00% of excess over $ 333989     5.70% effective overall tax rate(computed on tax on middle of income range)
Over $ 364352 but not over $ 425077    $  21557, plus 12.00% of excess over $ 364352     6.38% effective overall tax rate(computed on tax on middle of income range)
Over $ 425077 but not over $ 485802    $  28844, plus 13.00% of excess over $ 425077     7.20% effective overall tax rate(computed on tax on middle of income range)
Over $ 485802 but not over $ 546527    $  36739, plus 14.00% of excess over $ 485802     7.94% effective overall tax rate(computed on tax on middle of income range)
Over $ 546527 but not over $ 607253    $  45240, plus 15.00% of excess over $ 546527     8.63% effective overall tax rate(computed on tax on middle of income range)
Over $ 607253 but not over $ 667978    $  54349, plus 16.00% of excess over $ 607253     9.29% effective overall tax rate(computed on tax on middle of income range)
Over $ 667978 but not over $ 728703    $  64065, plus 17.00% of excess over $ 667978     9.91% effective overall tax rate(computed on tax on middle of income range)
Over $ 728703 but not over $ 789428    $  74388, plus 18.00% of excess over $ 728703    10.52% effective overall tax rate(computed on tax on middle of income range)
Over $ 789428 but not over $ 850154    $  85319, plus 19.00% of excess over $ 789428    11.11% effective overall tax rate(computed on tax on middle of income range)
Over $ 850154 but not over $ 910879    $  96857, plus 20.00% of excess over $ 850154    11.69% effective overall tax rate(computed on tax on middle of income range)
Over $ 910879 but not over $ 971604    $ 109002, plus 21.00% of excess over $ 910879    12.26% effective overall tax rate(computed on tax on middle of income range)
Over $ 971604 but not over $1062692    $ 121754, plus 22.00% of excess over $ 971604    12.96% effective overall tax rate(computed on tax on middle of income range)
Over $1062692 but not over $1214505    $ 141793, plus 23.00% of excess over $1062692    13.99% effective overall tax rate(computed on tax on middle of income range)
Over $1214505 but not over $1518132    $ 176711, plus 24.00% of excess over $1214505    15.60% effective overall tax rate(computed on tax on middle of income range)
Over $1518132 ........................ $ 249581, plus 25.00% of excess over $1518132    16.44% <=> 25.00% effective overall tax rate as income goes to infinity
                                                                              1931     1954                                               using exact decimal values of taxes (not integers)
                                                                              ____     ____
taxable income in 2013 dollars $     10000     tax due in  2013 dollars $      150     2000     percentage of taxable income=  1.50%    for tax year 1931  percentage of 1954 taxes   7.50%
taxable income in 2013 dollars $     20000     tax due in  2013 dollars $      300     4057     percentage of taxable income=  1.50%    for tax year 1931  percentage of 1954 taxes   7.39%
taxable income in 2013 dollars $     30000     tax due in  2013 dollars $      450     6257     percentage of taxable income=  1.50%    for tax year 1931  percentage of 1954 taxes   7.19%
taxable income in 2013 dollars $     40000     tax due in  2013 dollars $      600     8684     percentage of taxable income=  1.50%    for tax year 1931  percentage of 1954 taxes   6.91%
taxable income in 2013 dollars $     50000     tax due in  2013 dollars $      750    11284     percentage of taxable income=  1.50%    for tax year 1931  percentage of 1954 taxes   6.65%
taxable income in 2013 dollars $     60000     tax due in  2013 dollars $      900    14226     percentage of taxable income=  1.50%    for tax year 1931  percentage of 1954 taxes   6.33%
taxable income in 2013 dollars $     70000     tax due in  2013 dollars $     1189    17280     percentage of taxable income=  1.70%    for tax year 1931  percentage of 1954 taxes   6.88%
taxable income in 2013 dollars $     80000     tax due in  2013 dollars $     1489    20680     percentage of taxable income=  1.86%    for tax year 1931  percentage of 1954 taxes   7.20%
taxable income in 2013 dollars $     90000     tax due in  2013 dollars $     1789    24249     percentage of taxable income=  1.99%    for tax year 1931  percentage of 1954 taxes   7.38%
taxable income in 2013 dollars $    100000     tax due in  2013 dollars $     2089    28049     percentage of taxable income=  2.09%    for tax year 1931  percentage of 1954 taxes   7.45%
taxable income in 2013 dollars $    150000     tax due in  2013 dollars $     4160    50981     percentage of taxable income=  2.77%    for tax year 1931  percentage of 1954 taxes   8.16%
taxable income in 2013 dollars $    200000     tax due in  2013 dollars $     7142    78540     percentage of taxable income=  3.57%    for tax year 1931  percentage of 1954 taxes   9.09%
taxable income in 2013 dollars $    250000     tax due in  2013 dollars $    10588   108849     percentage of taxable income=  4.24%    for tax year 1931  percentage of 1954 taxes   9.73%
taxable income in 2013 dollars $    300000     tax due in  2013 dollars $    14855   140614     percentage of taxable income=  4.95%    for tax year 1931  percentage of 1954 taxes  10.56%
taxable income in 2013 dollars $    350000     tax due in  2013 dollars $    19979   174075     percentage of taxable income=  5.71%    for tax year 1931  percentage of 1954 taxes  11.48%
taxable income in 2013 dollars $    400000     tax due in  2013 dollars $    25835   209251     percentage of taxable income=  6.46%    for tax year 1931  percentage of 1954 taxes  12.35%
taxable income in 2013 dollars $    450000     tax due in  2013 dollars $    32085   245884     percentage of taxable income=  7.13%    for tax year 1931  percentage of 1954 taxes  13.05%
taxable income in 2013 dollars $    500000     tax due in  2013 dollars $    38726   283384     percentage of taxable income=  7.75%    for tax year 1931  percentage of 1954 taxes  13.67%
taxable income in 2013 dollars $    600000     tax due in  2013 dollars $    53261   360943     percentage of taxable income=  8.88%    for tax year 1931  percentage of 1954 taxes  14.76%
taxable income in 2013 dollars $    700000     tax due in  2013 dollars $    69509   442341     percentage of taxable income=  9.93%    for tax year 1931  percentage of 1954 taxes  15.71%
taxable income in 2013 dollars $    800000     tax due in  2013 dollars $    87328   527179     percentage of taxable income= 10.92%    for tax year 1931  percentage of 1954 taxes  16.57%
taxable income in 2013 dollars $    900000     tax due in  2013 dollars $   106826   615023     percentage of taxable income= 11.87%    for tax year 1931  percentage of 1954 taxes  17.37%
taxable income in 2013 dollars $   1000000     tax due in  2013 dollars $   128001   704023     percentage of taxable income= 12.80%    for tax year 1931  percentage of 1954 taxes  18.18%

1932 tax rate schedule with ORIGINAL dollar figures(for SINGLE taxpayer)
Historical data for the marginal rates was obtained at the Tax Foundation website at [U.S. Federal Individual Income Tax Rates History, 1913-2011 (Nominal and Inflation-Adjusted Brackets)]
Computation of the actual taxes due and the effective overall tax rate at each level were done by Jeff Sagarin.

Not over $   4000 ...................................  4.00% of the taxable income       4.00% effective overall tax rate
Over $   4000 but not over $   6000    $    160, plus  8.00% of excess over $   4000     4.80% effective overall tax rate(computed on tax on middle of income range)
Over $   6000 but not over $  10000    $    320, plus  9.00% of excess over $   6000     6.25% effective overall tax rate(computed on tax on middle of income range)
Over $  10000 but not over $  12000    $    680, plus 10.00% of excess over $  10000     7.09% effective overall tax rate(computed on tax on middle of income range)
Over $  12000 but not over $  14000    $    880, plus 11.00% of excess over $  12000     7.62% effective overall tax rate(computed on tax on middle of income range)
Over $  14000 but not over $  16000    $   1100, plus 12.00% of excess over $  14000     8.13% effective overall tax rate(computed on tax on middle of income range)
Over $  16000 but not over $  18000    $   1340, plus 13.00% of excess over $  16000     8.65% effective overall tax rate(computed on tax on middle of income range)
Over $  18000 but not over $  20000    $   1600, plus 14.00% of excess over $  18000     9.16% effective overall tax rate(computed on tax on middle of income range)
Over $  20000 but not over $  22000    $   1880, plus 16.00% of excess over $  20000     9.71% effective overall tax rate(computed on tax on middle of income range)
Over $  22000 but not over $  24000    $   2200, plus 17.00% of excess over $  22000    10.30% effective overall tax rate(computed on tax on middle of income range)
Over $  24000 but not over $  26000    $   2540, plus 18.00% of excess over $  24000    10.88% effective overall tax rate(computed on tax on middle of income range)
Over $  26000 but not over $  28000    $   2900, plus 19.00% of excess over $  26000    11.44% effective overall tax rate(computed on tax on middle of income range)
Over $  28000 but not over $  30000    $   3280, plus 20.00% of excess over $  28000    12.00% effective overall tax rate(computed on tax on middle of income range)
Over $  30000 but not over $  32000    $   3680, plus 21.00% of excess over $  30000    12.55% effective overall tax rate(computed on tax on middle of income range)
Over $  32000 but not over $  36000    $   4100, plus 23.00% of excess over $  32000    13.41% effective overall tax rate(computed on tax on middle of income range)
Over $  36000 but not over $  38000    $   5020, plus 24.00% of excess over $  36000    14.22% effective overall tax rate(computed on tax on middle of income range)
Over $  38000 but not over $  40000    $   5500, plus 25.00% of excess over $  38000    14.74% effective overall tax rate(computed on tax on middle of income range)
Over $  40000 but not over $  42000    $   6000, plus 26.00% of excess over $  40000    15.27% effective overall tax rate(computed on tax on middle of income range)
Over $  42000 but not over $  44000    $   6520, plus 27.00% of excess over $  42000    15.79% effective overall tax rate(computed on tax on middle of income range)
Over $  44000 but not over $  46000    $   7060, plus 28.00% of excess over $  44000    16.31% effective overall tax rate(computed on tax on middle of income range)
Over $  46000 but not over $  48000    $   7620, plus 29.00% of excess over $  46000    16.83% effective overall tax rate(computed on tax on middle of income range)
Over $  48000 but not over $  50000    $   8200, plus 30.00% of excess over $  48000    17.35% effective overall tax rate(computed on tax on middle of income range)
Over $  50000 but not over $  52000    $   8800, plus 31.00% of excess over $  50000    17.86% effective overall tax rate(computed on tax on middle of income range)
Over $  52000 but not over $  54000    $   9420, plus 32.00% of excess over $  52000    18.38% effective overall tax rate(computed on tax on middle of income range)
Over $  54000 but not over $  56000    $  10060, plus 33.00% of excess over $  54000    18.89% effective overall tax rate(computed on tax on middle of income range)
Over $  56000 but not over $  58000    $  10720, plus 34.00% of excess over $  56000    19.40% effective overall tax rate(computed on tax on middle of income range)
Over $  58000 but not over $  60000    $  11400, plus 35.00% of excess over $  58000    19.92% effective overall tax rate(computed on tax on middle of income range)
Over $  60000 but not over $  62000    $  12100, plus 36.00% of excess over $  60000    20.43% effective overall tax rate(computed on tax on middle of income range)
Over $  62000 but not over $  64000    $  12820, plus 37.00% of excess over $  62000    20.94% effective overall tax rate(computed on tax on middle of income range)
Over $  64000 but not over $  66000    $  13560, plus 38.00% of excess over $  64000    21.45% effective overall tax rate(computed on tax on middle of income range)
Over $  66000 but not over $  68000    $  14320, plus 39.00% of excess over $  66000    21.96% effective overall tax rate(computed on tax on middle of income range)
Over $  68000 but not over $  70000    $  15100, plus 40.00% of excess over $  68000    22.46% effective overall tax rate(computed on tax on middle of income range)
Over $  70000 but not over $  72000    $  15900, plus 41.00% of excess over $  70000    22.97% effective overall tax rate(computed on tax on middle of income range)
Over $  72000 but not over $  74000    $  16720, plus 42.00% of excess over $  72000    23.48% effective overall tax rate(computed on tax on middle of income range)
Over $  74000 but not over $  76000    $  17560, plus 43.00% of excess over $  74000    23.99% effective overall tax rate(computed on tax on middle of income range)
Over $  76000 but not over $  78000    $  18420, plus 44.00% of excess over $  76000    24.49% effective overall tax rate(computed on tax on middle of income range)
Over $  78000 but not over $  80000    $  19300, plus 45.00% of excess over $  78000    25.00% effective overall tax rate(computed on tax on middle of income range)
Over $  80000 but not over $  82000    $  20200, plus 46.00% of excess over $  80000    25.51% effective overall tax rate(computed on tax on middle of income range)
Over $  82000 but not over $  84000    $  21120, plus 47.00% of excess over $  82000    26.01% effective overall tax rate(computed on tax on middle of income range)
Over $  84000 but not over $  86000    $  22060, plus 48.00% of excess over $  84000    26.52% effective overall tax rate(computed on tax on middle of income range)
Over $  86000 but not over $  88000    $  23020, plus 49.00% of excess over $  86000    27.02% effective overall tax rate(computed on tax on middle of income range)
Over $  88000 but not over $  90000    $  24000, plus 50.00% of excess over $  88000    27.53% effective overall tax rate(computed on tax on middle of income range)
Over $  90000 but not over $  92000    $  25000, plus 51.00% of excess over $  90000    28.03% effective overall tax rate(computed on tax on middle of income range)
Over $  92000 but not over $  94000    $  26020, plus 52.00% of excess over $  92000    28.54% effective overall tax rate(computed on tax on middle of income range)
Over $  94000 but not over $  96000    $  27060, plus 53.00% of excess over $  94000    29.04% effective overall tax rate(computed on tax on middle of income range)
Over $  96000 but not over $  98000    $  28120, plus 54.00% of excess over $  96000    29.55% effective overall tax rate(computed on tax on middle of income range)
Over $  98000 but not over $ 100000    $  29200, plus 55.00% of excess over $  98000    30.05% effective overall tax rate(computed on tax on middle of income range)
Over $ 100000 but not over $ 150000    $  30300, plus 56.00% of excess over $ 100000    35.44% effective overall tax rate(computed on tax on middle of income range)
Over $ 150000 but not over $ 200000    $  58300, plus 57.00% of excess over $ 150000    41.46% effective overall tax rate(computed on tax on middle of income range)
Over $ 200000 but not over $ 300000    $  86800, plus 58.00% of excess over $ 200000    46.32% effective overall tax rate(computed on tax on middle of income range)
Over $ 300000 but not over $ 400000    $ 144800, plus 59.00% of excess over $ 300000    49.80% effective overall tax rate(computed on tax on middle of income range)
Over $ 400000 but not over $ 500000    $ 203800, plus 60.00% of excess over $ 400000    51.96% effective overall tax rate(computed on tax on middle of income range)
Over $ 500000 but not over $ 750000    $ 263800, plus 61.00% of excess over $ 500000    54.41% effective overall tax rate(computed on tax on middle of income range)
Over $ 750000 but not over $1000000    $ 416300, plus 62.00% of excess over $ 750000    56.43% effective overall tax rate(computed on tax on middle of income range)
Over $1000000 ........................ $ 571300, plus 63.00% of excess over $1000000    57.13% <=> 63.00% effective overall tax rate as income goes to infinity
1932 tax rate schedule with figures INFLATION-ADJUSTED to 2013 dollars(for SINGLE taxpayer) ... the multiplier is 16.843503650 based on the average of the last 12 monthly figures through and including April 2013 released in mid-May 2013)
Inflation multiplier was determined from Bureau of Labor Statistics at [CPI Inflation Calculator | Historical Consumer Price Index]
Computation of the actual taxes due and the effective overall tax rate at each level were done by Jeff Sagarin.

Not over $  67374 ...................................  4.00% of the taxable income       4.00% effective overall tax rate
Over $  67374 but not over $ 101061    $   2695, plus  8.00% of excess over $  67374     4.80% effective overall tax rate(computed on tax on middle of income range)
Over $ 101061 but not over $ 168435    $   5390, plus  9.00% of excess over $ 101061     6.25% effective overall tax rate(computed on tax on middle of income range)
Over $ 168435 but not over $ 202122    $  11454, plus 10.00% of excess over $ 168435     7.09% effective overall tax rate(computed on tax on middle of income range)
Over $ 202122 but not over $ 235809    $  14822, plus 11.00% of excess over $ 202122     7.62% effective overall tax rate(computed on tax on middle of income range)
Over $ 235809 but not over $ 269496    $  18528, plus 12.00% of excess over $ 235809     8.13% effective overall tax rate(computed on tax on middle of income range)
Over $ 269496 but not over $ 303183    $  22570, plus 13.00% of excess over $ 269496     8.65% effective overall tax rate(computed on tax on middle of income range)
Over $ 303183 but not over $ 336870    $  26950, plus 14.00% of excess over $ 303183     9.16% effective overall tax rate(computed on tax on middle of income range)
Over $ 336870 but not over $ 370557    $  31666, plus 16.00% of excess over $ 336870     9.71% effective overall tax rate(computed on tax on middle of income range)
Over $ 370557 but not over $ 404244    $  37056, plus 17.00% of excess over $ 370557    10.30% effective overall tax rate(computed on tax on middle of income range)
Over $ 404244 but not over $ 437931    $  42782, plus 18.00% of excess over $ 404244    10.88% effective overall tax rate(computed on tax on middle of income range)
Over $ 437931 but not over $ 471618    $  48846, plus 19.00% of excess over $ 437931    11.44% effective overall tax rate(computed on tax on middle of income range)
Over $ 471618 but not over $ 505305    $  55247, plus 20.00% of excess over $ 471618    12.00% effective overall tax rate(computed on tax on middle of income range)
Over $ 505305 but not over $ 538992    $  61984, plus 21.00% of excess over $ 505305    12.55% effective overall tax rate(computed on tax on middle of income range)
Over $ 538992 but not over $ 606366    $  69058, plus 23.00% of excess over $ 538992    13.41% effective overall tax rate(computed on tax on middle of income range)
Over $ 606366 but not over $ 640053    $  84554, plus 24.00% of excess over $ 606366    14.22% effective overall tax rate(computed on tax on middle of income range)
Over $ 640053 but not over $ 673740    $  92639, plus 25.00% of excess over $ 640053    14.74% effective overall tax rate(computed on tax on middle of income range)
Over $ 673740 but not over $ 707427    $ 101061, plus 26.00% of excess over $ 673740    15.27% effective overall tax rate(computed on tax on middle of income range)
Over $ 707427 but not over $ 741114    $ 109820, plus 27.00% of excess over $ 707427    15.79% effective overall tax rate(computed on tax on middle of income range)
Over $ 741114 but not over $ 774801    $ 118915, plus 28.00% of excess over $ 741114    16.31% effective overall tax rate(computed on tax on middle of income range)
Over $ 774801 but not over $ 808488    $ 128347, plus 29.00% of excess over $ 774801    16.83% effective overall tax rate(computed on tax on middle of income range)
Over $ 808488 but not over $ 842175    $ 138117, plus 30.00% of excess over $ 808488    17.35% effective overall tax rate(computed on tax on middle of income range)
Over $ 842175 but not over $ 875862    $ 148223, plus 31.00% of excess over $ 842175    17.86% effective overall tax rate(computed on tax on middle of income range)
Over $ 875862 but not over $ 909549    $ 158666, plus 32.00% of excess over $ 875862    18.38% effective overall tax rate(computed on tax on middle of income range)
Over $ 909549 but not over $ 943236    $ 169446, plus 33.00% of excess over $ 909549    18.89% effective overall tax rate(computed on tax on middle of income range)
Over $ 943236 but not over $ 976923    $ 180562, plus 34.00% of excess over $ 943236    19.40% effective overall tax rate(computed on tax on middle of income range)
Over $ 976923 but not over $1010610    $ 192016, plus 35.00% of excess over $ 976923    19.92% effective overall tax rate(computed on tax on middle of income range)
Over $1010610 but not over $1044297    $ 203806, plus 36.00% of excess over $1010610    20.43% effective overall tax rate(computed on tax on middle of income range)
Over $1044297 but not over $1077984    $ 215934, plus 37.00% of excess over $1044297    20.94% effective overall tax rate(computed on tax on middle of income range)
Over $1077984 but not over $1111671    $ 228398, plus 38.00% of excess over $1077984    21.45% effective overall tax rate(computed on tax on middle of income range)
Over $1111671 but not over $1145358    $ 241199, plus 39.00% of excess over $1111671    21.96% effective overall tax rate(computed on tax on middle of income range)
Over $1145358 but not over $1179045    $ 254337, plus 40.00% of excess over $1145358    22.46% effective overall tax rate(computed on tax on middle of income range)
Over $1179045 but not over $1212732    $ 267812, plus 41.00% of excess over $1179045    22.97% effective overall tax rate(computed on tax on middle of income range)
Over $1212732 but not over $1246419    $ 281623, plus 42.00% of excess over $1212732    23.48% effective overall tax rate(computed on tax on middle of income range)
Over $1246419 but not over $1280106    $ 295772, plus 43.00% of excess over $1246419    23.99% effective overall tax rate(computed on tax on middle of income range)
Over $1280106 but not over $1313793    $ 310257, plus 44.00% of excess over $1280106    24.49% effective overall tax rate(computed on tax on middle of income range)
Over $1313793 but not over $1347480    $ 325080, plus 45.00% of excess over $1313793    25.00% effective overall tax rate(computed on tax on middle of income range)
Over $1347480 but not over $1381167    $ 340239, plus 46.00% of excess over $1347480    25.51% effective overall tax rate(computed on tax on middle of income range)
Over $1381167 but not over $1414854    $ 355735, plus 47.00% of excess over $1381167    26.01% effective overall tax rate(computed on tax on middle of income range)
Over $1414854 but not over $1448541    $ 371568, plus 48.00% of excess over $1414854    26.52% effective overall tax rate(computed on tax on middle of income range)
Over $1448541 but not over $1482228    $ 387737, plus 49.00% of excess over $1448541    27.02% effective overall tax rate(computed on tax on middle of income range)
Over $1482228 but not over $1515915    $ 404244, plus 50.00% of excess over $1482228    27.53% effective overall tax rate(computed on tax on middle of income range)
Over $1515915 but not over $1549602    $ 421088, plus 51.00% of excess over $1515915    28.03% effective overall tax rate(computed on tax on middle of income range)
Over $1549602 but not over $1583289    $ 438268, plus 52.00% of excess over $1549602    28.54% effective overall tax rate(computed on tax on middle of income range)
Over $1583289 but not over $1616976    $ 455785, plus 53.00% of excess over $1583289    29.04% effective overall tax rate(computed on tax on middle of income range)
Over $1616976 but not over $1650663    $ 473639, plus 54.00% of excess over $1616976    29.55% effective overall tax rate(computed on tax on middle of income range)
Over $1650663 but not over $1684350    $ 491830, plus 55.00% of excess over $1650663    30.05% effective overall tax rate(computed on tax on middle of income range)
Over $1684350 but not over $2526526    $ 510358, plus 56.00% of excess over $1684350    35.44% effective overall tax rate(computed on tax on middle of income range)
Over $2526526 but not over $3368701    $ 981976, plus 57.00% of excess over $2526526    41.46% effective overall tax rate(computed on tax on middle of income range)
Over $3368701 but not over $5053051    $1462016, plus 58.00% of excess over $3368701    46.32% effective overall tax rate(computed on tax on middle of income range)
Over $5053051 but not over $6737401    $2438939, plus 59.00% of excess over $5053051    49.80% effective overall tax rate(computed on tax on middle of income range)
Over $6737401 but not over $8421752    $3432706, plus 60.00% of excess over $6737401    51.96% effective overall tax rate(computed on tax on middle of income range)
Over $8421752 but not over $12632628   $4443316, plus 61.00% of excess over $8421752    54.41% effective overall tax rate(computed on tax on middle of income range)
Over $12632628 but not over $16843504  $7011951, plus 62.00% of excess over $12632628   56.43% effective overall tax rate(computed on tax on middle of income range)
Over $16843504 ........................$9622694, plus 63.00% of excess over $16843504   57.13% <=> 63.00% effective overall tax rate as income goes to infinity
                                                                              1932     1954                                               using exact decimal values of taxes (not integers)
                                                                              ____     ____
taxable income in 2013 dollars $     10000     tax due in  2013 dollars $      400     2000     percentage of taxable income=  4.00%    for tax year 1932  percentage of 1954 taxes  20.00%
taxable income in 2013 dollars $     20000     tax due in  2013 dollars $      800     4057     percentage of taxable income=  4.00%    for tax year 1932  percentage of 1954 taxes  19.72%
taxable income in 2013 dollars $     30000     tax due in  2013 dollars $     1200     6257     percentage of taxable income=  4.00%    for tax year 1932  percentage of 1954 taxes  19.18%
taxable income in 2013 dollars $     40000     tax due in  2013 dollars $     1600     8684     percentage of taxable income=  4.00%    for tax year 1932  percentage of 1954 taxes  18.42%
taxable income in 2013 dollars $     50000     tax due in  2013 dollars $     2000    11284     percentage of taxable income=  4.00%    for tax year 1932  percentage of 1954 taxes  17.72%
taxable income in 2013 dollars $     60000     tax due in  2013 dollars $     2400    14226     percentage of taxable income=  4.00%    for tax year 1932  percentage of 1954 taxes  16.87%
taxable income in 2013 dollars $     70000     tax due in  2013 dollars $     2905    17280     percentage of taxable income=  4.15%    for tax year 1932  percentage of 1954 taxes  16.81%
taxable income in 2013 dollars $     80000     tax due in  2013 dollars $     3705    20680     percentage of taxable income=  4.63%    for tax year 1932  percentage of 1954 taxes  17.92%
taxable income in 2013 dollars $     90000     tax due in  2013 dollars $     4505    24249     percentage of taxable income=  5.01%    for tax year 1932  percentage of 1954 taxes  18.58%
taxable income in 2013 dollars $    100000     tax due in  2013 dollars $     5305    28049     percentage of taxable income=  5.31%    for tax year 1932  percentage of 1954 taxes  18.91%
taxable income in 2013 dollars $    150000     tax due in  2013 dollars $     9794    50981     percentage of taxable income=  6.53%    for tax year 1932  percentage of 1954 taxes  19.21%
taxable income in 2013 dollars $    200000     tax due in  2013 dollars $    14610    78540     percentage of taxable income=  7.31%    for tax year 1932  percentage of 1954 taxes  18.60%
taxable income in 2013 dollars $    250000     tax due in  2013 dollars $    20231   108849     percentage of taxable income=  8.09%    for tax year 1932  percentage of 1954 taxes  18.59%
taxable income in 2013 dollars $    300000     tax due in  2013 dollars $    26536   140614     percentage of taxable income=  8.85%    for tax year 1932  percentage of 1954 taxes  18.87%
taxable income in 2013 dollars $    350000     tax due in  2013 dollars $    33767   174075     percentage of taxable income=  9.65%    for tax year 1932  percentage of 1954 taxes  19.40%
taxable income in 2013 dollars $    400000     tax due in  2013 dollars $    42061   209251     percentage of taxable income= 10.52%    for tax year 1932  percentage of 1954 taxes  20.10%
taxable income in 2013 dollars $    450000     tax due in  2013 dollars $    51139   245884     percentage of taxable income= 11.36%    for tax year 1932  percentage of 1954 taxes  20.80%
taxable income in 2013 dollars $    500000     tax due in  2013 dollars $    60923   283384     percentage of taxable income= 12.18%    for tax year 1932  percentage of 1954 taxes  21.50%
taxable income in 2013 dollars $    600000     tax due in  2013 dollars $    83090   360943     percentage of taxable income= 13.85%    for tax year 1932  percentage of 1954 taxes  23.02%
taxable income in 2013 dollars $    700000     tax due in  2013 dollars $   107889   442341     percentage of taxable income= 15.41%    for tax year 1932  percentage of 1954 taxes  24.39%
taxable income in 2013 dollars $    800000     tax due in  2013 dollars $   135655   527179     percentage of taxable income= 16.96%    for tax year 1932  percentage of 1954 taxes  25.73%
taxable income in 2013 dollars $    900000     tax due in  2013 dollars $   166390   615023     percentage of taxable income= 18.49%    for tax year 1932  percentage of 1954 taxes  27.05%
taxable income in 2013 dollars $   1000000     tax due in  2013 dollars $   200093   704023     percentage of taxable income= 20.01%    for tax year 1932  percentage of 1954 taxes  28.42%

1933 tax rate schedule with ORIGINAL dollar figures(for SINGLE taxpayer)
Historical data for the marginal rates was obtained at the Tax Foundation website at [U.S. Federal Individual Income Tax Rates History, 1913-2011 (Nominal and Inflation-Adjusted Brackets)]
Computation of the actual taxes due and the effective overall tax rate at each level were done by Jeff Sagarin.

Not over $   4000 ...................................  4.00% of the taxable income       4.00% effective overall tax rate
Over $   4000 but not over $   6000    $    160, plus  8.00% of excess over $   4000     4.80% effective overall tax rate(computed on tax on middle of income range)
Over $   6000 but not over $  10000    $    320, plus  9.00% of excess over $   6000     6.25% effective overall tax rate(computed on tax on middle of income range)
Over $  10000 but not over $  12000    $    680, plus 10.00% of excess over $  10000     7.09% effective overall tax rate(computed on tax on middle of income range)
Over $  12000 but not over $  14000    $    880, plus 11.00% of excess over $  12000     7.62% effective overall tax rate(computed on tax on middle of income range)
Over $  14000 but not over $  16000    $   1100, plus 12.00% of excess over $  14000     8.13% effective overall tax rate(computed on tax on middle of income range)
Over $  16000 but not over $  18000    $   1340, plus 13.00% of excess over $  16000     8.65% effective overall tax rate(computed on tax on middle of income range)
Over $  18000 but not over $  20000    $   1600, plus 14.00% of excess over $  18000     9.16% effective overall tax rate(computed on tax on middle of income range)
Over $  20000 but not over $  22000    $   1880, plus 16.00% of excess over $  20000     9.71% effective overall tax rate(computed on tax on middle of income range)
Over $  22000 but not over $  24000    $   2200, plus 17.00% of excess over $  22000    10.30% effective overall tax rate(computed on tax on middle of income range)
Over $  24000 but not over $  26000    $   2540, plus 18.00% of excess over $  24000    10.88% effective overall tax rate(computed on tax on middle of income range)
Over $  26000 but not over $  28000    $   2900, plus 19.00% of excess over $  26000    11.44% effective overall tax rate(computed on tax on middle of income range)
Over $  28000 but not over $  30000    $   3280, plus 20.00% of excess over $  28000    12.00% effective overall tax rate(computed on tax on middle of income range)
Over $  30000 but not over $  32000    $   3680, plus 21.00% of excess over $  30000    12.55% effective overall tax rate(computed on tax on middle of income range)
Over $  32000 but not over $  36000    $   4100, plus 23.00% of excess over $  32000    13.41% effective overall tax rate(computed on tax on middle of income range)
Over $  36000 but not over $  38000    $   5020, plus 24.00% of excess over $  36000    14.22% effective overall tax rate(computed on tax on middle of income range)
Over $  38000 but not over $  40000    $   5500, plus 25.00% of excess over $  38000    14.74% effective overall tax rate(computed on tax on middle of income range)
Over $  40000 but not over $  42000    $   6000, plus 26.00% of excess over $  40000    15.27% effective overall tax rate(computed on tax on middle of income range)
Over $  42000 but not over $  44000    $   6520, plus 27.00% of excess over $  42000    15.79% effective overall tax rate(computed on tax on middle of income range)
Over $  44000 but not over $  46000    $   7060, plus 28.00% of excess over $  44000    16.31% effective overall tax rate(computed on tax on middle of income range)
Over $  46000 but not over $  48000    $   7620, plus 29.00% of excess over $  46000    16.83% effective overall tax rate(computed on tax on middle of income range)
Over $  48000 but not over $  50000    $   8200, plus 30.00% of excess over $  48000    17.35% effective overall tax rate(computed on tax on middle of income range)
Over $  50000 but not over $  52000    $   8800, plus 31.00% of excess over $  50000    17.86% effective overall tax rate(computed on tax on middle of income range)
Over $  52000 but not over $  54000    $   9420, plus 32.00% of excess over $  52000    18.38% effective overall tax rate(computed on tax on middle of income range)
Over $  54000 but not over $  56000    $  10060, plus 33.00% of excess over $  54000    18.89% effective overall tax rate(computed on tax on middle of income range)
Over $  56000 but not over $  58000    $  10720, plus 34.00% of excess over $  56000    19.40% effective overall tax rate(computed on tax on middle of income range)
Over $  58000 but not over $  60000    $  11400, plus 35.00% of excess over $  58000    19.92% effective overall tax rate(computed on tax on middle of income range)
Over $  60000 but not over $  62000    $  12100, plus 36.00% of excess over $  60000    20.43% effective overall tax rate(computed on tax on middle of income range)
Over $  62000 but not over $  64000    $  12820, plus 37.00% of excess over $  62000    20.94% effective overall tax rate(computed on tax on middle of income range)
Over $  64000 but not over $  66000    $  13560, plus 38.00% of excess over $  64000    21.45% effective overall tax rate(computed on tax on middle of income range)
Over $  66000 but not over $  68000    $  14320, plus 39.00% of excess over $  66000    21.96% effective overall tax rate(computed on tax on middle of income range)
Over $  68000 but not over $  70000    $  15100, plus 40.00% of excess over $  68000    22.46% effective overall tax rate(computed on tax on middle of income range)
Over $  70000 but not over $  72000    $  15900, plus 41.00% of excess over $  70000    22.97% effective overall tax rate(computed on tax on middle of income range)
Over $  72000 but not over $  74000    $  16720, plus 42.00% of excess over $  72000    23.48% effective overall tax rate(computed on tax on middle of income range)
Over $  74000 but not over $  76000    $  17560, plus 43.00% of excess over $  74000    23.99% effective overall tax rate(computed on tax on middle of income range)
Over $  76000 but not over $  78000    $  18420, plus 44.00% of excess over $  76000    24.49% effective overall tax rate(computed on tax on middle of income range)
Over $  78000 but not over $  80000    $  19300, plus 45.00% of excess over $  78000    25.00% effective overall tax rate(computed on tax on middle of income range)
Over $  80000 but not over $  82000    $  20200, plus 46.00% of excess over $  80000    25.51% effective overall tax rate(computed on tax on middle of income range)
Over $  82000 but not over $  84000    $  21120, plus 47.00% of excess over $  82000    26.01% effective overall tax rate(computed on tax on middle of income range)
Over $  84000 but not over $  86000    $  22060, plus 48.00% of excess over $  84000    26.52% effective overall tax rate(computed on tax on middle of income range)
Over $  86000 but not over $  88000    $  23020, plus 49.00% of excess over $  86000    27.02% effective overall tax rate(computed on tax on middle of income range)
Over $  88000 but not over $  90000    $  24000, plus 50.00% of excess over $  88000    27.53% effective overall tax rate(computed on tax on middle of income range)
Over $  90000 but not over $  92000    $  25000, plus 51.00% of excess over $  90000    28.03% effective overall tax rate(computed on tax on middle of income range)
Over $  92000 but not over $  94000    $  26020, plus 52.00% of excess over $  92000    28.54% effective overall tax rate(computed on tax on middle of income range)
Over $  94000 but not over $  96000    $  27060, plus 53.00% of excess over $  94000    29.04% effective overall tax rate(computed on tax on middle of income range)
Over $  96000 but not over $  98000    $  28120, plus 54.00% of excess over $  96000    29.55% effective overall tax rate(computed on tax on middle of income range)
Over $  98000 but not over $ 100000    $  29200, plus 55.00% of excess over $  98000    30.05% effective overall tax rate(computed on tax on middle of income range)
Over $ 100000 but not over $ 150000    $  30300, plus 56.00% of excess over $ 100000    35.44% effective overall tax rate(computed on tax on middle of income range)
Over $ 150000 but not over $ 200000    $  58300, plus 57.00% of excess over $ 150000    41.46% effective overall tax rate(computed on tax on middle of income range)
Over $ 200000 but not over $ 300000    $  86800, plus 58.00% of excess over $ 200000    46.32% effective overall tax rate(computed on tax on middle of income range)
Over $ 300000 but not over $ 400000    $ 144800, plus 59.00% of excess over $ 300000    49.80% effective overall tax rate(computed on tax on middle of income range)
Over $ 400000 but not over $ 500000    $ 203800, plus 60.00% of excess over $ 400000    51.96% effective overall tax rate(computed on tax on middle of income range)
Over $ 500000 but not over $ 750000    $ 263800, plus 61.00% of excess over $ 500000    54.41% effective overall tax rate(computed on tax on middle of income range)
Over $ 750000 but not over $1000000    $ 416300, plus 62.00% of excess over $ 750000    56.43% effective overall tax rate(computed on tax on middle of income range)
Over $1000000 ........................ $ 571300, plus 63.00% of excess over $1000000    57.13% <=> 63.00% effective overall tax rate as income goes to infinity
1933 tax rate schedule with figures INFLATION-ADJUSTED to 2013 dollars(for SINGLE taxpayer) ... the multiplier is 17.750461538 based on the average of the last 12 monthly figures through and including April 2013 released in mid-May 2013)
Inflation multiplier was determined from Bureau of Labor Statistics at [CPI Inflation Calculator | Historical Consumer Price Index]
Computation of the actual taxes due and the effective overall tax rate at each level were done by Jeff Sagarin.

Not over $  71002 ...................................  4.00% of the taxable income       4.00% effective overall tax rate
Over $  71002 but not over $ 106503    $   2840, plus  8.00% of excess over $  71002     4.80% effective overall tax rate(computed on tax on middle of income range)
Over $ 106503 but not over $ 177505    $   5680, plus  9.00% of excess over $ 106503     6.25% effective overall tax rate(computed on tax on middle of income range)
Over $ 177505 but not over $ 213006    $  12070, plus 10.00% of excess over $ 177505     7.09% effective overall tax rate(computed on tax on middle of income range)
Over $ 213006 but not over $ 248506    $  15620, plus 11.00% of excess over $ 213006     7.62% effective overall tax rate(computed on tax on middle of income range)
Over $ 248506 but not over $ 284007    $  19526, plus 12.00% of excess over $ 248506     8.13% effective overall tax rate(computed on tax on middle of income range)
Over $ 284007 but not over $ 319508    $  23786, plus 13.00% of excess over $ 284007     8.65% effective overall tax rate(computed on tax on middle of income range)
Over $ 319508 but not over $ 355009    $  28401, plus 14.00% of excess over $ 319508     9.16% effective overall tax rate(computed on tax on middle of income range)
Over $ 355009 but not over $ 390510    $  33371, plus 16.00% of excess over $ 355009     9.71% effective overall tax rate(computed on tax on middle of income range)
Over $ 390510 but not over $ 426011    $  39051, plus 17.00% of excess over $ 390510    10.30% effective overall tax rate(computed on tax on middle of income range)
Over $ 426011 but not over $ 461512    $  45086, plus 18.00% of excess over $ 426011    10.88% effective overall tax rate(computed on tax on middle of income range)
Over $ 461512 but not over $ 497013    $  51476, plus 19.00% of excess over $ 461512    11.44% effective overall tax rate(computed on tax on middle of income range)
Over $ 497013 but not over $ 532514    $  58222, plus 20.00% of excess over $ 497013    12.00% effective overall tax rate(computed on tax on middle of income range)
Over $ 532514 but not over $ 568015    $  65322, plus 21.00% of excess over $ 532514    12.55% effective overall tax rate(computed on tax on middle of income range)
Over $ 568015 but not over $ 639017    $  72777, plus 23.00% of excess over $ 568015    13.41% effective overall tax rate(computed on tax on middle of income range)
Over $ 639017 but not over $ 674518    $  89107, plus 24.00% of excess over $ 639017    14.22% effective overall tax rate(computed on tax on middle of income range)
Over $ 674518 but not over $ 710018    $  97628, plus 25.00% of excess over $ 674518    14.74% effective overall tax rate(computed on tax on middle of income range)
Over $ 710018 but not over $ 745519    $ 106503, plus 26.00% of excess over $ 710018    15.27% effective overall tax rate(computed on tax on middle of income range)
Over $ 745519 but not over $ 781020    $ 115733, plus 27.00% of excess over $ 745519    15.79% effective overall tax rate(computed on tax on middle of income range)
Over $ 781020 but not over $ 816521    $ 125318, plus 28.00% of excess over $ 781020    16.31% effective overall tax rate(computed on tax on middle of income range)
Over $ 816521 but not over $ 852022    $ 135259, plus 29.00% of excess over $ 816521    16.83% effective overall tax rate(computed on tax on middle of income range)
Over $ 852022 but not over $ 887523    $ 145554, plus 30.00% of excess over $ 852022    17.35% effective overall tax rate(computed on tax on middle of income range)
Over $ 887523 but not over $ 923024    $ 156204, plus 31.00% of excess over $ 887523    17.86% effective overall tax rate(computed on tax on middle of income range)
Over $ 923024 but not over $ 958525    $ 167209, plus 32.00% of excess over $ 923024    18.38% effective overall tax rate(computed on tax on middle of income range)
Over $ 958525 but not over $ 994026    $ 178570, plus 33.00% of excess over $ 958525    18.89% effective overall tax rate(computed on tax on middle of income range)
Over $ 994026 but not over $1029527    $ 190285, plus 34.00% of excess over $ 994026    19.40% effective overall tax rate(computed on tax on middle of income range)
Over $1029527 but not over $1065028    $ 202355, plus 35.00% of excess over $1029527    19.92% effective overall tax rate(computed on tax on middle of income range)
Over $1065028 but not over $1100529    $ 214781, plus 36.00% of excess over $1065028    20.43% effective overall tax rate(computed on tax on middle of income range)
Over $1100529 but not over $1136030    $ 227561, plus 37.00% of excess over $1100529    20.94% effective overall tax rate(computed on tax on middle of income range)
Over $1136030 but not over $1171530    $ 240696, plus 38.00% of excess over $1136030    21.45% effective overall tax rate(computed on tax on middle of income range)
Over $1171530 but not over $1207031    $ 254187, plus 39.00% of excess over $1171530    21.96% effective overall tax rate(computed on tax on middle of income range)
Over $1207031 but not over $1242532    $ 268032, plus 40.00% of excess over $1207031    22.46% effective overall tax rate(computed on tax on middle of income range)
Over $1242532 but not over $1278033    $ 282232, plus 41.00% of excess over $1242532    22.97% effective overall tax rate(computed on tax on middle of income range)
Over $1278033 but not over $1313534    $ 296788, plus 42.00% of excess over $1278033    23.48% effective overall tax rate(computed on tax on middle of income range)
Over $1313534 but not over $1349035    $ 311698, plus 43.00% of excess over $1313534    23.99% effective overall tax rate(computed on tax on middle of income range)
Over $1349035 but not over $1384536    $ 326964, plus 44.00% of excess over $1349035    24.49% effective overall tax rate(computed on tax on middle of income range)
Over $1384536 but not over $1420037    $ 342584, plus 45.00% of excess over $1384536    25.00% effective overall tax rate(computed on tax on middle of income range)
Over $1420037 but not over $1455538    $ 358559, plus 46.00% of excess over $1420037    25.51% effective overall tax rate(computed on tax on middle of income range)
Over $1455538 but not over $1491039    $ 374890, plus 47.00% of excess over $1455538    26.01% effective overall tax rate(computed on tax on middle of income range)
Over $1491039 but not over $1526540    $ 391575, plus 48.00% of excess over $1491039    26.52% effective overall tax rate(computed on tax on middle of income range)
Over $1526540 but not over $1562041    $ 408616, plus 49.00% of excess over $1526540    27.02% effective overall tax rate(computed on tax on middle of income range)
Over $1562041 but not over $1597542    $ 426011, plus 50.00% of excess over $1562041    27.53% effective overall tax rate(computed on tax on middle of income range)
Over $1597542 but not over $1633042    $ 443762, plus 51.00% of excess over $1597542    28.03% effective overall tax rate(computed on tax on middle of income range)
Over $1633042 but not over $1668543    $ 461867, plus 52.00% of excess over $1633042    28.54% effective overall tax rate(computed on tax on middle of income range)
Over $1668543 but not over $1704044    $ 480327, plus 53.00% of excess over $1668543    29.04% effective overall tax rate(computed on tax on middle of income range)
Over $1704044 but not over $1739545    $ 499143, plus 54.00% of excess over $1704044    29.55% effective overall tax rate(computed on tax on middle of income range)
Over $1739545 but not over $1775046    $ 518313, plus 55.00% of excess over $1739545    30.05% effective overall tax rate(computed on tax on middle of income range)
Over $1775046 but not over $2662569    $ 537839, plus 56.00% of excess over $1775046    35.44% effective overall tax rate(computed on tax on middle of income range)
Over $2662569 but not over $3550092    $1034852, plus 57.00% of excess over $2662569    41.46% effective overall tax rate(computed on tax on middle of income range)
Over $3550092 but not over $5325138    $1540740, plus 58.00% of excess over $3550092    46.32% effective overall tax rate(computed on tax on middle of income range)
Over $5325138 but not over $7100185    $2570267, plus 59.00% of excess over $5325138    49.80% effective overall tax rate(computed on tax on middle of income range)
Over $7100185 but not over $8875231    $3617544, plus 60.00% of excess over $7100185    51.96% effective overall tax rate(computed on tax on middle of income range)
Over $8875231 but not over $13312846   $4682572, plus 61.00% of excess over $8875231    54.41% effective overall tax rate(computed on tax on middle of income range)
Over $13312846 but not over $17750462  $7389517, plus 62.00% of excess over $13312846   56.43% effective overall tax rate(computed on tax on middle of income range)
Over $17750462 ........................$10140839, plus 63.00% of excess over $17750462  57.13% <=> 63.00% effective overall tax rate as income goes to infinity
                                                                              1933     1954                                               using exact decimal values of taxes (not integers)
                                                                              ____     ____
taxable income in 2013 dollars $     10000     tax due in  2013 dollars $      400     2000     percentage of taxable income=  4.00%    for tax year 1933  percentage of 1954 taxes  20.00%
taxable income in 2013 dollars $     20000     tax due in  2013 dollars $      800     4057     percentage of taxable income=  4.00%    for tax year 1933  percentage of 1954 taxes  19.72%
taxable income in 2013 dollars $     30000     tax due in  2013 dollars $     1200     6257     percentage of taxable income=  4.00%    for tax year 1933  percentage of 1954 taxes  19.18%
taxable income in 2013 dollars $     40000     tax due in  2013 dollars $     1600     8684     percentage of taxable income=  4.00%    for tax year 1933  percentage of 1954 taxes  18.42%
taxable income in 2013 dollars $     50000     tax due in  2013 dollars $     2000    11284     percentage of taxable income=  4.00%    for tax year 1933  percentage of 1954 taxes  17.72%
taxable income in 2013 dollars $     60000     tax due in  2013 dollars $     2400    14226     percentage of taxable income=  4.00%    for tax year 1933  percentage of 1954 taxes  16.87%
taxable income in 2013 dollars $     70000     tax due in  2013 dollars $     2800    17280     percentage of taxable income=  4.00%    for tax year 1933  percentage of 1954 taxes  16.20%
taxable income in 2013 dollars $     80000     tax due in  2013 dollars $     3560    20680     percentage of taxable income=  4.45%    for tax year 1933  percentage of 1954 taxes  17.21%
taxable income in 2013 dollars $     90000     tax due in  2013 dollars $     4360    24249     percentage of taxable income=  4.84%    for tax year 1933  percentage of 1954 taxes  17.98%
taxable income in 2013 dollars $    100000     tax due in  2013 dollars $     5160    28049     percentage of taxable income=  5.16%    for tax year 1933  percentage of 1954 taxes  18.40%
taxable income in 2013 dollars $    150000     tax due in  2013 dollars $     9595    50981     percentage of taxable income=  6.40%    for tax year 1933  percentage of 1954 taxes  18.82%
taxable income in 2013 dollars $    200000     tax due in  2013 dollars $    14320    78540     percentage of taxable income=  7.16%    for tax year 1933  percentage of 1954 taxes  18.23%
taxable income in 2013 dollars $    250000     tax due in  2013 dollars $    19705   108849     percentage of taxable income=  7.88%    for tax year 1933  percentage of 1954 taxes  18.10%
taxable income in 2013 dollars $    300000     tax due in  2013 dollars $    25865   140614     percentage of taxable income=  8.62%    for tax year 1933  percentage of 1954 taxes  18.39%
taxable income in 2013 dollars $    350000     tax due in  2013 dollars $    32670   174075     percentage of taxable income=  9.33%    for tax year 1933  percentage of 1954 taxes  18.77%
taxable income in 2013 dollars $    400000     tax due in  2013 dollars $    40664   209251     percentage of taxable income= 10.17%    for tax year 1933  percentage of 1954 taxes  19.43%
taxable income in 2013 dollars $    450000     tax due in  2013 dollars $    49404   245884     percentage of taxable income= 10.98%    for tax year 1933  percentage of 1954 taxes  20.09%
taxable income in 2013 dollars $    500000     tax due in  2013 dollars $    58819   283384     percentage of taxable income= 11.76%    for tax year 1933  percentage of 1954 taxes  20.76%
taxable income in 2013 dollars $    600000     tax due in  2013 dollars $    80133   360943     percentage of taxable income= 13.36%    for tax year 1933  percentage of 1954 taxes  22.20%
taxable income in 2013 dollars $    700000     tax due in  2013 dollars $   103998   442341     percentage of taxable income= 14.86%    for tax year 1933  percentage of 1954 taxes  23.51%
taxable income in 2013 dollars $    800000     tax due in  2013 dollars $   130633   527179     percentage of taxable income= 16.33%    for tax year 1933  percentage of 1954 taxes  24.78%
taxable income in 2013 dollars $    900000     tax due in  2013 dollars $   160072   615023     percentage of taxable income= 17.79%    for tax year 1933  percentage of 1954 taxes  26.03%
taxable income in 2013 dollars $   1000000     tax due in  2013 dollars $   192316   704023     percentage of taxable income= 19.23%    for tax year 1933  percentage of 1954 taxes  27.32%

1934 tax rate schedule with ORIGINAL dollar figures(for SINGLE taxpayer)
Historical data for the marginal rates was obtained at the Tax Foundation website at [U.S. Federal Individual Income Tax Rates History, 1913-2011 (Nominal and Inflation-Adjusted Brackets)]
Computation of the actual taxes due and the effective overall tax rate at each level were done by Jeff Sagarin.

Not over $   4000 ...................................  4.00% of the taxable income       4.00% effective overall tax rate
Over $   4000 but not over $   6000    $    160, plus  8.00% of excess over $   4000     4.80% effective overall tax rate(computed on tax on middle of income range)
Over $   6000 but not over $   8000    $    320, plus  9.00% of excess over $   6000     5.86% effective overall tax rate(computed on tax on middle of income range)
Over $   8000 but not over $  10000    $    500, plus 10.00% of excess over $   8000     6.67% effective overall tax rate(computed on tax on middle of income range)
Over $  10000 but not over $  12000    $    700, plus 11.00% of excess over $  10000     7.36% effective overall tax rate(computed on tax on middle of income range)
Over $  12000 but not over $  14000    $    920, plus 12.00% of excess over $  12000     8.00% effective overall tax rate(computed on tax on middle of income range)
Over $  14000 but not over $  16000    $   1160, plus 13.00% of excess over $  14000     8.60% effective overall tax rate(computed on tax on middle of income range)
Over $  16000 but not over $  18000    $   1420, plus 15.00% of excess over $  16000     9.24% effective overall tax rate(computed on tax on middle of income range)
Over $  18000 but not over $  20000    $   1720, plus 17.00% of excess over $  18000     9.95% effective overall tax rate(computed on tax on middle of income range)
Over $  20000 but not over $  22000    $   2060, plus 19.00% of excess over $  20000    10.71% effective overall tax rate(computed on tax on middle of income range)
Over $  22000 but not over $  26000    $   2440, plus 21.00% of excess over $  22000    11.92% effective overall tax rate(computed on tax on middle of income range)
Over $  26000 but not over $  32000    $   3280, plus 23.00% of excess over $  26000    13.69% effective overall tax rate(computed on tax on middle of income range)
Over $  32000 but not over $  38000    $   4660, plus 25.00% of excess over $  32000    15.46% effective overall tax rate(computed on tax on middle of income range)
Over $  38000 but not over $  44000    $   6160, plus 28.00% of excess over $  38000    17.07% effective overall tax rate(computed on tax on middle of income range)
Over $  44000 but not over $  50000    $   7840, plus 31.00% of excess over $  44000    18.66% effective overall tax rate(computed on tax on middle of income range)
Over $  50000 but not over $  56000    $   9700, plus 34.00% of excess over $  50000    20.23% effective overall tax rate(computed on tax on middle of income range)
Over $  56000 but not over $  62000    $  11740, plus 37.00% of excess over $  56000    21.78% effective overall tax rate(computed on tax on middle of income range)
Over $  62000 but not over $  68000    $  13960, plus 40.00% of excess over $  62000    23.32% effective overall tax rate(computed on tax on middle of income range)
Over $  68000 but not over $  74000    $  16360, plus 43.00% of excess over $  68000    24.86% effective overall tax rate(computed on tax on middle of income range)
Over $  74000 but not over $  80000    $  18940, plus 46.00% of excess over $  74000    26.39% effective overall tax rate(computed on tax on middle of income range)
Over $  80000 but not over $  90000    $  21700, plus 49.00% of excess over $  80000    28.41% effective overall tax rate(computed on tax on middle of income range)
Over $  90000 but not over $ 100000    $  26600, plus 54.00% of excess over $  90000    30.84% effective overall tax rate(computed on tax on middle of income range)
Over $ 100000 but not over $ 150000    $  32000, plus 56.00% of excess over $ 100000    36.80% effective overall tax rate(computed on tax on middle of income range)
Over $ 150000 but not over $ 200000    $  60000, plus 57.00% of excess over $ 150000    42.43% effective overall tax rate(computed on tax on middle of income range)
Over $ 200000 but not over $ 300000    $  88500, plus 58.00% of excess over $ 200000    47.00% effective overall tax rate(computed on tax on middle of income range)
Over $ 300000 but not over $ 400000    $ 146500, plus 59.00% of excess over $ 300000    50.29% effective overall tax rate(computed on tax on middle of income range)
Over $ 400000 but not over $ 500000    $ 205500, plus 60.00% of excess over $ 400000    52.33% effective overall tax rate(computed on tax on middle of income range)
Over $ 500000 but not over $ 750000    $ 265500, plus 61.00% of excess over $ 500000    54.68% effective overall tax rate(computed on tax on middle of income range)
Over $ 750000 but not over $1000000    $ 418000, plus 62.00% of excess over $ 750000    56.63% effective overall tax rate(computed on tax on middle of income range)
Over $1000000 ........................ $ 573000, plus 63.00% of excess over $1000000    57.30% <=> 63.00% effective overall tax rate as income goes to infinity
1934 tax rate schedule with figures INFLATION-ADJUSTED to 2013 dollars(for SINGLE taxpayer) ... the multiplier is 17.220597015 based on the average of the last 12 monthly figures through and including April 2013 released in mid-May 2013)
Inflation multiplier was determined from Bureau of Labor Statistics at [CPI Inflation Calculator | Historical Consumer Price Index]
Computation of the actual taxes due and the effective overall tax rate at each level were done by Jeff Sagarin.

Not over $  68882 ...................................  4.00% of the taxable income       4.00% effective overall tax rate
Over $  68882 but not over $ 103324    $   2755, plus  8.00% of excess over $  68882     4.80% effective overall tax rate(computed on tax on middle of income range)
Over $ 103324 but not over $ 137765    $   5511, plus  9.00% of excess over $ 103324     5.86% effective overall tax rate(computed on tax on middle of income range)
Over $ 137765 but not over $ 172206    $   8610, plus 10.00% of excess over $ 137765     6.67% effective overall tax rate(computed on tax on middle of income range)
Over $ 172206 but not over $ 206647    $  12054, plus 11.00% of excess over $ 172206     7.36% effective overall tax rate(computed on tax on middle of income range)
Over $ 206647 but not over $ 241088    $  15843, plus 12.00% of excess over $ 206647     8.00% effective overall tax rate(computed on tax on middle of income range)
Over $ 241088 but not over $ 275530    $  19976, plus 13.00% of excess over $ 241088     8.60% effective overall tax rate(computed on tax on middle of income range)
Over $ 275530 but not over $ 309971    $  24453, plus 15.00% of excess over $ 275530     9.24% effective overall tax rate(computed on tax on middle of income range)
Over $ 309971 but not over $ 344412    $  29619, plus 17.00% of excess over $ 309971     9.95% effective overall tax rate(computed on tax on middle of income range)
Over $ 344412 but not over $ 378853    $  35474, plus 19.00% of excess over $ 344412    10.71% effective overall tax rate(computed on tax on middle of income range)
Over $ 378853 but not over $ 447736    $  42018, plus 21.00% of excess over $ 378853    11.92% effective overall tax rate(computed on tax on middle of income range)
Over $ 447736 but not over $ 551059    $  56484, plus 23.00% of excess over $ 447736    13.69% effective overall tax rate(computed on tax on middle of income range)
Over $ 551059 but not over $ 654383    $  80248, plus 25.00% of excess over $ 551059    15.46% effective overall tax rate(computed on tax on middle of income range)
Over $ 654383 but not over $ 757706    $ 106079, plus 28.00% of excess over $ 654383    17.07% effective overall tax rate(computed on tax on middle of income range)
Over $ 757706 but not over $ 861030    $ 135009, plus 31.00% of excess over $ 757706    18.66% effective overall tax rate(computed on tax on middle of income range)
Over $ 861030 but not over $ 964353    $ 167040, plus 34.00% of excess over $ 861030    20.23% effective overall tax rate(computed on tax on middle of income range)
Over $ 964353 but not over $1067677    $ 202170, plus 37.00% of excess over $ 964353    21.78% effective overall tax rate(computed on tax on middle of income range)
Over $1067677 but not over $1171001    $ 240400, plus 40.00% of excess over $1067677    23.32% effective overall tax rate(computed on tax on middle of income range)
Over $1171001 but not over $1274324    $ 281729, plus 43.00% of excess over $1171001    24.86% effective overall tax rate(computed on tax on middle of income range)
Over $1274324 but not over $1377648    $ 326158, plus 46.00% of excess over $1274324    26.39% effective overall tax rate(computed on tax on middle of income range)
Over $1377648 but not over $1549854    $ 373687, plus 49.00% of excess over $1377648    28.41% effective overall tax rate(computed on tax on middle of income range)
Over $1549854 but not over $1722060    $ 458068, plus 54.00% of excess over $1549854    30.84% effective overall tax rate(computed on tax on middle of income range)
Over $1722060 but not over $2583090    $ 551059, plus 56.00% of excess over $1722060    36.80% effective overall tax rate(computed on tax on middle of income range)
Over $2583090 but not over $3444119    $1033236, plus 57.00% of excess over $2583090    42.43% effective overall tax rate(computed on tax on middle of income range)
Over $3444119 but not over $5166179    $1524023, plus 58.00% of excess over $3444119    47.00% effective overall tax rate(computed on tax on middle of income range)
Over $5166179 but not over $6888239    $2522817, plus 59.00% of excess over $5166179    50.29% effective overall tax rate(computed on tax on middle of income range)
Over $6888239 but not over $8610299    $3538833, plus 60.00% of excess over $6888239    52.33% effective overall tax rate(computed on tax on middle of income range)
Over $8610299 but not over $12915448   $4572069, plus 61.00% of excess over $8610299    54.68% effective overall tax rate(computed on tax on middle of income range)
Over $12915448 but not over $17220597  $7198210, plus 62.00% of excess over $12915448   56.63% effective overall tax rate(computed on tax on middle of income range)
Over $17220597 ........................$9867402, plus 63.00% of excess over $17220597   57.30% <=> 63.00% effective overall tax rate as income goes to infinity
                                                                              1934     1954                                               using exact decimal values of taxes (not integers)
                                                                              ____     ____
taxable income in 2013 dollars $     10000     tax due in  2013 dollars $      400     2000     percentage of taxable income=  4.00%    for tax year 1934  percentage of 1954 taxes  20.00%
taxable income in 2013 dollars $     20000     tax due in  2013 dollars $      800     4057     percentage of taxable income=  4.00%    for tax year 1934  percentage of 1954 taxes  19.72%
taxable income in 2013 dollars $     30000     tax due in  2013 dollars $     1200     6257     percentage of taxable income=  4.00%    for tax year 1934  percentage of 1954 taxes  19.18%
taxable income in 2013 dollars $     40000     tax due in  2013 dollars $     1600     8684     percentage of taxable income=  4.00%    for tax year 1934  percentage of 1954 taxes  18.42%
taxable income in 2013 dollars $     50000     tax due in  2013 dollars $     2000    11284     percentage of taxable income=  4.00%    for tax year 1934  percentage of 1954 taxes  17.72%
taxable income in 2013 dollars $     60000     tax due in  2013 dollars $     2400    14226     percentage of taxable income=  4.00%    for tax year 1934  percentage of 1954 taxes  16.87%
taxable income in 2013 dollars $     70000     tax due in  2013 dollars $     2845    17280     percentage of taxable income=  4.06%    for tax year 1934  percentage of 1954 taxes  16.46%
taxable income in 2013 dollars $     80000     tax due in  2013 dollars $     3645    20680     percentage of taxable income=  4.56%    for tax year 1934  percentage of 1954 taxes  17.62%
taxable income in 2013 dollars $     90000     tax due in  2013 dollars $     4445    24249     percentage of taxable income=  4.94%    for tax year 1934  percentage of 1954 taxes  18.33%
taxable income in 2013 dollars $    100000     tax due in  2013 dollars $     5245    28049     percentage of taxable income=  5.24%    for tax year 1934  percentage of 1954 taxes  18.70%
taxable income in 2013 dollars $    150000     tax due in  2013 dollars $     9834    50981     percentage of taxable income=  6.56%    for tax year 1934  percentage of 1954 taxes  19.29%
taxable income in 2013 dollars $    200000     tax due in  2013 dollars $    15112    78540     percentage of taxable income=  7.56%    for tax year 1934  percentage of 1954 taxes  19.24%
taxable income in 2013 dollars $    250000     tax due in  2013 dollars $    21134   108849     percentage of taxable income=  8.45%    for tax year 1934  percentage of 1954 taxes  19.42%
taxable income in 2013 dollars $    300000     tax due in  2013 dollars $    28124   140614     percentage of taxable income=  9.37%    for tax year 1934  percentage of 1954 taxes  20.00%
taxable income in 2013 dollars $    350000     tax due in  2013 dollars $    36536   174075     percentage of taxable income= 10.44%    for tax year 1934  percentage of 1954 taxes  20.99%
taxable income in 2013 dollars $    400000     tax due in  2013 dollars $    46459   209251     percentage of taxable income= 11.61%    for tax year 1934  percentage of 1954 taxes  22.20%
taxable income in 2013 dollars $    450000     tax due in  2013 dollars $    57004   245884     percentage of taxable income= 12.67%    for tax year 1934  percentage of 1954 taxes  23.18%
taxable income in 2013 dollars $    500000     tax due in  2013 dollars $    68504   283384     percentage of taxable income= 13.70%    for tax year 1934  percentage of 1954 taxes  24.17%
taxable income in 2013 dollars $    600000     tax due in  2013 dollars $    92483   360943     percentage of taxable income= 15.41%    for tax year 1934  percentage of 1954 taxes  25.62%
taxable income in 2013 dollars $    700000     tax due in  2013 dollars $   118852   442341     percentage of taxable income= 16.98%    for tax year 1934  percentage of 1954 taxes  26.87%
taxable income in 2013 dollars $    800000     tax due in  2013 dollars $   148121   527179     percentage of taxable income= 18.52%    for tax year 1934  percentage of 1954 taxes  28.10%
taxable income in 2013 dollars $    900000     tax due in  2013 dollars $   180290   615023     percentage of taxable income= 20.03%    for tax year 1934  percentage of 1954 taxes  29.31%
taxable income in 2013 dollars $   1000000     tax due in  2013 dollars $   215359   704023     percentage of taxable income= 21.54%    for tax year 1934  percentage of 1954 taxes  30.59%

1935 tax rate schedule with ORIGINAL dollar figures(for SINGLE taxpayer)
Historical data for the marginal rates was obtained at the Tax Foundation website at [U.S. Federal Individual Income Tax Rates History, 1913-2011 (Nominal and Inflation-Adjusted Brackets)]
Computation of the actual taxes due and the effective overall tax rate at each level were done by Jeff Sagarin.

Not over $   4000 ...................................  4.00% of the taxable income       4.00% effective overall tax rate
Over $   4000 but not over $   6000    $    160, plus  8.00% of excess over $   4000     4.80% effective overall tax rate(computed on tax on middle of income range)
Over $   6000 but not over $   8000    $    320, plus  9.00% of excess over $   6000     5.86% effective overall tax rate(computed on tax on middle of income range)
Over $   8000 but not over $  10000    $    500, plus 10.00% of excess over $   8000     6.67% effective overall tax rate(computed on tax on middle of income range)
Over $  10000 but not over $  12000    $    700, plus 11.00% of excess over $  10000     7.36% effective overall tax rate(computed on tax on middle of income range)
Over $  12000 but not over $  14000    $    920, plus 12.00% of excess over $  12000     8.00% effective overall tax rate(computed on tax on middle of income range)
Over $  14000 but not over $  16000    $   1160, plus 13.00% of excess over $  14000     8.60% effective overall tax rate(computed on tax on middle of income range)
Over $  16000 but not over $  18000    $   1420, plus 15.00% of excess over $  16000     9.24% effective overall tax rate(computed on tax on middle of income range)
Over $  18000 but not over $  20000    $   1720, plus 17.00% of excess over $  18000     9.95% effective overall tax rate(computed on tax on middle of income range)
Over $  20000 but not over $  22000    $   2060, plus 19.00% of excess over $  20000    10.71% effective overall tax rate(computed on tax on middle of income range)
Over $  22000 but not over $  26000    $   2440, plus 21.00% of excess over $  22000    11.92% effective overall tax rate(computed on tax on middle of income range)
Over $  26000 but not over $  32000    $   3280, plus 23.00% of excess over $  26000    13.69% effective overall tax rate(computed on tax on middle of income range)
Over $  32000 but not over $  38000    $   4660, plus 25.00% of excess over $  32000    15.46% effective overall tax rate(computed on tax on middle of income range)
Over $  38000 but not over $  44000    $   6160, plus 28.00% of excess over $  38000    17.07% effective overall tax rate(computed on tax on middle of income range)
Over $  44000 but not over $  50000    $   7840, plus 31.00% of excess over $  44000    18.66% effective overall tax rate(computed on tax on middle of income range)
Over $  50000 but not over $  56000    $   9700, plus 34.00% of excess over $  50000    20.23% effective overall tax rate(computed on tax on middle of income range)
Over $  56000 but not over $  62000    $  11740, plus 37.00% of excess over $  56000    21.78% effective overall tax rate(computed on tax on middle of income range)
Over $  62000 but not over $  68000    $  13960, plus 40.00% of excess over $  62000    23.32% effective overall tax rate(computed on tax on middle of income range)
Over $  68000 but not over $  74000    $  16360, plus 43.00% of excess over $  68000    24.86% effective overall tax rate(computed on tax on middle of income range)
Over $  74000 but not over $  80000    $  18940, plus 46.00% of excess over $  74000    26.39% effective overall tax rate(computed on tax on middle of income range)
Over $  80000 but not over $  90000    $  21700, plus 49.00% of excess over $  80000    28.41% effective overall tax rate(computed on tax on middle of income range)
Over $  90000 but not over $ 100000    $  26600, plus 54.00% of excess over $  90000    30.84% effective overall tax rate(computed on tax on middle of income range)
Over $ 100000 but not over $ 150000    $  32000, plus 56.00% of excess over $ 100000    36.80% effective overall tax rate(computed on tax on middle of income range)
Over $ 150000 but not over $ 200000    $  60000, plus 57.00% of excess over $ 150000    42.43% effective overall tax rate(computed on tax on middle of income range)
Over $ 200000 but not over $ 300000    $  88500, plus 58.00% of excess over $ 200000    47.00% effective overall tax rate(computed on tax on middle of income range)
Over $ 300000 but not over $ 400000    $ 146500, plus 59.00% of excess over $ 300000    50.29% effective overall tax rate(computed on tax on middle of income range)
Over $ 400000 but not over $ 500000    $ 205500, plus 60.00% of excess over $ 400000    52.33% effective overall tax rate(computed on tax on middle of income range)
Over $ 500000 but not over $ 750000    $ 265500, plus 61.00% of excess over $ 500000    54.68% effective overall tax rate(computed on tax on middle of income range)
Over $ 750000 but not over $1000000    $ 418000, plus 62.00% of excess over $ 750000    56.63% effective overall tax rate(computed on tax on middle of income range)
Over $1000000 ........................ $ 573000, plus 63.00% of excess over $1000000    57.30% <=> 63.00% effective overall tax rate as income goes to infinity
1935 tax rate schedule with figures INFLATION-ADJUSTED to 2013 dollars(for SINGLE taxpayer) ... the multiplier is 16.843503650 based on the average of the last 12 monthly figures through and including April 2013 released in mid-May 2013)
Inflation multiplier was determined from Bureau of Labor Statistics at [CPI Inflation Calculator | Historical Consumer Price Index]
Computation of the actual taxes due and the effective overall tax rate at each level were done by Jeff Sagarin.

Not over $  67374 ...................................  4.00% of the taxable income       4.00% effective overall tax rate
Over $  67374 but not over $ 101061    $   2695, plus  8.00% of excess over $  67374     4.80% effective overall tax rate(computed on tax on middle of income range)
Over $ 101061 but not over $ 134748    $   5390, plus  9.00% of excess over $ 101061     5.86% effective overall tax rate(computed on tax on middle of income range)
Over $ 134748 but not over $ 168435    $   8422, plus 10.00% of excess over $ 134748     6.67% effective overall tax rate(computed on tax on middle of income range)
Over $ 168435 but not over $ 202122    $  11790, plus 11.00% of excess over $ 168435     7.36% effective overall tax rate(computed on tax on middle of income range)
Over $ 202122 but not over $ 235809    $  15496, plus 12.00% of excess over $ 202122     8.00% effective overall tax rate(computed on tax on middle of income range)
Over $ 235809 but not over $ 269496    $  19538, plus 13.00% of excess over $ 235809     8.60% effective overall tax rate(computed on tax on middle of income range)
Over $ 269496 but not over $ 303183    $  23918, plus 15.00% of excess over $ 269496     9.24% effective overall tax rate(computed on tax on middle of income range)
Over $ 303183 but not over $ 336870    $  28971, plus 17.00% of excess over $ 303183     9.95% effective overall tax rate(computed on tax on middle of income range)
Over $ 336870 but not over $ 370557    $  34698, plus 19.00% of excess over $ 336870    10.71% effective overall tax rate(computed on tax on middle of income range)
Over $ 370557 but not over $ 437931    $  41098, plus 21.00% of excess over $ 370557    11.92% effective overall tax rate(computed on tax on middle of income range)
Over $ 437931 but not over $ 538992    $  55247, plus 23.00% of excess over $ 437931    13.69% effective overall tax rate(computed on tax on middle of income range)
Over $ 538992 but not over $ 640053    $  78491, plus 25.00% of excess over $ 538992    15.46% effective overall tax rate(computed on tax on middle of income range)
Over $ 640053 but not over $ 741114    $ 103756, plus 28.00% of excess over $ 640053    17.07% effective overall tax rate(computed on tax on middle of income range)
Over $ 741114 but not over $ 842175    $ 132053, plus 31.00% of excess over $ 741114    18.66% effective overall tax rate(computed on tax on middle of income range)
Over $ 842175 but not over $ 943236    $ 163382, plus 34.00% of excess over $ 842175    20.23% effective overall tax rate(computed on tax on middle of income range)
Over $ 943236 but not over $1044297    $ 197743, plus 37.00% of excess over $ 943236    21.78% effective overall tax rate(computed on tax on middle of income range)
Over $1044297 but not over $1145358    $ 235135, plus 40.00% of excess over $1044297    23.32% effective overall tax rate(computed on tax on middle of income range)
Over $1145358 but not over $1246419    $ 275560, plus 43.00% of excess over $1145358    24.86% effective overall tax rate(computed on tax on middle of income range)
Over $1246419 but not over $1347480    $ 319016, plus 46.00% of excess over $1246419    26.39% effective overall tax rate(computed on tax on middle of income range)
Over $1347480 but not over $1515915    $ 365504, plus 49.00% of excess over $1347480    28.41% effective overall tax rate(computed on tax on middle of income range)
Over $1515915 but not over $1684350    $ 448037, plus 54.00% of excess over $1515915    30.84% effective overall tax rate(computed on tax on middle of income range)
Over $1684350 but not over $2526526    $ 538992, plus 56.00% of excess over $1684350    36.80% effective overall tax rate(computed on tax on middle of income range)
Over $2526526 but not over $3368701    $1010610, plus 57.00% of excess over $2526526    42.43% effective overall tax rate(computed on tax on middle of income range)
Over $3368701 but not over $5053051    $1490650, plus 58.00% of excess over $3368701    47.00% effective overall tax rate(computed on tax on middle of income range)
Over $5053051 but not over $6737401    $2467573, plus 59.00% of excess over $5053051    50.29% effective overall tax rate(computed on tax on middle of income range)
Over $6737401 but not over $8421752    $3461340, plus 60.00% of excess over $6737401    52.33% effective overall tax rate(computed on tax on middle of income range)
Over $8421752 but not over $12632628   $4471950, plus 61.00% of excess over $8421752    54.68% effective overall tax rate(computed on tax on middle of income range)
Over $12632628 but not over $16843504  $7040585, plus 62.00% of excess over $12632628   56.63% effective overall tax rate(computed on tax on middle of income range)
Over $16843504 ........................$9651328, plus 63.00% of excess over $16843504   57.30% <=> 63.00% effective overall tax rate as income goes to infinity
                                                                              1935     1954                                               using exact decimal values of taxes (not integers)
                                                                              ____     ____
taxable income in 2013 dollars $     10000     tax due in  2013 dollars $      400     2000     percentage of taxable income=  4.00%    for tax year 1935  percentage of 1954 taxes  20.00%
taxable income in 2013 dollars $     20000     tax due in  2013 dollars $      800     4057     percentage of taxable income=  4.00%    for tax year 1935  percentage of 1954 taxes  19.72%
taxable income in 2013 dollars $     30000     tax due in  2013 dollars $     1200     6257     percentage of taxable income=  4.00%    for tax year 1935  percentage of 1954 taxes  19.18%
taxable income in 2013 dollars $     40000     tax due in  2013 dollars $     1600     8684     percentage of taxable income=  4.00%    for tax year 1935  percentage of 1954 taxes  18.42%
taxable income in 2013 dollars $     50000     tax due in  2013 dollars $     2000    11284     percentage of taxable income=  4.00%    for tax year 1935  percentage of 1954 taxes  17.72%
taxable income in 2013 dollars $     60000     tax due in  2013 dollars $     2400    14226     percentage of taxable income=  4.00%    for tax year 1935  percentage of 1954 taxes  16.87%
taxable income in 2013 dollars $     70000     tax due in  2013 dollars $     2905    17280     percentage of taxable income=  4.15%    for tax year 1935  percentage of 1954 taxes  16.81%
taxable income in 2013 dollars $     80000     tax due in  2013 dollars $     3705    20680     percentage of taxable income=  4.63%    for tax year 1935  percentage of 1954 taxes  17.92%
taxable income in 2013 dollars $     90000     tax due in  2013 dollars $     4505    24249     percentage of taxable income=  5.01%    for tax year 1935  percentage of 1954 taxes  18.58%
taxable income in 2013 dollars $    100000     tax due in  2013 dollars $     5305    28049     percentage of taxable income=  5.31%    for tax year 1935  percentage of 1954 taxes  18.91%
taxable income in 2013 dollars $    150000     tax due in  2013 dollars $     9947    50981     percentage of taxable income=  6.63%    for tax year 1935  percentage of 1954 taxes  19.51%
taxable income in 2013 dollars $    200000     tax due in  2013 dollars $    15263    78540     percentage of taxable income=  7.63%    for tax year 1935  percentage of 1954 taxes  19.43%
taxable income in 2013 dollars $    250000     tax due in  2013 dollars $    21383   108849     percentage of taxable income=  8.55%    for tax year 1935  percentage of 1954 taxes  19.64%
taxable income in 2013 dollars $    300000     tax due in  2013 dollars $    28493   140614     percentage of taxable income=  9.50%    for tax year 1935  percentage of 1954 taxes  20.26%
taxable income in 2013 dollars $    350000     tax due in  2013 dollars $    37192   174075     percentage of taxable income= 10.63%    for tax year 1935  percentage of 1954 taxes  21.37%
taxable income in 2013 dollars $    400000     tax due in  2013 dollars $    47281   209251     percentage of taxable income= 11.82%    for tax year 1935  percentage of 1954 taxes  22.60%
taxable income in 2013 dollars $    450000     tax due in  2013 dollars $    58023   245884     percentage of taxable income= 12.89%    for tax year 1935  percentage of 1954 taxes  23.60%
taxable income in 2013 dollars $    500000     tax due in  2013 dollars $    69523   283384     percentage of taxable income= 13.90%    for tax year 1935  percentage of 1954 taxes  24.53%
taxable income in 2013 dollars $    600000     tax due in  2013 dollars $    93743   360943     percentage of taxable income= 15.62%    for tax year 1935  percentage of 1954 taxes  25.97%
taxable income in 2013 dollars $    700000     tax due in  2013 dollars $   120541   442341     percentage of taxable income= 17.22%    for tax year 1935  percentage of 1954 taxes  27.25%
taxable income in 2013 dollars $    800000     tax due in  2013 dollars $   150308   527179     percentage of taxable income= 18.79%    for tax year 1935  percentage of 1954 taxes  28.51%
taxable income in 2013 dollars $    900000     tax due in  2013 dollars $   183042   615023     percentage of taxable income= 20.34%    for tax year 1935  percentage of 1954 taxes  29.76%
taxable income in 2013 dollars $   1000000     tax due in  2013 dollars $   218745   704023     percentage of taxable income= 21.87%    for tax year 1935  percentage of 1954 taxes  31.07%

1936 tax rate schedule with ORIGINAL dollar figures(for SINGLE taxpayer)
Historical data for the marginal rates was obtained at the Tax Foundation website at [U.S. Federal Individual Income Tax Rates History, 1913-2011 (Nominal and Inflation-Adjusted Brackets)]
Computation of the actual taxes due and the effective overall tax rate at each level were done by Jeff Sagarin.

Not over $   4000 ...................................  4.00% of the taxable income       4.00% effective overall tax rate
Over $   4000 but not over $   6000    $    160, plus  8.00% of excess over $   4000     4.80% effective overall tax rate(computed on tax on middle of income range)
Over $   6000 but not over $   8000    $    320, plus  9.00% of excess over $   6000     5.86% effective overall tax rate(computed on tax on middle of income range)
Over $   8000 but not over $  10000    $    500, plus 10.00% of excess over $   8000     6.67% effective overall tax rate(computed on tax on middle of income range)
Over $  10000 but not over $  12000    $    700, plus 11.00% of excess over $  10000     7.36% effective overall tax rate(computed on tax on middle of income range)
Over $  12000 but not over $  14000    $    920, plus 12.00% of excess over $  12000     8.00% effective overall tax rate(computed on tax on middle of income range)
Over $  14000 but not over $  16000    $   1160, plus 13.00% of excess over $  14000     8.60% effective overall tax rate(computed on tax on middle of income range)
Over $  16000 but not over $  18000    $   1420, plus 15.00% of excess over $  16000     9.24% effective overall tax rate(computed on tax on middle of income range)
Over $  18000 but not over $  20000    $   1720, plus 17.00% of excess over $  18000     9.95% effective overall tax rate(computed on tax on middle of income range)
Over $  20000 but not over $  22000    $   2060, plus 19.00% of excess over $  20000    10.71% effective overall tax rate(computed on tax on middle of income range)
Over $  22000 but not over $  26000    $   2440, plus 21.00% of excess over $  22000    11.92% effective overall tax rate(computed on tax on middle of income range)
Over $  26000 but not over $  32000    $   3280, plus 23.00% of excess over $  26000    13.69% effective overall tax rate(computed on tax on middle of income range)
Over $  32000 but not over $  38000    $   4660, plus 25.00% of excess over $  32000    15.46% effective overall tax rate(computed on tax on middle of income range)
Over $  38000 but not over $  44000    $   6160, plus 28.00% of excess over $  38000    17.07% effective overall tax rate(computed on tax on middle of income range)
Over $  44000 but not over $  50000    $   7840, plus 31.00% of excess over $  44000    18.66% effective overall tax rate(computed on tax on middle of income range)
Over $  50000 but not over $  56000    $   9700, plus 35.00% of excess over $  50000    20.28% effective overall tax rate(computed on tax on middle of income range)
Over $  56000 but not over $  62000    $  11800, plus 39.00% of excess over $  56000    21.98% effective overall tax rate(computed on tax on middle of income range)
Over $  62000 but not over $  68000    $  14140, plus 43.00% of excess over $  62000    23.74% effective overall tax rate(computed on tax on middle of income range)
Over $  68000 but not over $  74000    $  16720, plus 47.00% of excess over $  68000    25.54% effective overall tax rate(computed on tax on middle of income range)
Over $  74000 but not over $  80000    $  19540, plus 51.00% of excess over $  74000    27.36% effective overall tax rate(computed on tax on middle of income range)
Over $  80000 but not over $  90000    $  22600, plus 55.00% of excess over $  80000    29.82% effective overall tax rate(computed on tax on middle of income range)
Over $  90000 but not over $ 100000    $  28100, plus 59.00% of excess over $  90000    32.68% effective overall tax rate(computed on tax on middle of income range)
Over $ 100000 but not over $ 150000    $  34000, plus 62.00% of excess over $ 100000    39.60% effective overall tax rate(computed on tax on middle of income range)
Over $ 150000 but not over $ 200000    $  65000, plus 64.00% of excess over $ 150000    46.29% effective overall tax rate(computed on tax on middle of income range)
Over $ 200000 but not over $ 250000    $  97000, plus 66.00% of excess over $ 200000    50.44% effective overall tax rate(computed on tax on middle of income range)
Over $ 250000 but not over $ 300000    $ 130000, plus 68.00% of excess over $ 250000    53.45% effective overall tax rate(computed on tax on middle of income range)
Over $ 300000 but not over $ 400000    $ 164000, plus 70.00% of excess over $ 300000    56.86% effective overall tax rate(computed on tax on middle of income range)
Over $ 400000 but not over $ 500000    $ 234000, plus 72.00% of excess over $ 400000    60.00% effective overall tax rate(computed on tax on middle of income range)
Over $ 500000 but not over $ 750000    $ 306000, plus 74.00% of excess over $ 500000    63.76% effective overall tax rate(computed on tax on middle of income range)
Over $ 750000 but not over $1000000    $ 491000, plus 76.00% of excess over $ 750000    66.97% effective overall tax rate(computed on tax on middle of income range)
Over $1000000 but not over $2000000    $ 681000, plus 77.00% of excess over $1000000    71.07% effective overall tax rate(computed on tax on middle of income range)
Over $2000000 but not over $5000000    $1451000, plus 78.00% of excess over $2000000    74.89% effective overall tax rate(computed on tax on middle of income range)
Over $5000000 ........................ $3791000, plus 79.00% of excess over $5000000    75.82% <=> 79.00% effective overall tax rate as income goes to infinity
1936 tax rate schedule with figures INFLATION-ADJUSTED to 2013 dollars(for SINGLE taxpayer) ... the multiplier is 16.601151079 based on the average of the last 12 monthly figures through and including April 2013 released in mid-May 2013)
Inflation multiplier was determined from Bureau of Labor Statistics at [CPI Inflation Calculator | Historical Consumer Price Index]
Computation of the actual taxes due and the effective overall tax rate at each level were done by Jeff Sagarin.

Not over $  66405 ...................................  4.00% of the taxable income       4.00% effective overall tax rate
Over $  66405 but not over $  99607    $   2656, plus  8.00% of excess over $  66405     4.80% effective overall tax rate(computed on tax on middle of income range)
Over $  99607 but not over $ 132809    $   5312, plus  9.00% of excess over $  99607     5.86% effective overall tax rate(computed on tax on middle of income range)
Over $ 132809 but not over $ 166012    $   8301, plus 10.00% of excess over $ 132809     6.67% effective overall tax rate(computed on tax on middle of income range)
Over $ 166012 but not over $ 199214    $  11621, plus 11.00% of excess over $ 166012     7.36% effective overall tax rate(computed on tax on middle of income range)
Over $ 199214 but not over $ 232416    $  15273, plus 12.00% of excess over $ 199214     8.00% effective overall tax rate(computed on tax on middle of income range)
Over $ 232416 but not over $ 265618    $  19257, plus 13.00% of excess over $ 232416     8.60% effective overall tax rate(computed on tax on middle of income range)
Over $ 265618 but not over $ 298821    $  23574, plus 15.00% of excess over $ 265618     9.24% effective overall tax rate(computed on tax on middle of income range)
Over $ 298821 but not over $ 332023    $  28554, plus 17.00% of excess over $ 298821     9.95% effective overall tax rate(computed on tax on middle of income range)
Over $ 332023 but not over $ 365225    $  34198, plus 19.00% of excess over $ 332023    10.71% effective overall tax rate(computed on tax on middle of income range)
Over $ 365225 but not over $ 431630    $  40507, plus 21.00% of excess over $ 365225    11.92% effective overall tax rate(computed on tax on middle of income range)
Over $ 431630 but not over $ 531237    $  54452, plus 23.00% of excess over $ 431630    13.69% effective overall tax rate(computed on tax on middle of income range)
Over $ 531237 but not over $ 630844    $  77361, plus 25.00% of excess over $ 531237    15.46% effective overall tax rate(computed on tax on middle of income range)
Over $ 630844 but not over $ 730451    $ 102263, plus 28.00% of excess over $ 630844    17.07% effective overall tax rate(computed on tax on middle of income range)
Over $ 730451 but not over $ 830058    $ 130153, plus 31.00% of excess over $ 730451    18.66% effective overall tax rate(computed on tax on middle of income range)
Over $ 830058 but not over $ 929664    $ 161031, plus 35.00% of excess over $ 830058    20.28% effective overall tax rate(computed on tax on middle of income range)
Over $ 929664 but not over $1029271    $ 195894, plus 39.00% of excess over $ 929664    21.98% effective overall tax rate(computed on tax on middle of income range)
Over $1029271 but not over $1128878    $ 234740, plus 43.00% of excess over $1029271    23.74% effective overall tax rate(computed on tax on middle of income range)
Over $1128878 but not over $1228485    $ 277571, plus 47.00% of excess over $1128878    25.54% effective overall tax rate(computed on tax on middle of income range)
Over $1228485 but not over $1328092    $ 324386, plus 51.00% of excess over $1228485    27.36% effective overall tax rate(computed on tax on middle of income range)
Over $1328092 but not over $1494104    $ 375186, plus 55.00% of excess over $1328092    29.82% effective overall tax rate(computed on tax on middle of income range)
Over $1494104 but not over $1660115    $ 466492, plus 59.00% of excess over $1494104    32.68% effective overall tax rate(computed on tax on middle of income range)
Over $1660115 but not over $2490173    $ 564439, plus 62.00% of excess over $1660115    39.60% effective overall tax rate(computed on tax on middle of income range)
Over $2490173 but not over $3320230    $1079075, plus 64.00% of excess over $2490173    46.29% effective overall tax rate(computed on tax on middle of income range)
Over $3320230 but not over $4150288    $1610312, plus 66.00% of excess over $3320230    50.44% effective overall tax rate(computed on tax on middle of income range)
Over $4150288 but not over $4980345    $2158150, plus 68.00% of excess over $4150288    53.45% effective overall tax rate(computed on tax on middle of income range)
Over $4980345 but not over $6640460    $2722589, plus 70.00% of excess over $4980345    56.86% effective overall tax rate(computed on tax on middle of income range)
Over $6640460 but not over $8300576    $3884669, plus 72.00% of excess over $6640460    60.00% effective overall tax rate(computed on tax on middle of income range)
Over $8300576 but not over $12450863   $5079952, plus 74.00% of excess over $8300576    63.76% effective overall tax rate(computed on tax on middle of income range)
Over $12450863 but not over $16601151  $8151165, plus 76.00% of excess over $12450863   66.97% effective overall tax rate(computed on tax on middle of income range)
Over $16601151 but not over $33202302  $11305384, plus 77.00% of excess over $16601151  71.07% effective overall tax rate(computed on tax on middle of income range)
Over $33202302 but not over $83005755  $24088270, plus 78.00% of excess over $33202302  74.89% effective overall tax rate(computed on tax on middle of income range)
Over $83005755 ........................$62934964, plus 79.00% of excess over $83005755  75.82% <=> 79.00% effective overall tax rate as income goes to infinity
                                                                              1936     1954                                               using exact decimal values of taxes (not integers)
                                                                              ____     ____
taxable income in 2013 dollars $     10000     tax due in  2013 dollars $      400     2000     percentage of taxable income=  4.00%    for tax year 1936  percentage of 1954 taxes  20.00%
taxable income in 2013 dollars $     20000     tax due in  2013 dollars $      800     4057     percentage of taxable income=  4.00%    for tax year 1936  percentage of 1954 taxes  19.72%
taxable income in 2013 dollars $     30000     tax due in  2013 dollars $     1200     6257     percentage of taxable income=  4.00%    for tax year 1936  percentage of 1954 taxes  19.18%
taxable income in 2013 dollars $     40000     tax due in  2013 dollars $     1600     8684     percentage of taxable income=  4.00%    for tax year 1936  percentage of 1954 taxes  18.42%
taxable income in 2013 dollars $     50000     tax due in  2013 dollars $     2000    11284     percentage of taxable income=  4.00%    for tax year 1936  percentage of 1954 taxes  17.72%
taxable income in 2013 dollars $     60000     tax due in  2013 dollars $     2400    14226     percentage of taxable income=  4.00%    for tax year 1936  percentage of 1954 taxes  16.87%
taxable income in 2013 dollars $     70000     tax due in  2013 dollars $     2944    17280     percentage of taxable income=  4.21%    for tax year 1936  percentage of 1954 taxes  17.04%
taxable income in 2013 dollars $     80000     tax due in  2013 dollars $     3744    20680     percentage of taxable income=  4.68%    for tax year 1936  percentage of 1954 taxes  18.10%
taxable income in 2013 dollars $     90000     tax due in  2013 dollars $     4544    24249     percentage of taxable income=  5.05%    for tax year 1936  percentage of 1954 taxes  18.74%
taxable income in 2013 dollars $    100000     tax due in  2013 dollars $     5348    28049     percentage of taxable income=  5.35%    for tax year 1936  percentage of 1954 taxes  19.07%
taxable income in 2013 dollars $    150000     tax due in  2013 dollars $    10020    50981     percentage of taxable income=  6.68%    for tax year 1936  percentage of 1954 taxes  19.65%
taxable income in 2013 dollars $    200000     tax due in  2013 dollars $    15367    78540     percentage of taxable income=  7.68%    for tax year 1936  percentage of 1954 taxes  19.57%
taxable income in 2013 dollars $    250000     tax due in  2013 dollars $    21543   108849     percentage of taxable income=  8.62%    for tax year 1936  percentage of 1954 taxes  19.79%
taxable income in 2013 dollars $    300000     tax due in  2013 dollars $    28754   140614     percentage of taxable income=  9.58%    for tax year 1936  percentage of 1954 taxes  20.45%
taxable income in 2013 dollars $    350000     tax due in  2013 dollars $    37614   174075     percentage of taxable income= 10.75%    for tax year 1936  percentage of 1954 taxes  21.61%
taxable income in 2013 dollars $    400000     tax due in  2013 dollars $    47809   209251     percentage of taxable income= 11.95%    for tax year 1936  percentage of 1954 taxes  22.85%
taxable income in 2013 dollars $    450000     tax due in  2013 dollars $    58677   245884     percentage of taxable income= 13.04%    for tax year 1936  percentage of 1954 taxes  23.86%
taxable income in 2013 dollars $    500000     tax due in  2013 dollars $    70177   283384     percentage of taxable income= 14.04%    for tax year 1936  percentage of 1954 taxes  24.76%
taxable income in 2013 dollars $    600000     tax due in  2013 dollars $    94552   360943     percentage of taxable income= 15.76%    for tax year 1936  percentage of 1954 taxes  26.20%
taxable income in 2013 dollars $    700000     tax due in  2013 dollars $   121627   442341     percentage of taxable income= 17.38%    for tax year 1936  percentage of 1954 taxes  27.50%
taxable income in 2013 dollars $    800000     tax due in  2013 dollars $   151713   527179     percentage of taxable income= 18.96%    for tax year 1936  percentage of 1954 taxes  28.78%
taxable income in 2013 dollars $    900000     tax due in  2013 dollars $   185511   615023     percentage of taxable income= 20.61%    for tax year 1936  percentage of 1954 taxes  30.16%
taxable income in 2013 dollars $   1000000     tax due in  2013 dollars $   223324   704023     percentage of taxable income= 22.33%    for tax year 1936  percentage of 1954 taxes  31.72%

1937 tax rate schedule with ORIGINAL dollar figures(for SINGLE taxpayer)
Historical data for the marginal rates was obtained at the Tax Foundation website at [U.S. Federal Individual Income Tax Rates History, 1913-2011 (Nominal and Inflation-Adjusted Brackets)]
Computation of the actual taxes due and the effective overall tax rate at each level were done by Jeff Sagarin.

Not over $   4000 ...................................  4.00% of the taxable income       4.00% effective overall tax rate
Over $   4000 but not over $   6000    $    160, plus  8.00% of excess over $   4000     4.80% effective overall tax rate(computed on tax on middle of income range)
Over $   6000 but not over $   8000    $    320, plus  9.00% of excess over $   6000     5.86% effective overall tax rate(computed on tax on middle of income range)
Over $   8000 but not over $  10000    $    500, plus 10.00% of excess over $   8000     6.67% effective overall tax rate(computed on tax on middle of income range)
Over $  10000 but not over $  12000    $    700, plus 11.00% of excess over $  10000     7.36% effective overall tax rate(computed on tax on middle of income range)
Over $  12000 but not over $  14000    $    920, plus 12.00% of excess over $  12000     8.00% effective overall tax rate(computed on tax on middle of income range)
Over $  14000 but not over $  16000    $   1160, plus 13.00% of excess over $  14000     8.60% effective overall tax rate(computed on tax on middle of income range)
Over $  16000 but not over $  18000    $   1420, plus 15.00% of excess over $  16000     9.24% effective overall tax rate(computed on tax on middle of income range)
Over $  18000 but not over $  20000    $   1720, plus 17.00% of excess over $  18000     9.95% effective overall tax rate(computed on tax on middle of income range)
Over $  20000 but not over $  22000    $   2060, plus 19.00% of excess over $  20000    10.71% effective overall tax rate(computed on tax on middle of income range)
Over $  22000 but not over $  26000    $   2440, plus 21.00% of excess over $  22000    11.92% effective overall tax rate(computed on tax on middle of income range)
Over $  26000 but not over $  32000    $   3280, plus 23.00% of excess over $  26000    13.69% effective overall tax rate(computed on tax on middle of income range)
Over $  32000 but not over $  38000    $   4660, plus 25.00% of excess over $  32000    15.46% effective overall tax rate(computed on tax on middle of income range)
Over $  38000 but not over $  44000    $   6160, plus 28.00% of excess over $  38000    17.07% effective overall tax rate(computed on tax on middle of income range)
Over $  44000 but not over $  50000    $   7840, plus 31.00% of excess over $  44000    18.66% effective overall tax rate(computed on tax on middle of income range)
Over $  50000 but not over $  56000    $   9700, plus 35.00% of excess over $  50000    20.28% effective overall tax rate(computed on tax on middle of income range)
Over $  56000 but not over $  62000    $  11800, plus 39.00% of excess over $  56000    21.98% effective overall tax rate(computed on tax on middle of income range)
Over $  62000 but not over $  68000    $  14140, plus 43.00% of excess over $  62000    23.74% effective overall tax rate(computed on tax on middle of income range)
Over $  68000 but not over $  74000    $  16720, plus 47.00% of excess over $  68000    25.54% effective overall tax rate(computed on tax on middle of income range)
Over $  74000 but not over $  80000    $  19540, plus 51.00% of excess over $  74000    27.36% effective overall tax rate(computed on tax on middle of income range)
Over $  80000 but not over $  90000    $  22600, plus 55.00% of excess over $  80000    29.82% effective overall tax rate(computed on tax on middle of income range)
Over $  90000 but not over $ 100000    $  28100, plus 59.00% of excess over $  90000    32.68% effective overall tax rate(computed on tax on middle of income range)
Over $ 100000 but not over $ 150000    $  34000, plus 62.00% of excess over $ 100000    39.60% effective overall tax rate(computed on tax on middle of income range)
Over $ 150000 but not over $ 200000    $  65000, plus 64.00% of excess over $ 150000    46.29% effective overall tax rate(computed on tax on middle of income range)
Over $ 200000 but not over $ 250000    $  97000, plus 66.00% of excess over $ 200000    50.44% effective overall tax rate(computed on tax on middle of income range)
Over $ 250000 but not over $ 300000    $ 130000, plus 68.00% of excess over $ 250000    53.45% effective overall tax rate(computed on tax on middle of income range)
Over $ 300000 but not over $ 400000    $ 164000, plus 70.00% of excess over $ 300000    56.86% effective overall tax rate(computed on tax on middle of income range)
Over $ 400000 but not over $ 500000    $ 234000, plus 72.00% of excess over $ 400000    60.00% effective overall tax rate(computed on tax on middle of income range)
Over $ 500000 but not over $ 750000    $ 306000, plus 74.00% of excess over $ 500000    63.76% effective overall tax rate(computed on tax on middle of income range)
Over $ 750000 but not over $1000000    $ 491000, plus 76.00% of excess over $ 750000    66.97% effective overall tax rate(computed on tax on middle of income range)
Over $1000000 but not over $2000000    $ 681000, plus 77.00% of excess over $1000000    71.07% effective overall tax rate(computed on tax on middle of income range)
Over $2000000 but not over $5000000    $1451000, plus 78.00% of excess over $2000000    74.89% effective overall tax rate(computed on tax on middle of income range)
Over $5000000 ........................ $3791000, plus 79.00% of excess over $5000000    75.82% <=> 79.00% effective overall tax rate as income goes to infinity
1937 tax rate schedule with figures INFLATION-ADJUSTED to 2013 dollars(for SINGLE taxpayer) ... the multiplier is 16.024722222 based on the average of the last 12 monthly figures through and including April 2013 released in mid-May 2013)
Inflation multiplier was determined from Bureau of Labor Statistics at [CPI Inflation Calculator | Historical Consumer Price Index]
Computation of the actual taxes due and the effective overall tax rate at each level were done by Jeff Sagarin.

Not over $  64099 ...................................  4.00% of the taxable income       4.00% effective overall tax rate
Over $  64099 but not over $  96148    $   2564, plus  8.00% of excess over $  64099     4.80% effective overall tax rate(computed on tax on middle of income range)
Over $  96148 but not over $ 128198    $   5128, plus  9.00% of excess over $  96148     5.86% effective overall tax rate(computed on tax on middle of income range)
Over $ 128198 but not over $ 160247    $   8012, plus 10.00% of excess over $ 128198     6.67% effective overall tax rate(computed on tax on middle of income range)
Over $ 160247 but not over $ 192297    $  11217, plus 11.00% of excess over $ 160247     7.36% effective overall tax rate(computed on tax on middle of income range)
Over $ 192297 but not over $ 224346    $  14743, plus 12.00% of excess over $ 192297     8.00% effective overall tax rate(computed on tax on middle of income range)
Over $ 224346 but not over $ 256396    $  18589, plus 13.00% of excess over $ 224346     8.60% effective overall tax rate(computed on tax on middle of income range)
Over $ 256396 but not over $ 288445    $  22755, plus 15.00% of excess over $ 256396     9.24% effective overall tax rate(computed on tax on middle of income range)
Over $ 288445 but not over $ 320494    $  27563, plus 17.00% of excess over $ 288445     9.95% effective overall tax rate(computed on tax on middle of income range)
Over $ 320494 but not over $ 352544    $  33011, plus 19.00% of excess over $ 320494    10.71% effective overall tax rate(computed on tax on middle of income range)
Over $ 352544 but not over $ 416643    $  39100, plus 21.00% of excess over $ 352544    11.92% effective overall tax rate(computed on tax on middle of income range)
Over $ 416643 but not over $ 512791    $  52561, plus 23.00% of excess over $ 416643    13.69% effective overall tax rate(computed on tax on middle of income range)
Over $ 512791 but not over $ 608939    $  74675, plus 25.00% of excess over $ 512791    15.46% effective overall tax rate(computed on tax on middle of income range)
Over $ 608939 but not over $ 705088    $  98712, plus 28.00% of excess over $ 608939    17.07% effective overall tax rate(computed on tax on middle of income range)
Over $ 705088 but not over $ 801236    $ 125634, plus 31.00% of excess over $ 705088    18.66% effective overall tax rate(computed on tax on middle of income range)
Over $ 801236 but not over $ 897384    $ 155440, plus 35.00% of excess over $ 801236    20.28% effective overall tax rate(computed on tax on middle of income range)
Over $ 897384 but not over $ 993533    $ 189092, plus 39.00% of excess over $ 897384    21.98% effective overall tax rate(computed on tax on middle of income range)
Over $ 993533 but not over $1089681    $ 226590, plus 43.00% of excess over $ 993533    23.74% effective overall tax rate(computed on tax on middle of income range)
Over $1089681 but not over $1185829    $ 267933, plus 47.00% of excess over $1089681    25.54% effective overall tax rate(computed on tax on middle of income range)
Over $1185829 but not over $1281978    $ 313123, plus 51.00% of excess over $1185829    27.36% effective overall tax rate(computed on tax on middle of income range)
Over $1281978 but not over $1442225    $ 362159, plus 55.00% of excess over $1281978    29.82% effective overall tax rate(computed on tax on middle of income range)
Over $1442225 but not over $1602472    $ 450295, plus 59.00% of excess over $1442225    32.68% effective overall tax rate(computed on tax on middle of income range)
Over $1602472 but not over $2403708    $ 544841, plus 62.00% of excess over $1602472    39.60% effective overall tax rate(computed on tax on middle of income range)
Over $2403708 but not over $3204944    $1041607, plus 64.00% of excess over $2403708    46.29% effective overall tax rate(computed on tax on middle of income range)
Over $3204944 but not over $4006181    $1554398, plus 66.00% of excess over $3204944    50.44% effective overall tax rate(computed on tax on middle of income range)
Over $4006181 but not over $4807417    $2083214, plus 68.00% of excess over $4006181    53.45% effective overall tax rate(computed on tax on middle of income range)
Over $4807417 but not over $6409889    $2628054, plus 70.00% of excess over $4807417    56.86% effective overall tax rate(computed on tax on middle of income range)
Over $6409889 but not over $8012361    $3749785, plus 72.00% of excess over $6409889    60.00% effective overall tax rate(computed on tax on middle of income range)
Over $8012361 but not over $12018542   $4903565, plus 74.00% of excess over $8012361    63.76% effective overall tax rate(computed on tax on middle of income range)
Over $12018542 but not over $16024722  $7868139, plus 76.00% of excess over $12018542   66.97% effective overall tax rate(computed on tax on middle of income range)
Over $16024722 but not over $32049444  $10912836, plus 77.00% of excess over $16024722  71.07% effective overall tax rate(computed on tax on middle of income range)
Over $32049444 but not over $80123611  $23251872, plus 78.00% of excess over $32049444  74.89% effective overall tax rate(computed on tax on middle of income range)
Over $80123611 ........................$60749722, plus 79.00% of excess over $80123611  75.82% <=> 79.00% effective overall tax rate as income goes to infinity
                                                                              1937     1954                                               using exact decimal values of taxes (not integers)
                                                                              ____     ____
taxable income in 2013 dollars $     10000     tax due in  2013 dollars $      400     2000     percentage of taxable income=  4.00%    for tax year 1937  percentage of 1954 taxes  20.00%
taxable income in 2013 dollars $     20000     tax due in  2013 dollars $      800     4057     percentage of taxable income=  4.00%    for tax year 1937  percentage of 1954 taxes  19.72%
taxable income in 2013 dollars $     30000     tax due in  2013 dollars $     1200     6257     percentage of taxable income=  4.00%    for tax year 1937  percentage of 1954 taxes  19.18%
taxable income in 2013 dollars $     40000     tax due in  2013 dollars $     1600     8684     percentage of taxable income=  4.00%    for tax year 1937  percentage of 1954 taxes  18.42%
taxable income in 2013 dollars $     50000     tax due in  2013 dollars $     2000    11284     percentage of taxable income=  4.00%    for tax year 1937  percentage of 1954 taxes  17.72%
taxable income in 2013 dollars $     60000     tax due in  2013 dollars $     2400    14226     percentage of taxable income=  4.00%    for tax year 1937  percentage of 1954 taxes  16.87%
taxable income in 2013 dollars $     70000     tax due in  2013 dollars $     3036    17280     percentage of taxable income=  4.34%    for tax year 1937  percentage of 1954 taxes  17.57%
taxable income in 2013 dollars $     80000     tax due in  2013 dollars $     3836    20680     percentage of taxable income=  4.80%    for tax year 1937  percentage of 1954 taxes  18.55%
taxable income in 2013 dollars $     90000     tax due in  2013 dollars $     4636    24249     percentage of taxable income=  5.15%    for tax year 1937  percentage of 1954 taxes  19.12%
taxable income in 2013 dollars $    100000     tax due in  2013 dollars $     5475    28049     percentage of taxable income=  5.47%    for tax year 1937  percentage of 1954 taxes  19.52%
taxable income in 2013 dollars $    150000     tax due in  2013 dollars $    10193    50981     percentage of taxable income=  6.80%    for tax year 1937  percentage of 1954 taxes  19.99%
taxable income in 2013 dollars $    200000     tax due in  2013 dollars $    15667    78540     percentage of taxable income=  7.83%    for tax year 1937  percentage of 1954 taxes  19.95%
taxable income in 2013 dollars $    250000     tax due in  2013 dollars $    21924   108849     percentage of taxable income=  8.77%    for tax year 1937  percentage of 1954 taxes  20.14%
taxable income in 2013 dollars $    300000     tax due in  2013 dollars $    29527   140614     percentage of taxable income=  9.84%    for tax year 1937  percentage of 1954 taxes  21.00%
taxable income in 2013 dollars $    350000     tax due in  2013 dollars $    38617   174075     percentage of taxable income= 11.03%    for tax year 1937  percentage of 1954 taxes  22.18%
taxable income in 2013 dollars $    400000     tax due in  2013 dollars $    49066   209251     percentage of taxable income= 12.27%    for tax year 1937  percentage of 1954 taxes  23.45%
taxable income in 2013 dollars $    450000     tax due in  2013 dollars $    60233   245884     percentage of taxable income= 13.39%    for tax year 1937  percentage of 1954 taxes  24.50%
taxable income in 2013 dollars $    500000     tax due in  2013 dollars $    71733   283384     percentage of taxable income= 14.35%    for tax year 1937  percentage of 1954 taxes  25.31%
taxable income in 2013 dollars $    600000     tax due in  2013 dollars $    96477   360943     percentage of taxable income= 16.08%    for tax year 1937  percentage of 1954 taxes  26.73%
taxable income in 2013 dollars $    700000     tax due in  2013 dollars $   124209   442341     percentage of taxable income= 17.74%    for tax year 1937  percentage of 1954 taxes  28.08%
taxable income in 2013 dollars $    800000     tax due in  2013 dollars $   155057   527179     percentage of taxable income= 19.38%    for tax year 1937  percentage of 1954 taxes  29.41%
taxable income in 2013 dollars $    900000     tax due in  2013 dollars $   190112   615023     percentage of taxable income= 21.12%    for tax year 1937  percentage of 1954 taxes  30.91%
taxable income in 2013 dollars $   1000000     tax due in  2013 dollars $   229370   704023     percentage of taxable income= 22.94%    for tax year 1937  percentage of 1954 taxes  32.58%

1938 tax rate schedule with ORIGINAL dollar figures(for SINGLE taxpayer)
Historical data for the marginal rates was obtained at the Tax Foundation website at [U.S. Federal Individual Income Tax Rates History, 1913-2011 (Nominal and Inflation-Adjusted Brackets)]
Computation of the actual taxes due and the effective overall tax rate at each level were done by Jeff Sagarin.

Not over $   4000 ...................................  4.00% of the taxable income       4.00% effective overall tax rate
Over $   4000 but not over $   6000    $    160, plus  8.00% of excess over $   4000     4.80% effective overall tax rate(computed on tax on middle of income range)
Over $   6000 but not over $   8000    $    320, plus  9.00% of excess over $   6000     5.86% effective overall tax rate(computed on tax on middle of income range)
Over $   8000 but not over $  10000    $    500, plus 10.00% of excess over $   8000     6.67% effective overall tax rate(computed on tax on middle of income range)
Over $  10000 but not over $  12000    $    700, plus 11.00% of excess over $  10000     7.36% effective overall tax rate(computed on tax on middle of income range)
Over $  12000 but not over $  14000    $    920, plus 12.00% of excess over $  12000     8.00% effective overall tax rate(computed on tax on middle of income range)
Over $  14000 but not over $  16000    $   1160, plus 13.00% of excess over $  14000     8.60% effective overall tax rate(computed on tax on middle of income range)
Over $  16000 but not over $  18000    $   1420, plus 15.00% of excess over $  16000     9.24% effective overall tax rate(computed on tax on middle of income range)
Over $  18000 but not over $  20000    $   1720, plus 17.00% of excess over $  18000     9.95% effective overall tax rate(computed on tax on middle of income range)
Over $  20000 but not over $  22000    $   2060, plus 19.00% of excess over $  20000    10.71% effective overall tax rate(computed on tax on middle of income range)
Over $  22000 but not over $  26000    $   2440, plus 21.00% of excess over $  22000    11.92% effective overall tax rate(computed on tax on middle of income range)
Over $  26000 but not over $  32000    $   3280, plus 23.00% of excess over $  26000    13.69% effective overall tax rate(computed on tax on middle of income range)
Over $  32000 but not over $  38000    $   4660, plus 25.00% of excess over $  32000    15.46% effective overall tax rate(computed on tax on middle of income range)
Over $  38000 but not over $  44000    $   6160, plus 28.00% of excess over $  38000    17.07% effective overall tax rate(computed on tax on middle of income range)
Over $  44000 but not over $  50000    $   7840, plus 31.00% of excess over $  44000    18.66% effective overall tax rate(computed on tax on middle of income range)
Over $  50000 but not over $  56000    $   9700, plus 35.00% of excess over $  50000    20.28% effective overall tax rate(computed on tax on middle of income range)
Over $  56000 but not over $  62000    $  11800, plus 39.00% of excess over $  56000    21.98% effective overall tax rate(computed on tax on middle of income range)
Over $  62000 but not over $  68000    $  14140, plus 43.00% of excess over $  62000    23.74% effective overall tax rate(computed on tax on middle of income range)
Over $  68000 but not over $  74000    $  16720, plus 47.00% of excess over $  68000    25.54% effective overall tax rate(computed on tax on middle of income range)
Over $  74000 but not over $  80000    $  19540, plus 51.00% of excess over $  74000    27.36% effective overall tax rate(computed on tax on middle of income range)
Over $  80000 but not over $  90000    $  22600, plus 55.00% of excess over $  80000    29.82% effective overall tax rate(computed on tax on middle of income range)
Over $  90000 but not over $ 100000    $  28100, plus 59.00% of excess over $  90000    32.68% effective overall tax rate(computed on tax on middle of income range)
Over $ 100000 but not over $ 150000    $  34000, plus 62.00% of excess over $ 100000    39.60% effective overall tax rate(computed on tax on middle of income range)
Over $ 150000 but not over $ 200000    $  65000, plus 64.00% of excess over $ 150000    46.29% effective overall tax rate(computed on tax on middle of income range)
Over $ 200000 but not over $ 250000    $  97000, plus 66.00% of excess over $ 200000    50.44% effective overall tax rate(computed on tax on middle of income range)
Over $ 250000 but not over $ 300000    $ 130000, plus 68.00% of excess over $ 250000    53.45% effective overall tax rate(computed on tax on middle of income range)
Over $ 300000 but not over $ 400000    $ 164000, plus 70.00% of excess over $ 300000    56.86% effective overall tax rate(computed on tax on middle of income range)
Over $ 400000 but not over $ 500000    $ 234000, plus 72.00% of excess over $ 400000    60.00% effective overall tax rate(computed on tax on middle of income range)
Over $ 500000 but not over $ 750000    $ 306000, plus 74.00% of excess over $ 500000    63.76% effective overall tax rate(computed on tax on middle of income range)
Over $ 750000 but not over $1000000    $ 491000, plus 76.00% of excess over $ 750000    66.97% effective overall tax rate(computed on tax on middle of income range)
Over $1000000 but not over $2000000    $ 681000, plus 77.00% of excess over $1000000    71.07% effective overall tax rate(computed on tax on middle of income range)
Over $2000000 but not over $5000000    $1451000, plus 78.00% of excess over $2000000    74.89% effective overall tax rate(computed on tax on middle of income range)
Over $5000000 ........................ $3791000, plus 79.00% of excess over $5000000    75.82% <=> 79.00% effective overall tax rate as income goes to infinity
1938 tax rate schedule with figures INFLATION-ADJUSTED to 2013 dollars(for SINGLE taxpayer) ... the multiplier is 16.365673759 based on the average of the last 12 monthly figures through and including April 2013 released in mid-May 2013)
Inflation multiplier was determined from Bureau of Labor Statistics at [CPI Inflation Calculator | Historical Consumer Price Index]
Computation of the actual taxes due and the effective overall tax rate at each level were done by Jeff Sagarin.

Not over $  65463 ...................................  4.00% of the taxable income       4.00% effective overall tax rate
Over $  65463 but not over $  98194    $   2619, plus  8.00% of excess over $  65463     4.80% effective overall tax rate(computed on tax on middle of income range)
Over $  98194 but not over $ 130925    $   5237, plus  9.00% of excess over $  98194     5.86% effective overall tax rate(computed on tax on middle of income range)
Over $ 130925 but not over $ 163657    $   8183, plus 10.00% of excess over $ 130925     6.67% effective overall tax rate(computed on tax on middle of income range)
Over $ 163657 but not over $ 196388    $  11456, plus 11.00% of excess over $ 163657     7.36% effective overall tax rate(computed on tax on middle of income range)
Over $ 196388 but not over $ 229119    $  15056, plus 12.00% of excess over $ 196388     8.00% effective overall tax rate(computed on tax on middle of income range)
Over $ 229119 but not over $ 261851    $  18984, plus 13.00% of excess over $ 229119     8.60% effective overall tax rate(computed on tax on middle of income range)
Over $ 261851 but not over $ 294582    $  23239, plus 15.00% of excess over $ 261851     9.24% effective overall tax rate(computed on tax on middle of income range)
Over $ 294582 but not over $ 327313    $  28149, plus 17.00% of excess over $ 294582     9.95% effective overall tax rate(computed on tax on middle of income range)
Over $ 327313 but not over $ 360045    $  33713, plus 19.00% of excess over $ 327313    10.71% effective overall tax rate(computed on tax on middle of income range)
Over $ 360045 but not over $ 425508    $  39932, plus 21.00% of excess over $ 360045    11.92% effective overall tax rate(computed on tax on middle of income range)
Over $ 425508 but not over $ 523702    $  53679, plus 23.00% of excess over $ 425508    13.69% effective overall tax rate(computed on tax on middle of income range)
Over $ 523702 but not over $ 621896    $  76264, plus 25.00% of excess over $ 523702    15.46% effective overall tax rate(computed on tax on middle of income range)
Over $ 621896 but not over $ 720090    $ 100813, plus 28.00% of excess over $ 621896    17.07% effective overall tax rate(computed on tax on middle of income range)
Over $ 720090 but not over $ 818284    $ 128307, plus 31.00% of excess over $ 720090    18.66% effective overall tax rate(computed on tax on middle of income range)
Over $ 818284 but not over $ 916478    $ 158747, plus 35.00% of excess over $ 818284    20.28% effective overall tax rate(computed on tax on middle of income range)
Over $ 916478 but not over $1014672    $ 193115, plus 39.00% of excess over $ 916478    21.98% effective overall tax rate(computed on tax on middle of income range)
Over $1014672 but not over $1112866    $ 231411, plus 43.00% of excess over $1014672    23.74% effective overall tax rate(computed on tax on middle of income range)
Over $1112866 but not over $1211060    $ 273634, plus 47.00% of excess over $1112866    25.54% effective overall tax rate(computed on tax on middle of income range)
Over $1211060 but not over $1309254    $ 319785, plus 51.00% of excess over $1211060    27.36% effective overall tax rate(computed on tax on middle of income range)
Over $1309254 but not over $1472911    $ 369864, plus 55.00% of excess over $1309254    29.82% effective overall tax rate(computed on tax on middle of income range)
Over $1472911 but not over $1636567    $ 459875, plus 59.00% of excess over $1472911    32.68% effective overall tax rate(computed on tax on middle of income range)
Over $1636567 but not over $2454851    $ 556433, plus 62.00% of excess over $1636567    39.60% effective overall tax rate(computed on tax on middle of income range)
Over $2454851 but not over $3273135    $1063769, plus 64.00% of excess over $2454851    46.29% effective overall tax rate(computed on tax on middle of income range)
Over $3273135 but not over $4091418    $1587470, plus 66.00% of excess over $3273135    50.44% effective overall tax rate(computed on tax on middle of income range)
Over $4091418 but not over $4909702    $2127538, plus 68.00% of excess over $4091418    53.45% effective overall tax rate(computed on tax on middle of income range)
Over $4909702 but not over $6546270    $2683970, plus 70.00% of excess over $4909702    56.86% effective overall tax rate(computed on tax on middle of income range)
Over $6546270 but not over $8182837    $3829568, plus 72.00% of excess over $6546270    60.00% effective overall tax rate(computed on tax on middle of income range)
Over $8182837 but not over $12274255   $5007896, plus 74.00% of excess over $8182837    63.76% effective overall tax rate(computed on tax on middle of income range)
Over $12274255 but not over $16365674  $8035546, plus 76.00% of excess over $12274255   66.97% effective overall tax rate(computed on tax on middle of income range)
Over $16365674 but not over $32731348  $11145024, plus 77.00% of excess over $16365674  71.07% effective overall tax rate(computed on tax on middle of income range)
Over $32731348 but not over $81828369  $23746593, plus 78.00% of excess over $32731348  74.89% effective overall tax rate(computed on tax on middle of income range)
Over $81828369 ........................$62042269, plus 79.00% of excess over $81828369  75.82% <=> 79.00% effective overall tax rate as income goes to infinity
                                                                              1938     1954                                               using exact decimal values of taxes (not integers)
                                                                              ____     ____
taxable income in 2013 dollars $     10000     tax due in  2013 dollars $      400     2000     percentage of taxable income=  4.00%    for tax year 1938  percentage of 1954 taxes  20.00%
taxable income in 2013 dollars $     20000     tax due in  2013 dollars $      800     4057     percentage of taxable income=  4.00%    for tax year 1938  percentage of 1954 taxes  19.72%
taxable income in 2013 dollars $     30000     tax due in  2013 dollars $     1200     6257     percentage of taxable income=  4.00%    for tax year 1938  percentage of 1954 taxes  19.18%
taxable income in 2013 dollars $     40000     tax due in  2013 dollars $     1600     8684     percentage of taxable income=  4.00%    for tax year 1938  percentage of 1954 taxes  18.42%
taxable income in 2013 dollars $     50000     tax due in  2013 dollars $     2000    11284     percentage of taxable income=  4.00%    for tax year 1938  percentage of 1954 taxes  17.72%
taxable income in 2013 dollars $     60000     tax due in  2013 dollars $     2400    14226     percentage of taxable income=  4.00%    for tax year 1938  percentage of 1954 taxes  16.87%
taxable income in 2013 dollars $     70000     tax due in  2013 dollars $     2981    17280     percentage of taxable income=  4.26%    for tax year 1938  percentage of 1954 taxes  17.25%
taxable income in 2013 dollars $     80000     tax due in  2013 dollars $     3781    20680     percentage of taxable income=  4.73%    for tax year 1938  percentage of 1954 taxes  18.29%
taxable income in 2013 dollars $     90000     tax due in  2013 dollars $     4581    24249     percentage of taxable income=  5.09%    for tax year 1938  percentage of 1954 taxes  18.89%
taxable income in 2013 dollars $    100000     tax due in  2013 dollars $     5400    28049     percentage of taxable income=  5.40%    for tax year 1938  percentage of 1954 taxes  19.25%
taxable income in 2013 dollars $    150000     tax due in  2013 dollars $    10090    50981     percentage of taxable income=  6.73%    for tax year 1938  percentage of 1954 taxes  19.79%
taxable income in 2013 dollars $    200000     tax due in  2013 dollars $    15490    78540     percentage of taxable income=  7.74%    for tax year 1938  percentage of 1954 taxes  19.72%
taxable income in 2013 dollars $    250000     tax due in  2013 dollars $    21699   108849     percentage of taxable income=  8.68%    for tax year 1938  percentage of 1954 taxes  19.93%
taxable income in 2013 dollars $    300000     tax due in  2013 dollars $    29070   140614     percentage of taxable income=  9.69%    for tax year 1938  percentage of 1954 taxes  20.67%
taxable income in 2013 dollars $    350000     tax due in  2013 dollars $    38024   174075     percentage of taxable income= 10.86%    for tax year 1938  percentage of 1954 taxes  21.84%
taxable income in 2013 dollars $    400000     tax due in  2013 dollars $    48323   209251     percentage of taxable income= 12.08%    for tax year 1938  percentage of 1954 taxes  23.09%
taxable income in 2013 dollars $    450000     tax due in  2013 dollars $    59313   245884     percentage of taxable income= 13.18%    for tax year 1938  percentage of 1954 taxes  24.12%
taxable income in 2013 dollars $    500000     tax due in  2013 dollars $    70813   283384     percentage of taxable income= 14.16%    for tax year 1938  percentage of 1954 taxes  24.99%
taxable income in 2013 dollars $    600000     tax due in  2013 dollars $    95339   360943     percentage of taxable income= 15.89%    for tax year 1938  percentage of 1954 taxes  26.41%
taxable income in 2013 dollars $    700000     tax due in  2013 dollars $   122682   442341     percentage of taxable income= 17.53%    for tax year 1938  percentage of 1954 taxes  27.73%
taxable income in 2013 dollars $    800000     tax due in  2013 dollars $   153079   527179     percentage of taxable income= 19.13%    for tax year 1938  percentage of 1954 taxes  29.04%
taxable income in 2013 dollars $    900000     tax due in  2013 dollars $   187348   615023     percentage of taxable income= 20.82%    for tax year 1938  percentage of 1954 taxes  30.46%
taxable income in 2013 dollars $   1000000     tax due in  2013 dollars $   225689   704023     percentage of taxable income= 22.57%    for tax year 1938  percentage of 1954 taxes  32.06%

1939 tax rate schedule with ORIGINAL dollar figures(for SINGLE taxpayer)
Historical data for the marginal rates was obtained at the Tax Foundation website at [U.S. Federal Individual Income Tax Rates History, 1913-2011 (Nominal and Inflation-Adjusted Brackets)]
Computation of the actual taxes due and the effective overall tax rate at each level were done by Jeff Sagarin.

Not over $   4000 ...................................  4.00% of the taxable income       4.00% effective overall tax rate
Over $   4000 but not over $   6000    $    160, plus  8.00% of excess over $   4000     4.80% effective overall tax rate(computed on tax on middle of income range)
Over $   6000 but not over $   8000    $    320, plus  9.00% of excess over $   6000     5.86% effective overall tax rate(computed on tax on middle of income range)
Over $   8000 but not over $  10000    $    500, plus 10.00% of excess over $   8000     6.67% effective overall tax rate(computed on tax on middle of income range)
Over $  10000 but not over $  12000    $    700, plus 11.00% of excess over $  10000     7.36% effective overall tax rate(computed on tax on middle of income range)
Over $  12000 but not over $  14000    $    920, plus 12.00% of excess over $  12000     8.00% effective overall tax rate(computed on tax on middle of income range)
Over $  14000 but not over $  16000    $   1160, plus 13.00% of excess over $  14000     8.60% effective overall tax rate(computed on tax on middle of income range)
Over $  16000 but not over $  18000    $   1420, plus 15.00% of excess over $  16000     9.24% effective overall tax rate(computed on tax on middle of income range)
Over $  18000 but not over $  20000    $   1720, plus 17.00% of excess over $  18000     9.95% effective overall tax rate(computed on tax on middle of income range)
Over $  20000 but not over $  22000    $   2060, plus 19.00% of excess over $  20000    10.71% effective overall tax rate(computed on tax on middle of income range)
Over $  22000 but not over $  26000    $   2440, plus 21.00% of excess over $  22000    11.92% effective overall tax rate(computed on tax on middle of income range)
Over $  26000 but not over $  32000    $   3280, plus 23.00% of excess over $  26000    13.69% effective overall tax rate(computed on tax on middle of income range)
Over $  32000 but not over $  38000    $   4660, plus 25.00% of excess over $  32000    15.46% effective overall tax rate(computed on tax on middle of income range)
Over $  38000 but not over $  44000    $   6160, plus 28.00% of excess over $  38000    17.07% effective overall tax rate(computed on tax on middle of income range)
Over $  44000 but not over $  50000    $   7840, plus 31.00% of excess over $  44000    18.66% effective overall tax rate(computed on tax on middle of income range)
Over $  50000 but not over $  56000    $   9700, plus 35.00% of excess over $  50000    20.28% effective overall tax rate(computed on tax on middle of income range)
Over $  56000 but not over $  62000    $  11800, plus 39.00% of excess over $  56000    21.98% effective overall tax rate(computed on tax on middle of income range)
Over $  62000 but not over $  68000    $  14140, plus 43.00% of excess over $  62000    23.74% effective overall tax rate(computed on tax on middle of income range)
Over $  68000 but not over $  74000    $  16720, plus 47.00% of excess over $  68000    25.54% effective overall tax rate(computed on tax on middle of income range)
Over $  74000 but not over $  80000    $  19540, plus 51.00% of excess over $  74000    27.36% effective overall tax rate(computed on tax on middle of income range)
Over $  80000 but not over $  90000    $  22600, plus 55.00% of excess over $  80000    29.82% effective overall tax rate(computed on tax on middle of income range)
Over $  90000 but not over $ 100000    $  28100, plus 59.00% of excess over $  90000    32.68% effective overall tax rate(computed on tax on middle of income range)
Over $ 100000 but not over $ 150000    $  34000, plus 62.00% of excess over $ 100000    39.60% effective overall tax rate(computed on tax on middle of income range)
Over $ 150000 but not over $ 200000    $  65000, plus 64.00% of excess over $ 150000    46.29% effective overall tax rate(computed on tax on middle of income range)
Over $ 200000 but not over $ 250000    $  97000, plus 66.00% of excess over $ 200000    50.44% effective overall tax rate(computed on tax on middle of income range)
Over $ 250000 but not over $ 300000    $ 130000, plus 68.00% of excess over $ 250000    53.45% effective overall tax rate(computed on tax on middle of income range)
Over $ 300000 but not over $ 400000    $ 164000, plus 70.00% of excess over $ 300000    56.86% effective overall tax rate(computed on tax on middle of income range)
Over $ 400000 but not over $ 500000    $ 234000, plus 72.00% of excess over $ 400000    60.00% effective overall tax rate(computed on tax on middle of income range)
Over $ 500000 but not over $ 750000    $ 306000, plus 74.00% of excess over $ 500000    63.76% effective overall tax rate(computed on tax on middle of income range)
Over $ 750000 but not over $1000000    $ 491000, plus 76.00% of excess over $ 750000    66.97% effective overall tax rate(computed on tax on middle of income range)
Over $1000000 but not over $2000000    $ 681000, plus 77.00% of excess over $1000000    71.07% effective overall tax rate(computed on tax on middle of income range)
Over $2000000 but not over $5000000    $1451000, plus 78.00% of excess over $2000000    74.89% effective overall tax rate(computed on tax on middle of income range)
Over $5000000 ........................ $3791000, plus 79.00% of excess over $5000000    75.82% <=> 79.00% effective overall tax rate as income goes to infinity
1939 tax rate schedule with figures INFLATION-ADJUSTED to 2013 dollars(for SINGLE taxpayer) ... the multiplier is 16.601151079 based on the average of the last 12 monthly figures through and including April 2013 released in mid-May 2013)
Inflation multiplier was determined from Bureau of Labor Statistics at [CPI Inflation Calculator | Historical Consumer Price Index]
Computation of the actual taxes due and the effective overall tax rate at each level were done by Jeff Sagarin.

Not over $  66405 ...................................  4.00% of the taxable income       4.00% effective overall tax rate
Over $  66405 but not over $  99607    $   2656, plus  8.00% of excess over $  66405     4.80% effective overall tax rate(computed on tax on middle of income range)
Over $  99607 but not over $ 132809    $   5312, plus  9.00% of excess over $  99607     5.86% effective overall tax rate(computed on tax on middle of income range)
Over $ 132809 but not over $ 166012    $   8301, plus 10.00% of excess over $ 132809     6.67% effective overall tax rate(computed on tax on middle of income range)
Over $ 166012 but not over $ 199214    $  11621, plus 11.00% of excess over $ 166012     7.36% effective overall tax rate(computed on tax on middle of income range)
Over $ 199214 but not over $ 232416    $  15273, plus 12.00% of excess over $ 199214     8.00% effective overall tax rate(computed on tax on middle of income range)
Over $ 232416 but not over $ 265618    $  19257, plus 13.00% of excess over $ 232416     8.60% effective overall tax rate(computed on tax on middle of income range)
Over $ 265618 but not over $ 298821    $  23574, plus 15.00% of excess over $ 265618     9.24% effective overall tax rate(computed on tax on middle of income range)
Over $ 298821 but not over $ 332023    $  28554, plus 17.00% of excess over $ 298821     9.95% effective overall tax rate(computed on tax on middle of income range)
Over $ 332023 but not over $ 365225    $  34198, plus 19.00% of excess over $ 332023    10.71% effective overall tax rate(computed on tax on middle of income range)
Over $ 365225 but not over $ 431630    $  40507, plus 21.00% of excess over $ 365225    11.92% effective overall tax rate(computed on tax on middle of income range)
Over $ 431630 but not over $ 531237    $  54452, plus 23.00% of excess over $ 431630    13.69% effective overall tax rate(computed on tax on middle of income range)
Over $ 531237 but not over $ 630844    $  77361, plus 25.00% of excess over $ 531237    15.46% effective overall tax rate(computed on tax on middle of income range)
Over $ 630844 but not over $ 730451    $ 102263, plus 28.00% of excess over $ 630844    17.07% effective overall tax rate(computed on tax on middle of income range)
Over $ 730451 but not over $ 830058    $ 130153, plus 31.00% of excess over $ 730451    18.66% effective overall tax rate(computed on tax on middle of income range)
Over $ 830058 but not over $ 929664    $ 161031, plus 35.00% of excess over $ 830058    20.28% effective overall tax rate(computed on tax on middle of income range)
Over $ 929664 but not over $1029271    $ 195894, plus 39.00% of excess over $ 929664    21.98% effective overall tax rate(computed on tax on middle of income range)
Over $1029271 but not over $1128878    $ 234740, plus 43.00% of excess over $1029271    23.74% effective overall tax rate(computed on tax on middle of income range)
Over $1128878 but not over $1228485    $ 277571, plus 47.00% of excess over $1128878    25.54% effective overall tax rate(computed on tax on middle of income range)
Over $1228485 but not over $1328092    $ 324386, plus 51.00% of excess over $1228485    27.36% effective overall tax rate(computed on tax on middle of income range)
Over $1328092 but not over $1494104    $ 375186, plus 55.00% of excess over $1328092    29.82% effective overall tax rate(computed on tax on middle of income range)
Over $1494104 but not over $1660115    $ 466492, plus 59.00% of excess over $1494104    32.68% effective overall tax rate(computed on tax on middle of income range)
Over $1660115 but not over $2490173    $ 564439, plus 62.00% of excess over $1660115    39.60% effective overall tax rate(computed on tax on middle of income range)
Over $2490173 but not over $3320230    $1079075, plus 64.00% of excess over $2490173    46.29% effective overall tax rate(computed on tax on middle of income range)
Over $3320230 but not over $4150288    $1610312, plus 66.00% of excess over $3320230    50.44% effective overall tax rate(computed on tax on middle of income range)
Over $4150288 but not over $4980345    $2158150, plus 68.00% of excess over $4150288    53.45% effective overall tax rate(computed on tax on middle of income range)
Over $4980345 but not over $6640460    $2722589, plus 70.00% of excess over $4980345    56.86% effective overall tax rate(computed on tax on middle of income range)
Over $6640460 but not over $8300576    $3884669, plus 72.00% of excess over $6640460    60.00% effective overall tax rate(computed on tax on middle of income range)
Over $8300576 but not over $12450863   $5079952, plus 74.00% of excess over $8300576    63.76% effective overall tax rate(computed on tax on middle of income range)
Over $12450863 but not over $16601151  $8151165, plus 76.00% of excess over $12450863   66.97% effective overall tax rate(computed on tax on middle of income range)
Over $16601151 but not over $33202302  $11305384, plus 77.00% of excess over $16601151  71.07% effective overall tax rate(computed on tax on middle of income range)
Over $33202302 but not over $83005755  $24088270, plus 78.00% of excess over $33202302  74.89% effective overall tax rate(computed on tax on middle of income range)
Over $83005755 ........................$62934964, plus 79.00% of excess over $83005755  75.82% <=> 79.00% effective overall tax rate as income goes to infinity
                                                                              1939     1954                                               using exact decimal values of taxes (not integers)
                                                                              ____     ____
taxable income in 2013 dollars $     10000     tax due in  2013 dollars $      400     2000     percentage of taxable income=  4.00%    for tax year 1939  percentage of 1954 taxes  20.00%
taxable income in 2013 dollars $     20000     tax due in  2013 dollars $      800     4057     percentage of taxable income=  4.00%    for tax year 1939  percentage of 1954 taxes  19.72%
taxable income in 2013 dollars $     30000     tax due in  2013 dollars $     1200     6257     percentage of taxable income=  4.00%    for tax year 1939  percentage of 1954 taxes  19.18%
taxable income in 2013 dollars $     40000     tax due in  2013 dollars $     1600     8684     percentage of taxable income=  4.00%    for tax year 1939  percentage of 1954 taxes  18.42%
taxable income in 2013 dollars $     50000     tax due in  2013 dollars $     2000    11284     percentage of taxable income=  4.00%    for tax year 1939  percentage of 1954 taxes  17.72%
taxable income in 2013 dollars $     60000     tax due in  2013 dollars $     2400    14226     percentage of taxable income=  4.00%    for tax year 1939  percentage of 1954 taxes  16.87%
taxable income in 2013 dollars $     70000     tax due in  2013 dollars $     2944    17280     percentage of taxable income=  4.21%    for tax year 1939  percentage of 1954 taxes  17.04%
taxable income in 2013 dollars $     80000     tax due in  2013 dollars $     3744    20680     percentage of taxable income=  4.68%    for tax year 1939  percentage of 1954 taxes  18.10%
taxable income in 2013 dollars $     90000     tax due in  2013 dollars $     4544    24249     percentage of taxable income=  5.05%    for tax year 1939  percentage of 1954 taxes  18.74%
taxable income in 2013 dollars $    100000     tax due in  2013 dollars $     5348    28049     percentage of taxable income=  5.35%    for tax year 1939  percentage of 1954 taxes  19.07%
taxable income in 2013 dollars $    150000     tax due in  2013 dollars $    10020    50981     percentage of taxable income=  6.68%    for tax year 1939  percentage of 1954 taxes  19.65%
taxable income in 2013 dollars $    200000     tax due in  2013 dollars $    15367    78540     percentage of taxable income=  7.68%    for tax year 1939  percentage of 1954 taxes  19.57%
taxable income in 2013 dollars $    250000     tax due in  2013 dollars $    21543   108849     percentage of taxable income=  8.62%    for tax year 1939  percentage of 1954 taxes  19.79%
taxable income in 2013 dollars $    300000     tax due in  2013 dollars $    28754   140614     percentage of taxable income=  9.58%    for tax year 1939  percentage of 1954 taxes  20.45%
taxable income in 2013 dollars $    350000     tax due in  2013 dollars $    37614   174075     percentage of taxable income= 10.75%    for tax year 1939  percentage of 1954 taxes  21.61%
taxable income in 2013 dollars $    400000     tax due in  2013 dollars $    47809   209251     percentage of taxable income= 11.95%    for tax year 1939  percentage of 1954 taxes  22.85%
taxable income in 2013 dollars $    450000     tax due in  2013 dollars $    58677   245884     percentage of taxable income= 13.04%    for tax year 1939  percentage of 1954 taxes  23.86%
taxable income in 2013 dollars $    500000     tax due in  2013 dollars $    70177   283384     percentage of taxable income= 14.04%    for tax year 1939  percentage of 1954 taxes  24.76%
taxable income in 2013 dollars $    600000     tax due in  2013 dollars $    94552   360943     percentage of taxable income= 15.76%    for tax year 1939  percentage of 1954 taxes  26.20%
taxable income in 2013 dollars $    700000     tax due in  2013 dollars $   121627   442341     percentage of taxable income= 17.38%    for tax year 1939  percentage of 1954 taxes  27.50%
taxable income in 2013 dollars $    800000     tax due in  2013 dollars $   151713   527179     percentage of taxable income= 18.96%    for tax year 1939  percentage of 1954 taxes  28.78%
taxable income in 2013 dollars $    900000     tax due in  2013 dollars $   185511   615023     percentage of taxable income= 20.61%    for tax year 1939  percentage of 1954 taxes  30.16%
taxable income in 2013 dollars $   1000000     tax due in  2013 dollars $   223324   704023     percentage of taxable income= 22.33%    for tax year 1939  percentage of 1954 taxes  31.72%

1940 tax rate schedule with ORIGINAL dollar figures(for SINGLE taxpayer)
Historical data for the marginal rates was obtained at the Tax Foundation website at [U.S. Federal Individual Income Tax Rates History, 1913-2011 (Nominal and Inflation-Adjusted Brackets)]
Computation of the actual taxes due and the effective overall tax rate at each level were done by Jeff Sagarin.

Not over $   4000 ...................................  4.00% of the taxable income       4.00% effective overall tax rate
Over $   4000 but not over $   6000    $    160, plus  8.00% of excess over $   4000     4.80% effective overall tax rate(computed on tax on middle of income range)
Over $   6000 but not over $   8000    $    320, plus 10.00% of excess over $   6000     6.00% effective overall tax rate(computed on tax on middle of income range)
Over $   8000 but not over $  10000    $    520, plus 12.00% of excess over $   8000     7.11% effective overall tax rate(computed on tax on middle of income range)
Over $  10000 but not over $  12000    $    760, plus 14.00% of excess over $  10000     8.18% effective overall tax rate(computed on tax on middle of income range)
Over $  12000 but not over $  14000    $   1040, plus 16.00% of excess over $  12000     9.23% effective overall tax rate(computed on tax on middle of income range)
Over $  14000 but not over $  16000    $   1360, plus 19.00% of excess over $  14000    10.33% effective overall tax rate(computed on tax on middle of income range)
Over $  16000 but not over $  18000    $   1740, plus 22.00% of excess over $  16000    11.53% effective overall tax rate(computed on tax on middle of income range)
Over $  18000 but not over $  20000    $   2180, plus 25.00% of excess over $  18000    12.79% effective overall tax rate(computed on tax on middle of income range)
Over $  20000 but not over $  22000    $   2680, plus 28.00% of excess over $  20000    14.10% effective overall tax rate(computed on tax on middle of income range)
Over $  22000 but not over $  26000    $   3240, plus 31.00% of excess over $  22000    16.08% effective overall tax rate(computed on tax on middle of income range)
Over $  26000 but not over $  32000    $   4480, plus 34.00% of excess over $  26000    18.97% effective overall tax rate(computed on tax on middle of income range)
Over $  32000 but not over $  38000    $   6520, plus 37.00% of excess over $  32000    21.80% effective overall tax rate(computed on tax on middle of income range)
Over $  38000 but not over $  44000    $   8740, plus 40.00% of excess over $  38000    24.24% effective overall tax rate(computed on tax on middle of income range)
Over $  44000 but not over $  50000    $  11140, plus 44.00% of excess over $  44000    26.51% effective overall tax rate(computed on tax on middle of income range)
Over $  50000 but not over $  60000    $  13780, plus 48.00% of excess over $  50000    29.42% effective overall tax rate(computed on tax on middle of income range)
Over $  60000 but not over $  70000    $  18580, plus 51.00% of excess over $  60000    32.51% effective overall tax rate(computed on tax on middle of income range)
Over $  70000 but not over $  80000    $  23680, plus 54.00% of excess over $  70000    35.17% effective overall tax rate(computed on tax on middle of income range)
Over $  80000 but not over $  90000    $  29080, plus 57.00% of excess over $  80000    37.56% effective overall tax rate(computed on tax on middle of income range)
Over $  90000 but not over $ 100000    $  34780, plus 60.00% of excess over $  90000    39.77% effective overall tax rate(computed on tax on middle of income range)
Over $ 100000 but not over $ 150000    $  40780, plus 62.00% of excess over $ 100000    45.02% effective overall tax rate(computed on tax on middle of income range)
Over $ 150000 but not over $ 200000    $  71780, plus 64.00% of excess over $ 150000    50.16% effective overall tax rate(computed on tax on middle of income range)
Over $ 200000 but not over $ 250000    $ 103780, plus 66.00% of excess over $ 200000    53.46% effective overall tax rate(computed on tax on middle of income range)
Over $ 250000 but not over $ 300000    $ 136780, plus 68.00% of excess over $ 250000    55.92% effective overall tax rate(computed on tax on middle of income range)
Over $ 300000 but not over $ 400000    $ 170780, plus 70.00% of excess over $ 300000    58.79% effective overall tax rate(computed on tax on middle of income range)
Over $ 400000 but not over $ 500000    $ 240780, plus 72.00% of excess over $ 400000    61.51% effective overall tax rate(computed on tax on middle of income range)
Over $ 500000 but not over $ 750000    $ 312780, plus 74.00% of excess over $ 500000    64.84% effective overall tax rate(computed on tax on middle of income range)
Over $ 750000 but not over $1000000    $ 497780, plus 76.00% of excess over $ 750000    67.75% effective overall tax rate(computed on tax on middle of income range)
Over $1000000 but not over $2000000    $ 687780, plus 77.00% of excess over $1000000    71.52% effective overall tax rate(computed on tax on middle of income range)
Over $2000000 but not over $5000000    $1457780, plus 78.00% of excess over $2000000    75.08% effective overall tax rate(computed on tax on middle of income range)
Over $5000000 ........................ $3797780, plus 79.00% of excess over $5000000    75.96% <=> 79.00% effective overall tax rate as income goes to infinity
1940 tax rate schedule with figures INFLATION-ADJUSTED to 2013 dollars(for SINGLE taxpayer) ... the multiplier is 16.482571428 based on the average of the last 12 monthly figures through and including April 2013 released in mid-May 2013)
Inflation multiplier was determined from Bureau of Labor Statistics at [CPI Inflation Calculator | Historical Consumer Price Index]
Computation of the actual taxes due and the effective overall tax rate at each level were done by Jeff Sagarin.

Not over $  65930 ...................................  4.00% of the taxable income       4.00% effective overall tax rate
Over $  65930 but not over $  98895    $   2637, plus  8.00% of excess over $  65930     4.80% effective overall tax rate(computed on tax on middle of income range)
Over $  98895 but not over $ 131861    $   5274, plus 10.00% of excess over $  98895     6.00% effective overall tax rate(computed on tax on middle of income range)
Over $ 131861 but not over $ 164826    $   8571, plus 12.00% of excess over $ 131861     7.11% effective overall tax rate(computed on tax on middle of income range)
Over $ 164826 but not over $ 197791    $  12527, plus 14.00% of excess over $ 164826     8.18% effective overall tax rate(computed on tax on middle of income range)
Over $ 197791 but not over $ 230756    $  17142, plus 16.00% of excess over $ 197791     9.23% effective overall tax rate(computed on tax on middle of income range)
Over $ 230756 but not over $ 263721    $  22416, plus 19.00% of excess over $ 230756    10.33% effective overall tax rate(computed on tax on middle of income range)
Over $ 263721 but not over $ 296686    $  28680, plus 22.00% of excess over $ 263721    11.53% effective overall tax rate(computed on tax on middle of income range)
Over $ 296686 but not over $ 329651    $  35932, plus 25.00% of excess over $ 296686    12.79% effective overall tax rate(computed on tax on middle of income range)
Over $ 329651 but not over $ 362617    $  44173, plus 28.00% of excess over $ 329651    14.10% effective overall tax rate(computed on tax on middle of income range)
Over $ 362617 but not over $ 428547    $  53404, plus 31.00% of excess over $ 362617    16.08% effective overall tax rate(computed on tax on middle of income range)
Over $ 428547 but not over $ 527442    $  73842, plus 34.00% of excess over $ 428547    18.97% effective overall tax rate(computed on tax on middle of income range)
Over $ 527442 but not over $ 626338    $ 107466, plus 37.00% of excess over $ 527442    21.80% effective overall tax rate(computed on tax on middle of income range)
Over $ 626338 but not over $ 725233    $ 144058, plus 40.00% of excess over $ 626338    24.24% effective overall tax rate(computed on tax on middle of income range)
Over $ 725233 but not over $ 824129    $ 183616, plus 44.00% of excess over $ 725233    26.51% effective overall tax rate(computed on tax on middle of income range)
Over $ 824129 but not over $ 988954    $ 227130, plus 48.00% of excess over $ 824129    29.42% effective overall tax rate(computed on tax on middle of income range)
Over $ 988954 but not over $1153780    $ 306246, plus 51.00% of excess over $ 988954    32.51% effective overall tax rate(computed on tax on middle of income range)
Over $1153780 but not over $1318606    $ 390307, plus 54.00% of excess over $1153780    35.17% effective overall tax rate(computed on tax on middle of income range)
Over $1318606 but not over $1483431    $ 479313, plus 57.00% of excess over $1318606    37.56% effective overall tax rate(computed on tax on middle of income range)
Over $1483431 but not over $1648257    $ 573264, plus 60.00% of excess over $1483431    39.77% effective overall tax rate(computed on tax on middle of income range)
Over $1648257 but not over $2472386    $ 672159, plus 62.00% of excess over $1648257    45.02% effective overall tax rate(computed on tax on middle of income range)
Over $2472386 but not over $3296514    $1183119, plus 64.00% of excess over $2472386    50.16% effective overall tax rate(computed on tax on middle of income range)
Over $3296514 but not over $4120643    $1710561, plus 66.00% of excess over $3296514    53.46% effective overall tax rate(computed on tax on middle of income range)
Over $4120643 but not over $4944771    $2254486, plus 68.00% of excess over $4120643    55.92% effective overall tax rate(computed on tax on middle of income range)
Over $4944771 but not over $6593029    $2814894, plus 70.00% of excess over $4944771    58.79% effective overall tax rate(computed on tax on middle of income range)
Over $6593029 but not over $8241286    $3968674, plus 72.00% of excess over $6593029    61.51% effective overall tax rate(computed on tax on middle of income range)
Over $8241286 but not over $12361929   $5155419, plus 74.00% of excess over $8241286    64.84% effective overall tax rate(computed on tax on middle of income range)
Over $12361929 but not over $16482571  $8204694, plus 76.00% of excess over $12361929   67.75% effective overall tax rate(computed on tax on middle of income range)
Over $16482571 but not over $32965143  $11336383, plus 77.00% of excess over $16482571  71.52% effective overall tax rate(computed on tax on middle of income range)
Over $32965143 but not over $82412857  $24027963, plus 78.00% of excess over $32965143  75.08% effective overall tax rate(computed on tax on middle of income range)
Over $82412857 ........................$62597180, plus 79.00% of excess over $82412857  75.96% <=> 79.00% effective overall tax rate as income goes to infinity
                                                                              1940     1954                                               using exact decimal values of taxes (not integers)
                                                                              ____     ____
taxable income in 2013 dollars $     10000     tax due in  2013 dollars $      400     2000     percentage of taxable income=  4.00%    for tax year 1940  percentage of 1954 taxes  20.00%
taxable income in 2013 dollars $     20000     tax due in  2013 dollars $      800     4057     percentage of taxable income=  4.00%    for tax year 1940  percentage of 1954 taxes  19.72%
taxable income in 2013 dollars $     30000     tax due in  2013 dollars $     1200     6257     percentage of taxable income=  4.00%    for tax year 1940  percentage of 1954 taxes  19.18%
taxable income in 2013 dollars $     40000     tax due in  2013 dollars $     1600     8684     percentage of taxable income=  4.00%    for tax year 1940  percentage of 1954 taxes  18.42%
taxable income in 2013 dollars $     50000     tax due in  2013 dollars $     2000    11284     percentage of taxable income=  4.00%    for tax year 1940  percentage of 1954 taxes  17.72%
taxable income in 2013 dollars $     60000     tax due in  2013 dollars $     2400    14226     percentage of taxable income=  4.00%    for tax year 1940  percentage of 1954 taxes  16.87%
taxable income in 2013 dollars $     70000     tax due in  2013 dollars $     2963    17280     percentage of taxable income=  4.23%    for tax year 1940  percentage of 1954 taxes  17.15%
taxable income in 2013 dollars $     80000     tax due in  2013 dollars $     3763    20680     percentage of taxable income=  4.70%    for tax year 1940  percentage of 1954 taxes  18.19%
taxable income in 2013 dollars $     90000     tax due in  2013 dollars $     4563    24249     percentage of taxable income=  5.07%    for tax year 1940  percentage of 1954 taxes  18.82%
taxable income in 2013 dollars $    100000     tax due in  2013 dollars $     5385    28049     percentage of taxable income=  5.38%    for tax year 1940  percentage of 1954 taxes  19.20%
taxable income in 2013 dollars $    150000     tax due in  2013 dollars $    10748    50981     percentage of taxable income=  7.17%    for tax year 1940  percentage of 1954 taxes  21.08%
taxable income in 2013 dollars $    200000     tax due in  2013 dollars $    17495    78540     percentage of taxable income=  8.75%    for tax year 1940  percentage of 1954 taxes  22.28%
taxable income in 2013 dollars $    250000     tax due in  2013 dollars $    26073   108849     percentage of taxable income= 10.43%    for tax year 1940  percentage of 1954 taxes  23.95%
taxable income in 2013 dollars $    300000     tax due in  2013 dollars $    36760   140614     percentage of taxable income= 12.25%    for tax year 1940  percentage of 1954 taxes  26.14%
taxable income in 2013 dollars $    350000     tax due in  2013 dollars $    49871   174075     percentage of taxable income= 14.25%    for tax year 1940  percentage of 1954 taxes  28.65%
taxable income in 2013 dollars $    400000     tax due in  2013 dollars $    64992   209251     percentage of taxable income= 16.25%    for tax year 1940  percentage of 1954 taxes  31.06%
taxable income in 2013 dollars $    450000     tax due in  2013 dollars $    81136   245884     percentage of taxable income= 18.03%    for tax year 1940  percentage of 1954 taxes  33.00%
taxable income in 2013 dollars $    500000     tax due in  2013 dollars $    98136   283384     percentage of taxable income= 19.63%    for tax year 1940  percentage of 1954 taxes  34.63%
taxable income in 2013 dollars $    600000     tax due in  2013 dollars $   134313   360943     percentage of taxable income= 22.39%    for tax year 1940  percentage of 1954 taxes  37.21%
taxable income in 2013 dollars $    700000     tax due in  2013 dollars $   173523   442341     percentage of taxable income= 24.79%    for tax year 1940  percentage of 1954 taxes  39.23%
taxable income in 2013 dollars $    800000     tax due in  2013 dollars $   216513   527179     percentage of taxable income= 27.06%    for tax year 1940  percentage of 1954 taxes  41.07%
taxable income in 2013 dollars $    900000     tax due in  2013 dollars $   263548   615023     percentage of taxable income= 29.28%    for tax year 1940  percentage of 1954 taxes  42.85%
taxable income in 2013 dollars $   1000000     tax due in  2013 dollars $   311879   704023     percentage of taxable income= 31.19%    for tax year 1940  percentage of 1954 taxes  44.30%

1941 tax rate schedule with ORIGINAL dollar figures(for SINGLE taxpayer)
Historical data for the marginal rates was obtained at the Tax Foundation website at [U.S. Federal Individual Income Tax Rates History, 1913-2011 (Nominal and Inflation-Adjusted Brackets)]
Computation of the actual taxes due and the effective overall tax rate at each level were done by Jeff Sagarin.

Not over $   2000 ................................... 10.00% of the taxable income      10.00% effective overall tax rate
Over $   2000 but not over $   4000    $    200, plus 13.00% of excess over $   2000    11.00% effective overall tax rate(computed on tax on middle of income range)
Over $   4000 but not over $   6000    $    460, plus 17.00% of excess over $   4000    12.60% effective overall tax rate(computed on tax on middle of income range)
Over $   6000 but not over $   8000    $    800, plus 21.00% of excess over $   6000    14.43% effective overall tax rate(computed on tax on middle of income range)
Over $   8000 but not over $  10000    $   1220, plus 25.00% of excess over $   8000    16.33% effective overall tax rate(computed on tax on middle of income range)
Over $  10000 but not over $  12000    $   1720, plus 29.00% of excess over $  10000    18.27% effective overall tax rate(computed on tax on middle of income range)
Over $  12000 but not over $  14000    $   2300, plus 33.00% of excess over $  12000    20.23% effective overall tax rate(computed on tax on middle of income range)
Over $  14000 but not over $  16000    $   2960, plus 36.00% of excess over $  14000    22.13% effective overall tax rate(computed on tax on middle of income range)
Over $  16000 but not over $  18000    $   3680, plus 39.00% of excess over $  16000    23.94% effective overall tax rate(computed on tax on middle of income range)
Over $  18000 but not over $  20000    $   4460, plus 42.00% of excess over $  18000    25.68% effective overall tax rate(computed on tax on middle of income range)
Over $  20000 but not over $  22000    $   5300, plus 45.00% of excess over $  20000    27.38% effective overall tax rate(computed on tax on middle of income range)
Over $  22000 but not over $  26000    $   6200, plus 48.00% of excess over $  22000    29.83% effective overall tax rate(computed on tax on middle of income range)
Over $  26000 but not over $  32000    $   8120, plus 51.00% of excess over $  26000    33.28% effective overall tax rate(computed on tax on middle of income range)
Over $  32000 but not over $  38000    $  11180, plus 54.00% of excess over $  32000    36.57% effective overall tax rate(computed on tax on middle of income range)
Over $  38000 but not over $  44000    $  14420, plus 57.00% of excess over $  38000    39.34% effective overall tax rate(computed on tax on middle of income range)
Over $  44000 but not over $  50000    $  17840, plus 59.00% of excess over $  44000    41.72% effective overall tax rate(computed on tax on middle of income range)
Over $  50000 but not over $  60000    $  21380, plus 61.00% of excess over $  50000    44.42% effective overall tax rate(computed on tax on middle of income range)
Over $  60000 but not over $  70000    $  27480, plus 63.00% of excess over $  60000    47.12% effective overall tax rate(computed on tax on middle of income range)
Over $  70000 but not over $  80000    $  33780, plus 65.00% of excess over $  70000    49.37% effective overall tax rate(computed on tax on middle of income range)
Over $  80000 but not over $  90000    $  40280, plus 67.00% of excess over $  80000    51.33% effective overall tax rate(computed on tax on middle of income range)
Over $  90000 but not over $ 100000    $  46980, plus 68.00% of excess over $  90000    53.03% effective overall tax rate(computed on tax on middle of income range)
Over $ 100000 but not over $ 150000    $  53780, plus 69.00% of excess over $ 100000    56.82% effective overall tax rate(computed on tax on middle of income range)
Over $ 150000 but not over $ 200000    $  88280, plus 70.00% of excess over $ 150000    60.45% effective overall tax rate(computed on tax on middle of income range)
Over $ 200000 but not over $ 250000    $ 123280, plus 71.00% of excess over $ 200000    62.68% effective overall tax rate(computed on tax on middle of income range)
Over $ 250000 but not over $ 300000    $ 158780, plus 73.00% of excess over $ 250000    64.37% effective overall tax rate(computed on tax on middle of income range)
Over $ 300000 but not over $ 400000    $ 195280, plus 75.00% of excess over $ 300000    66.51% effective overall tax rate(computed on tax on middle of income range)
Over $ 400000 but not over $ 500000    $ 270280, plus 76.00% of excess over $ 400000    68.51% effective overall tax rate(computed on tax on middle of income range)
Over $ 500000 but not over $ 750000    $ 346280, plus 77.00% of excess over $ 500000    70.80% effective overall tax rate(computed on tax on middle of income range)
Over $ 750000 but not over $1000000    $ 538780, plus 78.00% of excess over $ 750000    72.72% effective overall tax rate(computed on tax on middle of income range)
Over $1000000 but not over $2000000    $ 733780, plus 79.00% of excess over $1000000    75.25% effective overall tax rate(computed on tax on middle of income range)
Over $2000000 but not over $5000000    $1523780, plus 80.00% of excess over $2000000    77.82% effective overall tax rate(computed on tax on middle of income range)
Over $5000000 ........................ $3923780, plus 81.00% of excess over $5000000    78.48% <=> 81.00% effective overall tax rate as income goes to infinity
1941 tax rate schedule with figures INFLATION-ADJUSTED to 2013 dollars(for SINGLE taxpayer) ... the multiplier is 15.697687075 based on the average of the last 12 monthly figures through and including April 2013 released in mid-May 2013)
Inflation multiplier was determined from Bureau of Labor Statistics at [CPI Inflation Calculator | Historical Consumer Price Index]
Computation of the actual taxes due and the effective overall tax rate at each level were done by Jeff Sagarin.

Not over $  31395 ................................... 10.00% of the taxable income      10.00% effective overall tax rate
Over $  31395 but not over $  62791    $   3140, plus 13.00% of excess over $  31395    11.00% effective overall tax rate(computed on tax on middle of income range)
Over $  62791 but not over $  94186    $   7221, plus 17.00% of excess over $  62791    12.60% effective overall tax rate(computed on tax on middle of income range)
Over $  94186 but not over $ 125581    $  12558, plus 21.00% of excess over $  94186    14.43% effective overall tax rate(computed on tax on middle of income range)
Over $ 125581 but not over $ 156977    $  19151, plus 25.00% of excess over $ 125581    16.33% effective overall tax rate(computed on tax on middle of income range)
Over $ 156977 but not over $ 188372    $  27000, plus 29.00% of excess over $ 156977    18.27% effective overall tax rate(computed on tax on middle of income range)
Over $ 188372 but not over $ 219768    $  36105, plus 33.00% of excess over $ 188372    20.23% effective overall tax rate(computed on tax on middle of income range)
Over $ 219768 but not over $ 251163    $  46465, plus 36.00% of excess over $ 219768    22.13% effective overall tax rate(computed on tax on middle of income range)
Over $ 251163 but not over $ 282558    $  57767, plus 39.00% of excess over $ 251163    23.94% effective overall tax rate(computed on tax on middle of income range)
Over $ 282558 but not over $ 313954    $  70012, plus 42.00% of excess over $ 282558    25.68% effective overall tax rate(computed on tax on middle of income range)
Over $ 313954 but not over $ 345349    $  83198, plus 45.00% of excess over $ 313954    27.38% effective overall tax rate(computed on tax on middle of income range)
Over $ 345349 but not over $ 408140    $  97326, plus 48.00% of excess over $ 345349    29.83% effective overall tax rate(computed on tax on middle of income range)
Over $ 408140 but not over $ 502326    $ 127465, plus 51.00% of excess over $ 408140    33.28% effective overall tax rate(computed on tax on middle of income range)
Over $ 502326 but not over $ 596512    $ 175500, plus 54.00% of excess over $ 502326    36.57% effective overall tax rate(computed on tax on middle of income range)
Over $ 596512 but not over $ 690698    $ 226361, plus 57.00% of excess over $ 596512    39.34% effective overall tax rate(computed on tax on middle of income range)
Over $ 690698 but not over $ 784884    $ 280047, plus 59.00% of excess over $ 690698    41.72% effective overall tax rate(computed on tax on middle of income range)
Over $ 784884 but not over $ 941861    $ 335617, plus 61.00% of excess over $ 784884    44.42% effective overall tax rate(computed on tax on middle of income range)
Over $ 941861 but not over $1098838    $ 431372, plus 63.00% of excess over $ 941861    47.12% effective overall tax rate(computed on tax on middle of income range)
Over $1098838 but not over $1255815    $ 530268, plus 65.00% of excess over $1098838    49.37% effective overall tax rate(computed on tax on middle of income range)
Over $1255815 but not over $1412792    $ 632303, plus 67.00% of excess over $1255815    51.33% effective overall tax rate(computed on tax on middle of income range)
Over $1412792 but not over $1569769    $ 737477, plus 68.00% of excess over $1412792    53.03% effective overall tax rate(computed on tax on middle of income range)
Over $1569769 but not over $2354653    $ 844222, plus 69.00% of excess over $1569769    56.82% effective overall tax rate(computed on tax on middle of income range)
Over $2354653 but not over $3139537    $1385792, plus 70.00% of excess over $2354653    60.45% effective overall tax rate(computed on tax on middle of income range)
Over $3139537 but not over $3924422    $1935211, plus 71.00% of excess over $3139537    62.68% effective overall tax rate(computed on tax on middle of income range)
Over $3924422 but not over $4709306    $2492479, plus 73.00% of excess over $3924422    64.37% effective overall tax rate(computed on tax on middle of income range)
Over $4709306 but not over $6279075    $3065444, plus 75.00% of excess over $4709306    66.51% effective overall tax rate(computed on tax on middle of income range)
Over $6279075 but not over $7848844    $4242771, plus 76.00% of excess over $6279075    68.51% effective overall tax rate(computed on tax on middle of income range)
Over $7848844 but not over $11773265   $5435795, plus 77.00% of excess over $7848844    70.80% effective overall tax rate(computed on tax on middle of income range)
Over $11773265 but not over $15697687  $8457600, plus 78.00% of excess over $11773265   72.72% effective overall tax rate(computed on tax on middle of income range)
Over $15697687 but not over $31395374  $11518649, plus 79.00% of excess over $15697687  75.25% effective overall tax rate(computed on tax on middle of income range)
Over $31395374 but not over $78488435  $23919822, plus 80.00% of excess over $31395374  77.82% effective overall tax rate(computed on tax on middle of income range)
Over $78488435 ........................$61594271, plus 81.00% of excess over $78488435  78.48% <=> 81.00% effective overall tax rate as income goes to infinity
                                                                              1941     1954                                               using exact decimal values of taxes (not integers)
                                                                              ____     ____
taxable income in 2013 dollars $     10000     tax due in  2013 dollars $     1000     2000     percentage of taxable income= 10.00%    for tax year 1941  percentage of 1954 taxes  50.00%
taxable income in 2013 dollars $     20000     tax due in  2013 dollars $     2000     4057     percentage of taxable income= 10.00%    for tax year 1941  percentage of 1954 taxes  49.30%
taxable income in 2013 dollars $     30000     tax due in  2013 dollars $     3000     6257     percentage of taxable income= 10.00%    for tax year 1941  percentage of 1954 taxes  47.95%
taxable income in 2013 dollars $     40000     tax due in  2013 dollars $     4258     8684     percentage of taxable income= 10.65%    for tax year 1941  percentage of 1954 taxes  49.03%
taxable income in 2013 dollars $     50000     tax due in  2013 dollars $     5558    11284     percentage of taxable income= 11.12%    for tax year 1941  percentage of 1954 taxes  49.26%
taxable income in 2013 dollars $     60000     tax due in  2013 dollars $     6858    14226     percentage of taxable income= 11.43%    for tax year 1941  percentage of 1954 taxes  48.21%
taxable income in 2013 dollars $     70000     tax due in  2013 dollars $     8447    17280     percentage of taxable income= 12.07%    for tax year 1941  percentage of 1954 taxes  48.88%
taxable income in 2013 dollars $     80000     tax due in  2013 dollars $    10147    20680     percentage of taxable income= 12.68%    for tax year 1941  percentage of 1954 taxes  49.06%
taxable income in 2013 dollars $     90000     tax due in  2013 dollars $    11847    24249     percentage of taxable income= 13.16%    for tax year 1941  percentage of 1954 taxes  48.85%
taxable income in 2013 dollars $    100000     tax due in  2013 dollars $    13779    28049     percentage of taxable income= 13.78%    for tax year 1941  percentage of 1954 taxes  49.12%
taxable income in 2013 dollars $    150000     tax due in  2013 dollars $    25256    50981     percentage of taxable income= 16.84%    for tax year 1941  percentage of 1954 taxes  49.54%
taxable income in 2013 dollars $    200000     tax due in  2013 dollars $    39942    78540     percentage of taxable income= 19.97%    for tax year 1941  percentage of 1954 taxes  50.86%
taxable income in 2013 dollars $    250000     tax due in  2013 dollars $    57349   108849     percentage of taxable income= 22.94%    for tax year 1941  percentage of 1954 taxes  52.69%
taxable income in 2013 dollars $    300000     tax due in  2013 dollars $    77337   140614     percentage of taxable income= 25.78%    for tax year 1941  percentage of 1954 taxes  55.00%
taxable income in 2013 dollars $    350000     tax due in  2013 dollars $    99558   174075     percentage of taxable income= 28.45%    for tax year 1941  percentage of 1954 taxes  57.19%
taxable income in 2013 dollars $    400000     tax due in  2013 dollars $   123558   209251     percentage of taxable income= 30.89%    for tax year 1941  percentage of 1954 taxes  59.05%
taxable income in 2013 dollars $    450000     tax due in  2013 dollars $   148814   245884     percentage of taxable income= 33.07%    for tax year 1941  percentage of 1954 taxes  60.52%
taxable income in 2013 dollars $    500000     tax due in  2013 dollars $   174314   283384     percentage of taxable income= 34.86%    for tax year 1941  percentage of 1954 taxes  61.51%
taxable income in 2013 dollars $    600000     tax due in  2013 dollars $   228349   360943     percentage of taxable income= 38.06%    for tax year 1941  percentage of 1954 taxes  63.26%
taxable income in 2013 dollars $    700000     tax due in  2013 dollars $   285535   442341     percentage of taxable income= 40.79%    for tax year 1941  percentage of 1954 taxes  64.55%
taxable income in 2013 dollars $    800000     tax due in  2013 dollars $   344837   527179     percentage of taxable income= 43.10%    for tax year 1941  percentage of 1954 taxes  65.41%
taxable income in 2013 dollars $    900000     tax due in  2013 dollars $   405837   615023     percentage of taxable income= 45.09%    for tax year 1941  percentage of 1954 taxes  65.99%
taxable income in 2013 dollars $   1000000     tax due in  2013 dollars $   468000   704023     percentage of taxable income= 46.80%    for tax year 1941  percentage of 1954 taxes  66.48%

1942 tax rate schedule with ORIGINAL dollar figures(for SINGLE taxpayer)
Historical data for the marginal rates was obtained at the Tax Foundation website at [U.S. Federal Individual Income Tax Rates History, 1913-2011 (Nominal and Inflation-Adjusted Brackets)]
Computation of the actual taxes due and the effective overall tax rate at each level were done by Jeff Sagarin.

Not over $   2000 ................................... 19.00% of the taxable income      19.00% effective overall tax rate
Over $   2000 but not over $   4000    $    380, plus 22.00% of excess over $   2000    20.00% effective overall tax rate(computed on tax on middle of income range)
Over $   4000 but not over $   6000    $    820, plus 26.00% of excess over $   4000    21.60% effective overall tax rate(computed on tax on middle of income range)
Over $   6000 but not over $   8000    $   1340, plus 30.00% of excess over $   6000    23.43% effective overall tax rate(computed on tax on middle of income range)
Over $   8000 but not over $  10000    $   1940, plus 34.00% of excess over $   8000    25.33% effective overall tax rate(computed on tax on middle of income range)
Over $  10000 but not over $  12000    $   2620, plus 38.00% of excess over $  10000    27.27% effective overall tax rate(computed on tax on middle of income range)
Over $  12000 but not over $  14000    $   3380, plus 42.00% of excess over $  12000    29.23% effective overall tax rate(computed on tax on middle of income range)
Over $  14000 but not over $  16000    $   4220, plus 46.00% of excess over $  14000    31.20% effective overall tax rate(computed on tax on middle of income range)
Over $  16000 but not over $  18000    $   5140, plus 49.00% of excess over $  16000    33.12% effective overall tax rate(computed on tax on middle of income range)
Over $  18000 but not over $  20000    $   6120, plus 52.00% of excess over $  18000    34.95% effective overall tax rate(computed on tax on middle of income range)
Over $  20000 but not over $  22000    $   7160, plus 55.00% of excess over $  20000    36.71% effective overall tax rate(computed on tax on middle of income range)
Over $  22000 but not over $  26000    $   8260, plus 58.00% of excess over $  22000    39.25% effective overall tax rate(computed on tax on middle of income range)
Over $  26000 but not over $  32000    $  10580, plus 61.00% of excess over $  26000    42.79% effective overall tax rate(computed on tax on middle of income range)
Over $  32000 but not over $  38000    $  14240, plus 64.00% of excess over $  32000    46.17% effective overall tax rate(computed on tax on middle of income range)
Over $  38000 but not over $  44000    $  18080, plus 67.00% of excess over $  38000    49.00% effective overall tax rate(computed on tax on middle of income range)
Over $  44000 but not over $  50000    $  22100, plus 69.00% of excess over $  44000    51.43% effective overall tax rate(computed on tax on middle of income range)
Over $  50000 but not over $  60000    $  26240, plus 72.00% of excess over $  50000    54.25% effective overall tax rate(computed on tax on middle of income range)
Over $  60000 but not over $  70000    $  33440, plus 75.00% of excess over $  60000    57.22% effective overall tax rate(computed on tax on middle of income range)
Over $  70000 but not over $  80000    $  40940, plus 78.00% of excess over $  70000    59.79% effective overall tax rate(computed on tax on middle of income range)
Over $  80000 but not over $  90000    $  48740, plus 81.00% of excess over $  80000    62.11% effective overall tax rate(computed on tax on middle of income range)
Over $  90000 but not over $ 100000    $  56840, plus 83.00% of excess over $  90000    64.20% effective overall tax rate(computed on tax on middle of income range)
Over $ 100000 but not over $ 150000    $  65140, plus 85.00% of excess over $ 100000    69.11% effective overall tax rate(computed on tax on middle of income range)
Over $ 150000 but not over $ 200000    $ 107640, plus 87.00% of excess over $ 150000    73.94% effective overall tax rate(computed on tax on middle of income range)
Over $ 200000 ........................ $ 151140, plus 88.00% of excess over $ 200000    75.57% <=> 88.00% effective overall tax rate as income goes to infinity
1942 tax rate schedule with figures INFLATION-ADJUSTED to 2013 dollars(for SINGLE taxpayer) ... the multiplier is 14.156809816 based on the average of the last 12 monthly figures through and including April 2013 released in mid-May 2013)
Inflation multiplier was determined from Bureau of Labor Statistics at [CPI Inflation Calculator | Historical Consumer Price Index]
Computation of the actual taxes due and the effective overall tax rate at each level were done by Jeff Sagarin.

Not over $  28314 ................................... 19.00% of the taxable income      19.00% effective overall tax rate
Over $  28314 but not over $  56627    $   5380, plus 22.00% of excess over $  28314    20.00% effective overall tax rate(computed on tax on middle of income range)
Over $  56627 but not over $  84941    $  11609, plus 26.00% of excess over $  56627    21.60% effective overall tax rate(computed on tax on middle of income range)
Over $  84941 but not over $ 113254    $  18970, plus 30.00% of excess over $  84941    23.43% effective overall tax rate(computed on tax on middle of income range)
Over $ 113254 but not over $ 141568    $  27464, plus 34.00% of excess over $ 113254    25.33% effective overall tax rate(computed on tax on middle of income range)
Over $ 141568 but not over $ 169882    $  37091, plus 38.00% of excess over $ 141568    27.27% effective overall tax rate(computed on tax on middle of income range)
Over $ 169882 but not over $ 198195    $  47850, plus 42.00% of excess over $ 169882    29.23% effective overall tax rate(computed on tax on middle of income range)
Over $ 198195 but not over $ 226509    $  59742, plus 46.00% of excess over $ 198195    31.20% effective overall tax rate(computed on tax on middle of income range)
Over $ 226509 but not over $ 254823    $  72766, plus 49.00% of excess over $ 226509    33.12% effective overall tax rate(computed on tax on middle of income range)
Over $ 254823 but not over $ 283136    $  86640, plus 52.00% of excess over $ 254823    34.95% effective overall tax rate(computed on tax on middle of income range)
Over $ 283136 but not over $ 311450    $ 101363, plus 55.00% of excess over $ 283136    36.71% effective overall tax rate(computed on tax on middle of income range)
Over $ 311450 but not over $ 368077    $ 116935, plus 58.00% of excess over $ 311450    39.25% effective overall tax rate(computed on tax on middle of income range)
Over $ 368077 but not over $ 453018    $ 149779, plus 61.00% of excess over $ 368077    42.79% effective overall tax rate(computed on tax on middle of income range)
Over $ 453018 but not over $ 537959    $ 201593, plus 64.00% of excess over $ 453018    46.17% effective overall tax rate(computed on tax on middle of income range)
Over $ 537959 but not over $ 622900    $ 255955, plus 67.00% of excess over $ 537959    49.00% effective overall tax rate(computed on tax on middle of income range)
Over $ 622900 but not over $ 707840    $ 312865, plus 69.00% of excess over $ 622900    51.43% effective overall tax rate(computed on tax on middle of income range)
Over $ 707840 but not over $ 849409    $ 371475, plus 72.00% of excess over $ 707840    54.25% effective overall tax rate(computed on tax on middle of income range)
Over $ 849409 but not over $ 990977    $ 473404, plus 75.00% of excess over $ 849409    57.22% effective overall tax rate(computed on tax on middle of income range)
Over $ 990977 but not over $1132545    $ 579580, plus 78.00% of excess over $ 990977    59.79% effective overall tax rate(computed on tax on middle of income range)
Over $1132545 but not over $1274113    $ 690003, plus 81.00% of excess over $1132545    62.11% effective overall tax rate(computed on tax on middle of income range)
Over $1274113 but not over $1415681    $ 804673, plus 83.00% of excess over $1274113    64.20% effective overall tax rate(computed on tax on middle of income range)
Over $1415681 but not over $2123521    $ 922175, plus 85.00% of excess over $1415681    69.11% effective overall tax rate(computed on tax on middle of income range)
Over $2123521 but not over $2831362    $1523839, plus 87.00% of excess over $2123521    73.94% effective overall tax rate(computed on tax on middle of income range)
Over $2831362 ........................ $2139660, plus 88.00% of excess over $2831362    75.57% <=> 88.00% effective overall tax rate as income goes to infinity
                                                                              1942     1954                                               using exact decimal values of taxes (not integers)
                                                                              ____     ____
taxable income in 2013 dollars $     10000     tax due in  2013 dollars $     1900     2000     percentage of taxable income= 19.00%    for tax year 1942  percentage of 1954 taxes  95.00%
taxable income in 2013 dollars $     20000     tax due in  2013 dollars $     3800     4057     percentage of taxable income= 19.00%    for tax year 1942  percentage of 1954 taxes  93.67%
taxable income in 2013 dollars $     30000     tax due in  2013 dollars $     5751     6257     percentage of taxable income= 19.17%    for tax year 1942  percentage of 1954 taxes  91.91%
taxable income in 2013 dollars $     40000     tax due in  2013 dollars $     7951     8684     percentage of taxable income= 19.88%    for tax year 1942  percentage of 1954 taxes  91.55%
taxable income in 2013 dollars $     50000     tax due in  2013 dollars $    10151    11284     percentage of taxable income= 20.30%    for tax year 1942  percentage of 1954 taxes  89.95%
taxable income in 2013 dollars $     60000     tax due in  2013 dollars $    12486    14226     percentage of taxable income= 20.81%    for tax year 1942  percentage of 1954 taxes  87.77%
taxable income in 2013 dollars $     70000     tax due in  2013 dollars $    15086    17280     percentage of taxable income= 21.55%    for tax year 1942  percentage of 1954 taxes  87.30%
taxable income in 2013 dollars $     80000     tax due in  2013 dollars $    17686    20680     percentage of taxable income= 22.11%    for tax year 1942  percentage of 1954 taxes  85.52%
taxable income in 2013 dollars $     90000     tax due in  2013 dollars $    20488    24249     percentage of taxable income= 22.76%    for tax year 1942  percentage of 1954 taxes  84.49%
taxable income in 2013 dollars $    100000     tax due in  2013 dollars $    23488    28049     percentage of taxable income= 23.49%    for tax year 1942  percentage of 1954 taxes  83.74%
taxable income in 2013 dollars $    150000     tax due in  2013 dollars $    40295    50981     percentage of taxable income= 26.86%    for tax year 1942  percentage of 1954 taxes  79.04%
taxable income in 2013 dollars $    200000     tax due in  2013 dollars $    60572    78540     percentage of taxable income= 30.29%    for tax year 1942  percentage of 1954 taxes  77.12%
taxable income in 2013 dollars $    250000     tax due in  2013 dollars $    84277   108849     percentage of taxable income= 33.71%    for tax year 1942  percentage of 1954 taxes  77.43%
taxable income in 2013 dollars $    300000     tax due in  2013 dollars $   110638   140614     percentage of taxable income= 36.88%    for tax year 1942  percentage of 1954 taxes  78.68%
taxable income in 2013 dollars $    350000     tax due in  2013 dollars $   139294   174075     percentage of taxable income= 39.80%    for tax year 1942  percentage of 1954 taxes  80.02%
taxable income in 2013 dollars $    400000     tax due in  2013 dollars $   169252   209251     percentage of taxable income= 42.31%    for tax year 1942  percentage of 1954 taxes  80.88%
taxable income in 2013 dollars $    450000     tax due in  2013 dollars $   199752   245884     percentage of taxable income= 44.39%    for tax year 1942  percentage of 1954 taxes  81.24%
taxable income in 2013 dollars $    500000     tax due in  2013 dollars $   231662   283384     percentage of taxable income= 46.33%    for tax year 1942  percentage of 1954 taxes  81.75%
taxable income in 2013 dollars $    600000     tax due in  2013 dollars $   297523   360943     percentage of taxable income= 49.59%    for tax year 1942  percentage of 1954 taxes  82.43%
taxable income in 2013 dollars $    700000     tax due in  2013 dollars $   366065   442341     percentage of taxable income= 52.29%    for tax year 1942  percentage of 1954 taxes  82.76%
taxable income in 2013 dollars $    800000     tax due in  2013 dollars $   437830   527179     percentage of taxable income= 54.73%    for tax year 1942  percentage of 1954 taxes  83.05%
taxable income in 2013 dollars $    900000     tax due in  2013 dollars $   511347   615023     percentage of taxable income= 56.82%    for tax year 1942  percentage of 1954 taxes  83.14%
taxable income in 2013 dollars $   1000000     tax due in  2013 dollars $   586618   704023     percentage of taxable income= 58.66%    for tax year 1942  percentage of 1954 taxes  83.32%

1943 tax rate schedule with ORIGINAL dollar figures(for SINGLE taxpayer)
Historical data for the marginal rates was obtained at the Tax Foundation website at [U.S. Federal Individual Income Tax Rates History, 1913-2011 (Nominal and Inflation-Adjusted Brackets)]
Computation of the actual taxes due and the effective overall tax rate at each level were done by Jeff Sagarin.

Not over $   2000 ................................... 19.00% of the taxable income      19.00% effective overall tax rate
Over $   2000 but not over $   4000    $    380, plus 22.00% of excess over $   2000    20.00% effective overall tax rate(computed on tax on middle of income range)
Over $   4000 but not over $   6000    $    820, plus 26.00% of excess over $   4000    21.60% effective overall tax rate(computed on tax on middle of income range)
Over $   6000 but not over $   8000    $   1340, plus 30.00% of excess over $   6000    23.43% effective overall tax rate(computed on tax on middle of income range)
Over $   8000 but not over $  10000    $   1940, plus 34.00% of excess over $   8000    25.33% effective overall tax rate(computed on tax on middle of income range)
Over $  10000 but not over $  12000    $   2620, plus 38.00% of excess over $  10000    27.27% effective overall tax rate(computed on tax on middle of income range)
Over $  12000 but not over $  14000    $   3380, plus 42.00% of excess over $  12000    29.23% effective overall tax rate(computed on tax on middle of income range)
Over $  14000 but not over $  16000    $   4220, plus 46.00% of excess over $  14000    31.20% effective overall tax rate(computed on tax on middle of income range)
Over $  16000 but not over $  18000    $   5140, plus 49.00% of excess over $  16000    33.12% effective overall tax rate(computed on tax on middle of income range)
Over $  18000 but not over $  20000    $   6120, plus 52.00% of excess over $  18000    34.95% effective overall tax rate(computed on tax on middle of income range)
Over $  20000 but not over $  22000    $   7160, plus 55.00% of excess over $  20000    36.71% effective overall tax rate(computed on tax on middle of income range)
Over $  22000 but not over $  26000    $   8260, plus 58.00% of excess over $  22000    39.25% effective overall tax rate(computed on tax on middle of income range)
Over $  26000 but not over $  32000    $  10580, plus 61.00% of excess over $  26000    42.79% effective overall tax rate(computed on tax on middle of income range)
Over $  32000 but not over $  38000    $  14240, plus 64.00% of excess over $  32000    46.17% effective overall tax rate(computed on tax on middle of income range)
Over $  38000 but not over $  44000    $  18080, plus 67.00% of excess over $  38000    49.00% effective overall tax rate(computed on tax on middle of income range)
Over $  44000 but not over $  50000    $  22100, plus 69.00% of excess over $  44000    51.43% effective overall tax rate(computed on tax on middle of income range)
Over $  50000 but not over $  60000    $  26240, plus 72.00% of excess over $  50000    54.25% effective overall tax rate(computed on tax on middle of income range)
Over $  60000 but not over $  70000    $  33440, plus 75.00% of excess over $  60000    57.22% effective overall tax rate(computed on tax on middle of income range)
Over $  70000 but not over $  80000    $  40940, plus 78.00% of excess over $  70000    59.79% effective overall tax rate(computed on tax on middle of income range)
Over $  80000 but not over $  90000    $  48740, plus 81.00% of excess over $  80000    62.11% effective overall tax rate(computed on tax on middle of income range)
Over $  90000 but not over $ 100000    $  56840, plus 83.00% of excess over $  90000    64.20% effective overall tax rate(computed on tax on middle of income range)
Over $ 100000 but not over $ 150000    $  65140, plus 85.00% of excess over $ 100000    69.11% effective overall tax rate(computed on tax on middle of income range)
Over $ 150000 but not over $ 200000    $ 107640, plus 87.00% of excess over $ 150000    73.94% effective overall tax rate(computed on tax on middle of income range)
Over $ 200000 ........................ $ 151140, plus 88.00% of excess over $ 200000    75.57% <=> 88.00% effective overall tax rate as income goes to infinity
1943 tax rate schedule with figures INFLATION-ADJUSTED to 2013 dollars(for SINGLE taxpayer) ... the multiplier is 13.338497109 based on the average of the last 12 monthly figures through and including April 2013 released in mid-May 2013)
Inflation multiplier was determined from Bureau of Labor Statistics at [CPI Inflation Calculator | Historical Consumer Price Index]
Computation of the actual taxes due and the effective overall tax rate at each level were done by Jeff Sagarin.

Not over $  26677 ................................... 19.00% of the taxable income      19.00% effective overall tax rate
Over $  26677 but not over $  53354    $   5069, plus 22.00% of excess over $  26677    20.00% effective overall tax rate(computed on tax on middle of income range)
Over $  53354 but not over $  80031    $  10938, plus 26.00% of excess over $  53354    21.60% effective overall tax rate(computed on tax on middle of income range)
Over $  80031 but not over $ 106708    $  17874, plus 30.00% of excess over $  80031    23.43% effective overall tax rate(computed on tax on middle of income range)
Over $ 106708 but not over $ 133385    $  25877, plus 34.00% of excess over $ 106708    25.33% effective overall tax rate(computed on tax on middle of income range)
Over $ 133385 but not over $ 160062    $  34947, plus 38.00% of excess over $ 133385    27.27% effective overall tax rate(computed on tax on middle of income range)
Over $ 160062 but not over $ 186739    $  45084, plus 42.00% of excess over $ 160062    29.23% effective overall tax rate(computed on tax on middle of income range)
Over $ 186739 but not over $ 213416    $  56288, plus 46.00% of excess over $ 186739    31.20% effective overall tax rate(computed on tax on middle of income range)
Over $ 213416 but not over $ 240093    $  68560, plus 49.00% of excess over $ 213416    33.12% effective overall tax rate(computed on tax on middle of income range)
Over $ 240093 but not over $ 266770    $  81632, plus 52.00% of excess over $ 240093    34.95% effective overall tax rate(computed on tax on middle of income range)
Over $ 266770 but not over $ 293447    $  95504, plus 55.00% of excess over $ 266770    36.71% effective overall tax rate(computed on tax on middle of income range)
Over $ 293447 but not over $ 346801    $ 110176, plus 58.00% of excess over $ 293447    39.25% effective overall tax rate(computed on tax on middle of income range)
Over $ 346801 but not over $ 426832    $ 141121, plus 61.00% of excess over $ 346801    42.79% effective overall tax rate(computed on tax on middle of income range)
Over $ 426832 but not over $ 506863    $ 189940, plus 64.00% of excess over $ 426832    46.17% effective overall tax rate(computed on tax on middle of income range)
Over $ 506863 but not over $ 586894    $ 241160, plus 67.00% of excess over $ 506863    49.00% effective overall tax rate(computed on tax on middle of income range)
Over $ 586894 but not over $ 666925    $ 294781, plus 69.00% of excess over $ 586894    51.43% effective overall tax rate(computed on tax on middle of income range)
Over $ 666925 but not over $ 800310    $ 350002, plus 72.00% of excess over $ 666925    54.25% effective overall tax rate(computed on tax on middle of income range)
Over $ 800310 but not over $ 933695    $ 446039, plus 75.00% of excess over $ 800310    57.22% effective overall tax rate(computed on tax on middle of income range)
Over $ 933695 but not over $1067080    $ 546078, plus 78.00% of excess over $ 933695    59.79% effective overall tax rate(computed on tax on middle of income range)
Over $1067080 but not over $1200465    $ 650118, plus 81.00% of excess over $1067080    62.11% effective overall tax rate(computed on tax on middle of income range)
Over $1200465 but not over $1333850    $ 758160, plus 83.00% of excess over $1200465    64.20% effective overall tax rate(computed on tax on middle of income range)
Over $1333850 but not over $2000775    $ 868870, plus 85.00% of excess over $1333850    69.11% effective overall tax rate(computed on tax on middle of income range)
Over $2000775 but not over $2667699    $1435756, plus 87.00% of excess over $2000775    73.94% effective overall tax rate(computed on tax on middle of income range)
Over $2667699 ........................ $2015980, plus 88.00% of excess over $2667699    75.57% <=> 88.00% effective overall tax rate as income goes to infinity
                                                                              1943     1954                                               using exact decimal values of taxes (not integers)
                                                                              ____     ____
taxable income in 2013 dollars $     10000     tax due in  2013 dollars $     1900     2000     percentage of taxable income= 19.00%    for tax year 1943  percentage of 1954 taxes  95.00%
taxable income in 2013 dollars $     20000     tax due in  2013 dollars $     3800     4057     percentage of taxable income= 19.00%    for tax year 1943  percentage of 1954 taxes  93.67%
taxable income in 2013 dollars $     30000     tax due in  2013 dollars $     5800     6257     percentage of taxable income= 19.33%    for tax year 1943  percentage of 1954 taxes  92.69%
taxable income in 2013 dollars $     40000     tax due in  2013 dollars $     8000     8684     percentage of taxable income= 20.00%    for tax year 1943  percentage of 1954 taxes  92.12%
taxable income in 2013 dollars $     50000     tax due in  2013 dollars $    10200    11284     percentage of taxable income= 20.40%    for tax year 1943  percentage of 1954 taxes  90.39%
taxable income in 2013 dollars $     60000     tax due in  2013 dollars $    12666    14226     percentage of taxable income= 21.11%    for tax year 1943  percentage of 1954 taxes  89.03%
taxable income in 2013 dollars $     70000     tax due in  2013 dollars $    15266    17280     percentage of taxable income= 21.81%    for tax year 1943  percentage of 1954 taxes  88.34%
taxable income in 2013 dollars $     80000     tax due in  2013 dollars $    17866    20680     percentage of taxable income= 22.33%    for tax year 1943  percentage of 1954 taxes  86.39%
taxable income in 2013 dollars $     90000     tax due in  2013 dollars $    20864    24249     percentage of taxable income= 23.18%    for tax year 1943  percentage of 1954 taxes  86.04%
taxable income in 2013 dollars $    100000     tax due in  2013 dollars $    23864    28049     percentage of taxable income= 23.86%    for tax year 1943  percentage of 1954 taxes  85.08%
taxable income in 2013 dollars $    150000     tax due in  2013 dollars $    41261    50981     percentage of taxable income= 27.51%    for tax year 1943  percentage of 1954 taxes  80.93%
taxable income in 2013 dollars $    200000     tax due in  2013 dollars $    62389    78540     percentage of taxable income= 31.19%    for tax year 1943  percentage of 1954 taxes  79.44%
taxable income in 2013 dollars $    250000     tax due in  2013 dollars $    86783   108849     percentage of taxable income= 34.71%    for tax year 1943  percentage of 1954 taxes  79.73%
taxable income in 2013 dollars $    300000     tax due in  2013 dollars $   113977   140614     percentage of taxable income= 37.99%    for tax year 1943  percentage of 1954 taxes  81.06%
taxable income in 2013 dollars $    350000     tax due in  2013 dollars $   143073   174075     percentage of taxable income= 40.88%    for tax year 1943  percentage of 1954 taxes  82.19%
taxable income in 2013 dollars $    400000     tax due in  2013 dollars $   173573   209251     percentage of taxable income= 43.39%    for tax year 1943  percentage of 1954 taxes  82.95%
taxable income in 2013 dollars $    450000     tax due in  2013 dollars $   204768   245884     percentage of taxable income= 45.50%    for tax year 1943  percentage of 1954 taxes  83.28%
taxable income in 2013 dollars $    500000     tax due in  2013 dollars $   236768   283384     percentage of taxable income= 47.35%    for tax year 1943  percentage of 1954 taxes  83.55%
taxable income in 2013 dollars $    600000     tax due in  2013 dollars $   303824   360943     percentage of taxable income= 50.64%    for tax year 1943  percentage of 1954 taxes  84.18%
taxable income in 2013 dollars $    700000     tax due in  2013 dollars $   373816   442341     percentage of taxable income= 53.40%    for tax year 1943  percentage of 1954 taxes  84.51%
taxable income in 2013 dollars $    800000     tax due in  2013 dollars $   445816   527179     percentage of taxable income= 55.73%    for tax year 1943  percentage of 1954 taxes  84.57%
taxable income in 2013 dollars $    900000     tax due in  2013 dollars $   520807   615023     percentage of taxable income= 57.87%    for tax year 1943  percentage of 1954 taxes  84.68%
taxable income in 2013 dollars $   1000000     tax due in  2013 dollars $   597796   704023     percentage of taxable income= 59.78%    for tax year 1943  percentage of 1954 taxes  84.91%

1944 tax rate schedule with ORIGINAL dollar figures(for SINGLE taxpayer)
Historical data for the marginal rates was obtained at the Tax Foundation website at [U.S. Federal Individual Income Tax Rates History, 1913-2011 (Nominal and Inflation-Adjusted Brackets)]
Computation of the actual taxes due and the effective overall tax rate at each level were done by Jeff Sagarin.

Not over $   2000 ................................... 23.00% of the taxable income      23.00% effective overall tax rate
Over $   2000 but not over $   4000    $    460, plus 25.00% of excess over $   2000    23.67% effective overall tax rate(computed on tax on middle of income range)
Over $   4000 but not over $   6000    $    960, plus 29.00% of excess over $   4000    25.00% effective overall tax rate(computed on tax on middle of income range)
Over $   6000 but not over $   8000    $   1540, plus 33.00% of excess over $   6000    26.71% effective overall tax rate(computed on tax on middle of income range)
Over $   8000 but not over $  10000    $   2200, plus 37.00% of excess over $   8000    28.56% effective overall tax rate(computed on tax on middle of income range)
Over $  10000 but not over $  12000    $   2940, plus 41.00% of excess over $  10000    30.45% effective overall tax rate(computed on tax on middle of income range)
Over $  12000 but not over $  14000    $   3760, plus 46.00% of excess over $  12000    32.46% effective overall tax rate(computed on tax on middle of income range)
Over $  14000 but not over $  16000    $   4680, plus 50.00% of excess over $  14000    34.53% effective overall tax rate(computed on tax on middle of income range)
Over $  16000 but not over $  18000    $   5680, plus 53.00% of excess over $  16000    36.53% effective overall tax rate(computed on tax on middle of income range)
Over $  18000 but not over $  20000    $   6740, plus 56.00% of excess over $  18000    38.42% effective overall tax rate(computed on tax on middle of income range)
Over $  20000 but not over $  22000    $   7860, plus 59.00% of excess over $  20000    40.24% effective overall tax rate(computed on tax on middle of income range)
Over $  22000 but not over $  26000    $   9040, plus 62.00% of excess over $  22000    42.83% effective overall tax rate(computed on tax on middle of income range)
Over $  26000 but not over $  32000    $  11520, plus 65.00% of excess over $  26000    46.45% effective overall tax rate(computed on tax on middle of income range)
Over $  32000 but not over $  38000    $  15420, plus 68.00% of excess over $  32000    49.89% effective overall tax rate(computed on tax on middle of income range)
Over $  38000 but not over $  44000    $  19500, plus 72.00% of excess over $  38000    52.83% effective overall tax rate(computed on tax on middle of income range)
Over $  44000 but not over $  50000    $  23820, plus 75.00% of excess over $  44000    55.47% effective overall tax rate(computed on tax on middle of income range)
Over $  50000 but not over $  60000    $  28320, plus 78.00% of excess over $  50000    58.58% effective overall tax rate(computed on tax on middle of income range)
Over $  60000 but not over $  70000    $  36120, plus 81.00% of excess over $  60000    61.80% effective overall tax rate(computed on tax on middle of income range)
Over $  70000 but not over $  80000    $  44220, plus 84.00% of excess over $  70000    64.56% effective overall tax rate(computed on tax on middle of income range)
Over $  80000 but not over $  90000    $  52620, plus 87.00% of excess over $  80000    67.02% effective overall tax rate(computed on tax on middle of income range)
Over $  90000 but not over $ 100000    $  61320, plus 90.00% of excess over $  90000    69.28% effective overall tax rate(computed on tax on middle of income range)
Over $ 100000 but not over $ 150000    $  70320, plus 92.00% of excess over $ 100000    74.66% effective overall tax rate(computed on tax on middle of income range)
Over $ 150000 but not over $ 200000    $ 116320, plus 93.00% of excess over $ 150000    79.75% effective overall tax rate(computed on tax on middle of income range)
Over $ 200000 ........................ $ 162820, plus 94.00% of excess over $ 200000    81.41% <=> 94.00% effective overall tax rate as income goes to infinity
1944 tax rate schedule with figures INFLATION-ADJUSTED to 2013 dollars(for SINGLE taxpayer) ... the multiplier is 13.111136363 based on the average of the last 12 monthly figures through and including April 2013 released in mid-May 2013)
Inflation multiplier was determined from Bureau of Labor Statistics at [CPI Inflation Calculator | Historical Consumer Price Index]
Computation of the actual taxes due and the effective overall tax rate at each level were done by Jeff Sagarin.

Not over $  26222 ................................... 23.00% of the taxable income      23.00% effective overall tax rate
Over $  26222 but not over $  52445    $   6031, plus 25.00% of excess over $  26222    23.67% effective overall tax rate(computed on tax on middle of income range)
Over $  52445 but not over $  78667    $  12587, plus 29.00% of excess over $  52445    25.00% effective overall tax rate(computed on tax on middle of income range)
Over $  78667 but not over $ 104889    $  20191, plus 33.00% of excess over $  78667    26.71% effective overall tax rate(computed on tax on middle of income range)
Over $ 104889 but not over $ 131111    $  28844, plus 37.00% of excess over $ 104889    28.56% effective overall tax rate(computed on tax on middle of income range)
Over $ 131111 but not over $ 157334    $  38547, plus 41.00% of excess over $ 131111    30.45% effective overall tax rate(computed on tax on middle of income range)
Over $ 157334 but not over $ 183556    $  49298, plus 46.00% of excess over $ 157334    32.46% effective overall tax rate(computed on tax on middle of income range)
Over $ 183556 but not over $ 209778    $  61360, plus 50.00% of excess over $ 183556    34.53% effective overall tax rate(computed on tax on middle of income range)
Over $ 209778 but not over $ 236000    $  74471, plus 53.00% of excess over $ 209778    36.53% effective overall tax rate(computed on tax on middle of income range)
Over $ 236000 but not over $ 262223    $  88369, plus 56.00% of excess over $ 236000    38.42% effective overall tax rate(computed on tax on middle of income range)
Over $ 262223 but not over $ 288445    $ 103054, plus 59.00% of excess over $ 262223    40.24% effective overall tax rate(computed on tax on middle of income range)
Over $ 288445 but not over $ 340890    $ 118525, plus 62.00% of excess over $ 288445    42.83% effective overall tax rate(computed on tax on middle of income range)
Over $ 340890 but not over $ 419556    $ 151040, plus 65.00% of excess over $ 340890    46.45% effective overall tax rate(computed on tax on middle of income range)
Over $ 419556 but not over $ 498223    $ 202174, plus 68.00% of excess over $ 419556    49.89% effective overall tax rate(computed on tax on middle of income range)
Over $ 498223 but not over $ 576890    $ 255667, plus 72.00% of excess over $ 498223    52.83% effective overall tax rate(computed on tax on middle of income range)
Over $ 576890 but not over $ 655557    $ 312307, plus 75.00% of excess over $ 576890    55.47% effective overall tax rate(computed on tax on middle of income range)
Over $ 655557 but not over $ 786668    $ 371307, plus 78.00% of excess over $ 655557    58.58% effective overall tax rate(computed on tax on middle of income range)
Over $ 786668 but not over $ 917780    $ 473574, plus 81.00% of excess over $ 786668    61.80% effective overall tax rate(computed on tax on middle of income range)
Over $ 917780 but not over $1048891    $ 579774, plus 84.00% of excess over $ 917780    64.56% effective overall tax rate(computed on tax on middle of income range)
Over $1048891 but not over $1180002    $ 689908, plus 87.00% of excess over $1048891    67.02% effective overall tax rate(computed on tax on middle of income range)
Over $1180002 but not over $1311114    $ 803975, plus 90.00% of excess over $1180002    69.28% effective overall tax rate(computed on tax on middle of income range)
Over $1311114 but not over $1966670    $ 921975, plus 92.00% of excess over $1311114    74.66% effective overall tax rate(computed on tax on middle of income range)
Over $1966670 but not over $2622227    $1525087, plus 93.00% of excess over $1966670    79.75% effective overall tax rate(computed on tax on middle of income range)
Over $2622227 ........................ $2134755, plus 94.00% of excess over $2622227    81.41% <=> 94.00% effective overall tax rate as income goes to infinity
                                                                              1944     1954                                               using exact decimal values of taxes (not integers)
                                                                              ____     ____
taxable income in 2013 dollars $     10000     tax due in  2013 dollars $     2300     2000     percentage of taxable income= 23.00%    for tax year 1944  percentage of 1954 taxes  115.00%
taxable income in 2013 dollars $     20000     tax due in  2013 dollars $     4600     4057     percentage of taxable income= 23.00%    for tax year 1944  percentage of 1954 taxes  113.39%
taxable income in 2013 dollars $     30000     tax due in  2013 dollars $     6976     6257     percentage of taxable income= 23.25%    for tax year 1944  percentage of 1954 taxes  111.49%
taxable income in 2013 dollars $     40000     tax due in  2013 dollars $     9476     8684     percentage of taxable income= 23.69%    for tax year 1944  percentage of 1954 taxes  109.11%
taxable income in 2013 dollars $     50000     tax due in  2013 dollars $    11976    11284     percentage of taxable income= 23.95%    for tax year 1944  percentage of 1954 taxes  106.13%
taxable income in 2013 dollars $     60000     tax due in  2013 dollars $    14778    14226     percentage of taxable income= 24.63%    for tax year 1944  percentage of 1954 taxes  103.88%
taxable income in 2013 dollars $     70000     tax due in  2013 dollars $    17678    17280     percentage of taxable income= 25.25%    for tax year 1944  percentage of 1954 taxes  102.30%
taxable income in 2013 dollars $     80000     tax due in  2013 dollars $    20631    20680     percentage of taxable income= 25.79%    for tax year 1944  percentage of 1954 taxes  99.76%
taxable income in 2013 dollars $     90000     tax due in  2013 dollars $    23931    24249     percentage of taxable income= 26.59%    for tax year 1944  percentage of 1954 taxes  98.69%
taxable income in 2013 dollars $    100000     tax due in  2013 dollars $    27231    28049     percentage of taxable income= 27.23%    for tax year 1944  percentage of 1954 taxes  97.08%
taxable income in 2013 dollars $    150000     tax due in  2013 dollars $    46291    50981     percentage of taxable income= 30.86%    for tax year 1944  percentage of 1954 taxes  90.80%
taxable income in 2013 dollars $    200000     tax due in  2013 dollars $    69582    78540     percentage of taxable income= 34.79%    for tax year 1944  percentage of 1954 taxes  88.59%
taxable income in 2013 dollars $    250000     tax due in  2013 dollars $    96209   108849     percentage of taxable income= 38.48%    for tax year 1944  percentage of 1954 taxes  88.39%
taxable income in 2013 dollars $    300000     tax due in  2013 dollars $   125689   140614     percentage of taxable income= 41.90%    for tax year 1944  percentage of 1954 taxes  89.39%
taxable income in 2013 dollars $    350000     tax due in  2013 dollars $   156962   174075     percentage of taxable income= 44.85%    for tax year 1944  percentage of 1954 taxes  90.17%
taxable income in 2013 dollars $    400000     tax due in  2013 dollars $   189462   209251     percentage of taxable income= 47.37%    for tax year 1944  percentage of 1954 taxes  90.54%
taxable income in 2013 dollars $    450000     tax due in  2013 dollars $   222875   245884     percentage of taxable income= 49.53%    for tax year 1944  percentage of 1954 taxes  90.64%
taxable income in 2013 dollars $    500000     tax due in  2013 dollars $   256946   283384     percentage of taxable income= 51.39%    for tax year 1944  percentage of 1954 taxes  90.67%
taxable income in 2013 dollars $    600000     tax due in  2013 dollars $   329640   360943     percentage of taxable income= 54.94%    for tax year 1944  percentage of 1954 taxes  91.33%
taxable income in 2013 dollars $    700000     tax due in  2013 dollars $   405973   442341     percentage of taxable income= 58.00%    for tax year 1944  percentage of 1954 taxes  91.78%
taxable income in 2013 dollars $    800000     tax due in  2013 dollars $   484373   527179     percentage of taxable income= 60.55%    for tax year 1944  percentage of 1954 taxes  91.88%
taxable income in 2013 dollars $    900000     tax due in  2013 dollars $   565373   615023     percentage of taxable income= 62.82%    for tax year 1944  percentage of 1954 taxes  91.93%
taxable income in 2013 dollars $   1000000     tax due in  2013 dollars $   648840   704023     percentage of taxable income= 64.88%    for tax year 1944  percentage of 1954 taxes  92.16%

1945 tax rate schedule with ORIGINAL dollar figures(for SINGLE taxpayer)
Historical data for the marginal rates was obtained at the Tax Foundation website at [U.S. Federal Individual Income Tax Rates History, 1913-2011 (Nominal and Inflation-Adjusted Brackets)]
Computation of the actual taxes due and the effective overall tax rate at each level were done by Jeff Sagarin.

Not over $   2000 ................................... 23.00% of the taxable income      23.00% effective overall tax rate
Over $   2000 but not over $   4000    $    460, plus 25.00% of excess over $   2000    23.67% effective overall tax rate(computed on tax on middle of income range)
Over $   4000 but not over $   6000    $    960, plus 29.00% of excess over $   4000    25.00% effective overall tax rate(computed on tax on middle of income range)
Over $   6000 but not over $   8000    $   1540, plus 33.00% of excess over $   6000    26.71% effective overall tax rate(computed on tax on middle of income range)
Over $   8000 but not over $  10000    $   2200, plus 37.00% of excess over $   8000    28.56% effective overall tax rate(computed on tax on middle of income range)
Over $  10000 but not over $  12000    $   2940, plus 41.00% of excess over $  10000    30.45% effective overall tax rate(computed on tax on middle of income range)
Over $  12000 but not over $  14000    $   3760, plus 46.00% of excess over $  12000    32.46% effective overall tax rate(computed on tax on middle of income range)
Over $  14000 but not over $  16000    $   4680, plus 50.00% of excess over $  14000    34.53% effective overall tax rate(computed on tax on middle of income range)
Over $  16000 but not over $  18000    $   5680, plus 53.00% of excess over $  16000    36.53% effective overall tax rate(computed on tax on middle of income range)
Over $  18000 but not over $  20000    $   6740, plus 56.00% of excess over $  18000    38.42% effective overall tax rate(computed on tax on middle of income range)
Over $  20000 but not over $  22000    $   7860, plus 59.00% of excess over $  20000    40.24% effective overall tax rate(computed on tax on middle of income range)
Over $  22000 but not over $  26000    $   9040, plus 62.00% of excess over $  22000    42.83% effective overall tax rate(computed on tax on middle of income range)
Over $  26000 but not over $  32000    $  11520, plus 65.00% of excess over $  26000    46.45% effective overall tax rate(computed on tax on middle of income range)
Over $  32000 but not over $  38000    $  15420, plus 68.00% of excess over $  32000    49.89% effective overall tax rate(computed on tax on middle of income range)
Over $  38000 but not over $  44000    $  19500, plus 72.00% of excess over $  38000    52.83% effective overall tax rate(computed on tax on middle of income range)
Over $  44000 but not over $  50000    $  23820, plus 75.00% of excess over $  44000    55.47% effective overall tax rate(computed on tax on middle of income range)
Over $  50000 but not over $  60000    $  28320, plus 78.00% of excess over $  50000    58.58% effective overall tax rate(computed on tax on middle of income range)
Over $  60000 but not over $  70000    $  36120, plus 81.00% of excess over $  60000    61.80% effective overall tax rate(computed on tax on middle of income range)
Over $  70000 but not over $  80000    $  44220, plus 84.00% of excess over $  70000    64.56% effective overall tax rate(computed on tax on middle of income range)
Over $  80000 but not over $  90000    $  52620, plus 87.00% of excess over $  80000    67.02% effective overall tax rate(computed on tax on middle of income range)
Over $  90000 but not over $ 100000    $  61320, plus 90.00% of excess over $  90000    69.28% effective overall tax rate(computed on tax on middle of income range)
Over $ 100000 but not over $ 150000    $  70320, plus 92.00% of excess over $ 100000    74.66% effective overall tax rate(computed on tax on middle of income range)
Over $ 150000 but not over $ 200000    $ 116320, plus 93.00% of excess over $ 150000    79.75% effective overall tax rate(computed on tax on middle of income range)
Over $ 200000 ........................ $ 162820, plus 94.00% of excess over $ 200000    81.41% <=> 94.00% effective overall tax rate as income goes to infinity
1945 tax rate schedule with figures INFLATION-ADJUSTED to 2013 dollars(for SINGLE taxpayer) ... the multiplier is 12.819777778 based on the average of the last 12 monthly figures through and including April 2013 released in mid-May 2013)
Inflation multiplier was determined from Bureau of Labor Statistics at [CPI Inflation Calculator | Historical Consumer Price Index]
Computation of the actual taxes due and the effective overall tax rate at each level were done by Jeff Sagarin.

Not over $  25640 ................................... 23.00% of the taxable income      23.00% effective overall tax rate
Over $  25640 but not over $  51279    $   5897, plus 25.00% of excess over $  25640    23.67% effective overall tax rate(computed on tax on middle of income range)
Over $  51279 but not over $  76919    $  12307, plus 29.00% of excess over $  51279    25.00% effective overall tax rate(computed on tax on middle of income range)
Over $  76919 but not over $ 102558    $  19742, plus 33.00% of excess over $  76919    26.71% effective overall tax rate(computed on tax on middle of income range)
Over $ 102558 but not over $ 128198    $  28204, plus 37.00% of excess over $ 102558    28.56% effective overall tax rate(computed on tax on middle of income range)
Over $ 128198 but not over $ 153837    $  37690, plus 41.00% of excess over $ 128198    30.45% effective overall tax rate(computed on tax on middle of income range)
Over $ 153837 but not over $ 179477    $  48202, plus 46.00% of excess over $ 153837    32.46% effective overall tax rate(computed on tax on middle of income range)
Over $ 179477 but not over $ 205116    $  59997, plus 50.00% of excess over $ 179477    34.53% effective overall tax rate(computed on tax on middle of income range)
Over $ 205116 but not over $ 230756    $  72816, plus 53.00% of excess over $ 205116    36.53% effective overall tax rate(computed on tax on middle of income range)
Over $ 230756 but not over $ 256396    $  86405, plus 56.00% of excess over $ 230756    38.42% effective overall tax rate(computed on tax on middle of income range)
Over $ 256396 but not over $ 282035    $ 100763, plus 59.00% of excess over $ 256396    40.24% effective overall tax rate(computed on tax on middle of income range)
Over $ 282035 but not over $ 333314    $ 115891, plus 62.00% of excess over $ 282035    42.83% effective overall tax rate(computed on tax on middle of income range)
Over $ 333314 but not over $ 410233    $ 147684, plus 65.00% of excess over $ 333314    46.45% effective overall tax rate(computed on tax on middle of income range)
Over $ 410233 but not over $ 487152    $ 197681, plus 68.00% of excess over $ 410233    49.89% effective overall tax rate(computed on tax on middle of income range)
Over $ 487152 but not over $ 564070    $ 249986, plus 72.00% of excess over $ 487152    52.83% effective overall tax rate(computed on tax on middle of income range)
Over $ 564070 but not over $ 640989    $ 305367, plus 75.00% of excess over $ 564070    55.47% effective overall tax rate(computed on tax on middle of income range)
Over $ 640989 but not over $ 769187    $ 363056, plus 78.00% of excess over $ 640989    58.58% effective overall tax rate(computed on tax on middle of income range)
Over $ 769187 but not over $ 897384    $ 463050, plus 81.00% of excess over $ 769187    61.80% effective overall tax rate(computed on tax on middle of income range)
Over $ 897384 but not over $1025582    $ 566891, plus 84.00% of excess over $ 897384    64.56% effective overall tax rate(computed on tax on middle of income range)
Over $1025582 but not over $1153780    $ 674577, plus 87.00% of excess over $1025582    67.02% effective overall tax rate(computed on tax on middle of income range)
Over $1153780 but not over $1281978    $ 786109, plus 90.00% of excess over $1153780    69.28% effective overall tax rate(computed on tax on middle of income range)
Over $1281978 but not over $1922967    $ 901487, plus 92.00% of excess over $1281978    74.66% effective overall tax rate(computed on tax on middle of income range)
Over $1922967 but not over $2563956    $1491197, plus 93.00% of excess over $1922967    79.75% effective overall tax rate(computed on tax on middle of income range)
Over $2563956 ........................ $2087316, plus 94.00% of excess over $2563956    81.41% <=> 94.00% effective overall tax rate as income goes to infinity
                                                                              1945     1954                                               using exact decimal values of taxes (not integers)
                                                                              ____     ____
taxable income in 2013 dollars $     10000     tax due in  2013 dollars $     2300     2000     percentage of taxable income= 23.00%    for tax year 1945  percentage of 1954 taxes  115.00%
taxable income in 2013 dollars $     20000     tax due in  2013 dollars $     4600     4057     percentage of taxable income= 23.00%    for tax year 1945  percentage of 1954 taxes  113.39%
taxable income in 2013 dollars $     30000     tax due in  2013 dollars $     6987     6257     percentage of taxable income= 23.29%    for tax year 1945  percentage of 1954 taxes  111.67%
taxable income in 2013 dollars $     40000     tax due in  2013 dollars $     9487     8684     percentage of taxable income= 23.72%    for tax year 1945  percentage of 1954 taxes  109.24%
taxable income in 2013 dollars $     50000     tax due in  2013 dollars $    11987    11284     percentage of taxable income= 23.97%    for tax year 1945  percentage of 1954 taxes  106.23%
taxable income in 2013 dollars $     60000     tax due in  2013 dollars $    14836    14226     percentage of taxable income= 24.73%    for tax year 1945  percentage of 1954 taxes  104.29%
taxable income in 2013 dollars $     70000     tax due in  2013 dollars $    17736    17280     percentage of taxable income= 25.34%    for tax year 1945  percentage of 1954 taxes  102.64%
taxable income in 2013 dollars $     80000     tax due in  2013 dollars $    20759    20680     percentage of taxable income= 25.95%    for tax year 1945  percentage of 1954 taxes  100.38%
taxable income in 2013 dollars $     90000     tax due in  2013 dollars $    24059    24249     percentage of taxable income= 26.73%    for tax year 1945  percentage of 1954 taxes  99.22%
taxable income in 2013 dollars $    100000     tax due in  2013 dollars $    27359    28049     percentage of taxable income= 27.36%    for tax year 1945  percentage of 1954 taxes  97.54%
taxable income in 2013 dollars $    150000     tax due in  2013 dollars $    46629    50981     percentage of taxable income= 31.09%    for tax year 1945  percentage of 1954 taxes  91.46%
taxable income in 2013 dollars $    200000     tax due in  2013 dollars $    70258    78540     percentage of taxable income= 35.13%    for tax year 1945  percentage of 1954 taxes  89.46%
taxable income in 2013 dollars $    250000     tax due in  2013 dollars $    97182   108849     percentage of taxable income= 38.87%    for tax year 1945  percentage of 1954 taxes  89.28%
taxable income in 2013 dollars $    300000     tax due in  2013 dollars $   127029   140614     percentage of taxable income= 42.34%    for tax year 1945  percentage of 1954 taxes  90.34%
taxable income in 2013 dollars $    350000     tax due in  2013 dollars $   158530   174075     percentage of taxable income= 45.29%    for tax year 1945  percentage of 1954 taxes  91.07%
taxable income in 2013 dollars $    400000     tax due in  2013 dollars $   191030   209251     percentage of taxable income= 47.76%    for tax year 1945  percentage of 1954 taxes  91.29%
taxable income in 2013 dollars $    450000     tax due in  2013 dollars $   224723   245884     percentage of taxable income= 49.94%    for tax year 1945  percentage of 1954 taxes  91.39%
taxable income in 2013 dollars $    500000     tax due in  2013 dollars $   259237   283384     percentage of taxable income= 51.85%    for tax year 1945  percentage of 1954 taxes  91.48%
taxable income in 2013 dollars $    600000     tax due in  2013 dollars $   332314   360943     percentage of taxable income= 55.39%    for tax year 1945  percentage of 1954 taxes  92.07%
taxable income in 2013 dollars $    700000     tax due in  2013 dollars $   409085   442341     percentage of taxable income= 58.44%    for tax year 1945  percentage of 1954 taxes  92.48%
taxable income in 2013 dollars $    800000     tax due in  2013 dollars $   488009   527179     percentage of taxable income= 61.00%    for tax year 1945  percentage of 1954 taxes  92.57%
taxable income in 2013 dollars $    900000     tax due in  2013 dollars $   569088   615023     percentage of taxable income= 63.23%    for tax year 1945  percentage of 1954 taxes  92.53%
taxable income in 2013 dollars $   1000000     tax due in  2013 dollars $   653088   704023     percentage of taxable income= 65.31%    for tax year 1945  percentage of 1954 taxes  92.77%

1946 tax rate schedule with ORIGINAL dollar figures(for SINGLE taxpayer)
Historical data for the marginal rates was obtained at the Tax Foundation website at [U.S. Federal Individual Income Tax Rates History, 1913-2011 (Nominal and Inflation-Adjusted Brackets)]
Computation of the actual taxes due and the effective overall tax rate at each level were done by Jeff Sagarin.

Not over $   2000 ................................... 20.00% of the taxable income      20.00% effective overall tax rate
Over $   2000 but not over $   4000    $    400, plus 22.00% of excess over $   2000    20.67% effective overall tax rate(computed on tax on middle of income range)
Over $   4000 but not over $   6000    $    840, plus 26.00% of excess over $   4000    22.00% effective overall tax rate(computed on tax on middle of income range)
Over $   6000 but not over $   8000    $   1360, plus 30.00% of excess over $   6000    23.71% effective overall tax rate(computed on tax on middle of income range)
Over $   8000 but not over $  10000    $   1960, plus 34.00% of excess over $   8000    25.56% effective overall tax rate(computed on tax on middle of income range)
Over $  10000 but not over $  12000    $   2640, plus 38.00% of excess over $  10000    27.45% effective overall tax rate(computed on tax on middle of income range)
Over $  12000 but not over $  14000    $   3400, plus 43.00% of excess over $  12000    29.46% effective overall tax rate(computed on tax on middle of income range)
Over $  14000 but not over $  16000    $   4260, plus 47.00% of excess over $  14000    31.53% effective overall tax rate(computed on tax on middle of income range)
Over $  16000 but not over $  18000    $   5200, plus 50.00% of excess over $  16000    33.53% effective overall tax rate(computed on tax on middle of income range)
Over $  18000 but not over $  20000    $   6200, plus 53.00% of excess over $  18000    35.42% effective overall tax rate(computed on tax on middle of income range)
Over $  20000 but not over $  22000    $   7260, plus 56.00% of excess over $  20000    37.24% effective overall tax rate(computed on tax on middle of income range)
Over $  22000 but not over $  26000    $   8380, plus 59.00% of excess over $  22000    39.83% effective overall tax rate(computed on tax on middle of income range)
Over $  26000 but not over $  32000    $  10740, plus 62.00% of excess over $  26000    43.45% effective overall tax rate(computed on tax on middle of income range)
Over $  32000 but not over $  38000    $  14460, plus 65.00% of excess over $  32000    46.89% effective overall tax rate(computed on tax on middle of income range)
Over $  38000 but not over $  44000    $  18360, plus 69.00% of excess over $  38000    49.83% effective overall tax rate(computed on tax on middle of income range)
Over $  44000 but not over $  50000    $  22500, plus 72.00% of excess over $  44000    52.47% effective overall tax rate(computed on tax on middle of income range)
Over $  50000 but not over $  60000    $  26820, plus 75.00% of excess over $  50000    55.58% effective overall tax rate(computed on tax on middle of income range)
Over $  60000 but not over $  70000    $  34320, plus 78.00% of excess over $  60000    58.80% effective overall tax rate(computed on tax on middle of income range)
Over $  70000 but not over $  80000    $  42120, plus 81.00% of excess over $  70000    61.56% effective overall tax rate(computed on tax on middle of income range)
Over $  80000 but not over $  90000    $  50220, plus 84.00% of excess over $  80000    64.02% effective overall tax rate(computed on tax on middle of income range)
Over $  90000 but not over $ 100000    $  58620, plus 87.00% of excess over $  90000    66.28% effective overall tax rate(computed on tax on middle of income range)
Over $ 100000 but not over $ 150000    $  67320, plus 89.00% of excess over $ 100000    71.66% effective overall tax rate(computed on tax on middle of income range)
Over $ 150000 but not over $ 200000    $ 111820, plus 90.00% of excess over $ 150000    76.75% effective overall tax rate(computed on tax on middle of income range)
Over $ 200000 ........................ $ 156820, plus 91.00% of excess over $ 200000    78.41% <=> 91.00% effective overall tax rate as income goes to infinity
1946 tax rate schedule with figures INFLATION-ADJUSTED to 2013 dollars(for SINGLE taxpayer) ... the multiplier is 11.833641026 based on the average of the last 12 monthly figures through and including April 2013 released in mid-May 2013)
Inflation multiplier was determined from Bureau of Labor Statistics at [CPI Inflation Calculator | Historical Consumer Price Index]
Computation of the actual taxes due and the effective overall tax rate at each level were done by Jeff Sagarin.

Not over $  23667 ................................... 20.00% of the taxable income      20.00% effective overall tax rate
Over $  23667 but not over $  47335    $   4733, plus 22.00% of excess over $  23667    20.67% effective overall tax rate(computed on tax on middle of income range)
Over $  47335 but not over $  71002    $   9940, plus 26.00% of excess over $  47335    22.00% effective overall tax rate(computed on tax on middle of income range)
Over $  71002 but not over $  94669    $  16094, plus 30.00% of excess over $  71002    23.71% effective overall tax rate(computed on tax on middle of income range)
Over $  94669 but not over $ 118336    $  23194, plus 34.00% of excess over $  94669    25.56% effective overall tax rate(computed on tax on middle of income range)
Over $ 118336 but not over $ 142004    $  31241, plus 38.00% of excess over $ 118336    27.45% effective overall tax rate(computed on tax on middle of income range)
Over $ 142004 but not over $ 165671    $  40234, plus 43.00% of excess over $ 142004    29.46% effective overall tax rate(computed on tax on middle of income range)
Over $ 165671 but not over $ 189338    $  50411, plus 47.00% of excess over $ 165671    31.53% effective overall tax rate(computed on tax on middle of income range)
Over $ 189338 but not over $ 213006    $  61535, plus 50.00% of excess over $ 189338    33.53% effective overall tax rate(computed on tax on middle of income range)
Over $ 213006 but not over $ 236673    $  73369, plus 53.00% of excess over $ 213006    35.42% effective overall tax rate(computed on tax on middle of income range)
Over $ 236673 but not over $ 260340    $  85912, plus 56.00% of excess over $ 236673    37.24% effective overall tax rate(computed on tax on middle of income range)
Over $ 260340 but not over $ 307675    $  99166, plus 59.00% of excess over $ 260340    39.83% effective overall tax rate(computed on tax on middle of income range)
Over $ 307675 but not over $ 378677    $ 127093, plus 62.00% of excess over $ 307675    43.45% effective overall tax rate(computed on tax on middle of income range)
Over $ 378677 but not over $ 449678    $ 171114, plus 65.00% of excess over $ 378677    46.89% effective overall tax rate(computed on tax on middle of income range)
Over $ 449678 but not over $ 520680    $ 217266, plus 69.00% of excess over $ 449678    49.83% effective overall tax rate(computed on tax on middle of income range)
Over $ 520680 but not over $ 591682    $ 266257, plus 72.00% of excess over $ 520680    52.47% effective overall tax rate(computed on tax on middle of income range)
Over $ 591682 but not over $ 710018    $ 317378, plus 75.00% of excess over $ 591682    55.58% effective overall tax rate(computed on tax on middle of income range)
Over $ 710018 but not over $ 828355    $ 406131, plus 78.00% of excess over $ 710018    58.80% effective overall tax rate(computed on tax on middle of income range)
Over $ 828355 but not over $ 946691    $ 498433, plus 81.00% of excess over $ 828355    61.56% effective overall tax rate(computed on tax on middle of income range)
Over $ 946691 but not over $1065028    $ 594285, plus 84.00% of excess over $ 946691    64.02% effective overall tax rate(computed on tax on middle of income range)
Over $1065028 but not over $1183364    $ 693688, plus 87.00% of excess over $1065028    66.28% effective overall tax rate(computed on tax on middle of income range)
Over $1183364 but not over $1775046    $ 796641, plus 89.00% of excess over $1183364    71.66% effective overall tax rate(computed on tax on middle of income range)
Over $1775046 but not over $2366728    $1323238, plus 90.00% of excess over $1775046    76.75% effective overall tax rate(computed on tax on middle of income range)
Over $2366728 ........................ $1855752, plus 91.00% of excess over $2366728    78.41% <=> 91.00% effective overall tax rate as income goes to infinity
                                                                              1946     1954                                               using exact decimal values of taxes (not integers)
                                                                              ____     ____
taxable income in 2013 dollars $     10000     tax due in  2013 dollars $     2000     2000     percentage of taxable income= 20.00%    for tax year 1946  percentage of 1954 taxes  100.00%
taxable income in 2013 dollars $     20000     tax due in  2013 dollars $     4000     4057     percentage of taxable income= 20.00%    for tax year 1946  percentage of 1954 taxes  98.60%
taxable income in 2013 dollars $     30000     tax due in  2013 dollars $     6127     6257     percentage of taxable income= 20.42%    for tax year 1946  percentage of 1954 taxes  97.92%
taxable income in 2013 dollars $     40000     tax due in  2013 dollars $     8327     8684     percentage of taxable income= 20.82%    for tax year 1946  percentage of 1954 taxes  95.88%
taxable income in 2013 dollars $     50000     tax due in  2013 dollars $    10633    11284     percentage of taxable income= 21.27%    for tax year 1946  percentage of 1954 taxes  94.23%
taxable income in 2013 dollars $     60000     tax due in  2013 dollars $    13233    14226     percentage of taxable income= 22.06%    for tax year 1946  percentage of 1954 taxes  93.02%
taxable income in 2013 dollars $     70000     tax due in  2013 dollars $    15833    17280     percentage of taxable income= 22.62%    for tax year 1946  percentage of 1954 taxes  91.63%
taxable income in 2013 dollars $     80000     tax due in  2013 dollars $    18793    20680     percentage of taxable income= 23.49%    for tax year 1946  percentage of 1954 taxes  90.87%
taxable income in 2013 dollars $     90000     tax due in  2013 dollars $    21793    24249     percentage of taxable income= 24.21%    for tax year 1946  percentage of 1954 taxes  89.87%
taxable income in 2013 dollars $    100000     tax due in  2013 dollars $    25006    28049     percentage of taxable income= 25.01%    for tax year 1946  percentage of 1954 taxes  89.15%
taxable income in 2013 dollars $    150000     tax due in  2013 dollars $    43673    50981     percentage of taxable income= 29.12%    for tax year 1946  percentage of 1954 taxes  85.67%
taxable income in 2013 dollars $    200000     tax due in  2013 dollars $    66866    78540     percentage of taxable income= 33.43%    for tax year 1946  percentage of 1954 taxes  85.14%
taxable income in 2013 dollars $    250000     tax due in  2013 dollars $    93375   108849     percentage of taxable income= 37.35%    for tax year 1946  percentage of 1954 taxes  85.78%
taxable income in 2013 dollars $    300000     tax due in  2013 dollars $   122565   140614     percentage of taxable income= 40.86%    for tax year 1946  percentage of 1954 taxes  87.16%
taxable income in 2013 dollars $    350000     tax due in  2013 dollars $   153335   174075     percentage of taxable income= 43.81%    for tax year 1946  percentage of 1954 taxes  88.09%
taxable income in 2013 dollars $    400000     tax due in  2013 dollars $   184975   209251     percentage of taxable income= 46.24%    for tax year 1946  percentage of 1954 taxes  88.40%
taxable income in 2013 dollars $    450000     tax due in  2013 dollars $   217488   245884     percentage of taxable income= 48.33%    for tax year 1946  percentage of 1954 taxes  88.45%
taxable income in 2013 dollars $    500000     tax due in  2013 dollars $   251988   283384     percentage of taxable income= 50.40%    for tax year 1946  percentage of 1954 taxes  88.92%
taxable income in 2013 dollars $    600000     tax due in  2013 dollars $   323617   360943     percentage of taxable income= 53.94%    for tax year 1946  percentage of 1954 taxes  89.66%
taxable income in 2013 dollars $    700000     tax due in  2013 dollars $   398617   442341     percentage of taxable income= 56.95%    for tax year 1946  percentage of 1954 taxes  90.12%
taxable income in 2013 dollars $    800000     tax due in  2013 dollars $   476316   527179     percentage of taxable income= 59.54%    for tax year 1946  percentage of 1954 taxes  90.35%
taxable income in 2013 dollars $    900000     tax due in  2013 dollars $   556466   615023     percentage of taxable income= 61.83%    for tax year 1946  percentage of 1954 taxes  90.48%
taxable income in 2013 dollars $   1000000     tax due in  2013 dollars $   639065   704023     percentage of taxable income= 63.91%    for tax year 1946  percentage of 1954 taxes  90.77%

1947 tax rate schedule with ORIGINAL dollar figures(for SINGLE taxpayer)
Historical data for the marginal rates was obtained at the Tax Foundation website at [U.S. Federal Individual Income Tax Rates History, 1913-2011 (Nominal and Inflation-Adjusted Brackets)]
Computation of the actual taxes due and the effective overall tax rate at each level were done by Jeff Sagarin.

Not over $   2000 ................................... 20.00% of the taxable income      20.00% effective overall tax rate
Over $   2000 but not over $   4000    $    400, plus 22.00% of excess over $   2000    20.67% effective overall tax rate(computed on tax on middle of income range)
Over $   4000 but not over $   6000    $    840, plus 26.00% of excess over $   4000    22.00% effective overall tax rate(computed on tax on middle of income range)
Over $   6000 but not over $   8000    $   1360, plus 30.00% of excess over $   6000    23.71% effective overall tax rate(computed on tax on middle of income range)
Over $   8000 but not over $  10000    $   1960, plus 34.00% of excess over $   8000    25.56% effective overall tax rate(computed on tax on middle of income range)
Over $  10000 but not over $  12000    $   2640, plus 38.00% of excess over $  10000    27.45% effective overall tax rate(computed on tax on middle of income range)
Over $  12000 but not over $  14000    $   3400, plus 43.00% of excess over $  12000    29.46% effective overall tax rate(computed on tax on middle of income range)
Over $  14000 but not over $  16000    $   4260, plus 47.00% of excess over $  14000    31.53% effective overall tax rate(computed on tax on middle of income range)
Over $  16000 but not over $  18000    $   5200, plus 50.00% of excess over $  16000    33.53% effective overall tax rate(computed on tax on middle of income range)
Over $  18000 but not over $  20000    $   6200, plus 53.00% of excess over $  18000    35.42% effective overall tax rate(computed on tax on middle of income range)
Over $  20000 but not over $  22000    $   7260, plus 56.00% of excess over $  20000    37.24% effective overall tax rate(computed on tax on middle of income range)
Over $  22000 but not over $  26000    $   8380, plus 59.00% of excess over $  22000    39.83% effective overall tax rate(computed on tax on middle of income range)
Over $  26000 but not over $  32000    $  10740, plus 62.00% of excess over $  26000    43.45% effective overall tax rate(computed on tax on middle of income range)
Over $  32000 but not over $  38000    $  14460, plus 65.00% of excess over $  32000    46.89% effective overall tax rate(computed on tax on middle of income range)
Over $  38000 but not over $  44000    $  18360, plus 69.00% of excess over $  38000    49.83% effective overall tax rate(computed on tax on middle of income range)
Over $  44000 but not over $  50000    $  22500, plus 72.00% of excess over $  44000    52.47% effective overall tax rate(computed on tax on middle of income range)
Over $  50000 but not over $  60000    $  26820, plus 75.00% of excess over $  50000    55.58% effective overall tax rate(computed on tax on middle of income range)
Over $  60000 but not over $  70000    $  34320, plus 78.00% of excess over $  60000    58.80% effective overall tax rate(computed on tax on middle of income range)
Over $  70000 but not over $  80000    $  42120, plus 81.00% of excess over $  70000    61.56% effective overall tax rate(computed on tax on middle of income range)
Over $  80000 but not over $  90000    $  50220, plus 84.00% of excess over $  80000    64.02% effective overall tax rate(computed on tax on middle of income range)
Over $  90000 but not over $ 100000    $  58620, plus 87.00% of excess over $  90000    66.28% effective overall tax rate(computed on tax on middle of income range)
Over $ 100000 but not over $ 150000    $  67320, plus 89.00% of excess over $ 100000    71.66% effective overall tax rate(computed on tax on middle of income range)
Over $ 150000 but not over $ 200000    $ 111820, plus 90.00% of excess over $ 150000    76.75% effective overall tax rate(computed on tax on middle of income range)
Over $ 200000 ........................ $ 156820, plus 91.00% of excess over $ 200000    78.41% <=> 91.00% effective overall tax rate as income goes to infinity
1947 tax rate schedule with figures INFLATION-ADJUSTED to 2013 dollars(for SINGLE taxpayer) ... the multiplier is 10.347802691 based on the average of the last 12 monthly figures through and including April 2013 released in mid-May 2013)
Inflation multiplier was determined from Bureau of Labor Statistics at [CPI Inflation Calculator | Historical Consumer Price Index]
Computation of the actual taxes due and the effective overall tax rate at each level were done by Jeff Sagarin.

Not over $  20696 ................................... 20.00% of the taxable income      20.00% effective overall tax rate
Over $  20696 but not over $  41391    $   4139, plus 22.00% of excess over $  20696    20.67% effective overall tax rate(computed on tax on middle of income range)
Over $  41391 but not over $  62087    $   8692, plus 26.00% of excess over $  41391    22.00% effective overall tax rate(computed on tax on middle of income range)
Over $  62087 but not over $  82782    $  14073, plus 30.00% of excess over $  62087    23.71% effective overall tax rate(computed on tax on middle of income range)
Over $  82782 but not over $ 103478    $  20282, plus 34.00% of excess over $  82782    25.56% effective overall tax rate(computed on tax on middle of income range)
Over $ 103478 but not over $ 124174    $  27318, plus 38.00% of excess over $ 103478    27.45% effective overall tax rate(computed on tax on middle of income range)
Over $ 124174 but not over $ 144869    $  35183, plus 43.00% of excess over $ 124174    29.46% effective overall tax rate(computed on tax on middle of income range)
Over $ 144869 but not over $ 165565    $  44082, plus 47.00% of excess over $ 144869    31.53% effective overall tax rate(computed on tax on middle of income range)
Over $ 165565 but not over $ 186260    $  53809, plus 50.00% of excess over $ 165565    33.53% effective overall tax rate(computed on tax on middle of income range)
Over $ 186260 but not over $ 206956    $  64156, plus 53.00% of excess over $ 186260    35.42% effective overall tax rate(computed on tax on middle of income range)
Over $ 206956 but not over $ 227652    $  75125, plus 56.00% of excess over $ 206956    37.24% effective overall tax rate(computed on tax on middle of income range)
Over $ 227652 but not over $ 269043    $  86715, plus 59.00% of excess over $ 227652    39.83% effective overall tax rate(computed on tax on middle of income range)
Over $ 269043 but not over $ 331130    $ 111135, plus 62.00% of excess over $ 269043    43.45% effective overall tax rate(computed on tax on middle of income range)
Over $ 331130 but not over $ 393217    $ 149629, plus 65.00% of excess over $ 331130    46.89% effective overall tax rate(computed on tax on middle of income range)
Over $ 393217 but not over $ 455303    $ 189986, plus 69.00% of excess over $ 393217    49.83% effective overall tax rate(computed on tax on middle of income range)
Over $ 455303 but not over $ 517390    $ 232826, plus 72.00% of excess over $ 455303    52.47% effective overall tax rate(computed on tax on middle of income range)
Over $ 517390 but not over $ 620868    $ 277528, plus 75.00% of excess over $ 517390    55.58% effective overall tax rate(computed on tax on middle of income range)
Over $ 620868 but not over $ 724346    $ 355137, plus 78.00% of excess over $ 620868    58.80% effective overall tax rate(computed on tax on middle of income range)
Over $ 724346 but not over $ 827824    $ 435849, plus 81.00% of excess over $ 724346    61.56% effective overall tax rate(computed on tax on middle of income range)
Over $ 827824 but not over $ 931302    $ 519667, plus 84.00% of excess over $ 827824    64.02% effective overall tax rate(computed on tax on middle of income range)
Over $ 931302 but not over $1034780    $ 606588, plus 87.00% of excess over $ 931302    66.28% effective overall tax rate(computed on tax on middle of income range)
Over $1034780 but not over $1552170    $ 696614, plus 89.00% of excess over $1034780    71.66% effective overall tax rate(computed on tax on middle of income range)
Over $1552170 but not over $2069561    $1157091, plus 90.00% of excess over $1552170    76.75% effective overall tax rate(computed on tax on middle of income range)
Over $2069561 ........................ $1622742, plus 91.00% of excess over $2069561    78.41% <=> 91.00% effective overall tax rate as income goes to infinity
                                                                              1947     1954                                               using exact decimal values of taxes (not integers)
                                                                              ____     ____
taxable income in 2013 dollars $     10000     tax due in  2013 dollars $     2000     2000     percentage of taxable income= 20.00%    for tax year 1947  percentage of 1954 taxes  100.00%
taxable income in 2013 dollars $     20000     tax due in  2013 dollars $     4000     4057     percentage of taxable income= 20.00%    for tax year 1947  percentage of 1954 taxes  98.60%
taxable income in 2013 dollars $     30000     tax due in  2013 dollars $     6186     6257     percentage of taxable income= 20.62%    for tax year 1947  percentage of 1954 taxes  98.87%
taxable income in 2013 dollars $     40000     tax due in  2013 dollars $     8386     8684     percentage of taxable income= 20.97%    for tax year 1947  percentage of 1954 taxes  96.57%
taxable income in 2013 dollars $     50000     tax due in  2013 dollars $    10930    11284     percentage of taxable income= 21.86%    for tax year 1947  percentage of 1954 taxes  96.86%
taxable income in 2013 dollars $     60000     tax due in  2013 dollars $    13530    14226     percentage of taxable income= 22.55%    for tax year 1947  percentage of 1954 taxes  95.11%
taxable income in 2013 dollars $     70000     tax due in  2013 dollars $    16447    17280     percentage of taxable income= 23.50%    for tax year 1947  percentage of 1954 taxes  95.18%
taxable income in 2013 dollars $     80000     tax due in  2013 dollars $    19447    20680     percentage of taxable income= 24.31%    for tax year 1947  percentage of 1954 taxes  94.04%
taxable income in 2013 dollars $     90000     tax due in  2013 dollars $    22736    24249     percentage of taxable income= 25.26%    for tax year 1947  percentage of 1954 taxes  93.76%
taxable income in 2013 dollars $    100000     tax due in  2013 dollars $    26136    28049     percentage of taxable income= 26.14%    for tax year 1947  percentage of 1954 taxes  93.18%
taxable income in 2013 dollars $    150000     tax due in  2013 dollars $    46493    50981     percentage of taxable income= 31.00%    for tax year 1947  percentage of 1954 taxes  91.20%
taxable income in 2013 dollars $    200000     tax due in  2013 dollars $    71438    78540     percentage of taxable income= 35.72%    for tax year 1947  percentage of 1954 taxes  90.96%
taxable income in 2013 dollars $    250000     tax due in  2013 dollars $    99900   108849     percentage of taxable income= 39.96%    for tax year 1947  percentage of 1954 taxes  91.78%
taxable income in 2013 dollars $    300000     tax due in  2013 dollars $   130329   140614     percentage of taxable income= 43.44%    for tax year 1947  percentage of 1954 taxes  92.69%
taxable income in 2013 dollars $    350000     tax due in  2013 dollars $   161895   174075     percentage of taxable income= 46.26%    for tax year 1947  percentage of 1954 taxes  93.00%
taxable income in 2013 dollars $    400000     tax due in  2013 dollars $   194666   209251     percentage of taxable income= 48.67%    for tax year 1947  percentage of 1954 taxes  93.03%
taxable income in 2013 dollars $    450000     tax due in  2013 dollars $   229166   245884     percentage of taxable income= 50.93%    for tax year 1947  percentage of 1954 taxes  93.20%
taxable income in 2013 dollars $    500000     tax due in  2013 dollars $   265007   283384     percentage of taxable income= 53.00%    for tax year 1947  percentage of 1954 taxes  93.52%
taxable income in 2013 dollars $    600000     tax due in  2013 dollars $   339485   360943     percentage of taxable income= 56.58%    for tax year 1947  percentage of 1954 taxes  94.06%
taxable income in 2013 dollars $    700000     tax due in  2013 dollars $   416859   442341     percentage of taxable income= 59.55%    for tax year 1947  percentage of 1954 taxes  94.24%
taxable income in 2013 dollars $    800000     tax due in  2013 dollars $   497129   527179     percentage of taxable income= 62.14%    for tax year 1947  percentage of 1954 taxes  94.30%
taxable income in 2013 dollars $    900000     tax due in  2013 dollars $   580294   615023     percentage of taxable income= 64.48%    for tax year 1947  percentage of 1954 taxes  94.35%
taxable income in 2013 dollars $   1000000     tax due in  2013 dollars $   666355   704023     percentage of taxable income= 66.64%    for tax year 1947  percentage of 1954 taxes  94.65%

1948 tax rate schedule with ORIGINAL dollar figures(for SINGLE taxpayer)
Historical data for the marginal rates was obtained at the Tax Foundation website at [U.S. Federal Individual Income Tax Rates History, 1913-2011 (Nominal and Inflation-Adjusted Brackets)]
Computation of the actual taxes due and the effective overall tax rate at each level were done by Jeff Sagarin.

Not over $   2000 ................................... 20.00% of the taxable income      20.00% effective overall tax rate
Over $   2000 but not over $   4000    $    400, plus 22.00% of excess over $   2000    20.67% effective overall tax rate(computed on tax on middle of income range)
Over $   4000 but not over $   6000    $    840, plus 26.00% of excess over $   4000    22.00% effective overall tax rate(computed on tax on middle of income range)
Over $   6000 but not over $   8000    $   1360, plus 30.00% of excess over $   6000    23.71% effective overall tax rate(computed on tax on middle of income range)
Over $   8000 but not over $  10000    $   1960, plus 34.00% of excess over $   8000    25.56% effective overall tax rate(computed on tax on middle of income range)
Over $  10000 but not over $  12000    $   2640, plus 38.00% of excess over $  10000    27.45% effective overall tax rate(computed on tax on middle of income range)
Over $  12000 but not over $  14000    $   3400, plus 43.00% of excess over $  12000    29.46% effective overall tax rate(computed on tax on middle of income range)
Over $  14000 but not over $  16000    $   4260, plus 47.00% of excess over $  14000    31.53% effective overall tax rate(computed on tax on middle of income range)
Over $  16000 but not over $  18000    $   5200, plus 50.00% of excess over $  16000    33.53% effective overall tax rate(computed on tax on middle of income range)
Over $  18000 but not over $  20000    $   6200, plus 53.00% of excess over $  18000    35.42% effective overall tax rate(computed on tax on middle of income range)
Over $  20000 but not over $  22000    $   7260, plus 56.00% of excess over $  20000    37.24% effective overall tax rate(computed on tax on middle of income range)
Over $  22000 but not over $  26000    $   8380, plus 59.00% of excess over $  22000    39.83% effective overall tax rate(computed on tax on middle of income range)
Over $  26000 but not over $  32000    $  10740, plus 62.00% of excess over $  26000    43.45% effective overall tax rate(computed on tax on middle of income range)
Over $  32000 but not over $  38000    $  14460, plus 65.00% of excess over $  32000    46.89% effective overall tax rate(computed on tax on middle of income range)
Over $  38000 but not over $  44000    $  18360, plus 69.00% of excess over $  38000    49.83% effective overall tax rate(computed on tax on middle of income range)
Over $  44000 but not over $  50000    $  22500, plus 72.00% of excess over $  44000    52.47% effective overall tax rate(computed on tax on middle of income range)
Over $  50000 but not over $  60000    $  26820, plus 75.00% of excess over $  50000    55.58% effective overall tax rate(computed on tax on middle of income range)
Over $  60000 but not over $  70000    $  34320, plus 78.00% of excess over $  60000    58.80% effective overall tax rate(computed on tax on middle of income range)
Over $  70000 but not over $  80000    $  42120, plus 81.00% of excess over $  70000    61.56% effective overall tax rate(computed on tax on middle of income range)
Over $  80000 but not over $  90000    $  50220, plus 84.00% of excess over $  80000    64.02% effective overall tax rate(computed on tax on middle of income range)
Over $  90000 but not over $ 100000    $  58620, plus 87.00% of excess over $  90000    66.28% effective overall tax rate(computed on tax on middle of income range)
Over $ 100000 but not over $ 150000    $  67320, plus 89.00% of excess over $ 100000    71.66% effective overall tax rate(computed on tax on middle of income range)
Over $ 150000 but not over $ 200000    $ 111820, plus 90.00% of excess over $ 150000    76.75% effective overall tax rate(computed on tax on middle of income range)
Over $ 200000 ........................ $ 156820, plus 91.00% of excess over $ 200000    78.41% <=> 91.00% effective overall tax rate as income goes to infinity
1948 tax rate schedule with figures INFLATION-ADJUSTED to 2013 dollars(for SINGLE taxpayer) ... the multiplier is 9.574937760 based on the average of the last 12 monthly figures through and including April 2013 released in mid-May 2013)
Inflation multiplier was determined from Bureau of Labor Statistics at [CPI Inflation Calculator | Historical Consumer Price Index]
Computation of the actual taxes due and the effective overall tax rate at each level were done by Jeff Sagarin.

Not over $  19150 ................................... 20.00% of the taxable income      20.00% effective overall tax rate
Over $  19150 but not over $  38300    $   3830, plus 22.00% of excess over $  19150    20.67% effective overall tax rate(computed on tax on middle of income range)
Over $  38300 but not over $  57450    $   8043, plus 26.00% of excess over $  38300    22.00% effective overall tax rate(computed on tax on middle of income range)
Over $  57450 but not over $  76600    $  13022, plus 30.00% of excess over $  57450    23.71% effective overall tax rate(computed on tax on middle of income range)
Over $  76600 but not over $  95749    $  18767, plus 34.00% of excess over $  76600    25.56% effective overall tax rate(computed on tax on middle of income range)
Over $  95749 but not over $ 114899    $  25278, plus 38.00% of excess over $  95749    27.45% effective overall tax rate(computed on tax on middle of income range)
Over $ 114899 but not over $ 134049    $  32555, plus 43.00% of excess over $ 114899    29.46% effective overall tax rate(computed on tax on middle of income range)
Over $ 134049 but not over $ 153199    $  40789, plus 47.00% of excess over $ 134049    31.53% effective overall tax rate(computed on tax on middle of income range)
Over $ 153199 but not over $ 172349    $  49790, plus 50.00% of excess over $ 153199    33.53% effective overall tax rate(computed on tax on middle of income range)
Over $ 172349 but not over $ 191499    $  59365, plus 53.00% of excess over $ 172349    35.42% effective overall tax rate(computed on tax on middle of income range)
Over $ 191499 but not over $ 210649    $  69514, plus 56.00% of excess over $ 191499    37.24% effective overall tax rate(computed on tax on middle of income range)
Over $ 210649 but not over $ 248948    $  80238, plus 59.00% of excess over $ 210649    39.83% effective overall tax rate(computed on tax on middle of income range)
Over $ 248948 but not over $ 306398    $ 102835, plus 62.00% of excess over $ 248948    43.45% effective overall tax rate(computed on tax on middle of income range)
Over $ 306398 but not over $ 363848    $ 138454, plus 65.00% of excess over $ 306398    46.89% effective overall tax rate(computed on tax on middle of income range)
Over $ 363848 but not over $ 421297    $ 175796, plus 69.00% of excess over $ 363848    49.83% effective overall tax rate(computed on tax on middle of income range)
Over $ 421297 but not over $ 478747    $ 215436, plus 72.00% of excess over $ 421297    52.47% effective overall tax rate(computed on tax on middle of income range)
Over $ 478747 but not over $ 574496    $ 256800, plus 75.00% of excess over $ 478747    55.58% effective overall tax rate(computed on tax on middle of income range)
Over $ 574496 but not over $ 670246    $ 328612, plus 78.00% of excess over $ 574496    58.80% effective overall tax rate(computed on tax on middle of income range)
Over $ 670246 but not over $ 765995    $ 403296, plus 81.00% of excess over $ 670246    61.56% effective overall tax rate(computed on tax on middle of income range)
Over $ 765995 but not over $ 861744    $ 480853, plus 84.00% of excess over $ 765995    64.02% effective overall tax rate(computed on tax on middle of income range)
Over $ 861744 but not over $ 957494    $ 561283, plus 87.00% of excess over $ 861744    66.28% effective overall tax rate(computed on tax on middle of income range)
Over $ 957494 but not over $1436241    $ 644585, plus 89.00% of excess over $ 957494    71.66% effective overall tax rate(computed on tax on middle of income range)
Over $1436241 but not over $1914988    $1070670, plus 90.00% of excess over $1436241    76.75% effective overall tax rate(computed on tax on middle of income range)
Over $1914988 ........................ $1501542, plus 91.00% of excess over $1914988    78.41% <=> 91.00% effective overall tax rate as income goes to infinity
                                                                              1948     1954                                               using exact decimal values of taxes (not integers)
                                                                              ____     ____
taxable income in 2013 dollars $     10000     tax due in  2013 dollars $     2000     2000     percentage of taxable income= 20.00%    for tax year 1948  percentage of 1954 taxes  100.00%
taxable income in 2013 dollars $     20000     tax due in  2013 dollars $     4017     4057     percentage of taxable income= 20.09%    for tax year 1948  percentage of 1954 taxes  99.02%
taxable income in 2013 dollars $     30000     tax due in  2013 dollars $     6217     6257     percentage of taxable income= 20.72%    for tax year 1948  percentage of 1954 taxes  99.36%
taxable income in 2013 dollars $     40000     tax due in  2013 dollars $     8485     8684     percentage of taxable income= 21.21%    for tax year 1948  percentage of 1954 taxes  97.70%
taxable income in 2013 dollars $     50000     tax due in  2013 dollars $    11085    11284     percentage of taxable income= 22.17%    for tax year 1948  percentage of 1954 taxes  98.23%
taxable income in 2013 dollars $     60000     tax due in  2013 dollars $    13787    14226     percentage of taxable income= 22.98%    for tax year 1948  percentage of 1954 taxes  96.92%
taxable income in 2013 dollars $     70000     tax due in  2013 dollars $    16787    17280     percentage of taxable income= 23.98%    for tax year 1948  percentage of 1954 taxes  97.14%
taxable income in 2013 dollars $     80000     tax due in  2013 dollars $    19923    20680     percentage of taxable income= 24.90%    for tax year 1948  percentage of 1954 taxes  96.34%
taxable income in 2013 dollars $     90000     tax due in  2013 dollars $    23323    24249     percentage of taxable income= 25.91%    for tax year 1948  percentage of 1954 taxes  96.18%
taxable income in 2013 dollars $    100000     tax due in  2013 dollars $    26893    28049     percentage of taxable income= 26.89%    for tax year 1948  percentage of 1954 taxes  95.88%
taxable income in 2013 dollars $    150000     tax due in  2013 dollars $    48286    50981     percentage of taxable income= 32.19%    for tax year 1948  percentage of 1954 taxes  94.71%
taxable income in 2013 dollars $    200000     tax due in  2013 dollars $    74275    78540     percentage of taxable income= 37.14%    for tax year 1948  percentage of 1954 taxes  94.57%
taxable income in 2013 dollars $    250000     tax due in  2013 dollars $   103487   108849     percentage of taxable income= 41.39%    for tax year 1948  percentage of 1954 taxes  95.07%
taxable income in 2013 dollars $    300000     tax due in  2013 dollars $   134487   140614     percentage of taxable income= 44.83%    for tax year 1948  percentage of 1954 taxes  95.64%
taxable income in 2013 dollars $    350000     tax due in  2013 dollars $   166795   174075     percentage of taxable income= 47.66%    for tax year 1948  percentage of 1954 taxes  95.82%
taxable income in 2013 dollars $    400000     tax due in  2013 dollars $   200741   209251     percentage of taxable income= 50.19%    for tax year 1948  percentage of 1954 taxes  95.93%
taxable income in 2013 dollars $    450000     tax due in  2013 dollars $   236102   245884     percentage of taxable income= 52.47%    for tax year 1948  percentage of 1954 taxes  96.02%
taxable income in 2013 dollars $    500000     tax due in  2013 dollars $   272740   283384     percentage of taxable income= 54.55%    for tax year 1948  percentage of 1954 taxes  96.24%
taxable income in 2013 dollars $    600000     tax due in  2013 dollars $   348505   360943     percentage of taxable income= 58.08%    for tax year 1948  percentage of 1954 taxes  96.55%
taxable income in 2013 dollars $    700000     tax due in  2013 dollars $   427397   442341     percentage of taxable income= 61.06%    for tax year 1948  percentage of 1954 taxes  96.62%
taxable income in 2013 dollars $    800000     tax due in  2013 dollars $   509418   527179     percentage of taxable income= 63.68%    for tax year 1948  percentage of 1954 taxes  96.63%
taxable income in 2013 dollars $    900000     tax due in  2013 dollars $   594565   615023     percentage of taxable income= 66.06%    for tax year 1948  percentage of 1954 taxes  96.67%
taxable income in 2013 dollars $   1000000     tax due in  2013 dollars $   682415   704023     percentage of taxable income= 68.24%    for tax year 1948  percentage of 1954 taxes  96.93%

1949 tax rate schedule with ORIGINAL dollar figures(for SINGLE taxpayer)
Historical data for the marginal rates was obtained at the Tax Foundation website at [U.S. Federal Individual Income Tax Rates History, 1913-2011 (Nominal and Inflation-Adjusted Brackets)]
Computation of the actual taxes due and the effective overall tax rate at each level were done by Jeff Sagarin.

Not over $   2000 ................................... 20.00% of the taxable income      20.00% effective overall tax rate
Over $   2000 but not over $   4000    $    400, plus 22.00% of excess over $   2000    20.67% effective overall tax rate(computed on tax on middle of income range)
Over $   4000 but not over $   6000    $    840, plus 26.00% of excess over $   4000    22.00% effective overall tax rate(computed on tax on middle of income range)
Over $   6000 but not over $   8000    $   1360, plus 30.00% of excess over $   6000    23.71% effective overall tax rate(computed on tax on middle of income range)
Over $   8000 but not over $  10000    $   1960, plus 34.00% of excess over $   8000    25.56% effective overall tax rate(computed on tax on middle of income range)
Over $  10000 but not over $  12000    $   2640, plus 38.00% of excess over $  10000    27.45% effective overall tax rate(computed on tax on middle of income range)
Over $  12000 but not over $  14000    $   3400, plus 43.00% of excess over $  12000    29.46% effective overall tax rate(computed on tax on middle of income range)
Over $  14000 but not over $  16000    $   4260, plus 47.00% of excess over $  14000    31.53% effective overall tax rate(computed on tax on middle of income range)
Over $  16000 but not over $  18000    $   5200, plus 50.00% of excess over $  16000    33.53% effective overall tax rate(computed on tax on middle of income range)
Over $  18000 but not over $  20000    $   6200, plus 53.00% of excess over $  18000    35.42% effective overall tax rate(computed on tax on middle of income range)
Over $  20000 but not over $  22000    $   7260, plus 56.00% of excess over $  20000    37.24% effective overall tax rate(computed on tax on middle of income range)
Over $  22000 but not over $  26000    $   8380, plus 59.00% of excess over $  22000    39.83% effective overall tax rate(computed on tax on middle of income range)
Over $  26000 but not over $  32000    $  10740, plus 62.00% of excess over $  26000    43.45% effective overall tax rate(computed on tax on middle of income range)
Over $  32000 but not over $  38000    $  14460, plus 65.00% of excess over $  32000    46.89% effective overall tax rate(computed on tax on middle of income range)
Over $  38000 but not over $  44000    $  18360, plus 69.00% of excess over $  38000    49.83% effective overall tax rate(computed on tax on middle of income range)
Over $  44000 but not over $  50000    $  22500, plus 72.00% of excess over $  44000    52.47% effective overall tax rate(computed on tax on middle of income range)
Over $  50000 but not over $  60000    $  26820, plus 75.00% of excess over $  50000    55.58% effective overall tax rate(computed on tax on middle of income range)
Over $  60000 but not over $  70000    $  34320, plus 78.00% of excess over $  60000    58.80% effective overall tax rate(computed on tax on middle of income range)
Over $  70000 but not over $  80000    $  42120, plus 81.00% of excess over $  70000    61.56% effective overall tax rate(computed on tax on middle of income range)
Over $  80000 but not over $  90000    $  50220, plus 84.00% of excess over $  80000    64.02% effective overall tax rate(computed on tax on middle of income range)
Over $  90000 but not over $ 100000    $  58620, plus 87.00% of excess over $  90000    66.28% effective overall tax rate(computed on tax on middle of income range)
Over $ 100000 but not over $ 150000    $  67320, plus 89.00% of excess over $ 100000    71.66% effective overall tax rate(computed on tax on middle of income range)
Over $ 150000 but not over $ 200000    $ 111820, plus 90.00% of excess over $ 150000    76.75% effective overall tax rate(computed on tax on middle of income range)
Over $ 200000 ........................ $ 156820, plus 91.00% of excess over $ 200000    78.41% <=> 91.00% effective overall tax rate as income goes to infinity
1949 tax rate schedule with figures INFLATION-ADJUSTED to 2013 dollars(for SINGLE taxpayer) ... the multiplier is 9.695630252 based on the average of the last 12 monthly figures through and including April 2013 released in mid-May 2013)
Inflation multiplier was determined from Bureau of Labor Statistics at [CPI Inflation Calculator | Historical Consumer Price Index]
Computation of the actual taxes due and the effective overall tax rate at each level were done by Jeff Sagarin.

Not over $  19391 ................................... 20.00% of the taxable income      20.00% effective overall tax rate
Over $  19391 but not over $  38783    $   3878, plus 22.00% of excess over $  19391    20.67% effective overall tax rate(computed on tax on middle of income range)
Over $  38783 but not over $  58174    $   8144, plus 26.00% of excess over $  38783    22.00% effective overall tax rate(computed on tax on middle of income range)
Over $  58174 but not over $  77565    $  13186, plus 30.00% of excess over $  58174    23.71% effective overall tax rate(computed on tax on middle of income range)
Over $  77565 but not over $  96956    $  19003, plus 34.00% of excess over $  77565    25.56% effective overall tax rate(computed on tax on middle of income range)
Over $  96956 but not over $ 116348    $  25596, plus 38.00% of excess over $  96956    27.45% effective overall tax rate(computed on tax on middle of income range)
Over $ 116348 but not over $ 135739    $  32965, plus 43.00% of excess over $ 116348    29.46% effective overall tax rate(computed on tax on middle of income range)
Over $ 135739 but not over $ 155130    $  41303, plus 47.00% of excess over $ 135739    31.53% effective overall tax rate(computed on tax on middle of income range)
Over $ 155130 but not over $ 174521    $  50417, plus 50.00% of excess over $ 155130    33.53% effective overall tax rate(computed on tax on middle of income range)
Over $ 174521 but not over $ 193913    $  60113, plus 53.00% of excess over $ 174521    35.42% effective overall tax rate(computed on tax on middle of income range)
Over $ 193913 but not over $ 213304    $  70390, plus 56.00% of excess over $ 193913    37.24% effective overall tax rate(computed on tax on middle of income range)
Over $ 213304 but not over $ 252086    $  81249, plus 59.00% of excess over $ 213304    39.83% effective overall tax rate(computed on tax on middle of income range)
Over $ 252086 but not over $ 310260    $ 104131, plus 62.00% of excess over $ 252086    43.45% effective overall tax rate(computed on tax on middle of income range)
Over $ 310260 but not over $ 368434    $ 140199, plus 65.00% of excess over $ 310260    46.89% effective overall tax rate(computed on tax on middle of income range)
Over $ 368434 but not over $ 426608    $ 178012, plus 69.00% of excess over $ 368434    49.83% effective overall tax rate(computed on tax on middle of income range)
Over $ 426608 but not over $ 484782    $ 218152, plus 72.00% of excess over $ 426608    52.47% effective overall tax rate(computed on tax on middle of income range)
Over $ 484782 but not over $ 581738    $ 260037, plus 75.00% of excess over $ 484782    55.58% effective overall tax rate(computed on tax on middle of income range)
Over $ 581738 but not over $ 678694    $ 332754, plus 78.00% of excess over $ 581738    58.80% effective overall tax rate(computed on tax on middle of income range)
Over $ 678694 but not over $ 775650    $ 408380, plus 81.00% of excess over $ 678694    61.56% effective overall tax rate(computed on tax on middle of income range)
Over $ 775650 but not over $ 872607    $ 486915, plus 84.00% of excess over $ 775650    64.02% effective overall tax rate(computed on tax on middle of income range)
Over $ 872607 but not over $ 969563    $ 568358, plus 87.00% of excess over $ 872607    66.28% effective overall tax rate(computed on tax on middle of income range)
Over $ 969563 but not over $1454345    $ 652710, plus 89.00% of excess over $ 969563    71.66% effective overall tax rate(computed on tax on middle of income range)
Over $1454345 but not over $1939126    $1084165, plus 90.00% of excess over $1454345    76.75% effective overall tax rate(computed on tax on middle of income range)
Over $1939126 ........................ $1520469, plus 91.00% of excess over $1939126    78.41% <=> 91.00% effective overall tax rate as income goes to infinity
                                                                              1949     1954                                               using exact decimal values of taxes (not integers)
                                                                              ____     ____
taxable income in 2013 dollars $     10000     tax due in  2013 dollars $     2000     2000     percentage of taxable income= 20.00%    for tax year 1949  percentage of 1954 taxes  100.00%
taxable income in 2013 dollars $     20000     tax due in  2013 dollars $     4012     4057     percentage of taxable income= 20.06%    for tax year 1949  percentage of 1954 taxes  98.90%
taxable income in 2013 dollars $     30000     tax due in  2013 dollars $     6212     6257     percentage of taxable income= 20.71%    for tax year 1949  percentage of 1954 taxes  99.29%
taxable income in 2013 dollars $     40000     tax due in  2013 dollars $     8461     8684     percentage of taxable income= 21.15%    for tax year 1949  percentage of 1954 taxes  97.43%
taxable income in 2013 dollars $     50000     tax due in  2013 dollars $    11061    11284     percentage of taxable income= 22.12%    for tax year 1949  percentage of 1954 taxes  98.02%
taxable income in 2013 dollars $     60000     tax due in  2013 dollars $    13734    14226     percentage of taxable income= 22.89%    for tax year 1949  percentage of 1954 taxes  96.54%
taxable income in 2013 dollars $     70000     tax due in  2013 dollars $    16734    17280     percentage of taxable income= 23.91%    for tax year 1949  percentage of 1954 taxes  96.84%
taxable income in 2013 dollars $     80000     tax due in  2013 dollars $    19831    20680     percentage of taxable income= 24.79%    for tax year 1949  percentage of 1954 taxes  95.89%
taxable income in 2013 dollars $     90000     tax due in  2013 dollars $    23231    24249     percentage of taxable income= 25.81%    for tax year 1949  percentage of 1954 taxes  95.80%
taxable income in 2013 dollars $    100000     tax due in  2013 dollars $    26753    28049     percentage of taxable income= 26.75%    for tax year 1949  percentage of 1954 taxes  95.38%
taxable income in 2013 dollars $    150000     tax due in  2013 dollars $    48006    50981     percentage of taxable income= 32.00%    for tax year 1949  percentage of 1954 taxes  94.17%
taxable income in 2013 dollars $    200000     tax due in  2013 dollars $    73799    78540     percentage of taxable income= 36.90%    for tax year 1949  percentage of 1954 taxes  93.96%
taxable income in 2013 dollars $    250000     tax due in  2013 dollars $   102900   108849     percentage of taxable income= 41.16%    for tax year 1949  percentage of 1954 taxes  94.53%
taxable income in 2013 dollars $    300000     tax due in  2013 dollars $   133838   140614     percentage of taxable income= 44.61%    for tax year 1949  percentage of 1954 taxes  95.18%
taxable income in 2013 dollars $    350000     tax due in  2013 dollars $   166030   174075     percentage of taxable income= 47.44%    for tax year 1949  percentage of 1954 taxes  95.38%
taxable income in 2013 dollars $    400000     tax due in  2013 dollars $   199792   209251     percentage of taxable income= 49.95%    for tax year 1949  percentage of 1954 taxes  95.48%
taxable income in 2013 dollars $    450000     tax due in  2013 dollars $   234994   245884     percentage of taxable income= 52.22%    for tax year 1949  percentage of 1954 taxes  95.57%
taxable income in 2013 dollars $    500000     tax due in  2013 dollars $   271451   283384     percentage of taxable income= 54.29%    for tax year 1949  percentage of 1954 taxes  95.79%
taxable income in 2013 dollars $    600000     tax due in  2013 dollars $   346999   360943     percentage of taxable income= 57.83%    for tax year 1949  percentage of 1954 taxes  96.14%
taxable income in 2013 dollars $    700000     tax due in  2013 dollars $   425638   442341     percentage of taxable income= 60.81%    for tax year 1949  percentage of 1954 taxes  96.22%
taxable income in 2013 dollars $    800000     tax due in  2013 dollars $   507368   527179     percentage of taxable income= 63.42%    for tax year 1949  percentage of 1954 taxes  96.24%
taxable income in 2013 dollars $    900000     tax due in  2013 dollars $   592190   615023     percentage of taxable income= 65.80%    for tax year 1949  percentage of 1954 taxes  96.29%
taxable income in 2013 dollars $   1000000     tax due in  2013 dollars $   679799   704023     percentage of taxable income= 67.98%    for tax year 1949  percentage of 1954 taxes  96.56%

1950 tax rate schedule with ORIGINAL dollar figures(for SINGLE taxpayer)
Historical data for the marginal rates was obtained at the Tax Foundation website at [U.S. Federal Individual Income Tax Rates History, 1913-2011 (Nominal and Inflation-Adjusted Brackets)]
Computation of the actual taxes due and the effective overall tax rate at each level were done by Jeff Sagarin.

Not over $   2000 ................................... 20.00% of the taxable income      20.00% effective overall tax rate
Over $   2000 but not over $   4000    $    400, plus 22.00% of excess over $   2000    20.67% effective overall tax rate(computed on tax on middle of income range)
Over $   4000 but not over $   6000    $    840, plus 26.00% of excess over $   4000    22.00% effective overall tax rate(computed on tax on middle of income range)
Over $   6000 but not over $   8000    $   1360, plus 30.00% of excess over $   6000    23.71% effective overall tax rate(computed on tax on middle of income range)
Over $   8000 but not over $  10000    $   1960, plus 34.00% of excess over $   8000    25.56% effective overall tax rate(computed on tax on middle of income range)
Over $  10000 but not over $  12000    $   2640, plus 38.00% of excess over $  10000    27.45% effective overall tax rate(computed on tax on middle of income range)
Over $  12000 but not over $  14000    $   3400, plus 43.00% of excess over $  12000    29.46% effective overall tax rate(computed on tax on middle of income range)
Over $  14000 but not over $  16000    $   4260, plus 47.00% of excess over $  14000    31.53% effective overall tax rate(computed on tax on middle of income range)
Over $  16000 but not over $  18000    $   5200, plus 50.00% of excess over $  16000    33.53% effective overall tax rate(computed on tax on middle of income range)
Over $  18000 but not over $  20000    $   6200, plus 53.00% of excess over $  18000    35.42% effective overall tax rate(computed on tax on middle of income range)
Over $  20000 but not over $  22000    $   7260, plus 56.00% of excess over $  20000    37.24% effective overall tax rate(computed on tax on middle of income range)
Over $  22000 but not over $  26000    $   8380, plus 59.00% of excess over $  22000    39.83% effective overall tax rate(computed on tax on middle of income range)
Over $  26000 but not over $  32000    $  10740, plus 62.00% of excess over $  26000    43.45% effective overall tax rate(computed on tax on middle of income range)
Over $  32000 but not over $  38000    $  14460, plus 65.00% of excess over $  32000    46.89% effective overall tax rate(computed on tax on middle of income range)
Over $  38000 but not over $  44000    $  18360, plus 69.00% of excess over $  38000    49.83% effective overall tax rate(computed on tax on middle of income range)
Over $  44000 but not over $  50000    $  22500, plus 72.00% of excess over $  44000    52.47% effective overall tax rate(computed on tax on middle of income range)
Over $  50000 but not over $  60000    $  26820, plus 75.00% of excess over $  50000    55.58% effective overall tax rate(computed on tax on middle of income range)
Over $  60000 but not over $  70000    $  34320, plus 78.00% of excess over $  60000    58.80% effective overall tax rate(computed on tax on middle of income range)
Over $  70000 but not over $  80000    $  42120, plus 81.00% of excess over $  70000    61.56% effective overall tax rate(computed on tax on middle of income range)
Over $  80000 but not over $  90000    $  50220, plus 84.00% of excess over $  80000    64.02% effective overall tax rate(computed on tax on middle of income range)
Over $  90000 but not over $ 100000    $  58620, plus 87.00% of excess over $  90000    66.28% effective overall tax rate(computed on tax on middle of income range)
Over $ 100000 but not over $ 150000    $  67320, plus 89.00% of excess over $ 100000    71.66% effective overall tax rate(computed on tax on middle of income range)
Over $ 150000 but not over $ 200000    $ 111820, plus 90.00% of excess over $ 150000    76.75% effective overall tax rate(computed on tax on middle of income range)
Over $ 200000 ........................ $ 156820, plus 91.00% of excess over $ 200000    78.41% <=> 91.00% effective overall tax rate as income goes to infinity
1950 tax rate schedule with figures INFLATION-ADJUSTED to 2013 dollars(for SINGLE taxpayer) ... the multiplier is 9.574937760 based on the average of the last 12 monthly figures through and including April 2013 released in mid-May 2013)
Inflation multiplier was determined from Bureau of Labor Statistics at [CPI Inflation Calculator | Historical Consumer Price Index]
Computation of the actual taxes due and the effective overall tax rate at each level were done by Jeff Sagarin.

Not over $  19150 ................................... 20.00% of the taxable income      20.00% effective overall tax rate
Over $  19150 but not over $  38300    $   3830, plus 22.00% of excess over $  19150    20.67% effective overall tax rate(computed on tax on middle of income range)
Over $  38300 but not over $  57450    $   8043, plus 26.00% of excess over $  38300    22.00% effective overall tax rate(computed on tax on middle of income range)
Over $  57450 but not over $  76600    $  13022, plus 30.00% of excess over $  57450    23.71% effective overall tax rate(computed on tax on middle of income range)
Over $  76600 but not over $  95749    $  18767, plus 34.00% of excess over $  76600    25.56% effective overall tax rate(computed on tax on middle of income range)
Over $  95749 but not over $ 114899    $  25278, plus 38.00% of excess over $  95749    27.45% effective overall tax rate(computed on tax on middle of income range)
Over $ 114899 but not over $ 134049    $  32555, plus 43.00% of excess over $ 114899    29.46% effective overall tax rate(computed on tax on middle of income range)
Over $ 134049 but not over $ 153199    $  40789, plus 47.00% of excess over $ 134049    31.53% effective overall tax rate(computed on tax on middle of income range)
Over $ 153199 but not over $ 172349    $  49790, plus 50.00% of excess over $ 153199    33.53% effective overall tax rate(computed on tax on middle of income range)
Over $ 172349 but not over $ 191499    $  59365, plus 53.00% of excess over $ 172349    35.42% effective overall tax rate(computed on tax on middle of income range)
Over $ 191499 but not over $ 210649    $  69514, plus 56.00% of excess over $ 191499    37.24% effective overall tax rate(computed on tax on middle of income range)
Over $ 210649 but not over $ 248948    $  80238, plus 59.00% of excess over $ 210649    39.83% effective overall tax rate(computed on tax on middle of income range)
Over $ 248948 but not over $ 306398    $ 102835, plus 62.00% of excess over $ 248948    43.45% effective overall tax rate(computed on tax on middle of income range)
Over $ 306398 but not over $ 363848    $ 138454, plus 65.00% of excess over $ 306398    46.89% effective overall tax rate(computed on tax on middle of income range)
Over $ 363848 but not over $ 421297    $ 175796, plus 69.00% of excess over $ 363848    49.83% effective overall tax rate(computed on tax on middle of income range)
Over $ 421297 but not over $ 478747    $ 215436, plus 72.00% of excess over $ 421297    52.47% effective overall tax rate(computed on tax on middle of income range)
Over $ 478747 but not over $ 574496    $ 256800, plus 75.00% of excess over $ 478747    55.58% effective overall tax rate(computed on tax on middle of income range)
Over $ 574496 but not over $ 670246    $ 328612, plus 78.00% of excess over $ 574496    58.80% effective overall tax rate(computed on tax on middle of income range)
Over $ 670246 but not over $ 765995    $ 403296, plus 81.00% of excess over $ 670246    61.56% effective overall tax rate(computed on tax on middle of income range)
Over $ 765995 but not over $ 861744    $ 480853, plus 84.00% of excess over $ 765995    64.02% effective overall tax rate(computed on tax on middle of income range)
Over $ 861744 but not over $ 957494    $ 561283, plus 87.00% of excess over $ 861744    66.28% effective overall tax rate(computed on tax on middle of income range)
Over $ 957494 but not over $1436241    $ 644585, plus 89.00% of excess over $ 957494    71.66% effective overall tax rate(computed on tax on middle of income range)
Over $1436241 but not over $1914988    $1070670, plus 90.00% of excess over $1436241    76.75% effective overall tax rate(computed on tax on middle of income range)
Over $1914988 ........................ $1501542, plus 91.00% of excess over $1914988    78.41% <=> 91.00% effective overall tax rate as income goes to infinity
                                                                              1950     1954                                               using exact decimal values of taxes (not integers)
                                                                              ____     ____
taxable income in 2013 dollars $     10000     tax due in  2013 dollars $     2000     2000     percentage of taxable income= 20.00%    for tax year 1950  percentage of 1954 taxes  100.00%
taxable income in 2013 dollars $     20000     tax due in  2013 dollars $     4017     4057     percentage of taxable income= 20.09%    for tax year 1950  percentage of 1954 taxes  99.02%
taxable income in 2013 dollars $     30000     tax due in  2013 dollars $     6217     6257     percentage of taxable income= 20.72%    for tax year 1950  percentage of 1954 taxes  99.36%
taxable income in 2013 dollars $     40000     tax due in  2013 dollars $     8485     8684     percentage of taxable income= 21.21%    for tax year 1950  percentage of 1954 taxes  97.70%
taxable income in 2013 dollars $     50000     tax due in  2013 dollars $    11085    11284     percentage of taxable income= 22.17%    for tax year 1950  percentage of 1954 taxes  98.23%
taxable income in 2013 dollars $     60000     tax due in  2013 dollars $    13787    14226     percentage of taxable income= 22.98%    for tax year 1950  percentage of 1954 taxes  96.92%
taxable income in 2013 dollars $     70000     tax due in  2013 dollars $    16787    17280     percentage of taxable income= 23.98%    for tax year 1950  percentage of 1954 taxes  97.14%
taxable income in 2013 dollars $     80000     tax due in  2013 dollars $    19923    20680     percentage of taxable income= 24.90%    for tax year 1950  percentage of 1954 taxes  96.34%
taxable income in 2013 dollars $     90000     tax due in  2013 dollars $    23323    24249     percentage of taxable income= 25.91%    for tax year 1950  percentage of 1954 taxes  96.18%
taxable income in 2013 dollars $    100000     tax due in  2013 dollars $    26893    28049     percentage of taxable income= 26.89%    for tax year 1950  percentage of 1954 taxes  95.88%
taxable income in 2013 dollars $    150000     tax due in  2013 dollars $    48286    50981     percentage of taxable income= 32.19%    for tax year 1950  percentage of 1954 taxes  94.71%
taxable income in 2013 dollars $    200000     tax due in  2013 dollars $    74275    78540     percentage of taxable income= 37.14%    for tax year 1950  percentage of 1954 taxes  94.57%
taxable income in 2013 dollars $    250000     tax due in  2013 dollars $   103487   108849     percentage of taxable income= 41.39%    for tax year 1950  percentage of 1954 taxes  95.07%
taxable income in 2013 dollars $    300000     tax due in  2013 dollars $   134487   140614     percentage of taxable income= 44.83%    for tax year 1950  percentage of 1954 taxes  95.64%
taxable income in 2013 dollars $    350000     tax due in  2013 dollars $   166795   174075     percentage of taxable income= 47.66%    for tax year 1950  percentage of 1954 taxes  95.82%
taxable income in 2013 dollars $    400000     tax due in  2013 dollars $   200741   209251     percentage of taxable income= 50.19%    for tax year 1950  percentage of 1954 taxes  95.93%
taxable income in 2013 dollars $    450000     tax due in  2013 dollars $   236102   245884     percentage of taxable income= 52.47%    for tax year 1950  percentage of 1954 taxes  96.02%
taxable income in 2013 dollars $    500000     tax due in  2013 dollars $   272740   283384     percentage of taxable income= 54.55%    for tax year 1950  percentage of 1954 taxes  96.24%
taxable income in 2013 dollars $    600000     tax due in  2013 dollars $   348505   360943     percentage of taxable income= 58.08%    for tax year 1950  percentage of 1954 taxes  96.55%
taxable income in 2013 dollars $    700000     tax due in  2013 dollars $   427397   442341     percentage of taxable income= 61.06%    for tax year 1950  percentage of 1954 taxes  96.62%
taxable income in 2013 dollars $    800000     tax due in  2013 dollars $   509418   527179     percentage of taxable income= 63.68%    for tax year 1950  percentage of 1954 taxes  96.63%
taxable income in 2013 dollars $    900000     tax due in  2013 dollars $   594565   615023     percentage of taxable income= 66.06%    for tax year 1950  percentage of 1954 taxes  96.67%
taxable income in 2013 dollars $   1000000     tax due in  2013 dollars $   682415   704023     percentage of taxable income= 68.24%    for tax year 1950  percentage of 1954 taxes  96.93%

1951 tax rate schedule with ORIGINAL dollar figures(for SINGLE taxpayer)
Historical data for the marginal rates was obtained at the Tax Foundation website at [U.S. Federal Individual Income Tax Rates History, 1913-2011 (Nominal and Inflation-Adjusted Brackets)]
Computation of the actual taxes due and the effective overall tax rate at each level were done by Jeff Sagarin.

Not over $   2000 ................................... 20.40% of the taxable income      20.40% effective overall tax rate
Over $   2000 but not over $   4000    $    408, plus 22.40% of excess over $   2000    21.07% effective overall tax rate(computed on tax on middle of income range)
Over $   4000 but not over $   6000    $    856, plus 27.00% of excess over $   4000    22.52% effective overall tax rate(computed on tax on middle of income range)
Over $   6000 but not over $   8000    $   1396, plus 30.00% of excess over $   6000    24.23% effective overall tax rate(computed on tax on middle of income range)
Over $   8000 but not over $  10000    $   1996, plus 35.00% of excess over $   8000    26.07% effective overall tax rate(computed on tax on middle of income range)
Over $  10000 but not over $  12000    $   2696, plus 39.00% of excess over $  10000    28.05% effective overall tax rate(computed on tax on middle of income range)
Over $  12000 but not over $  14000    $   3476, plus 43.00% of excess over $  12000    30.05% effective overall tax rate(computed on tax on middle of income range)
Over $  14000 but not over $  16000    $   4336, plus 48.00% of excess over $  14000    32.11% effective overall tax rate(computed on tax on middle of income range)
Over $  16000 but not over $  18000    $   5296, plus 51.00% of excess over $  16000    34.15% effective overall tax rate(computed on tax on middle of income range)
Over $  18000 but not over $  20000    $   6316, plus 54.00% of excess over $  18000    36.08% effective overall tax rate(computed on tax on middle of income range)
Over $  20000 but not over $  22000    $   7396, plus 57.00% of excess over $  20000    37.93% effective overall tax rate(computed on tax on middle of income range)
Over $  22000 but not over $  26000    $   8536, plus 60.00% of excess over $  22000    40.57% effective overall tax rate(computed on tax on middle of income range)
Over $  26000 but not over $  32000    $  10936, plus 63.00% of excess over $  26000    44.23% effective overall tax rate(computed on tax on middle of income range)
Over $  32000 but not over $  38000    $  14716, plus 66.00% of excess over $  32000    47.70% effective overall tax rate(computed on tax on middle of income range)
Over $  38000 but not over $  44000    $  18676, plus 69.00% of excess over $  38000    50.60% effective overall tax rate(computed on tax on middle of income range)
Over $  44000 but not over $  50000    $  22816, plus 73.00% of excess over $  44000    53.20% effective overall tax rate(computed on tax on middle of income range)
Over $  50000 but not over $  60000    $  27196, plus 75.00% of excess over $  50000    56.27% effective overall tax rate(computed on tax on middle of income range)
Over $  60000 but not over $  70000    $  34696, plus 78.00% of excess over $  60000    59.38% effective overall tax rate(computed on tax on middle of income range)
Over $  70000 but not over $  80000    $  42496, plus 82.00% of excess over $  70000    62.13% effective overall tax rate(computed on tax on middle of income range)
Over $  80000 but not over $  90000    $  50696, plus 84.00% of excess over $  80000    64.58% effective overall tax rate(computed on tax on middle of income range)
Over $  90000 but not over $ 100000    $  59096, plus 87.00% of excess over $  90000    66.79% effective overall tax rate(computed on tax on middle of income range)
Over $ 100000 but not over $ 150000    $  67796, plus 89.00% of excess over $ 100000    72.04% effective overall tax rate(computed on tax on middle of income range)
Over $ 150000 but not over $ 200000    $ 112296, plus 90.00% of excess over $ 150000    77.03% effective overall tax rate(computed on tax on middle of income range)
Over $ 200000 ........................ $ 157296, plus 91.00% of excess over $ 200000    78.65% <=> 91.00% effective overall tax rate as income goes to infinity
1951 tax rate schedule with figures INFLATION-ADJUSTED to 2013 dollars(for SINGLE taxpayer) ... the multiplier is 8.875230769 based on the average of the last 12 monthly figures through and including April 2013 released in mid-May 2013)
Inflation multiplier was determined from Bureau of Labor Statistics at [CPI Inflation Calculator | Historical Consumer Price Index]
Computation of the actual taxes due and the effective overall tax rate at each level were done by Jeff Sagarin.

Not over $  17750 ................................... 20.40% of the taxable income      20.40% effective overall tax rate
Over $  17750 but not over $  35501    $   3621, plus 22.40% of excess over $  17750    21.07% effective overall tax rate(computed on tax on middle of income range)
Over $  35501 but not over $  53251    $   7597, plus 27.00% of excess over $  35501    22.52% effective overall tax rate(computed on tax on middle of income range)
Over $  53251 but not over $  71002    $  12390, plus 30.00% of excess over $  53251    24.23% effective overall tax rate(computed on tax on middle of income range)
Over $  71002 but not over $  88752    $  17715, plus 35.00% of excess over $  71002    26.07% effective overall tax rate(computed on tax on middle of income range)
Over $  88752 but not over $ 106503    $  23928, plus 39.00% of excess over $  88752    28.05% effective overall tax rate(computed on tax on middle of income range)
Over $ 106503 but not over $ 124253    $  30850, plus 43.00% of excess over $ 106503    30.05% effective overall tax rate(computed on tax on middle of income range)
Over $ 124253 but not over $ 142004    $  38483, plus 48.00% of excess over $ 124253    32.11% effective overall tax rate(computed on tax on middle of income range)
Over $ 142004 but not over $ 159754    $  47003, plus 51.00% of excess over $ 142004    34.15% effective overall tax rate(computed on tax on middle of income range)
Over $ 159754 but not over $ 177505    $  56056, plus 54.00% of excess over $ 159754    36.08% effective overall tax rate(computed on tax on middle of income range)
Over $ 177505 but not over $ 195255    $  65641, plus 57.00% of excess over $ 177505    37.93% effective overall tax rate(computed on tax on middle of income range)
Over $ 195255 but not over $ 230756    $  75759, plus 60.00% of excess over $ 195255    40.57% effective overall tax rate(computed on tax on middle of income range)
Over $ 230756 but not over $ 284007    $  97060, plus 63.00% of excess over $ 230756    44.23% effective overall tax rate(computed on tax on middle of income range)
Over $ 284007 but not over $ 337259    $ 130608, plus 66.00% of excess over $ 284007    47.70% effective overall tax rate(computed on tax on middle of income range)
Over $ 337259 but not over $ 390510    $ 165754, plus 69.00% of excess over $ 337259    50.60% effective overall tax rate(computed on tax on middle of income range)
Over $ 390510 but not over $ 443762    $ 202497, plus 73.00% of excess over $ 390510    53.20% effective overall tax rate(computed on tax on middle of income range)
Over $ 443762 but not over $ 532514    $ 241371, plus 75.00% of excess over $ 443762    56.27% effective overall tax rate(computed on tax on middle of income range)
Over $ 532514 but not over $ 621266    $ 307935, plus 78.00% of excess over $ 532514    59.38% effective overall tax rate(computed on tax on middle of income range)
Over $ 621266 but not over $ 710018    $ 377162, plus 82.00% of excess over $ 621266    62.13% effective overall tax rate(computed on tax on middle of income range)
Over $ 710018 but not over $ 798771    $ 449939, plus 84.00% of excess over $ 710018    64.58% effective overall tax rate(computed on tax on middle of income range)
Over $ 798771 but not over $ 887523    $ 524491, plus 87.00% of excess over $ 798771    66.79% effective overall tax rate(computed on tax on middle of income range)
Over $ 887523 but not over $1331285    $ 601705, plus 89.00% of excess over $ 887523    72.04% effective overall tax rate(computed on tax on middle of income range)
Over $1331285 but not over $1775046    $ 996653, plus 90.00% of excess over $1331285    77.03% effective overall tax rate(computed on tax on middle of income range)
Over $1775046 ........................ $1396038, plus 91.00% of excess over $1775046    78.65% <=> 91.00% effective overall tax rate as income goes to infinity
                                                                              1951     1954                                               using exact decimal values of taxes (not integers)
                                                                              ____     ____
taxable income in 2013 dollars $     10000     tax due in  2013 dollars $     2040     2000     percentage of taxable income= 20.40%    for tax year 1951  percentage of 1954 taxes  102.00%
taxable income in 2013 dollars $     20000     tax due in  2013 dollars $     4125     4057     percentage of taxable income= 20.62%    for tax year 1951  percentage of 1954 taxes  101.68%
taxable income in 2013 dollars $     30000     tax due in  2013 dollars $     6365     6257     percentage of taxable income= 21.22%    for tax year 1951  percentage of 1954 taxes  101.73%
taxable income in 2013 dollars $     40000     tax due in  2013 dollars $     8812     8684     percentage of taxable income= 22.03%    for tax year 1951  percentage of 1954 taxes  101.47%
taxable income in 2013 dollars $     50000     tax due in  2013 dollars $    11512    11284     percentage of taxable income= 23.02%    for tax year 1951  percentage of 1954 taxes  102.02%
taxable income in 2013 dollars $     60000     tax due in  2013 dollars $    14414    14226     percentage of taxable income= 24.02%    for tax year 1951  percentage of 1954 taxes  101.33%
taxable income in 2013 dollars $     70000     tax due in  2013 dollars $    17414    17280     percentage of taxable income= 24.88%    for tax year 1951  percentage of 1954 taxes  100.77%
taxable income in 2013 dollars $     80000     tax due in  2013 dollars $    20864    20680     percentage of taxable income= 26.08%    for tax year 1951  percentage of 1954 taxes  100.89%
taxable income in 2013 dollars $     90000     tax due in  2013 dollars $    24414    24249     percentage of taxable income= 27.13%    for tax year 1951  percentage of 1954 taxes  100.68%
taxable income in 2013 dollars $    100000     tax due in  2013 dollars $    28314    28049     percentage of taxable income= 28.31%    for tax year 1951  percentage of 1954 taxes  100.94%
taxable income in 2013 dollars $    150000     tax due in  2013 dollars $    51081    50981     percentage of taxable income= 34.05%    for tax year 1951  percentage of 1954 taxes  100.20%
taxable income in 2013 dollars $    200000     tax due in  2013 dollars $    78606    78540     percentage of taxable income= 39.30%    for tax year 1951  percentage of 1954 taxes  100.08%
taxable income in 2013 dollars $    250000     tax due in  2013 dollars $   109183   108849     percentage of taxable income= 43.67%    for tax year 1951  percentage of 1954 taxes  100.31%
taxable income in 2013 dollars $    300000     tax due in  2013 dollars $   141163   140614     percentage of taxable income= 47.05%    for tax year 1951  percentage of 1954 taxes  100.39%
taxable income in 2013 dollars $    350000     tax due in  2013 dollars $   174545   174075     percentage of taxable income= 49.87%    for tax year 1951  percentage of 1954 taxes  100.27%
taxable income in 2013 dollars $    400000     tax due in  2013 dollars $   209425   209251     percentage of taxable income= 52.36%    for tax year 1951  percentage of 1954 taxes  100.08%
taxable income in 2013 dollars $    450000     tax due in  2013 dollars $   246050   245884     percentage of taxable income= 54.68%    for tax year 1951  percentage of 1954 taxes  100.07%
taxable income in 2013 dollars $    500000     tax due in  2013 dollars $   283550   283384     percentage of taxable income= 56.71%    for tax year 1951  percentage of 1954 taxes  100.06%
taxable income in 2013 dollars $    600000     tax due in  2013 dollars $   360574   360943     percentage of taxable income= 60.10%    for tax year 1951  percentage of 1954 taxes  99.90%
taxable income in 2013 dollars $    700000     tax due in  2013 dollars $   441724   442341     percentage of taxable income= 63.10%    for tax year 1951  percentage of 1954 taxes  99.86%
taxable income in 2013 dollars $    800000     tax due in  2013 dollars $   525560   527179     percentage of taxable income= 65.70%    for tax year 1951  percentage of 1954 taxes  99.69%
taxable income in 2013 dollars $    900000     tax due in  2013 dollars $   612810   615023     percentage of taxable income= 68.09%    for tax year 1951  percentage of 1954 taxes  99.64%
taxable income in 2013 dollars $   1000000     tax due in  2013 dollars $   701810   704023     percentage of taxable income= 70.18%    for tax year 1951  percentage of 1954 taxes  99.69%

1952 tax rate schedule with ORIGINAL dollar figures(for SINGLE taxpayer)
Historical data for the marginal rates was obtained at the Tax Foundation website at [U.S. Federal Individual Income Tax Rates History, 1913-2011 (Nominal and Inflation-Adjusted Brackets)]
Computation of the actual taxes due and the effective overall tax rate at each level were done by Jeff Sagarin.

Not over $   2000 ................................... 22.20% of the taxable income      22.20% effective overall tax rate
Over $   2000 but not over $   4000    $    444, plus 24.60% of excess over $   2000    23.00% effective overall tax rate(computed on tax on middle of income range)
Over $   4000 but not over $   6000    $    936, plus 29.00% of excess over $   4000    24.52% effective overall tax rate(computed on tax on middle of income range)
Over $   6000 but not over $   8000    $   1516, plus 34.00% of excess over $   6000    26.51% effective overall tax rate(computed on tax on middle of income range)
Over $   8000 but not over $  10000    $   2196, plus 38.00% of excess over $   8000    28.62% effective overall tax rate(computed on tax on middle of income range)
Over $  10000 but not over $  12000    $   2956, plus 42.00% of excess over $  10000    30.69% effective overall tax rate(computed on tax on middle of income range)
Over $  12000 but not over $  14000    $   3796, plus 48.00% of excess over $  12000    32.89% effective overall tax rate(computed on tax on middle of income range)
Over $  14000 but not over $  16000    $   4756, plus 53.00% of excess over $  14000    35.24% effective overall tax rate(computed on tax on middle of income range)
Over $  16000 but not over $  18000    $   5816, plus 56.00% of excess over $  16000    37.51% effective overall tax rate(computed on tax on middle of income range)
Over $  18000 but not over $  20000    $   6936, plus 59.00% of excess over $  18000    39.61% effective overall tax rate(computed on tax on middle of income range)
Over $  20000 but not over $  22000    $   8116, plus 62.00% of excess over $  20000    41.60% effective overall tax rate(computed on tax on middle of income range)
Over $  22000 but not over $  26000    $   9356, plus 66.00% of excess over $  22000    44.48% effective overall tax rate(computed on tax on middle of income range)
Over $  26000 but not over $  32000    $  11996, plus 67.00% of excess over $  26000    48.30% effective overall tax rate(computed on tax on middle of income range)
Over $  32000 but not over $  38000    $  16016, plus 68.00% of excess over $  32000    51.59% effective overall tax rate(computed on tax on middle of income range)
Over $  38000 but not over $  44000    $  20096, plus 72.00% of excess over $  38000    54.28% effective overall tax rate(computed on tax on middle of income range)
Over $  44000 but not over $  50000    $  24416, plus 75.00% of excess over $  44000    56.74% effective overall tax rate(computed on tax on middle of income range)
Over $  50000 but not over $  60000    $  28916, plus 77.00% of excess over $  50000    59.57% effective overall tax rate(computed on tax on middle of income range)
Over $  60000 but not over $  70000    $  36616, plus 80.00% of excess over $  60000    62.49% effective overall tax rate(computed on tax on middle of income range)
Over $  70000 but not over $  80000    $  44616, plus 83.00% of excess over $  70000    65.02% effective overall tax rate(computed on tax on middle of income range)
Over $  80000 but not over $  90000    $  52916, plus 85.00% of excess over $  80000    67.25% effective overall tax rate(computed on tax on middle of income range)
Over $  90000 but not over $ 100000    $  61416, plus 88.00% of excess over $  90000    69.28% effective overall tax rate(computed on tax on middle of income range)
Over $ 100000 but not over $ 150000    $  70216, plus 90.00% of excess over $ 100000    74.17% effective overall tax rate(computed on tax on middle of income range)
Over $ 150000 but not over $ 200000    $ 115216, plus 91.00% of excess over $ 150000    78.84% effective overall tax rate(computed on tax on middle of income range)
Over $ 200000 ........................ $ 160716, plus 92.00% of excess over $ 200000    80.36% <=> 92.00% effective overall tax rate as income goes to infinity
1952 tax rate schedule with figures INFLATION-ADJUSTED to 2013 dollars(for SINGLE taxpayer) ... the multiplier is 8.707773585 based on the average of the last 12 monthly figures through and including April 2013 released in mid-May 2013)
Inflation multiplier was determined from Bureau of Labor Statistics at [CPI Inflation Calculator | Historical Consumer Price Index]
Computation of the actual taxes due and the effective overall tax rate at each level were done by Jeff Sagarin.

Not over $  17416 ................................... 22.20% of the taxable income      22.20% effective overall tax rate
Over $  17416 but not over $  34831    $   3866, plus 24.60% of excess over $  17416    23.00% effective overall tax rate(computed on tax on middle of income range)
Over $  34831 but not over $  52247    $   8150, plus 29.00% of excess over $  34831    24.52% effective overall tax rate(computed on tax on middle of income range)
Over $  52247 but not over $  69662    $  13201, plus 34.00% of excess over $  52247    26.51% effective overall tax rate(computed on tax on middle of income range)
Over $  69662 but not over $  87078    $  19122, plus 38.00% of excess over $  69662    28.62% effective overall tax rate(computed on tax on middle of income range)
Over $  87078 but not over $ 104493    $  25740, plus 42.00% of excess over $  87078    30.69% effective overall tax rate(computed on tax on middle of income range)
Over $ 104493 but not over $ 121909    $  33055, plus 48.00% of excess over $ 104493    32.89% effective overall tax rate(computed on tax on middle of income range)
Over $ 121909 but not over $ 139324    $  41414, plus 53.00% of excess over $ 121909    35.24% effective overall tax rate(computed on tax on middle of income range)
Over $ 139324 but not over $ 156740    $  50644, plus 56.00% of excess over $ 139324    37.51% effective overall tax rate(computed on tax on middle of income range)
Over $ 156740 but not over $ 174155    $  60397, plus 59.00% of excess over $ 156740    39.61% effective overall tax rate(computed on tax on middle of income range)
Over $ 174155 but not over $ 191571    $  70672, plus 62.00% of excess over $ 174155    41.60% effective overall tax rate(computed on tax on middle of income range)
Over $ 191571 but not over $ 226402    $  81470, plus 66.00% of excess over $ 191571    44.48% effective overall tax rate(computed on tax on middle of income range)
Over $ 226402 but not over $ 278649    $ 104458, plus 67.00% of excess over $ 226402    48.30% effective overall tax rate(computed on tax on middle of income range)
Over $ 278649 but not over $ 330895    $ 139464, plus 68.00% of excess over $ 278649    51.59% effective overall tax rate(computed on tax on middle of income range)
Over $ 330895 but not over $ 383142    $ 174991, plus 72.00% of excess over $ 330895    54.28% effective overall tax rate(computed on tax on middle of income range)
Over $ 383142 but not over $ 435389    $ 212609, plus 75.00% of excess over $ 383142    56.74% effective overall tax rate(computed on tax on middle of income range)
Over $ 435389 but not over $ 522466    $ 251794, plus 77.00% of excess over $ 435389    59.57% effective overall tax rate(computed on tax on middle of income range)
Over $ 522466 but not over $ 609544    $ 318844, plus 80.00% of excess over $ 522466    62.49% effective overall tax rate(computed on tax on middle of income range)
Over $ 609544 but not over $ 696622    $ 388506, plus 83.00% of excess over $ 609544    65.02% effective overall tax rate(computed on tax on middle of income range)
Over $ 696622 but not over $ 783700    $ 460781, plus 85.00% of excess over $ 696622    67.25% effective overall tax rate(computed on tax on middle of income range)
Over $ 783700 but not over $ 870777    $ 534797, plus 88.00% of excess over $ 783700    69.28% effective overall tax rate(computed on tax on middle of income range)
Over $ 870777 but not over $1306166    $ 611425, plus 90.00% of excess over $ 870777    74.17% effective overall tax rate(computed on tax on middle of income range)
Over $1306166 but not over $1741555    $1003275, plus 91.00% of excess over $1306166    78.84% effective overall tax rate(computed on tax on middle of income range)
Over $1741555 ........................ $1399479, plus 92.00% of excess over $1741555    80.36% <=> 92.00% effective overall tax rate as income goes to infinity
                                                                              1952     1954                                               using exact decimal values of taxes (not integers)
                                                                              ____     ____
taxable income in 2013 dollars $     10000     tax due in  2013 dollars $     2220     2000     percentage of taxable income= 22.20%    for tax year 1952  percentage of 1954 taxes  111.00%
taxable income in 2013 dollars $     20000     tax due in  2013 dollars $     4502     4057     percentage of taxable income= 22.51%    for tax year 1952  percentage of 1954 taxes  110.97%
taxable income in 2013 dollars $     30000     tax due in  2013 dollars $     6962     6257     percentage of taxable income= 23.21%    for tax year 1952  percentage of 1954 taxes  111.27%
taxable income in 2013 dollars $     40000     tax due in  2013 dollars $     9649     8684     percentage of taxable income= 24.12%    for tax year 1952  percentage of 1954 taxes  111.11%
taxable income in 2013 dollars $     50000     tax due in  2013 dollars $    12549    11284     percentage of taxable income= 25.10%    for tax year 1952  percentage of 1954 taxes  111.21%
taxable income in 2013 dollars $     60000     tax due in  2013 dollars $    15837    14226     percentage of taxable income= 26.40%    for tax year 1952  percentage of 1954 taxes  111.33%
taxable income in 2013 dollars $     70000     tax due in  2013 dollars $    19251    17280     percentage of taxable income= 27.50%    for tax year 1952  percentage of 1954 taxes  111.40%
taxable income in 2013 dollars $     80000     tax due in  2013 dollars $    23051    20680     percentage of taxable income= 28.81%    for tax year 1952  percentage of 1954 taxes  111.46%
taxable income in 2013 dollars $     90000     tax due in  2013 dollars $    26968    24249     percentage of taxable income= 29.96%    for tax year 1952  percentage of 1954 taxes  111.21%
taxable income in 2013 dollars $    100000     tax due in  2013 dollars $    31168    28049     percentage of taxable income= 31.17%    for tax year 1952  percentage of 1954 taxes  111.12%
taxable income in 2013 dollars $    150000     tax due in  2013 dollars $    56623    50981     percentage of taxable income= 37.75%    for tax year 1952  percentage of 1954 taxes  111.07%
taxable income in 2013 dollars $    200000     tax due in  2013 dollars $    87033    78540     percentage of taxable income= 43.52%    for tax year 1952  percentage of 1954 taxes  110.81%
taxable income in 2013 dollars $    250000     tax due in  2013 dollars $   120269   108849     percentage of taxable income= 48.11%    for tax year 1952  percentage of 1954 taxes  110.49%
taxable income in 2013 dollars $    300000     tax due in  2013 dollars $   153983   140614     percentage of taxable income= 51.33%    for tax year 1952  percentage of 1954 taxes  109.51%
taxable income in 2013 dollars $    350000     tax due in  2013 dollars $   188747   174075     percentage of taxable income= 53.93%    for tax year 1952  percentage of 1954 taxes  108.43%
taxable income in 2013 dollars $    400000     tax due in  2013 dollars $   225252   209251     percentage of taxable income= 56.31%    for tax year 1952  percentage of 1954 taxes  107.65%
taxable income in 2013 dollars $    450000     tax due in  2013 dollars $   263045   245884     percentage of taxable income= 58.45%    for tax year 1952  percentage of 1954 taxes  106.98%
taxable income in 2013 dollars $    500000     tax due in  2013 dollars $   301545   283384     percentage of taxable income= 60.31%    for tax year 1952  percentage of 1954 taxes  106.41%
taxable income in 2013 dollars $    600000     tax due in  2013 dollars $   380871   360943     percentage of taxable income= 63.48%    for tax year 1952  percentage of 1954 taxes  105.52%
taxable income in 2013 dollars $    700000     tax due in  2013 dollars $   463652   442341     percentage of taxable income= 66.24%    for tax year 1952  percentage of 1954 taxes  104.82%
taxable income in 2013 dollars $    800000     tax due in  2013 dollars $   549141   527179     percentage of taxable income= 68.64%    for tax year 1952  percentage of 1954 taxes  104.17%
taxable income in 2013 dollars $    900000     tax due in  2013 dollars $   637725   615023     percentage of taxable income= 70.86%    for tax year 1952  percentage of 1954 taxes  103.69%
taxable income in 2013 dollars $   1000000     tax due in  2013 dollars $   727725   704023     percentage of taxable income= 72.77%    for tax year 1952  percentage of 1954 taxes  103.37%

1953 tax rate schedule with ORIGINAL dollar figures(for SINGLE taxpayer)
Historical data for the marginal rates was obtained at the Tax Foundation website at [U.S. Federal Individual Income Tax Rates History, 1913-2011 (Nominal and Inflation-Adjusted Brackets)]
Computation of the actual taxes due and the effective overall tax rate at each level were done by Jeff Sagarin.

Not over $   2000 ................................... 22.20% of the taxable income      22.20% effective overall tax rate
Over $   2000 but not over $   4000    $    444, plus 24.60% of excess over $   2000    23.00% effective overall tax rate(computed on tax on middle of income range)
Over $   4000 but not over $   6000    $    936, plus 29.00% of excess over $   4000    24.52% effective overall tax rate(computed on tax on middle of income range)
Over $   6000 but not over $   8000    $   1516, plus 34.00% of excess over $   6000    26.51% effective overall tax rate(computed on tax on middle of income range)
Over $   8000 but not over $  10000    $   2196, plus 38.00% of excess over $   8000    28.62% effective overall tax rate(computed on tax on middle of income range)
Over $  10000 but not over $  12000    $   2956, plus 42.00% of excess over $  10000    30.69% effective overall tax rate(computed on tax on middle of income range)
Over $  12000 but not over $  14000    $   3796, plus 48.00% of excess over $  12000    32.89% effective overall tax rate(computed on tax on middle of income range)
Over $  14000 but not over $  16000    $   4756, plus 53.00% of excess over $  14000    35.24% effective overall tax rate(computed on tax on middle of income range)
Over $  16000 but not over $  18000    $   5816, plus 56.00% of excess over $  16000    37.51% effective overall tax rate(computed on tax on middle of income range)
Over $  18000 but not over $  20000    $   6936, plus 59.00% of excess over $  18000    39.61% effective overall tax rate(computed on tax on middle of income range)
Over $  20000 but not over $  22000    $   8116, plus 62.00% of excess over $  20000    41.60% effective overall tax rate(computed on tax on middle of income range)
Over $  22000 but not over $  26000    $   9356, plus 66.00% of excess over $  22000    44.48% effective overall tax rate(computed on tax on middle of income range)
Over $  26000 but not over $  32000    $  11996, plus 67.00% of excess over $  26000    48.30% effective overall tax rate(computed on tax on middle of income range)
Over $  32000 but not over $  38000    $  16016, plus 68.00% of excess over $  32000    51.59% effective overall tax rate(computed on tax on middle of income range)
Over $  38000 but not over $  44000    $  20096, plus 72.00% of excess over $  38000    54.28% effective overall tax rate(computed on tax on middle of income range)
Over $  44000 but not over $  50000    $  24416, plus 75.00% of excess over $  44000    56.74% effective overall tax rate(computed on tax on middle of income range)
Over $  50000 but not over $  60000    $  28916, plus 77.00% of excess over $  50000    59.57% effective overall tax rate(computed on tax on middle of income range)
Over $  60000 but not over $  70000    $  36616, plus 80.00% of excess over $  60000    62.49% effective overall tax rate(computed on tax on middle of income range)
Over $  70000 but not over $  80000    $  44616, plus 83.00% of excess over $  70000    65.02% effective overall tax rate(computed on tax on middle of income range)
Over $  80000 but not over $  90000    $  52916, plus 85.00% of excess over $  80000    67.25% effective overall tax rate(computed on tax on middle of income range)
Over $  90000 but not over $ 100000    $  61416, plus 88.00% of excess over $  90000    69.28% effective overall tax rate(computed on tax on middle of income range)
Over $ 100000 but not over $ 150000    $  70216, plus 90.00% of excess over $ 100000    74.17% effective overall tax rate(computed on tax on middle of income range)
Over $ 150000 but not over $ 200000    $ 115216, plus 91.00% of excess over $ 150000    78.84% effective overall tax rate(computed on tax on middle of income range)
Over $ 200000 ........................ $ 160716, plus 92.00% of excess over $ 200000    80.36% <=> 92.00% effective overall tax rate as income goes to infinity
1953 tax rate schedule with figures INFLATION-ADJUSTED to 2013 dollars(for SINGLE taxpayer) ... the multiplier is 8.642546817 based on the average of the last 12 monthly figures through and including April 2013 released in mid-May 2013)
Inflation multiplier was determined from Bureau of Labor Statistics at [CPI Inflation Calculator | Historical Consumer Price Index]
Computation of the actual taxes due and the effective overall tax rate at each level were done by Jeff Sagarin.

Not over $  17285 ................................... 22.20% of the taxable income      22.20% effective overall tax rate
Over $  17285 but not over $  34570    $   3837, plus 24.60% of excess over $  17285    23.00% effective overall tax rate(computed on tax on middle of income range)
Over $  34570 but not over $  51855    $   8089, plus 29.00% of excess over $  34570    24.52% effective overall tax rate(computed on tax on middle of income range)
Over $  51855 but not over $  69140    $  13102, plus 34.00% of excess over $  51855    26.51% effective overall tax rate(computed on tax on middle of income range)
Over $  69140 but not over $  86425    $  18979, plus 38.00% of excess over $  69140    28.62% effective overall tax rate(computed on tax on middle of income range)
Over $  86425 but not over $ 103711    $  25547, plus 42.00% of excess over $  86425    30.69% effective overall tax rate(computed on tax on middle of income range)
Over $ 103711 but not over $ 120996    $  32807, plus 48.00% of excess over $ 103711    32.89% effective overall tax rate(computed on tax on middle of income range)
Over $ 120996 but not over $ 138281    $  41104, plus 53.00% of excess over $ 120996    35.24% effective overall tax rate(computed on tax on middle of income range)
Over $ 138281 but not over $ 155566    $  50265, plus 56.00% of excess over $ 138281    37.51% effective overall tax rate(computed on tax on middle of income range)
Over $ 155566 but not over $ 172851    $  59945, plus 59.00% of excess over $ 155566    39.61% effective overall tax rate(computed on tax on middle of income range)
Over $ 172851 but not over $ 190136    $  70143, plus 62.00% of excess over $ 172851    41.60% effective overall tax rate(computed on tax on middle of income range)
Over $ 190136 but not over $ 224706    $  80860, plus 66.00% of excess over $ 190136    44.48% effective overall tax rate(computed on tax on middle of income range)
Over $ 224706 but not over $ 276561    $ 103676, plus 67.00% of excess over $ 224706    48.30% effective overall tax rate(computed on tax on middle of income range)
Over $ 276561 but not over $ 328417    $ 138419, plus 68.00% of excess over $ 276561    51.59% effective overall tax rate(computed on tax on middle of income range)
Over $ 328417 but not over $ 380272    $ 173681, plus 72.00% of excess over $ 328417    54.28% effective overall tax rate(computed on tax on middle of income range)
Over $ 380272 but not over $ 432127    $ 211016, plus 75.00% of excess over $ 380272    56.74% effective overall tax rate(computed on tax on middle of income range)
Over $ 432127 but not over $ 518553    $ 249908, plus 77.00% of excess over $ 432127    59.57% effective overall tax rate(computed on tax on middle of income range)
Over $ 518553 but not over $ 604978    $ 316455, plus 80.00% of excess over $ 518553    62.49% effective overall tax rate(computed on tax on middle of income range)
Over $ 604978 but not over $ 691404    $ 385596, plus 83.00% of excess over $ 604978    65.02% effective overall tax rate(computed on tax on middle of income range)
Over $ 691404 but not over $ 777829    $ 457329, plus 85.00% of excess over $ 691404    67.25% effective overall tax rate(computed on tax on middle of income range)
Over $ 777829 but not over $ 864255    $ 530791, plus 88.00% of excess over $ 777829    69.28% effective overall tax rate(computed on tax on middle of income range)
Over $ 864255 but not over $1296382    $ 606845, plus 90.00% of excess over $ 864255    74.17% effective overall tax rate(computed on tax on middle of income range)
Over $1296382 but not over $1728509    $ 995760, plus 91.00% of excess over $1296382    78.84% effective overall tax rate(computed on tax on middle of income range)
Over $1728509 ........................ $1388996, plus 92.00% of excess over $1728509    80.36% <=> 92.00% effective overall tax rate as income goes to infinity
                                                                              1953     1954                                               using exact decimal values of taxes (not integers)
                                                                              ____     ____
taxable income in 2013 dollars $     10000     tax due in  2013 dollars $     2220     2000     percentage of taxable income= 22.20%    for tax year 1953  percentage of 1954 taxes  111.00%
taxable income in 2013 dollars $     20000     tax due in  2013 dollars $     4505     4057     percentage of taxable income= 22.53%    for tax year 1953  percentage of 1954 taxes  111.05%
taxable income in 2013 dollars $     30000     tax due in  2013 dollars $     6965     6257     percentage of taxable income= 23.22%    for tax year 1953  percentage of 1954 taxes  111.32%
taxable income in 2013 dollars $     40000     tax due in  2013 dollars $     9664     8684     percentage of taxable income= 24.16%    for tax year 1953  percentage of 1954 taxes  111.28%
taxable income in 2013 dollars $     50000     tax due in  2013 dollars $    12564    11284     percentage of taxable income= 25.13%    for tax year 1953  percentage of 1954 taxes  111.34%
taxable income in 2013 dollars $     60000     tax due in  2013 dollars $    15871    14226     percentage of taxable income= 26.45%    for tax year 1953  percentage of 1954 taxes  111.57%
taxable income in 2013 dollars $     70000     tax due in  2013 dollars $    19306    17280     percentage of taxable income= 27.58%    for tax year 1953  percentage of 1954 taxes  111.72%
taxable income in 2013 dollars $     80000     tax due in  2013 dollars $    23106    20680     percentage of taxable income= 28.88%    for tax year 1953  percentage of 1954 taxes  111.73%
taxable income in 2013 dollars $     90000     tax due in  2013 dollars $    27049    24249     percentage of taxable income= 30.05%    for tax year 1953  percentage of 1954 taxes  111.54%
taxable income in 2013 dollars $    100000     tax due in  2013 dollars $    31249    28049     percentage of taxable income= 31.25%    for tax year 1953  percentage of 1954 taxes  111.41%
taxable income in 2013 dollars $    150000     tax due in  2013 dollars $    56828    50981     percentage of taxable income= 37.89%    for tax year 1953  percentage of 1954 taxes  111.47%
taxable income in 2013 dollars $    200000     tax due in  2013 dollars $    87370    78540     percentage of taxable income= 43.68%    for tax year 1953  percentage of 1954 taxes  111.24%
taxable income in 2013 dollars $    250000     tax due in  2013 dollars $   120623   108849     percentage of taxable income= 48.25%    for tax year 1953  percentage of 1954 taxes  110.82%
taxable income in 2013 dollars $    300000     tax due in  2013 dollars $   154357   140614     percentage of taxable income= 51.45%    for tax year 1953  percentage of 1954 taxes  109.77%
taxable income in 2013 dollars $    350000     tax due in  2013 dollars $   189221   174075     percentage of taxable income= 54.06%    for tax year 1953  percentage of 1954 taxes  108.70%
taxable income in 2013 dollars $    400000     tax due in  2013 dollars $   225812   209251     percentage of taxable income= 56.45%    for tax year 1953  percentage of 1954 taxes  107.91%
taxable income in 2013 dollars $    450000     tax due in  2013 dollars $   263670   245884     percentage of taxable income= 58.59%    for tax year 1953  percentage of 1954 taxes  107.23%
taxable income in 2013 dollars $    500000     tax due in  2013 dollars $   302170   283384     percentage of taxable income= 60.43%    for tax year 1953  percentage of 1954 taxes  106.63%
taxable income in 2013 dollars $    600000     tax due in  2013 dollars $   381613   360943     percentage of taxable income= 63.60%    for tax year 1953  percentage of 1954 taxes  105.73%
taxable income in 2013 dollars $    700000     tax due in  2013 dollars $   464636   442341     percentage of taxable income= 66.38%    for tax year 1953  percentage of 1954 taxes  105.04%
taxable income in 2013 dollars $    800000     tax due in  2013 dollars $   550301   527179     percentage of taxable income= 68.79%    for tax year 1953  percentage of 1954 taxes  104.39%
taxable income in 2013 dollars $    900000     tax due in  2013 dollars $   639016   615023     percentage of taxable income= 71.00%    for tax year 1953  percentage of 1954 taxes  103.90%
taxable income in 2013 dollars $   1000000     tax due in  2013 dollars $   729016   704023     percentage of taxable income= 72.90%    for tax year 1953  percentage of 1954 taxes  103.55%

1954 tax rate schedule with ORIGINAL dollar figures(for SINGLE taxpayer)
Historical data for the marginal rates was obtained at the Tax Foundation website at [U.S. Federal Individual Income Tax Rates History, 1913-2011 (Nominal and Inflation-Adjusted Brackets)]
Computation of the actual taxes due and the effective overall tax rate at each level were done by Jeff Sagarin.

Not over $   2000 ................................... 20.00% of the taxable income      20.00% effective overall tax rate
Over $   2000 but not over $   4000    $    400, plus 22.00% of excess over $   2000    20.67% effective overall tax rate(computed on tax on middle of income range)
Over $   4000 but not over $   6000    $    840, plus 26.00% of excess over $   4000    22.00% effective overall tax rate(computed on tax on middle of income range)
Over $   6000 but not over $   8000    $   1360, plus 30.00% of excess over $   6000    23.71% effective overall tax rate(computed on tax on middle of income range)
Over $   8000 but not over $  10000    $   1960, plus 34.00% of excess over $   8000    25.56% effective overall tax rate(computed on tax on middle of income range)
Over $  10000 but not over $  12000    $   2640, plus 38.00% of excess over $  10000    27.45% effective overall tax rate(computed on tax on middle of income range)
Over $  12000 but not over $  14000    $   3400, plus 43.00% of excess over $  12000    29.46% effective overall tax rate(computed on tax on middle of income range)
Over $  14000 but not over $  16000    $   4260, plus 47.00% of excess over $  14000    31.53% effective overall tax rate(computed on tax on middle of income range)
Over $  16000 but not over $  18000    $   5200, plus 50.00% of excess over $  16000    33.53% effective overall tax rate(computed on tax on middle of income range)
Over $  18000 but not over $  20000    $   6200, plus 53.00% of excess over $  18000    35.42% effective overall tax rate(computed on tax on middle of income range)
Over $  20000 but not over $  22000    $   7260, plus 56.00% of excess over $  20000    37.24% effective overall tax rate(computed on tax on middle of income range)
Over $  22000 but not over $  26000    $   8380, plus 59.00% of excess over $  22000    39.83% effective overall tax rate(computed on tax on middle of income range)
Over $  26000 but not over $  32000    $  10740, plus 62.00% of excess over $  26000    43.45% effective overall tax rate(computed on tax on middle of income range)
Over $  32000 but not over $  38000    $  14460, plus 65.00% of excess over $  32000    46.89% effective overall tax rate(computed on tax on middle of income range)
Over $  38000 but not over $  44000    $  18360, plus 69.00% of excess over $  38000    49.83% effective overall tax rate(computed on tax on middle of income range)
Over $  44000 but not over $  50000    $  22500, plus 72.00% of excess over $  44000    52.47% effective overall tax rate(computed on tax on middle of income range)
Over $  50000 but not over $  60000    $  26820, plus 75.00% of excess over $  50000    55.58% effective overall tax rate(computed on tax on middle of income range)
Over $  60000 but not over $  70000    $  34320, plus 78.00% of excess over $  60000    58.80% effective overall tax rate(computed on tax on middle of income range)
Over $  70000 but not over $  80000    $  42120, plus 81.00% of excess over $  70000    61.56% effective overall tax rate(computed on tax on middle of income range)
Over $  80000 but not over $  90000    $  50220, plus 84.00% of excess over $  80000    64.02% effective overall tax rate(computed on tax on middle of income range)
Over $  90000 but not over $ 100000    $  58620, plus 87.00% of excess over $  90000    66.28% effective overall tax rate(computed on tax on middle of income range)
Over $ 100000 but not over $ 150000    $  67320, plus 89.00% of excess over $ 100000    71.66% effective overall tax rate(computed on tax on middle of income range)
Over $ 150000 but not over $ 200000    $ 111820, plus 90.00% of excess over $ 150000    76.75% effective overall tax rate(computed on tax on middle of income range)
Over $ 200000 ........................ $ 156820, plus 91.00% of excess over $ 200000    78.41% <=> 91.00% effective overall tax rate as income goes to infinity
1954 tax rate schedule with figures INFLATION-ADJUSTED to 2013 dollars(for SINGLE taxpayer) ... the multiplier is 8.578289963 based on the average of the last 12 monthly figures through and including April 2013 released in mid-May 2013)
Inflation multiplier was determined from Bureau of Labor Statistics at [CPI Inflation Calculator | Historical Consumer Price Index]
Computation of the actual taxes due and the effective overall tax rate at each level were done by Jeff Sagarin.

Not over $  17157 ................................... 20.00% of the taxable income      20.00% effective overall tax rate
Over $  17157 but not over $  34313    $   3431, plus 22.00% of excess over $  17157    20.67% effective overall tax rate(computed on tax on middle of income range)
Over $  34313 but not over $  51470    $   7206, plus 26.00% of excess over $  34313    22.00% effective overall tax rate(computed on tax on middle of income range)
Over $  51470 but not over $  68626    $  11666, plus 30.00% of excess over $  51470    23.71% effective overall tax rate(computed on tax on middle of income range)
Over $  68626 but not over $  85783    $  16813, plus 34.00% of excess over $  68626    25.56% effective overall tax rate(computed on tax on middle of income range)
Over $  85783 but not over $ 102939    $  22647, plus 38.00% of excess over $  85783    27.45% effective overall tax rate(computed on tax on middle of income range)
Over $ 102939 but not over $ 120096    $  29166, plus 43.00% of excess over $ 102939    29.46% effective overall tax rate(computed on tax on middle of income range)
Over $ 120096 but not over $ 137253    $  36544, plus 47.00% of excess over $ 120096    31.53% effective overall tax rate(computed on tax on middle of income range)
Over $ 137253 but not over $ 154409    $  44607, plus 50.00% of excess over $ 137253    33.53% effective overall tax rate(computed on tax on middle of income range)
Over $ 154409 but not over $ 171566    $  53185, plus 53.00% of excess over $ 154409    35.42% effective overall tax rate(computed on tax on middle of income range)
Over $ 171566 but not over $ 188722    $  62278, plus 56.00% of excess over $ 171566    37.24% effective overall tax rate(computed on tax on middle of income range)
Over $ 188722 but not over $ 223036    $  71886, plus 59.00% of excess over $ 188722    39.83% effective overall tax rate(computed on tax on middle of income range)
Over $ 223036 but not over $ 274505    $  92131, plus 62.00% of excess over $ 223036    43.45% effective overall tax rate(computed on tax on middle of income range)
Over $ 274505 but not over $ 325975    $ 124042, plus 65.00% of excess over $ 274505    46.89% effective overall tax rate(computed on tax on middle of income range)
Over $ 325975 but not over $ 377445    $ 157497, plus 69.00% of excess over $ 325975    49.83% effective overall tax rate(computed on tax on middle of income range)
Over $ 377445 but not over $ 428914    $ 193012, plus 72.00% of excess over $ 377445    52.47% effective overall tax rate(computed on tax on middle of income range)
Over $ 428914 but not over $ 514697    $ 230070, plus 75.00% of excess over $ 428914    55.58% effective overall tax rate(computed on tax on middle of income range)
Over $ 514697 but not over $ 600480    $ 294407, plus 78.00% of excess over $ 514697    58.80% effective overall tax rate(computed on tax on middle of income range)
Over $ 600480 but not over $ 686263    $ 361318, plus 81.00% of excess over $ 600480    61.56% effective overall tax rate(computed on tax on middle of income range)
Over $ 686263 but not over $ 772046    $ 430802, plus 84.00% of excess over $ 686263    64.02% effective overall tax rate(computed on tax on middle of income range)
Over $ 772046 but not over $ 857829    $ 502859, plus 87.00% of excess over $ 772046    66.28% effective overall tax rate(computed on tax on middle of income range)
Over $ 857829 but not over $1286743    $ 577490, plus 89.00% of excess over $ 857829    71.66% effective overall tax rate(computed on tax on middle of income range)
Over $1286743 but not over $1715658    $ 959224, plus 90.00% of excess over $1286743    76.75% effective overall tax rate(computed on tax on middle of income range)
Over $1715658 ........................ $1345247, plus 91.00% of excess over $1715658    78.41% <=> 91.00% effective overall tax rate as income goes to infinity
                                                                              1954     1954                                               using exact decimal values of taxes (not integers)
                                                                              ____     ____
taxable income in 2013 dollars $     10000     tax due in  2013 dollars $     2000     2000     percentage of taxable income= 20.00%    for tax year 1954  percentage of 1954 taxes  100.00%
taxable income in 2013 dollars $     20000     tax due in  2013 dollars $     4057     4057     percentage of taxable income= 20.28%    for tax year 1954  percentage of 1954 taxes  100.00%
taxable income in 2013 dollars $     30000     tax due in  2013 dollars $     6257     6257     percentage of taxable income= 20.86%    for tax year 1954  percentage of 1954 taxes  100.00%
taxable income in 2013 dollars $     40000     tax due in  2013 dollars $     8684     8684     percentage of taxable income= 21.71%    for tax year 1954  percentage of 1954 taxes  100.00%
taxable income in 2013 dollars $     50000     tax due in  2013 dollars $    11284    11284     percentage of taxable income= 22.57%    for tax year 1954  percentage of 1954 taxes  100.00%
taxable income in 2013 dollars $     60000     tax due in  2013 dollars $    14226    14226     percentage of taxable income= 23.71%    for tax year 1954  percentage of 1954 taxes  100.00%
taxable income in 2013 dollars $     70000     tax due in  2013 dollars $    17280    17280     percentage of taxable income= 24.69%    for tax year 1954  percentage of 1954 taxes  100.00%
taxable income in 2013 dollars $     80000     tax due in  2013 dollars $    20680    20680     percentage of taxable income= 25.85%    for tax year 1954  percentage of 1954 taxes  100.00%
taxable income in 2013 dollars $     90000     tax due in  2013 dollars $    24249    24249     percentage of taxable income= 26.94%    for tax year 1954  percentage of 1954 taxes  100.00%
taxable income in 2013 dollars $    100000     tax due in  2013 dollars $    28049    28049     percentage of taxable income= 28.05%    for tax year 1954  percentage of 1954 taxes  100.00%
taxable income in 2013 dollars $    150000     tax due in  2013 dollars $    50981    50981     percentage of taxable income= 33.99%    for tax year 1954  percentage of 1954 taxes  100.00%
taxable income in 2013 dollars $    200000     tax due in  2013 dollars $    78540    78540     percentage of taxable income= 39.27%    for tax year 1954  percentage of 1954 taxes  100.00%
taxable income in 2013 dollars $    250000     tax due in  2013 dollars $   108849   108849     percentage of taxable income= 43.54%    for tax year 1954  percentage of 1954 taxes  100.00%
taxable income in 2013 dollars $    300000     tax due in  2013 dollars $   140614   140614     percentage of taxable income= 46.87%    for tax year 1954  percentage of 1954 taxes  100.00%
taxable income in 2013 dollars $    350000     tax due in  2013 dollars $   174075   174075     percentage of taxable income= 49.74%    for tax year 1954  percentage of 1954 taxes  100.00%
taxable income in 2013 dollars $    400000     tax due in  2013 dollars $   209251   209251     percentage of taxable income= 52.31%    for tax year 1954  percentage of 1954 taxes  100.00%
taxable income in 2013 dollars $    450000     tax due in  2013 dollars $   245884   245884     percentage of taxable income= 54.64%    for tax year 1954  percentage of 1954 taxes  100.00%
taxable income in 2013 dollars $    500000     tax due in  2013 dollars $   283384   283384     percentage of taxable income= 56.68%    for tax year 1954  percentage of 1954 taxes  100.00%
taxable income in 2013 dollars $    600000     tax due in  2013 dollars $   360943   360943     percentage of taxable income= 60.16%    for tax year 1954  percentage of 1954 taxes  100.00%
taxable income in 2013 dollars $    700000     tax due in  2013 dollars $   442341   442341     percentage of taxable income= 63.19%    for tax year 1954  percentage of 1954 taxes  100.00%
taxable income in 2013 dollars $    800000     tax due in  2013 dollars $   527179   527179     percentage of taxable income= 65.90%    for tax year 1954  percentage of 1954 taxes  100.00%
taxable income in 2013 dollars $    900000     tax due in  2013 dollars $   615023   615023     percentage of taxable income= 68.34%    for tax year 1954  percentage of 1954 taxes  100.00%
taxable income in 2013 dollars $   1000000     tax due in  2013 dollars $   704023   704023     percentage of taxable income= 70.40%    for tax year 1954  percentage of 1954 taxes  100.00%

1955 tax rate schedule with ORIGINAL dollar figures(for SINGLE taxpayer)
Historical data for the marginal rates was obtained at the Tax Foundation website at [U.S. Federal Individual Income Tax Rates History, 1913-2011 (Nominal and Inflation-Adjusted Brackets)]
Computation of the actual taxes due and the effective overall tax rate at each level were done by Jeff Sagarin.

Not over $   2000 ................................... 20.00% of the taxable income      20.00% effective overall tax rate
Over $   2000 but not over $   4000    $    400, plus 22.00% of excess over $   2000    20.67% effective overall tax rate(computed on tax on middle of income range)
Over $   4000 but not over $   6000    $    840, plus 26.00% of excess over $   4000    22.00% effective overall tax rate(computed on tax on middle of income range)
Over $   6000 but not over $   8000    $   1360, plus 30.00% of excess over $   6000    23.71% effective overall tax rate(computed on tax on middle of income range)
Over $   8000 but not over $  10000    $   1960, plus 34.00% of excess over $   8000    25.56% effective overall tax rate(computed on tax on middle of income range)
Over $  10000 but not over $  12000    $   2640, plus 38.00% of excess over $  10000    27.45% effective overall tax rate(computed on tax on middle of income range)
Over $  12000 but not over $  14000    $   3400, plus 43.00% of excess over $  12000    29.46% effective overall tax rate(computed on tax on middle of income range)
Over $  14000 but not over $  16000    $   4260, plus 47.00% of excess over $  14000    31.53% effective overall tax rate(computed on tax on middle of income range)
Over $  16000 but not over $  18000    $   5200, plus 50.00% of excess over $  16000    33.53% effective overall tax rate(computed on tax on middle of income range)
Over $  18000 but not over $  20000    $   6200, plus 53.00% of excess over $  18000    35.42% effective overall tax rate(computed on tax on middle of income range)
Over $  20000 but not over $  22000    $   7260, plus 56.00% of excess over $  20000    37.24% effective overall tax rate(computed on tax on middle of income range)
Over $  22000 but not over $  26000    $   8380, plus 59.00% of excess over $  22000    39.83% effective overall tax rate(computed on tax on middle of income range)
Over $  26000 but not over $  32000    $  10740, plus 62.00% of excess over $  26000    43.45% effective overall tax rate(computed on tax on middle of income range)
Over $  32000 but not over $  38000    $  14460, plus 65.00% of excess over $  32000    46.89% effective overall tax rate(computed on tax on middle of income range)
Over $  38000 but not over $  44000    $  18360, plus 69.00% of excess over $  38000    49.83% effective overall tax rate(computed on tax on middle of income range)
Over $  44000 but not over $  50000    $  22500, plus 72.00% of excess over $  44000    52.47% effective overall tax rate(computed on tax on middle of income range)
Over $  50000 but not over $  60000    $  26820, plus 75.00% of excess over $  50000    55.58% effective overall tax rate(computed on tax on middle of income range)
Over $  60000 but not over $  70000    $  34320, plus 78.00% of excess over $  60000    58.80% effective overall tax rate(computed on tax on middle of income range)
Over $  70000 but not over $  80000    $  42120, plus 81.00% of excess over $  70000    61.56% effective overall tax rate(computed on tax on middle of income range)
Over $  80000 but not over $  90000    $  50220, plus 84.00% of excess over $  80000    64.02% effective overall tax rate(computed on tax on middle of income range)
Over $  90000 but not over $ 100000    $  58620, plus 87.00% of excess over $  90000    66.28% effective overall tax rate(computed on tax on middle of income range)
Over $ 100000 but not over $ 150000    $  67320, plus 89.00% of excess over $ 100000    71.66% effective overall tax rate(computed on tax on middle of income range)
Over $ 150000 but not over $ 200000    $ 111820, plus 90.00% of excess over $ 150000    76.75% effective overall tax rate(computed on tax on middle of income range)
Over $ 200000 ........................ $ 156820, plus 91.00% of excess over $ 200000    78.41% <=> 91.00% effective overall tax rate as income goes to infinity
1955 tax rate schedule with figures INFLATION-ADJUSTED to 2013 dollars(for SINGLE taxpayer) ... the multiplier is 8.610298507 based on the average of the last 12 monthly figures through and including April 2013 released in mid-May 2013)
Inflation multiplier was determined from Bureau of Labor Statistics at [CPI Inflation Calculator | Historical Consumer Price Index]
Computation of the actual taxes due and the effective overall tax rate at each level were done by Jeff Sagarin.

Not over $  17221 ................................... 20.00% of the taxable income      20.00% effective overall tax rate
Over $  17221 but not over $  34441    $   3444, plus 22.00% of excess over $  17221    20.67% effective overall tax rate(computed on tax on middle of income range)
Over $  34441 but not over $  51662    $   7233, plus 26.00% of excess over $  34441    22.00% effective overall tax rate(computed on tax on middle of income range)
Over $  51662 but not over $  68882    $  11710, plus 30.00% of excess over $  51662    23.71% effective overall tax rate(computed on tax on middle of income range)
Over $  68882 but not over $  86103    $  16876, plus 34.00% of excess over $  68882    25.56% effective overall tax rate(computed on tax on middle of income range)
Over $  86103 but not over $ 103324    $  22731, plus 38.00% of excess over $  86103    27.45% effective overall tax rate(computed on tax on middle of income range)
Over $ 103324 but not over $ 120544    $  29275, plus 43.00% of excess over $ 103324    29.46% effective overall tax rate(computed on tax on middle of income range)
Over $ 120544 but not over $ 137765    $  36680, plus 47.00% of excess over $ 120544    31.53% effective overall tax rate(computed on tax on middle of income range)
Over $ 137765 but not over $ 154985    $  44774, plus 50.00% of excess over $ 137765    33.53% effective overall tax rate(computed on tax on middle of income range)
Over $ 154985 but not over $ 172206    $  53384, plus 53.00% of excess over $ 154985    35.42% effective overall tax rate(computed on tax on middle of income range)
Over $ 172206 but not over $ 189427    $  62511, plus 56.00% of excess over $ 172206    37.24% effective overall tax rate(computed on tax on middle of income range)
Over $ 189427 but not over $ 223868    $  72154, plus 59.00% of excess over $ 189427    39.83% effective overall tax rate(computed on tax on middle of income range)
Over $ 223868 but not over $ 275530    $  92475, plus 62.00% of excess over $ 223868    43.45% effective overall tax rate(computed on tax on middle of income range)
Over $ 275530 but not over $ 327191    $ 124505, plus 65.00% of excess over $ 275530    46.89% effective overall tax rate(computed on tax on middle of income range)
Over $ 327191 but not over $ 378853    $ 158085, plus 69.00% of excess over $ 327191    49.83% effective overall tax rate(computed on tax on middle of income range)
Over $ 378853 but not over $ 430515    $ 193732, plus 72.00% of excess over $ 378853    52.47% effective overall tax rate(computed on tax on middle of income range)
Over $ 430515 but not over $ 516618    $ 230928, plus 75.00% of excess over $ 430515    55.58% effective overall tax rate(computed on tax on middle of income range)
Over $ 516618 but not over $ 602721    $ 295505, plus 78.00% of excess over $ 516618    58.80% effective overall tax rate(computed on tax on middle of income range)
Over $ 602721 but not over $ 688824    $ 362666, plus 81.00% of excess over $ 602721    61.56% effective overall tax rate(computed on tax on middle of income range)
Over $ 688824 but not over $ 774927    $ 432409, plus 84.00% of excess over $ 688824    64.02% effective overall tax rate(computed on tax on middle of income range)
Over $ 774927 but not over $ 861030    $ 504736, plus 87.00% of excess over $ 774927    66.28% effective overall tax rate(computed on tax on middle of income range)
Over $ 861030 but not over $1291545    $ 579645, plus 89.00% of excess over $ 861030    71.66% effective overall tax rate(computed on tax on middle of income range)
Over $1291545 but not over $1722060    $ 962804, plus 90.00% of excess over $1291545    76.75% effective overall tax rate(computed on tax on middle of income range)
Over $1722060 ........................ $1350267, plus 91.00% of excess over $1722060    78.41% <=> 91.00% effective overall tax rate as income goes to infinity
                                                                              1955     1954                                               using exact decimal values of taxes (not integers)
                                                                              ____     ____
taxable income in 2013 dollars $     10000     tax due in  2013 dollars $     2000     2000     percentage of taxable income= 20.00%    for tax year 1955  percentage of 1954 taxes  100.00%
taxable income in 2013 dollars $     20000     tax due in  2013 dollars $     4056     4057     percentage of taxable income= 20.28%    for tax year 1955  percentage of 1954 taxes  99.97%
taxable income in 2013 dollars $     30000     tax due in  2013 dollars $     6256     6257     percentage of taxable income= 20.85%    for tax year 1955  percentage of 1954 taxes  99.98%
taxable income in 2013 dollars $     40000     tax due in  2013 dollars $     8678     8684     percentage of taxable income= 21.69%    for tax year 1955  percentage of 1954 taxes  99.93%
taxable income in 2013 dollars $     50000     tax due in  2013 dollars $    11278    11284     percentage of taxable income= 22.56%    for tax year 1955  percentage of 1954 taxes  99.94%
taxable income in 2013 dollars $     60000     tax due in  2013 dollars $    14211    14226     percentage of taxable income= 23.69%    for tax year 1955  percentage of 1954 taxes  99.90%
taxable income in 2013 dollars $     70000     tax due in  2013 dollars $    17256    17280     percentage of taxable income= 24.65%    for tax year 1955  percentage of 1954 taxes  99.86%
taxable income in 2013 dollars $     80000     tax due in  2013 dollars $    20656    20680     percentage of taxable income= 25.82%    for tax year 1955  percentage of 1954 taxes  99.88%
taxable income in 2013 dollars $     90000     tax due in  2013 dollars $    24212    24249     percentage of taxable income= 26.90%    for tax year 1955  percentage of 1954 taxes  99.85%
taxable income in 2013 dollars $    100000     tax due in  2013 dollars $    28012    28049     percentage of taxable income= 28.01%    for tax year 1955  percentage of 1954 taxes  99.87%
taxable income in 2013 dollars $    150000     tax due in  2013 dollars $    50891    50981     percentage of taxable income= 33.93%    for tax year 1955  percentage of 1954 taxes  99.82%
taxable income in 2013 dollars $    200000     tax due in  2013 dollars $    78393    78540     percentage of taxable income= 39.20%    for tax year 1955  percentage of 1954 taxes  99.81%
taxable income in 2013 dollars $    250000     tax due in  2013 dollars $   108677   108849     percentage of taxable income= 43.47%    for tax year 1955  percentage of 1954 taxes  99.84%
taxable income in 2013 dollars $    300000     tax due in  2013 dollars $   140411   140614     percentage of taxable income= 46.80%    for tax year 1955  percentage of 1954 taxes  99.86%
taxable income in 2013 dollars $    350000     tax due in  2013 dollars $   173823   174075     percentage of taxable income= 49.66%    for tax year 1955  percentage of 1954 taxes  99.86%
taxable income in 2013 dollars $    400000     tax due in  2013 dollars $   208957   209251     percentage of taxable income= 52.24%    for tax year 1955  percentage of 1954 taxes  99.86%
taxable income in 2013 dollars $    450000     tax due in  2013 dollars $   245542   245884     percentage of taxable income= 54.56%    for tax year 1955  percentage of 1954 taxes  99.86%
taxable income in 2013 dollars $    500000     tax due in  2013 dollars $   283042   283384     percentage of taxable income= 56.61%    for tax year 1955  percentage of 1954 taxes  99.88%
taxable income in 2013 dollars $    600000     tax due in  2013 dollars $   360543   360943     percentage of taxable income= 60.09%    for tax year 1955  percentage of 1954 taxes  99.89%
taxable income in 2013 dollars $    700000     tax due in  2013 dollars $   441797   442341     percentage of taxable income= 63.11%    for tax year 1955  percentage of 1954 taxes  99.88%
taxable income in 2013 dollars $    800000     tax due in  2013 dollars $   526549   527179     percentage of taxable income= 65.82%    for tax year 1955  percentage of 1954 taxes  99.88%
taxable income in 2013 dollars $    900000     tax due in  2013 dollars $   614329   615023     percentage of taxable income= 68.26%    for tax year 1955  percentage of 1954 taxes  99.89%
taxable income in 2013 dollars $   1000000     tax due in  2013 dollars $   703329   704023     percentage of taxable income= 70.33%    for tax year 1955  percentage of 1954 taxes  99.90%

1956 tax rate schedule with ORIGINAL dollar figures(for SINGLE taxpayer)
Historical data for the marginal rates was obtained at the Tax Foundation website at [U.S. Federal Individual Income Tax Rates History, 1913-2011 (Nominal and Inflation-Adjusted Brackets)]
Computation of the actual taxes due and the effective overall tax rate at each level were done by Jeff Sagarin.

Not over $   2000 ................................... 20.00% of the taxable income      20.00% effective overall tax rate
Over $   2000 but not over $   4000    $    400, plus 22.00% of excess over $   2000    20.67% effective overall tax rate(computed on tax on middle of income range)
Over $   4000 but not over $   6000    $    840, plus 26.00% of excess over $   4000    22.00% effective overall tax rate(computed on tax on middle of income range)
Over $   6000 but not over $   8000    $   1360, plus 30.00% of excess over $   6000    23.71% effective overall tax rate(computed on tax on middle of income range)
Over $   8000 but not over $  10000    $   1960, plus 34.00% of excess over $   8000    25.56% effective overall tax rate(computed on tax on middle of income range)
Over $  10000 but not over $  12000    $   2640, plus 38.00% of excess over $  10000    27.45% effective overall tax rate(computed on tax on middle of income range)
Over $  12000 but not over $  14000    $   3400, plus 43.00% of excess over $  12000    29.46% effective overall tax rate(computed on tax on middle of income range)
Over $  14000 but not over $  16000    $   4260, plus 47.00% of excess over $  14000    31.53% effective overall tax rate(computed on tax on middle of income range)
Over $  16000 but not over $  18000    $   5200, plus 50.00% of excess over $  16000    33.53% effective overall tax rate(computed on tax on middle of income range)
Over $  18000 but not over $  20000    $   6200, plus 53.00% of excess over $  18000    35.42% effective overall tax rate(computed on tax on middle of income range)
Over $  20000 but not over $  22000    $   7260, plus 56.00% of excess over $  20000    37.24% effective overall tax rate(computed on tax on middle of income range)
Over $  22000 but not over $  26000    $   8380, plus 59.00% of excess over $  22000    39.83% effective overall tax rate(computed on tax on middle of income range)
Over $  26000 but not over $  32000    $  10740, plus 62.00% of excess over $  26000    43.45% effective overall tax rate(computed on tax on middle of income range)
Over $  32000 but not over $  38000    $  14460, plus 65.00% of excess over $  32000    46.89% effective overall tax rate(computed on tax on middle of income range)
Over $  38000 but not over $  44000    $  18360, plus 69.00% of excess over $  38000    49.83% effective overall tax rate(computed on tax on middle of income range)
Over $  44000 but not over $  50000    $  22500, plus 72.00% of excess over $  44000    52.47% effective overall tax rate(computed on tax on middle of income range)
Over $  50000 but not over $  60000    $  26820, plus 75.00% of excess over $  50000    55.58% effective overall tax rate(computed on tax on middle of income range)
Over $  60000 but not over $  70000    $  34320, plus 78.00% of excess over $  60000    58.80% effective overall tax rate(computed on tax on middle of income range)
Over $  70000 but not over $  80000    $  42120, plus 81.00% of excess over $  70000    61.56% effective overall tax rate(computed on tax on middle of income range)
Over $  80000 but not over $  90000    $  50220, plus 84.00% of excess over $  80000    64.02% effective overall tax rate(computed on tax on middle of income range)
Over $  90000 but not over $ 100000    $  58620, plus 87.00% of excess over $  90000    66.28% effective overall tax rate(computed on tax on middle of income range)
Over $ 100000 but not over $ 150000    $  67320, plus 89.00% of excess over $ 100000    71.66% effective overall tax rate(computed on tax on middle of income range)
Over $ 150000 but not over $ 200000    $ 111820, plus 90.00% of excess over $ 150000    76.75% effective overall tax rate(computed on tax on middle of income range)
Over $ 200000 ........................ $ 156820, plus 91.00% of excess over $ 200000    78.41% <=> 91.00% effective overall tax rate as income goes to infinity
1956 tax rate schedule with figures INFLATION-ADJUSTED to 2013 dollars(for SINGLE taxpayer) ... the multiplier is 8.483676470 based on the average of the last 12 monthly figures through and including April 2013 released in mid-May 2013)
Inflation multiplier was determined from Bureau of Labor Statistics at [CPI Inflation Calculator | Historical Consumer Price Index]
Computation of the actual taxes due and the effective overall tax rate at each level were done by Jeff Sagarin.

Not over $  16967 ................................... 20.00% of the taxable income      20.00% effective overall tax rate
Over $  16967 but not over $  33935    $   3393, plus 22.00% of excess over $  16967    20.67% effective overall tax rate(computed on tax on middle of income range)
Over $  33935 but not over $  50902    $   7126, plus 26.00% of excess over $  33935    22.00% effective overall tax rate(computed on tax on middle of income range)
Over $  50902 but not over $  67869    $  11538, plus 30.00% of excess over $  50902    23.71% effective overall tax rate(computed on tax on middle of income range)
Over $  67869 but not over $  84837    $  16628, plus 34.00% of excess over $  67869    25.56% effective overall tax rate(computed on tax on middle of income range)
Over $  84837 but not over $ 101804    $  22397, plus 38.00% of excess over $  84837    27.45% effective overall tax rate(computed on tax on middle of income range)
Over $ 101804 but not over $ 118771    $  28844, plus 43.00% of excess over $ 101804    29.46% effective overall tax rate(computed on tax on middle of income range)
Over $ 118771 but not over $ 135739    $  36140, plus 47.00% of excess over $ 118771    31.53% effective overall tax rate(computed on tax on middle of income range)
Over $ 135739 but not over $ 152706    $  44115, plus 50.00% of excess over $ 135739    33.53% effective overall tax rate(computed on tax on middle of income range)
Over $ 152706 but not over $ 169674    $  52599, plus 53.00% of excess over $ 152706    35.42% effective overall tax rate(computed on tax on middle of income range)
Over $ 169674 but not over $ 186641    $  61591, plus 56.00% of excess over $ 169674    37.24% effective overall tax rate(computed on tax on middle of income range)
Over $ 186641 but not over $ 220576    $  71093, plus 59.00% of excess over $ 186641    39.83% effective overall tax rate(computed on tax on middle of income range)
Over $ 220576 but not over $ 271478    $  91115, plus 62.00% of excess over $ 220576    43.45% effective overall tax rate(computed on tax on middle of income range)
Over $ 271478 but not over $ 322380    $ 122674, plus 65.00% of excess over $ 271478    46.89% effective overall tax rate(computed on tax on middle of income range)
Over $ 322380 but not over $ 373282    $ 155760, plus 69.00% of excess over $ 322380    49.83% effective overall tax rate(computed on tax on middle of income range)
Over $ 373282 but not over $ 424184    $ 190883, plus 72.00% of excess over $ 373282    52.47% effective overall tax rate(computed on tax on middle of income range)
Over $ 424184 but not over $ 509021    $ 227532, plus 75.00% of excess over $ 424184    55.58% effective overall tax rate(computed on tax on middle of income range)
Over $ 509021 but not over $ 593857    $ 291160, plus 78.00% of excess over $ 509021    58.80% effective overall tax rate(computed on tax on middle of income range)
Over $ 593857 but not over $ 678694    $ 357332, plus 81.00% of excess over $ 593857    61.56% effective overall tax rate(computed on tax on middle of income range)
Over $ 678694 but not over $ 763531    $ 426050, plus 84.00% of excess over $ 678694    64.02% effective overall tax rate(computed on tax on middle of income range)
Over $ 763531 but not over $ 848368    $ 497313, plus 87.00% of excess over $ 763531    66.28% effective overall tax rate(computed on tax on middle of income range)
Over $ 848368 but not over $1272551    $ 571121, plus 89.00% of excess over $ 848368    71.66% effective overall tax rate(computed on tax on middle of income range)
Over $1272551 but not over $1696735    $ 948645, plus 90.00% of excess over $1272551    76.75% effective overall tax rate(computed on tax on middle of income range)
Over $1696735 ........................ $1330410, plus 91.00% of excess over $1696735    78.41% <=> 91.00% effective overall tax rate as income goes to infinity
                                                                              1956     1954                                               using exact decimal values of taxes (not integers)
                                                                              ____     ____
taxable income in 2013 dollars $     10000     tax due in  2013 dollars $     2000     2000     percentage of taxable income= 20.00%    for tax year 1956  percentage of 1954 taxes  100.00%
taxable income in 2013 dollars $     20000     tax due in  2013 dollars $     4061     4057     percentage of taxable income= 20.30%    for tax year 1956  percentage of 1954 taxes  100.09%
taxable income in 2013 dollars $     30000     tax due in  2013 dollars $     6261     6257     percentage of taxable income= 20.87%    for tax year 1956  percentage of 1954 taxes  100.06%
taxable income in 2013 dollars $     40000     tax due in  2013 dollars $     8703     8684     percentage of taxable income= 21.76%    for tax year 1956  percentage of 1954 taxes  100.22%
taxable income in 2013 dollars $     50000     tax due in  2013 dollars $    11303    11284     percentage of taxable income= 22.61%    for tax year 1956  percentage of 1954 taxes  100.17%
taxable income in 2013 dollars $     60000     tax due in  2013 dollars $    14267    14226     percentage of taxable income= 23.78%    for tax year 1956  percentage of 1954 taxes  100.29%
taxable income in 2013 dollars $     70000     tax due in  2013 dollars $    17352    17280     percentage of taxable income= 24.79%    for tax year 1956  percentage of 1954 taxes  100.42%
taxable income in 2013 dollars $     80000     tax due in  2013 dollars $    20752    20680     percentage of taxable income= 25.94%    for tax year 1956  percentage of 1954 taxes  100.35%
taxable income in 2013 dollars $     90000     tax due in  2013 dollars $    24359    24249     percentage of taxable income= 27.07%    for tax year 1956  percentage of 1954 taxes  100.45%
taxable income in 2013 dollars $    100000     tax due in  2013 dollars $    28159    28049     percentage of taxable income= 28.16%    for tax year 1956  percentage of 1954 taxes  100.39%
taxable income in 2013 dollars $    150000     tax due in  2013 dollars $    51246    50981     percentage of taxable income= 34.16%    for tax year 1956  percentage of 1954 taxes  100.52%
taxable income in 2013 dollars $    200000     tax due in  2013 dollars $    78975    78540     percentage of taxable income= 39.49%    for tax year 1956  percentage of 1954 taxes  100.55%
taxable income in 2013 dollars $    250000     tax due in  2013 dollars $   109358   108849     percentage of taxable income= 43.74%    for tax year 1956  percentage of 1954 taxes  100.47%
taxable income in 2013 dollars $    300000     tax due in  2013 dollars $   141213   140614     percentage of taxable income= 47.07%    for tax year 1956  percentage of 1954 taxes  100.43%
taxable income in 2013 dollars $    350000     tax due in  2013 dollars $   174818   174075     percentage of taxable income= 49.95%    for tax year 1956  percentage of 1954 taxes  100.43%
taxable income in 2013 dollars $    400000     tax due in  2013 dollars $   210120   209251     percentage of taxable income= 52.53%    for tax year 1956  percentage of 1954 taxes  100.42%
taxable income in 2013 dollars $    450000     tax due in  2013 dollars $   246894   245884     percentage of taxable income= 54.87%    for tax year 1956  percentage of 1954 taxes  100.41%
taxable income in 2013 dollars $    500000     tax due in  2013 dollars $   284394   283384     percentage of taxable income= 56.88%    for tax year 1956  percentage of 1954 taxes  100.36%
taxable income in 2013 dollars $    600000     tax due in  2013 dollars $   362308   360943     percentage of taxable income= 60.38%    for tax year 1956  percentage of 1954 taxes  100.38%
taxable income in 2013 dollars $    700000     tax due in  2013 dollars $   443947   442341     percentage of taxable income= 63.42%    for tax year 1956  percentage of 1954 taxes  100.36%
taxable income in 2013 dollars $    800000     tax due in  2013 dollars $   529041   527179     percentage of taxable income= 66.13%    for tax year 1956  percentage of 1954 taxes  100.35%
taxable income in 2013 dollars $    900000     tax due in  2013 dollars $   617074   615023     percentage of taxable income= 68.56%    for tax year 1956  percentage of 1954 taxes  100.33%
taxable income in 2013 dollars $   1000000     tax due in  2013 dollars $   706074   704023     percentage of taxable income= 70.61%    for tax year 1956  percentage of 1954 taxes  100.29%

1957 tax rate schedule with ORIGINAL dollar figures(for SINGLE taxpayer)
Historical data for the marginal rates was obtained at the Tax Foundation website at [U.S. Federal Individual Income Tax Rates History, 1913-2011 (Nominal and Inflation-Adjusted Brackets)]
Computation of the actual taxes due and the effective overall tax rate at each level were done by Jeff Sagarin.

Not over $   2000 ................................... 20.00% of the taxable income      20.00% effective overall tax rate
Over $   2000 but not over $   4000    $    400, plus 22.00% of excess over $   2000    20.67% effective overall tax rate(computed on tax on middle of income range)
Over $   4000 but not over $   6000    $    840, plus 26.00% of excess over $   4000    22.00% effective overall tax rate(computed on tax on middle of income range)
Over $   6000 but not over $   8000    $   1360, plus 30.00% of excess over $   6000    23.71% effective overall tax rate(computed on tax on middle of income range)
Over $   8000 but not over $  10000    $   1960, plus 34.00% of excess over $   8000    25.56% effective overall tax rate(computed on tax on middle of income range)
Over $  10000 but not over $  12000    $   2640, plus 38.00% of excess over $  10000    27.45% effective overall tax rate(computed on tax on middle of income range)
Over $  12000 but not over $  14000    $   3400, plus 43.00% of excess over $  12000    29.46% effective overall tax rate(computed on tax on middle of income range)
Over $  14000 but not over $  16000    $   4260, plus 47.00% of excess over $  14000    31.53% effective overall tax rate(computed on tax on middle of income range)
Over $  16000 but not over $  18000    $   5200, plus 50.00% of excess over $  16000    33.53% effective overall tax rate(computed on tax on middle of income range)
Over $  18000 but not over $  20000    $   6200, plus 53.00% of excess over $  18000    35.42% effective overall tax rate(computed on tax on middle of income range)
Over $  20000 but not over $  22000    $   7260, plus 56.00% of excess over $  20000    37.24% effective overall tax rate(computed on tax on middle of income range)
Over $  22000 but not over $  26000    $   8380, plus 59.00% of excess over $  22000    39.83% effective overall tax rate(computed on tax on middle of income range)
Over $  26000 but not over $  32000    $  10740, plus 62.00% of excess over $  26000    43.45% effective overall tax rate(computed on tax on middle of income range)
Over $  32000 but not over $  38000    $  14460, plus 65.00% of excess over $  32000    46.89% effective overall tax rate(computed on tax on middle of income range)
Over $  38000 but not over $  44000    $  18360, plus 69.00% of excess over $  38000    49.83% effective overall tax rate(computed on tax on middle of income range)
Over $  44000 but not over $  50000    $  22500, plus 72.00% of excess over $  44000    52.47% effective overall tax rate(computed on tax on middle of income range)
Over $  50000 but not over $  60000    $  26820, plus 75.00% of excess over $  50000    55.58% effective overall tax rate(computed on tax on middle of income range)
Over $  60000 but not over $  70000    $  34320, plus 78.00% of excess over $  60000    58.80% effective overall tax rate(computed on tax on middle of income range)
Over $  70000 but not over $  80000    $  42120, plus 81.00% of excess over $  70000    61.56% effective overall tax rate(computed on tax on middle of income range)
Over $  80000 but not over $  90000    $  50220, plus 84.00% of excess over $  80000    64.02% effective overall tax rate(computed on tax on middle of income range)
Over $  90000 but not over $ 100000    $  58620, plus 87.00% of excess over $  90000    66.28% effective overall tax rate(computed on tax on middle of income range)
Over $ 100000 but not over $ 150000    $  67320, plus 89.00% of excess over $ 100000    71.66% effective overall tax rate(computed on tax on middle of income range)
Over $ 150000 but not over $ 200000    $ 111820, plus 90.00% of excess over $ 150000    76.75% effective overall tax rate(computed on tax on middle of income range)
Over $ 200000 ........................ $ 156820, plus 91.00% of excess over $ 200000    78.41% <=> 91.00% effective overall tax rate as income goes to infinity
1957 tax rate schedule with figures INFLATION-ADJUSTED to 2013 dollars(for SINGLE taxpayer) ... the multiplier is 8.211957295 based on the average of the last 12 monthly figures through and including April 2013 released in mid-May 2013)
Inflation multiplier was determined from Bureau of Labor Statistics at [CPI Inflation Calculator | Historical Consumer Price Index]
Computation of the actual taxes due and the effective overall tax rate at each level were done by Jeff Sagarin.

Not over $  16424 ................................... 20.00% of the taxable income      20.00% effective overall tax rate
Over $  16424 but not over $  32848    $   3285, plus 22.00% of excess over $  16424    20.67% effective overall tax rate(computed on tax on middle of income range)
Over $  32848 but not over $  49272    $   6898, plus 26.00% of excess over $  32848    22.00% effective overall tax rate(computed on tax on middle of income range)
Over $  49272 but not over $  65696    $  11168, plus 30.00% of excess over $  49272    23.71% effective overall tax rate(computed on tax on middle of income range)
Over $  65696 but not over $  82120    $  16095, plus 34.00% of excess over $  65696    25.56% effective overall tax rate(computed on tax on middle of income range)
Over $  82120 but not over $  98543    $  21680, plus 38.00% of excess over $  82120    27.45% effective overall tax rate(computed on tax on middle of income range)
Over $  98543 but not over $ 114967    $  27921, plus 43.00% of excess over $  98543    29.46% effective overall tax rate(computed on tax on middle of income range)
Over $ 114967 but not over $ 131391    $  34983, plus 47.00% of excess over $ 114967    31.53% effective overall tax rate(computed on tax on middle of income range)
Over $ 131391 but not over $ 147815    $  42702, plus 50.00% of excess over $ 131391    33.53% effective overall tax rate(computed on tax on middle of income range)
Over $ 147815 but not over $ 164239    $  50914, plus 53.00% of excess over $ 147815    35.42% effective overall tax rate(computed on tax on middle of income range)
Over $ 164239 but not over $ 180663    $  59619, plus 56.00% of excess over $ 164239    37.24% effective overall tax rate(computed on tax on middle of income range)
Over $ 180663 but not over $ 213511    $  68816, plus 59.00% of excess over $ 180663    39.83% effective overall tax rate(computed on tax on middle of income range)
Over $ 213511 but not over $ 262783    $  88196, plus 62.00% of excess over $ 213511    43.45% effective overall tax rate(computed on tax on middle of income range)
Over $ 262783 but not over $ 312054    $ 118745, plus 65.00% of excess over $ 262783    46.89% effective overall tax rate(computed on tax on middle of income range)
Over $ 312054 but not over $ 361326    $ 150772, plus 69.00% of excess over $ 312054    49.83% effective overall tax rate(computed on tax on middle of income range)
Over $ 361326 but not over $ 410598    $ 184769, plus 72.00% of excess over $ 361326    52.47% effective overall tax rate(computed on tax on middle of income range)
Over $ 410598 but not over $ 492717    $ 220245, plus 75.00% of excess over $ 410598    55.58% effective overall tax rate(computed on tax on middle of income range)
Over $ 492717 but not over $ 574837    $ 281834, plus 78.00% of excess over $ 492717    58.80% effective overall tax rate(computed on tax on middle of income range)
Over $ 574837 but not over $ 656957    $ 345888, plus 81.00% of excess over $ 574837    61.56% effective overall tax rate(computed on tax on middle of income range)
Over $ 656957 but not over $ 739076    $ 412404, plus 84.00% of excess over $ 656957    64.02% effective overall tax rate(computed on tax on middle of income range)
Over $ 739076 but not over $ 821196    $ 481385, plus 87.00% of excess over $ 739076    66.28% effective overall tax rate(computed on tax on middle of income range)
Over $ 821196 but not over $1231794    $ 552829, plus 89.00% of excess over $ 821196    71.66% effective overall tax rate(computed on tax on middle of income range)
Over $1231794 but not over $1642391    $ 918261, plus 90.00% of excess over $1231794    76.75% effective overall tax rate(computed on tax on middle of income range)
Over $1642391 ........................ $1287799, plus 91.00% of excess over $1642391    78.41% <=> 91.00% effective overall tax rate as income goes to infinity
                                                                              1957     1954                                               using exact decimal values of taxes (not integers)
                                                                              ____     ____
taxable income in 2013 dollars $     10000     tax due in  2013 dollars $     2000     2000     percentage of taxable income= 20.00%    for tax year 1957  percentage of 1954 taxes  100.00%
taxable income in 2013 dollars $     20000     tax due in  2013 dollars $     4072     4057     percentage of taxable income= 20.36%    for tax year 1957  percentage of 1954 taxes  100.36%
taxable income in 2013 dollars $     30000     tax due in  2013 dollars $     6272     6257     percentage of taxable income= 20.91%    for tax year 1957  percentage of 1954 taxes  100.23%
taxable income in 2013 dollars $     40000     tax due in  2013 dollars $     8758     8684     percentage of taxable income= 21.89%    for tax year 1957  percentage of 1954 taxes  100.84%
taxable income in 2013 dollars $     50000     tax due in  2013 dollars $    11387    11284     percentage of taxable income= 22.77%    for tax year 1957  percentage of 1954 taxes  100.91%
taxable income in 2013 dollars $     60000     tax due in  2013 dollars $    14387    14226     percentage of taxable income= 23.98%    for tax year 1957  percentage of 1954 taxes  101.13%
taxable income in 2013 dollars $     70000     tax due in  2013 dollars $    17559    17280     percentage of taxable income= 25.08%    for tax year 1957  percentage of 1954 taxes  101.61%
taxable income in 2013 dollars $     80000     tax due in  2013 dollars $    20959    20680     percentage of taxable income= 26.20%    for tax year 1957  percentage of 1954 taxes  101.35%
taxable income in 2013 dollars $     90000     tax due in  2013 dollars $    24674    24249     percentage of taxable income= 27.42%    for tax year 1957  percentage of 1954 taxes  101.75%
taxable income in 2013 dollars $    100000     tax due in  2013 dollars $    28547    28049     percentage of taxable income= 28.55%    for tax year 1957  percentage of 1954 taxes  101.77%
taxable income in 2013 dollars $    150000     tax due in  2013 dollars $    52072    50981     percentage of taxable income= 34.71%    for tax year 1957  percentage of 1954 taxes  102.14%
taxable income in 2013 dollars $    200000     tax due in  2013 dollars $    80225    78540     percentage of taxable income= 40.11%    for tax year 1957  percentage of 1954 taxes  102.15%
taxable income in 2013 dollars $    250000     tax due in  2013 dollars $   110820   108849     percentage of taxable income= 44.33%    for tax year 1957  percentage of 1954 taxes  101.81%
taxable income in 2013 dollars $    300000     tax due in  2013 dollars $   142936   140614     percentage of taxable income= 47.65%    for tax year 1957  percentage of 1954 taxes  101.65%
taxable income in 2013 dollars $    350000     tax due in  2013 dollars $   176954   174075     percentage of taxable income= 50.56%    for tax year 1957  percentage of 1954 taxes  101.65%
taxable income in 2013 dollars $    400000     tax due in  2013 dollars $   212614   209251     percentage of taxable income= 53.15%    for tax year 1957  percentage of 1954 taxes  101.61%
taxable income in 2013 dollars $    450000     tax due in  2013 dollars $   249796   245884     percentage of taxable income= 55.51%    for tax year 1957  percentage of 1954 taxes  101.59%
taxable income in 2013 dollars $    500000     tax due in  2013 dollars $   287515   283384     percentage of taxable income= 57.50%    for tax year 1957  percentage of 1954 taxes  101.46%
taxable income in 2013 dollars $    600000     tax due in  2013 dollars $   366270   360943     percentage of taxable income= 61.04%    for tax year 1957  percentage of 1954 taxes  101.48%
taxable income in 2013 dollars $    700000     tax due in  2013 dollars $   448561   442341     percentage of taxable income= 64.08%    for tax year 1957  percentage of 1954 taxes  101.41%
taxable income in 2013 dollars $    800000     tax due in  2013 dollars $   534389   527179     percentage of taxable income= 66.80%    for tax year 1957  percentage of 1954 taxes  101.37%
taxable income in 2013 dollars $    900000     tax due in  2013 dollars $   622965   615023     percentage of taxable income= 69.22%    for tax year 1957  percentage of 1954 taxes  101.29%
taxable income in 2013 dollars $   1000000     tax due in  2013 dollars $   711965   704023     percentage of taxable income= 71.20%    for tax year 1957  percentage of 1954 taxes  101.13%

1958 tax rate schedule with ORIGINAL dollar figures(for SINGLE taxpayer)
Historical data for the marginal rates was obtained at the Tax Foundation website at [U.S. Federal Individual Income Tax Rates History, 1913-2011 (Nominal and Inflation-Adjusted Brackets)]
Computation of the actual taxes due and the effective overall tax rate at each level were done by Jeff Sagarin.

Not over $   2000 ................................... 20.00% of the taxable income      20.00% effective overall tax rate
Over $   2000 but not over $   4000    $    400, plus 22.00% of excess over $   2000    20.67% effective overall tax rate(computed on tax on middle of income range)
Over $   4000 but not over $   6000    $    840, plus 26.00% of excess over $   4000    22.00% effective overall tax rate(computed on tax on middle of income range)
Over $   6000 but not over $   8000    $   1360, plus 30.00% of excess over $   6000    23.71% effective overall tax rate(computed on tax on middle of income range)
Over $   8000 but not over $  10000    $   1960, plus 34.00% of excess over $   8000    25.56% effective overall tax rate(computed on tax on middle of income range)
Over $  10000 but not over $  12000    $   2640, plus 38.00% of excess over $  10000    27.45% effective overall tax rate(computed on tax on middle of income range)
Over $  12000 but not over $  14000    $   3400, plus 43.00% of excess over $  12000    29.46% effective overall tax rate(computed on tax on middle of income range)
Over $  14000 but not over $  16000    $   4260, plus 47.00% of excess over $  14000    31.53% effective overall tax rate(computed on tax on middle of income range)
Over $  16000 but not over $  18000    $   5200, plus 50.00% of excess over $  16000    33.53% effective overall tax rate(computed on tax on middle of income range)
Over $  18000 but not over $  20000    $   6200, plus 53.00% of excess over $  18000    35.42% effective overall tax rate(computed on tax on middle of income range)
Over $  20000 but not over $  22000    $   7260, plus 56.00% of excess over $  20000    37.24% effective overall tax rate(computed on tax on middle of income range)
Over $  22000 but not over $  26000    $   8380, plus 59.00% of excess over $  22000    39.83% effective overall tax rate(computed on tax on middle of income range)
Over $  26000 but not over $  32000    $  10740, plus 62.00% of excess over $  26000    43.45% effective overall tax rate(computed on tax on middle of income range)
Over $  32000 but not over $  38000    $  14460, plus 65.00% of excess over $  32000    46.89% effective overall tax rate(computed on tax on middle of income range)
Over $  38000 but not over $  44000    $  18360, plus 69.00% of excess over $  38000    49.83% effective overall tax rate(computed on tax on middle of income range)
Over $  44000 but not over $  50000    $  22500, plus 72.00% of excess over $  44000    52.47% effective overall tax rate(computed on tax on middle of income range)
Over $  50000 but not over $  60000    $  26820, plus 75.00% of excess over $  50000    55.58% effective overall tax rate(computed on tax on middle of income range)
Over $  60000 but not over $  70000    $  34320, plus 78.00% of excess over $  60000    58.80% effective overall tax rate(computed on tax on middle of income range)
Over $  70000 but not over $  80000    $  42120, plus 81.00% of excess over $  70000    61.56% effective overall tax rate(computed on tax on middle of income range)
Over $  80000 but not over $  90000    $  50220, plus 84.00% of excess over $  80000    64.02% effective overall tax rate(computed on tax on middle of income range)
Over $  90000 but not over $ 100000    $  58620, plus 87.00% of excess over $  90000    66.28% effective overall tax rate(computed on tax on middle of income range)
Over $ 100000 but not over $ 150000    $  67320, plus 89.00% of excess over $ 100000    71.66% effective overall tax rate(computed on tax on middle of income range)
Over $ 150000 but not over $ 200000    $ 111820, plus 90.00% of excess over $ 150000    76.75% effective overall tax rate(computed on tax on middle of income range)
Over $ 200000 ........................ $ 156820, plus 91.00% of excess over $ 200000    78.41% <=> 91.00% effective overall tax rate as income goes to infinity
1958 tax rate schedule with figures INFLATION-ADJUSTED to 2013 dollars(for SINGLE taxpayer) ... the multiplier is 7.984636678 based on the average of the last 12 monthly figures through and including April 2013 released in mid-May 2013)
Inflation multiplier was determined from Bureau of Labor Statistics at [CPI Inflation Calculator | Historical Consumer Price Index]
Computation of the actual taxes due and the effective overall tax rate at each level were done by Jeff Sagarin.

Not over $  15969 ................................... 20.00% of the taxable income      20.00% effective overall tax rate
Over $  15969 but not over $  31939    $   3194, plus 22.00% of excess over $  15969    20.67% effective overall tax rate(computed on tax on middle of income range)
Over $  31939 but not over $  47908    $   6707, plus 26.00% of excess over $  31939    22.00% effective overall tax rate(computed on tax on middle of income range)
Over $  47908 but not over $  63877    $  10859, plus 30.00% of excess over $  47908    23.71% effective overall tax rate(computed on tax on middle of income range)
Over $  63877 but not over $  79846    $  15650, plus 34.00% of excess over $  63877    25.56% effective overall tax rate(computed on tax on middle of income range)
Over $  79846 but not over $  95816    $  21079, plus 38.00% of excess over $  79846    27.45% effective overall tax rate(computed on tax on middle of income range)
Over $  95816 but not over $ 111785    $  27148, plus 43.00% of excess over $  95816    29.46% effective overall tax rate(computed on tax on middle of income range)
Over $ 111785 but not over $ 127754    $  34015, plus 47.00% of excess over $ 111785    31.53% effective overall tax rate(computed on tax on middle of income range)
Over $ 127754 but not over $ 143723    $  41520, plus 50.00% of excess over $ 127754    33.53% effective overall tax rate(computed on tax on middle of income range)
Over $ 143723 but not over $ 159693    $  49505, plus 53.00% of excess over $ 143723    35.42% effective overall tax rate(computed on tax on middle of income range)
Over $ 159693 but not over $ 175662    $  57968, plus 56.00% of excess over $ 159693    37.24% effective overall tax rate(computed on tax on middle of income range)
Over $ 175662 but not over $ 207601    $  66911, plus 59.00% of excess over $ 175662    39.83% effective overall tax rate(computed on tax on middle of income range)
Over $ 207601 but not over $ 255508    $  85755, plus 62.00% of excess over $ 207601    43.45% effective overall tax rate(computed on tax on middle of income range)
Over $ 255508 but not over $ 303416    $ 115458, plus 65.00% of excess over $ 255508    46.89% effective overall tax rate(computed on tax on middle of income range)
Over $ 303416 but not over $ 351324    $ 146598, plus 69.00% of excess over $ 303416    49.83% effective overall tax rate(computed on tax on middle of income range)
Over $ 351324 but not over $ 399232    $ 179654, plus 72.00% of excess over $ 351324    52.47% effective overall tax rate(computed on tax on middle of income range)
Over $ 399232 but not over $ 479078    $ 214148, plus 75.00% of excess over $ 399232    55.58% effective overall tax rate(computed on tax on middle of income range)
Over $ 479078 but not over $ 558925    $ 274033, plus 78.00% of excess over $ 479078    58.80% effective overall tax rate(computed on tax on middle of income range)
Over $ 558925 but not over $ 638771    $ 336313, plus 81.00% of excess over $ 558925    61.56% effective overall tax rate(computed on tax on middle of income range)
Over $ 638771 but not over $ 718617    $ 400988, plus 84.00% of excess over $ 638771    64.02% effective overall tax rate(computed on tax on middle of income range)
Over $ 718617 but not over $ 798464    $ 468059, plus 87.00% of excess over $ 718617    66.28% effective overall tax rate(computed on tax on middle of income range)
Over $ 798464 but not over $1197696    $ 537526, plus 89.00% of excess over $ 798464    71.66% effective overall tax rate(computed on tax on middle of income range)
Over $1197696 but not over $1596927    $ 892842, plus 90.00% of excess over $1197696    76.75% effective overall tax rate(computed on tax on middle of income range)
Over $1596927 ........................ $1252151, plus 91.00% of excess over $1596927    78.41% <=> 91.00% effective overall tax rate as income goes to infinity
                                                                              1958     1954                                               using exact decimal values of taxes (not integers)
                                                                              ____     ____
taxable income in 2013 dollars $     10000     tax due in  2013 dollars $     2000     2000     percentage of taxable income= 20.00%    for tax year 1958  percentage of 1954 taxes  100.00%
taxable income in 2013 dollars $     20000     tax due in  2013 dollars $     4081     4057     percentage of taxable income= 20.40%    for tax year 1958  percentage of 1954 taxes  100.59%
taxable income in 2013 dollars $     30000     tax due in  2013 dollars $     6281     6257     percentage of taxable income= 20.94%    for tax year 1958  percentage of 1954 taxes  100.38%
taxable income in 2013 dollars $     40000     tax due in  2013 dollars $     8803     8684     percentage of taxable income= 22.01%    for tax year 1958  percentage of 1954 taxes  101.37%
taxable income in 2013 dollars $     50000     tax due in  2013 dollars $    11487    11284     percentage of taxable income= 22.97%    for tax year 1958  percentage of 1954 taxes  101.79%
taxable income in 2013 dollars $     60000     tax due in  2013 dollars $    14487    14226     percentage of taxable income= 24.14%    for tax year 1958  percentage of 1954 taxes  101.84%
taxable income in 2013 dollars $     70000     tax due in  2013 dollars $    17732    17280     percentage of taxable income= 25.33%    for tax year 1958  percentage of 1954 taxes  102.61%
taxable income in 2013 dollars $     80000     tax due in  2013 dollars $    21138    20680     percentage of taxable income= 26.42%    for tax year 1958  percentage of 1954 taxes  102.21%
taxable income in 2013 dollars $     90000     tax due in  2013 dollars $    24938    24249     percentage of taxable income= 27.71%    for tax year 1958  percentage of 1954 taxes  102.84%
taxable income in 2013 dollars $    100000     tax due in  2013 dollars $    28947    28049     percentage of taxable income= 28.95%    for tax year 1958  percentage of 1954 taxes  103.20%
taxable income in 2013 dollars $    150000     tax due in  2013 dollars $    52831    50981     percentage of taxable income= 35.22%    for tax year 1958  percentage of 1954 taxes  103.63%
taxable income in 2013 dollars $    200000     tax due in  2013 dollars $    81271    78540     percentage of taxable income= 40.64%    for tax year 1958  percentage of 1954 taxes  103.48%
taxable income in 2013 dollars $    250000     tax due in  2013 dollars $   112043   108849     percentage of taxable income= 44.82%    for tax year 1958  percentage of 1954 taxes  102.93%
taxable income in 2013 dollars $    300000     tax due in  2013 dollars $   144377   140614     percentage of taxable income= 48.13%    for tax year 1958  percentage of 1954 taxes  102.68%
taxable income in 2013 dollars $    350000     tax due in  2013 dollars $   178741   174075     percentage of taxable income= 51.07%    for tax year 1958  percentage of 1954 taxes  102.68%
taxable income in 2013 dollars $    400000     tax due in  2013 dollars $   214724   209251     percentage of taxable income= 53.68%    for tax year 1958  percentage of 1954 taxes  102.62%
taxable income in 2013 dollars $    450000     tax due in  2013 dollars $   252224   245884     percentage of taxable income= 56.05%    for tax year 1958  percentage of 1954 taxes  102.58%
taxable income in 2013 dollars $    500000     tax due in  2013 dollars $   290352   283384     percentage of taxable income= 58.07%    for tax year 1958  percentage of 1954 taxes  102.46%
taxable income in 2013 dollars $    600000     tax due in  2013 dollars $   369584   360943     percentage of taxable income= 61.60%    for tax year 1958  percentage of 1954 taxes  102.39%
taxable income in 2013 dollars $    700000     tax due in  2013 dollars $   452421   442341     percentage of taxable income= 64.63%    for tax year 1958  percentage of 1954 taxes  102.28%
taxable income in 2013 dollars $    800000     tax due in  2013 dollars $   538893   527179     percentage of taxable income= 67.36%    for tax year 1958  percentage of 1954 taxes  102.22%
taxable income in 2013 dollars $    900000     tax due in  2013 dollars $   627893   615023     percentage of taxable income= 69.77%    for tax year 1958  percentage of 1954 taxes  102.09%
taxable income in 2013 dollars $   1000000     tax due in  2013 dollars $   716893   704023     percentage of taxable income= 71.69%    for tax year 1958  percentage of 1954 taxes  101.83%

1959 tax rate schedule with ORIGINAL dollar figures(for SINGLE taxpayer)
Historical data for the marginal rates was obtained at the Tax Foundation website at [U.S. Federal Individual Income Tax Rates History, 1913-2011 (Nominal and Inflation-Adjusted Brackets)]
Computation of the actual taxes due and the effective overall tax rate at each level were done by Jeff Sagarin.

Not over $   2000 ................................... 20.00% of the taxable income      20.00% effective overall tax rate
Over $   2000 but not over $   4000    $    400, plus 22.00% of excess over $   2000    20.67% effective overall tax rate(computed on tax on middle of income range)
Over $   4000 but not over $   6000    $    840, plus 26.00% of excess over $   4000    22.00% effective overall tax rate(computed on tax on middle of income range)
Over $   6000 but not over $   8000    $   1360, plus 30.00% of excess over $   6000    23.71% effective overall tax rate(computed on tax on middle of income range)
Over $   8000 but not over $  10000    $   1960, plus 34.00% of excess over $   8000    25.56% effective overall tax rate(computed on tax on middle of income range)
Over $  10000 but not over $  12000    $   2640, plus 38.00% of excess over $  10000    27.45% effective overall tax rate(computed on tax on middle of income range)
Over $  12000 but not over $  14000    $   3400, plus 43.00% of excess over $  12000    29.46% effective overall tax rate(computed on tax on middle of income range)
Over $  14000 but not over $  16000    $   4260, plus 47.00% of excess over $  14000    31.53% effective overall tax rate(computed on tax on middle of income range)
Over $  16000 but not over $  18000    $   5200, plus 50.00% of excess over $  16000    33.53% effective overall tax rate(computed on tax on middle of income range)
Over $  18000 but not over $  20000    $   6200, plus 53.00% of excess over $  18000    35.42% effective overall tax rate(computed on tax on middle of income range)
Over $  20000 but not over $  22000    $   7260, plus 56.00% of excess over $  20000    37.24% effective overall tax rate(computed on tax on middle of income range)
Over $  22000 but not over $  26000    $   8380, plus 59.00% of excess over $  22000    39.83% effective overall tax rate(computed on tax on middle of income range)
Over $  26000 but not over $  32000    $  10740, plus 62.00% of excess over $  26000    43.45% effective overall tax rate(computed on tax on middle of income range)
Over $  32000 but not over $  38000    $  14460, plus 65.00% of excess over $  32000    46.89% effective overall tax rate(computed on tax on middle of income range)
Over $  38000 but not over $  44000    $  18360, plus 69.00% of excess over $  38000    49.83% effective overall tax rate(computed on tax on middle of income range)
Over $  44000 but not over $  50000    $  22500, plus 72.00% of excess over $  44000    52.47% effective overall tax rate(computed on tax on middle of income range)
Over $  50000 but not over $  60000    $  26820, plus 75.00% of excess over $  50000    55.58% effective overall tax rate(computed on tax on middle of income range)
Over $  60000 but not over $  70000    $  34320, plus 78.00% of excess over $  60000    58.80% effective overall tax rate(computed on tax on middle of income range)
Over $  70000 but not over $  80000    $  42120, plus 81.00% of excess over $  70000    61.56% effective overall tax rate(computed on tax on middle of income range)
Over $  80000 but not over $  90000    $  50220, plus 84.00% of excess over $  80000    64.02% effective overall tax rate(computed on tax on middle of income range)
Over $  90000 but not over $ 100000    $  58620, plus 87.00% of excess over $  90000    66.28% effective overall tax rate(computed on tax on middle of income range)
Over $ 100000 but not over $ 150000    $  67320, plus 89.00% of excess over $ 100000    71.66% effective overall tax rate(computed on tax on middle of income range)
Over $ 150000 but not over $ 200000    $ 111820, plus 90.00% of excess over $ 150000    76.75% effective overall tax rate(computed on tax on middle of income range)
Over $ 200000 ........................ $ 156820, plus 91.00% of excess over $ 200000    78.41% <=> 91.00% effective overall tax rate as income goes to infinity
1959 tax rate schedule with figures INFLATION-ADJUSTED to 2013 dollars(for SINGLE taxpayer) ... the multiplier is 7.929759450 based on the average of the last 12 monthly figures through and including April 2013 released in mid-May 2013)
Inflation multiplier was determined from Bureau of Labor Statistics at [CPI Inflation Calculator | Historical Consumer Price Index]
Computation of the actual taxes due and the effective overall tax rate at each level were done by Jeff Sagarin.

Not over $  15860 ................................... 20.00% of the taxable income      20.00% effective overall tax rate
Over $  15860 but not over $  31719    $   3172, plus 22.00% of excess over $  15860    20.67% effective overall tax rate(computed on tax on middle of income range)
Over $  31719 but not over $  47579    $   6661, plus 26.00% of excess over $  31719    22.00% effective overall tax rate(computed on tax on middle of income range)
Over $  47579 but not over $  63438    $  10784, plus 30.00% of excess over $  47579    23.71% effective overall tax rate(computed on tax on middle of income range)
Over $  63438 but not over $  79298    $  15542, plus 34.00% of excess over $  63438    25.56% effective overall tax rate(computed on tax on middle of income range)
Over $  79298 but not over $  95157    $  20935, plus 38.00% of excess over $  79298    27.45% effective overall tax rate(computed on tax on middle of income range)
Over $  95157 but not over $ 111017    $  26961, plus 43.00% of excess over $  95157    29.46% effective overall tax rate(computed on tax on middle of income range)
Over $ 111017 but not over $ 126876    $  33781, plus 47.00% of excess over $ 111017    31.53% effective overall tax rate(computed on tax on middle of income range)
Over $ 126876 but not over $ 142736    $  41235, plus 50.00% of excess over $ 126876    33.53% effective overall tax rate(computed on tax on middle of income range)
Over $ 142736 but not over $ 158595    $  49165, plus 53.00% of excess over $ 142736    35.42% effective overall tax rate(computed on tax on middle of income range)
Over $ 158595 but not over $ 174455    $  57570, plus 56.00% of excess over $ 158595    37.24% effective overall tax rate(computed on tax on middle of income range)
Over $ 174455 but not over $ 206174    $  66451, plus 59.00% of excess over $ 174455    39.83% effective overall tax rate(computed on tax on middle of income range)
Over $ 206174 but not over $ 253752    $  85166, plus 62.00% of excess over $ 206174    43.45% effective overall tax rate(computed on tax on middle of income range)
Over $ 253752 but not over $ 301331    $ 114664, plus 65.00% of excess over $ 253752    46.89% effective overall tax rate(computed on tax on middle of income range)
Over $ 301331 but not over $ 348909    $ 145590, plus 69.00% of excess over $ 301331    49.83% effective overall tax rate(computed on tax on middle of income range)
Over $ 348909 but not over $ 396488    $ 178420, plus 72.00% of excess over $ 348909    52.47% effective overall tax rate(computed on tax on middle of income range)
Over $ 396488 but not over $ 475786    $ 212676, plus 75.00% of excess over $ 396488    55.58% effective overall tax rate(computed on tax on middle of income range)
Over $ 475786 but not over $ 555083    $ 272149, plus 78.00% of excess over $ 475786    58.80% effective overall tax rate(computed on tax on middle of income range)
Over $ 555083 but not over $ 634381    $ 334001, plus 81.00% of excess over $ 555083    61.56% effective overall tax rate(computed on tax on middle of income range)
Over $ 634381 but not over $ 713678    $ 398233, plus 84.00% of excess over $ 634381    64.02% effective overall tax rate(computed on tax on middle of income range)
Over $ 713678 but not over $ 792976    $ 464842, plus 87.00% of excess over $ 713678    66.28% effective overall tax rate(computed on tax on middle of income range)
Over $ 792976 but not over $1189464    $ 533831, plus 89.00% of excess over $ 792976    71.66% effective overall tax rate(computed on tax on middle of income range)
Over $1189464 but not over $1585952    $ 886706, plus 90.00% of excess over $1189464    76.75% effective overall tax rate(computed on tax on middle of income range)
Over $1585952 ........................ $1243545, plus 91.00% of excess over $1585952    78.41% <=> 91.00% effective overall tax rate as income goes to infinity
                                                                              1959     1954                                               using exact decimal values of taxes (not integers)
                                                                              ____     ____
taxable income in 2013 dollars $     10000     tax due in  2013 dollars $     2000     2000     percentage of taxable income= 20.00%    for tax year 1959  percentage of 1954 taxes  100.00%
taxable income in 2013 dollars $     20000     tax due in  2013 dollars $     4083     4057     percentage of taxable income= 20.41%    for tax year 1959  percentage of 1954 taxes  100.64%
taxable income in 2013 dollars $     30000     tax due in  2013 dollars $     6283     6257     percentage of taxable income= 20.94%    for tax year 1959  percentage of 1954 taxes  100.41%
taxable income in 2013 dollars $     40000     tax due in  2013 dollars $     8814     8684     percentage of taxable income= 22.04%    for tax year 1959  percentage of 1954 taxes  101.49%
taxable income in 2013 dollars $     50000     tax due in  2013 dollars $    11511    11284     percentage of taxable income= 23.02%    for tax year 1959  percentage of 1954 taxes  102.01%
taxable income in 2013 dollars $     60000     tax due in  2013 dollars $    14511    14226     percentage of taxable income= 24.18%    for tax year 1959  percentage of 1954 taxes  102.01%
taxable income in 2013 dollars $     70000     tax due in  2013 dollars $    17773    17280     percentage of taxable income= 25.39%    for tax year 1959  percentage of 1954 taxes  102.85%
taxable income in 2013 dollars $     80000     tax due in  2013 dollars $    21201    20680     percentage of taxable income= 26.50%    for tax year 1959  percentage of 1954 taxes  102.52%
taxable income in 2013 dollars $     90000     tax due in  2013 dollars $    25001    24249     percentage of taxable income= 27.78%    for tax year 1959  percentage of 1954 taxes  103.10%
taxable income in 2013 dollars $    100000     tax due in  2013 dollars $    29044    28049     percentage of taxable income= 29.04%    for tax year 1959  percentage of 1954 taxes  103.55%
taxable income in 2013 dollars $    150000     tax due in  2013 dollars $    53015    50981     percentage of taxable income= 35.34%    for tax year 1959  percentage of 1954 taxes  103.99%
taxable income in 2013 dollars $    200000     tax due in  2013 dollars $    81523    78540     percentage of taxable income= 40.76%    for tax year 1959  percentage of 1954 taxes  103.80%
taxable income in 2013 dollars $    250000     tax due in  2013 dollars $   112338   108849     percentage of taxable income= 44.94%    for tax year 1959  percentage of 1954 taxes  103.21%
taxable income in 2013 dollars $    300000     tax due in  2013 dollars $   144725   140614     percentage of taxable income= 48.24%    for tax year 1959  percentage of 1954 taxes  102.92%
taxable income in 2013 dollars $    350000     tax due in  2013 dollars $   179205   174075     percentage of taxable income= 51.20%    for tax year 1959  percentage of 1954 taxes  102.95%
taxable income in 2013 dollars $    400000     tax due in  2013 dollars $   215310   209251     percentage of taxable income= 53.83%    for tax year 1959  percentage of 1954 taxes  102.90%
taxable income in 2013 dollars $    450000     tax due in  2013 dollars $   252810   245884     percentage of taxable income= 56.18%    for tax year 1959  percentage of 1954 taxes  102.82%
taxable income in 2013 dollars $    500000     tax due in  2013 dollars $   291037   283384     percentage of taxable income= 58.21%    for tax year 1959  percentage of 1954 taxes  102.70%
taxable income in 2013 dollars $    600000     tax due in  2013 dollars $   370384   360943     percentage of taxable income= 61.73%    for tax year 1959  percentage of 1954 taxes  102.62%
taxable income in 2013 dollars $    700000     tax due in  2013 dollars $   453353   442341     percentage of taxable income= 64.76%    for tax year 1959  percentage of 1954 taxes  102.49%
taxable income in 2013 dollars $    800000     tax due in  2013 dollars $   540083   527179     percentage of taxable income= 67.51%    for tax year 1959  percentage of 1954 taxes  102.45%
taxable income in 2013 dollars $    900000     tax due in  2013 dollars $   629083   615023     percentage of taxable income= 69.90%    for tax year 1959  percentage of 1954 taxes  102.29%
taxable income in 2013 dollars $   1000000     tax due in  2013 dollars $   718083   704023     percentage of taxable income= 71.81%    for tax year 1959  percentage of 1954 taxes  102.00%

1960 tax rate schedule with ORIGINAL dollar figures(for SINGLE taxpayer)
Historical data for the marginal rates was obtained at the Tax Foundation website at [U.S. Federal Individual Income Tax Rates History, 1913-2011 (Nominal and Inflation-Adjusted Brackets)]
Computation of the actual taxes due and the effective overall tax rate at each level were done by Jeff Sagarin.

Not over $   2000 ................................... 20.00% of the taxable income      20.00% effective overall tax rate
Over $   2000 but not over $   4000    $    400, plus 22.00% of excess over $   2000    20.67% effective overall tax rate(computed on tax on middle of income range)
Over $   4000 but not over $   6000    $    840, plus 26.00% of excess over $   4000    22.00% effective overall tax rate(computed on tax on middle of income range)
Over $   6000 but not over $   8000    $   1360, plus 30.00% of excess over $   6000    23.71% effective overall tax rate(computed on tax on middle of income range)
Over $   8000 but not over $  10000    $   1960, plus 34.00% of excess over $   8000    25.56% effective overall tax rate(computed on tax on middle of income range)
Over $  10000 but not over $  12000    $   2640, plus 38.00% of excess over $  10000    27.45% effective overall tax rate(computed on tax on middle of income range)
Over $  12000 but not over $  14000    $   3400, plus 43.00% of excess over $  12000    29.46% effective overall tax rate(computed on tax on middle of income range)
Over $  14000 but not over $  16000    $   4260, plus 47.00% of excess over $  14000    31.53% effective overall tax rate(computed on tax on middle of income range)
Over $  16000 but not over $  18000    $   5200, plus 50.00% of excess over $  16000    33.53% effective overall tax rate(computed on tax on middle of income range)
Over $  18000 but not over $  20000    $   6200, plus 53.00% of excess over $  18000    35.42% effective overall tax rate(computed on tax on middle of income range)
Over $  20000 but not over $  22000    $   7260, plus 56.00% of excess over $  20000    37.24% effective overall tax rate(computed on tax on middle of income range)
Over $  22000 but not over $  26000    $   8380, plus 59.00% of excess over $  22000    39.83% effective overall tax rate(computed on tax on middle of income range)
Over $  26000 but not over $  32000    $  10740, plus 62.00% of excess over $  26000    43.45% effective overall tax rate(computed on tax on middle of income range)
Over $  32000 but not over $  38000    $  14460, plus 65.00% of excess over $  32000    46.89% effective overall tax rate(computed on tax on middle of income range)
Over $  38000 but not over $  44000    $  18360, plus 69.00% of excess over $  38000    49.83% effective overall tax rate(computed on tax on middle of income range)
Over $  44000 but not over $  50000    $  22500, plus 72.00% of excess over $  44000    52.47% effective overall tax rate(computed on tax on middle of income range)
Over $  50000 but not over $  60000    $  26820, plus 75.00% of excess over $  50000    55.58% effective overall tax rate(computed on tax on middle of income range)
Over $  60000 but not over $  70000    $  34320, plus 78.00% of excess over $  60000    58.80% effective overall tax rate(computed on tax on middle of income range)
Over $  70000 but not over $  80000    $  42120, plus 81.00% of excess over $  70000    61.56% effective overall tax rate(computed on tax on middle of income range)
Over $  80000 but not over $  90000    $  50220, plus 84.00% of excess over $  80000    64.02% effective overall tax rate(computed on tax on middle of income range)
Over $  90000 but not over $ 100000    $  58620, plus 87.00% of excess over $  90000    66.28% effective overall tax rate(computed on tax on middle of income range)
Over $ 100000 but not over $ 150000    $  67320, plus 89.00% of excess over $ 100000    71.66% effective overall tax rate(computed on tax on middle of income range)
Over $ 150000 but not over $ 200000    $ 111820, plus 90.00% of excess over $ 150000    76.75% effective overall tax rate(computed on tax on middle of income range)
Over $ 200000 ........................ $ 156820, plus 91.00% of excess over $ 200000    78.41% <=> 91.00% effective overall tax rate as income goes to infinity
1960 tax rate schedule with figures INFLATION-ADJUSTED to 2013 dollars(for SINGLE taxpayer) ... the multiplier is 7.795810811 based on the average of the last 12 monthly figures through and including April 2013 released in mid-May 2013)
Inflation multiplier was determined from Bureau of Labor Statistics at [CPI Inflation Calculator | Historical Consumer Price Index]
Computation of the actual taxes due and the effective overall tax rate at each level were done by Jeff Sagarin.

Not over $  15592 ................................... 20.00% of the taxable income      20.00% effective overall tax rate
Over $  15592 but not over $  31183    $   3118, plus 22.00% of excess over $  15592    20.67% effective overall tax rate(computed on tax on middle of income range)
Over $  31183 but not over $  46775    $   6548, plus 26.00% of excess over $  31183    22.00% effective overall tax rate(computed on tax on middle of income range)
Over $  46775 but not over $  62366    $  10602, plus 30.00% of excess over $  46775    23.71% effective overall tax rate(computed on tax on middle of income range)
Over $  62366 but not over $  77958    $  15280, plus 34.00% of excess over $  62366    25.56% effective overall tax rate(computed on tax on middle of income range)
Over $  77958 but not over $  93550    $  20581, plus 38.00% of excess over $  77958    27.45% effective overall tax rate(computed on tax on middle of income range)
Over $  93550 but not over $ 109141    $  26506, plus 43.00% of excess over $  93550    29.46% effective overall tax rate(computed on tax on middle of income range)
Over $ 109141 but not over $ 124733    $  33210, plus 47.00% of excess over $ 109141    31.53% effective overall tax rate(computed on tax on middle of income range)
Over $ 124733 but not over $ 140325    $  40538, plus 50.00% of excess over $ 124733    33.53% effective overall tax rate(computed on tax on middle of income range)
Over $ 140325 but not over $ 155916    $  48334, plus 53.00% of excess over $ 140325    35.42% effective overall tax rate(computed on tax on middle of income range)
Over $ 155916 but not over $ 171508    $  56598, plus 56.00% of excess over $ 155916    37.24% effective overall tax rate(computed on tax on middle of income range)
Over $ 171508 but not over $ 202691    $  65329, plus 59.00% of excess over $ 171508    39.83% effective overall tax rate(computed on tax on middle of income range)
Over $ 202691 but not over $ 249466    $  83727, plus 62.00% of excess over $ 202691    43.45% effective overall tax rate(computed on tax on middle of income range)
Over $ 249466 but not over $ 296241    $ 112727, plus 65.00% of excess over $ 249466    46.89% effective overall tax rate(computed on tax on middle of income range)
Over $ 296241 but not over $ 343016    $ 143131, plus 69.00% of excess over $ 296241    49.83% effective overall tax rate(computed on tax on middle of income range)
Over $ 343016 but not over $ 389791    $ 175406, plus 72.00% of excess over $ 343016    52.47% effective overall tax rate(computed on tax on middle of income range)
Over $ 389791 but not over $ 467749    $ 209084, plus 75.00% of excess over $ 389791    55.58% effective overall tax rate(computed on tax on middle of income range)
Over $ 467749 but not over $ 545707    $ 267552, plus 78.00% of excess over $ 467749    58.80% effective overall tax rate(computed on tax on middle of income range)
Over $ 545707 but not over $ 623665    $ 328360, plus 81.00% of excess over $ 545707    61.56% effective overall tax rate(computed on tax on middle of income range)
Over $ 623665 but not over $ 701623    $ 391506, plus 84.00% of excess over $ 623665    64.02% effective overall tax rate(computed on tax on middle of income range)
Over $ 701623 but not over $ 779581    $ 456990, plus 87.00% of excess over $ 701623    66.28% effective overall tax rate(computed on tax on middle of income range)
Over $ 779581 but not over $1169372    $ 524814, plus 89.00% of excess over $ 779581    71.66% effective overall tax rate(computed on tax on middle of income range)
Over $1169372 but not over $1559162    $ 871728, plus 90.00% of excess over $1169372    76.75% effective overall tax rate(computed on tax on middle of income range)
Over $1559162 ........................ $1222539, plus 91.00% of excess over $1559162    78.41% <=> 91.00% effective overall tax rate as income goes to infinity
                                                                              1960     1954                                               using exact decimal values of taxes (not integers)
                                                                              ____     ____
taxable income in 2013 dollars $     10000     tax due in  2013 dollars $     2000     2000     percentage of taxable income= 20.00%    for tax year 1960  percentage of 1954 taxes  100.00%
taxable income in 2013 dollars $     20000     tax due in  2013 dollars $     4088     4057     percentage of taxable income= 20.44%    for tax year 1960  percentage of 1954 taxes  100.77%
taxable income in 2013 dollars $     30000     tax due in  2013 dollars $     6288     6257     percentage of taxable income= 20.96%    for tax year 1960  percentage of 1954 taxes  100.50%
taxable income in 2013 dollars $     40000     tax due in  2013 dollars $     8841     8684     percentage of taxable income= 22.10%    for tax year 1960  percentage of 1954 taxes  101.80%
taxable income in 2013 dollars $     50000     tax due in  2013 dollars $    11570    11284     percentage of taxable income= 23.14%    for tax year 1960  percentage of 1954 taxes  102.53%
taxable income in 2013 dollars $     60000     tax due in  2013 dollars $    14570    14226     percentage of taxable income= 24.28%    for tax year 1960  percentage of 1954 taxes  102.42%
taxable income in 2013 dollars $     70000     tax due in  2013 dollars $    17875    17280     percentage of taxable income= 25.54%    for tax year 1960  percentage of 1954 taxes  103.44%
taxable income in 2013 dollars $     80000     tax due in  2013 dollars $    21357    20680     percentage of taxable income= 26.70%    for tax year 1960  percentage of 1954 taxes  103.27%
taxable income in 2013 dollars $     90000     tax due in  2013 dollars $    25157    24249     percentage of taxable income= 27.95%    for tax year 1960  percentage of 1954 taxes  103.74%
taxable income in 2013 dollars $    100000     tax due in  2013 dollars $    29279    28049     percentage of taxable income= 29.28%    for tax year 1960  percentage of 1954 taxes  104.39%
taxable income in 2013 dollars $    150000     tax due in  2013 dollars $    53462    50981     percentage of taxable income= 35.64%    for tax year 1960  percentage of 1954 taxes  104.87%
taxable income in 2013 dollars $    200000     tax due in  2013 dollars $    82139    78540     percentage of taxable income= 41.07%    for tax year 1960  percentage of 1954 taxes  104.58%
taxable income in 2013 dollars $    250000     tax due in  2013 dollars $   113075   108849     percentage of taxable income= 45.23%    for tax year 1960  percentage of 1954 taxes  103.88%
taxable income in 2013 dollars $    300000     tax due in  2013 dollars $   145725   140614     percentage of taxable income= 48.57%    for tax year 1960  percentage of 1954 taxes  103.63%
taxable income in 2013 dollars $    350000     tax due in  2013 dollars $   180434   174075     percentage of taxable income= 51.55%    for tax year 1960  percentage of 1954 taxes  103.65%
taxable income in 2013 dollars $    400000     tax due in  2013 dollars $   216741   209251     percentage of taxable income= 54.19%    for tax year 1960  percentage of 1954 taxes  103.58%
taxable income in 2013 dollars $    450000     tax due in  2013 dollars $   254241   245884     percentage of taxable income= 56.50%    for tax year 1960  percentage of 1954 taxes  103.40%
taxable income in 2013 dollars $    500000     tax due in  2013 dollars $   292708   283384     percentage of taxable income= 58.54%    for tax year 1960  percentage of 1954 taxes  103.29%
taxable income in 2013 dollars $    600000     tax due in  2013 dollars $   372337   360943     percentage of taxable income= 62.06%    for tax year 1960  percentage of 1954 taxes  103.16%
taxable income in 2013 dollars $    700000     tax due in  2013 dollars $   455627   442341     percentage of taxable income= 65.09%    for tax year 1960  percentage of 1954 taxes  103.00%
taxable income in 2013 dollars $    800000     tax due in  2013 dollars $   542987   527179     percentage of taxable income= 67.87%    for tax year 1960  percentage of 1954 taxes  103.00%
taxable income in 2013 dollars $    900000     tax due in  2013 dollars $   631987   615023     percentage of taxable income= 70.22%    for tax year 1960  percentage of 1954 taxes  102.76%
taxable income in 2013 dollars $   1000000     tax due in  2013 dollars $   720987   704023     percentage of taxable income= 72.10%    for tax year 1960  percentage of 1954 taxes  102.41%

1961 tax rate schedule with ORIGINAL dollar figures(for SINGLE taxpayer)
Historical data for the marginal rates was obtained at the Tax Foundation website at [U.S. Federal Individual Income Tax Rates History, 1913-2011 (Nominal and Inflation-Adjusted Brackets)]
Computation of the actual taxes due and the effective overall tax rate at each level were done by Jeff Sagarin.

Not over $   2000 ................................... 20.00% of the taxable income      20.00% effective overall tax rate
Over $   2000 but not over $   4000    $    400, plus 22.00% of excess over $   2000    20.67% effective overall tax rate(computed on tax on middle of income range)
Over $   4000 but not over $   6000    $    840, plus 26.00% of excess over $   4000    22.00% effective overall tax rate(computed on tax on middle of income range)
Over $   6000 but not over $   8000    $   1360, plus 30.00% of excess over $   6000    23.71% effective overall tax rate(computed on tax on middle of income range)
Over $   8000 but not over $  10000    $   1960, plus 34.00% of excess over $   8000    25.56% effective overall tax rate(computed on tax on middle of income range)
Over $  10000 but not over $  12000    $   2640, plus 38.00% of excess over $  10000    27.45% effective overall tax rate(computed on tax on middle of income range)
Over $  12000 but not over $  14000    $   3400, plus 43.00% of excess over $  12000    29.46% effective overall tax rate(computed on tax on middle of income range)
Over $  14000 but not over $  16000    $   4260, plus 47.00% of excess over $  14000    31.53% effective overall tax rate(computed on tax on middle of income range)
Over $  16000 but not over $  18000    $   5200, plus 50.00% of excess over $  16000    33.53% effective overall tax rate(computed on tax on middle of income range)
Over $  18000 but not over $  20000    $   6200, plus 53.00% of excess over $  18000    35.42% effective overall tax rate(computed on tax on middle of income range)
Over $  20000 but not over $  22000    $   7260, plus 56.00% of excess over $  20000    37.24% effective overall tax rate(computed on tax on middle of income range)
Over $  22000 but not over $  26000    $   8380, plus 59.00% of excess over $  22000    39.83% effective overall tax rate(computed on tax on middle of income range)
Over $  26000 but not over $  32000    $  10740, plus 62.00% of excess over $  26000    43.45% effective overall tax rate(computed on tax on middle of income range)
Over $  32000 but not over $  38000    $  14460, plus 65.00% of excess over $  32000    46.89% effective overall tax rate(computed on tax on middle of income range)
Over $  38000 but not over $  44000    $  18360, plus 69.00% of excess over $  38000    49.83% effective overall tax rate(computed on tax on middle of income range)
Over $  44000 but not over $  50000    $  22500, plus 72.00% of excess over $  44000    52.47% effective overall tax rate(computed on tax on middle of income range)
Over $  50000 but not over $  60000    $  26820, plus 75.00% of excess over $  50000    55.58% effective overall tax rate(computed on tax on middle of income range)
Over $  60000 but not over $  70000    $  34320, plus 78.00% of excess over $  60000    58.80% effective overall tax rate(computed on tax on middle of income range)
Over $  70000 but not over $  80000    $  42120, plus 81.00% of excess over $  70000    61.56% effective overall tax rate(computed on tax on middle of income range)
Over $  80000 but not over $  90000    $  50220, plus 84.00% of excess over $  80000    64.02% effective overall tax rate(computed on tax on middle of income range)
Over $  90000 but not over $ 100000    $  58620, plus 87.00% of excess over $  90000    66.28% effective overall tax rate(computed on tax on middle of income range)
Over $ 100000 but not over $ 150000    $  67320, plus 89.00% of excess over $ 100000    71.66% effective overall tax rate(computed on tax on middle of income range)
Over $ 150000 but not over $ 200000    $ 111820, plus 90.00% of excess over $ 150000    76.75% effective overall tax rate(computed on tax on middle of income range)
Over $ 200000 ........................ $ 156820, plus 91.00% of excess over $ 200000    78.41% <=> 91.00% effective overall tax rate as income goes to infinity
1961 tax rate schedule with figures INFLATION-ADJUSTED to 2013 dollars(for SINGLE taxpayer) ... the multiplier is 7.717591973 based on the average of the last 12 monthly figures through and including April 2013 released in mid-May 2013)
Inflation multiplier was determined from Bureau of Labor Statistics at [CPI Inflation Calculator | Historical Consumer Price Index]
Computation of the actual taxes due and the effective overall tax rate at each level were done by Jeff Sagarin.

Not over $  15435 ................................... 20.00% of the taxable income      20.00% effective overall tax rate
Over $  15435 but not over $  30870    $   3087, plus 22.00% of excess over $  15435    20.67% effective overall tax rate(computed on tax on middle of income range)
Over $  30870 but not over $  46306    $   6483, plus 26.00% of excess over $  30870    22.00% effective overall tax rate(computed on tax on middle of income range)
Over $  46306 but not over $  61741    $  10496, plus 30.00% of excess over $  46306    23.71% effective overall tax rate(computed on tax on middle of income range)
Over $  61741 but not over $  77176    $  15126, plus 34.00% of excess over $  61741    25.56% effective overall tax rate(computed on tax on middle of income range)
Over $  77176 but not over $  92611    $  20374, plus 38.00% of excess over $  77176    27.45% effective overall tax rate(computed on tax on middle of income range)
Over $  92611 but not over $ 108046    $  26240, plus 43.00% of excess over $  92611    29.46% effective overall tax rate(computed on tax on middle of income range)
Over $ 108046 but not over $ 123481    $  32877, plus 47.00% of excess over $ 108046    31.53% effective overall tax rate(computed on tax on middle of income range)
Over $ 123481 but not over $ 138917    $  40131, plus 50.00% of excess over $ 123481    33.53% effective overall tax rate(computed on tax on middle of income range)
Over $ 138917 but not over $ 154352    $  47849, plus 53.00% of excess over $ 138917    35.42% effective overall tax rate(computed on tax on middle of income range)
Over $ 154352 but not over $ 169787    $  56030, plus 56.00% of excess over $ 154352    37.24% effective overall tax rate(computed on tax on middle of income range)
Over $ 169787 but not over $ 200657    $  64673, plus 59.00% of excess over $ 169787    39.83% effective overall tax rate(computed on tax on middle of income range)
Over $ 200657 but not over $ 246963    $  82887, plus 62.00% of excess over $ 200657    43.45% effective overall tax rate(computed on tax on middle of income range)
Over $ 246963 but not over $ 293268    $ 111596, plus 65.00% of excess over $ 246963    46.89% effective overall tax rate(computed on tax on middle of income range)
Over $ 293268 but not over $ 339574    $ 141695, plus 69.00% of excess over $ 293268    49.83% effective overall tax rate(computed on tax on middle of income range)
Over $ 339574 but not over $ 385880    $ 173646, plus 72.00% of excess over $ 339574    52.47% effective overall tax rate(computed on tax on middle of income range)
Over $ 385880 but not over $ 463056    $ 206986, plus 75.00% of excess over $ 385880    55.58% effective overall tax rate(computed on tax on middle of income range)
Over $ 463056 but not over $ 540231    $ 264868, plus 78.00% of excess over $ 463056    58.80% effective overall tax rate(computed on tax on middle of income range)
Over $ 540231 but not over $ 617407    $ 325065, plus 81.00% of excess over $ 540231    61.56% effective overall tax rate(computed on tax on middle of income range)
Over $ 617407 but not over $ 694583    $ 387577, plus 84.00% of excess over $ 617407    64.02% effective overall tax rate(computed on tax on middle of income range)
Over $ 694583 but not over $ 771759    $ 452405, plus 87.00% of excess over $ 694583    66.28% effective overall tax rate(computed on tax on middle of income range)
Over $ 771759 but not over $1157639    $ 519548, plus 89.00% of excess over $ 771759    71.66% effective overall tax rate(computed on tax on middle of income range)
Over $1157639 but not over $1543518    $ 862981, plus 90.00% of excess over $1157639    76.75% effective overall tax rate(computed on tax on middle of income range)
Over $1543518 ........................ $1210273, plus 91.00% of excess over $1543518    78.41% <=> 91.00% effective overall tax rate as income goes to infinity
                                                                              1961     1954                                               using exact decimal values of taxes (not integers)
                                                                              ____     ____
taxable income in 2013 dollars $     10000     tax due in  2013 dollars $     2000     2000     percentage of taxable income= 20.00%    for tax year 1961  percentage of 1954 taxes  100.00%
taxable income in 2013 dollars $     20000     tax due in  2013 dollars $     4091     4057     percentage of taxable income= 20.46%    for tax year 1961  percentage of 1954 taxes  100.85%
taxable income in 2013 dollars $     30000     tax due in  2013 dollars $     6291     6257     percentage of taxable income= 20.97%    for tax year 1961  percentage of 1954 taxes  100.55%
taxable income in 2013 dollars $     40000     tax due in  2013 dollars $     8856     8684     percentage of taxable income= 22.14%    for tax year 1961  percentage of 1954 taxes  101.98%
taxable income in 2013 dollars $     50000     tax due in  2013 dollars $    11604    11284     percentage of taxable income= 23.21%    for tax year 1961  percentage of 1954 taxes  102.84%
taxable income in 2013 dollars $     60000     tax due in  2013 dollars $    14604    14226     percentage of taxable income= 24.34%    for tax year 1961  percentage of 1954 taxes  102.66%
taxable income in 2013 dollars $     70000     tax due in  2013 dollars $    17935    17280     percentage of taxable income= 25.62%    for tax year 1961  percentage of 1954 taxes  103.79%
taxable income in 2013 dollars $     80000     tax due in  2013 dollars $    21448    20680     percentage of taxable income= 26.81%    for tax year 1961  percentage of 1954 taxes  103.71%
taxable income in 2013 dollars $     90000     tax due in  2013 dollars $    25248    24249     percentage of taxable income= 28.05%    for tax year 1961  percentage of 1954 taxes  104.12%
taxable income in 2013 dollars $    100000     tax due in  2013 dollars $    29417    28049     percentage of taxable income= 29.42%    for tax year 1961  percentage of 1954 taxes  104.88%
taxable income in 2013 dollars $    150000     tax due in  2013 dollars $    53723    50981     percentage of taxable income= 35.82%    for tax year 1961  percentage of 1954 taxes  105.38%
taxable income in 2013 dollars $    200000     tax due in  2013 dollars $    82499    78540     percentage of taxable income= 41.25%    for tax year 1961  percentage of 1954 taxes  105.04%
taxable income in 2013 dollars $    250000     tax due in  2013 dollars $   113570   108849     percentage of taxable income= 45.43%    for tax year 1961  percentage of 1954 taxes  104.34%
taxable income in 2013 dollars $    300000     tax due in  2013 dollars $   146340   140614     percentage of taxable income= 48.78%    for tax year 1961  percentage of 1954 taxes  104.07%
taxable income in 2013 dollars $    350000     tax due in  2013 dollars $   181153   174075     percentage of taxable income= 51.76%    for tax year 1961  percentage of 1954 taxes  104.07%
taxable income in 2013 dollars $    400000     tax due in  2013 dollars $   217576   209251     percentage of taxable income= 54.39%    for tax year 1961  percentage of 1954 taxes  103.98%
taxable income in 2013 dollars $    450000     tax due in  2013 dollars $   255076   245884     percentage of taxable income= 56.68%    for tax year 1961  percentage of 1954 taxes  103.74%
taxable income in 2013 dollars $    500000     tax due in  2013 dollars $   293684   283384     percentage of taxable income= 58.74%    for tax year 1961  percentage of 1954 taxes  103.63%
taxable income in 2013 dollars $    600000     tax due in  2013 dollars $   373478   360943     percentage of taxable income= 62.25%    for tax year 1961  percentage of 1954 taxes  103.47%
taxable income in 2013 dollars $    700000     tax due in  2013 dollars $   457118   442341     percentage of taxable income= 65.30%    for tax year 1961  percentage of 1954 taxes  103.34%
taxable income in 2013 dollars $    800000     tax due in  2013 dollars $   544683   527179     percentage of taxable income= 68.09%    for tax year 1961  percentage of 1954 taxes  103.32%
taxable income in 2013 dollars $    900000     tax due in  2013 dollars $   633683   615023     percentage of taxable income= 70.41%    for tax year 1961  percentage of 1954 taxes  103.03%
taxable income in 2013 dollars $   1000000     tax due in  2013 dollars $   722683   704023     percentage of taxable income= 72.27%    for tax year 1961  percentage of 1954 taxes  102.65%

1962 tax rate schedule with ORIGINAL dollar figures(for SINGLE taxpayer)
Historical data for the marginal rates was obtained at the Tax Foundation website at [U.S. Federal Individual Income Tax Rates History, 1913-2011 (Nominal and Inflation-Adjusted Brackets)]
Computation of the actual taxes due and the effective overall tax rate at each level were done by Jeff Sagarin.

Not over $   2000 ................................... 20.00% of the taxable income      20.00% effective overall tax rate
Over $   2000 but not over $   4000    $    400, plus 22.00% of excess over $   2000    20.67% effective overall tax rate(computed on tax on middle of income range)
Over $   4000 but not over $   6000    $    840, plus 26.00% of excess over $   4000    22.00% effective overall tax rate(computed on tax on middle of income range)
Over $   6000 but not over $   8000    $   1360, plus 30.00% of excess over $   6000    23.71% effective overall tax rate(computed on tax on middle of income range)
Over $   8000 but not over $  10000    $   1960, plus 34.00% of excess over $   8000    25.56% effective overall tax rate(computed on tax on middle of income range)
Over $  10000 but not over $  12000    $   2640, plus 38.00% of excess over $  10000    27.45% effective overall tax rate(computed on tax on middle of income range)
Over $  12000 but not over $  14000    $   3400, plus 43.00% of excess over $  12000    29.46% effective overall tax rate(computed on tax on middle of income range)
Over $  14000 but not over $  16000    $   4260, plus 47.00% of excess over $  14000    31.53% effective overall tax rate(computed on tax on middle of income range)
Over $  16000 but not over $  18000    $   5200, plus 50.00% of excess over $  16000    33.53% effective overall tax rate(computed on tax on middle of income range)
Over $  18000 but not over $  20000    $   6200, plus 53.00% of excess over $  18000    35.42% effective overall tax rate(computed on tax on middle of income range)
Over $  20000 but not over $  22000    $   7260, plus 56.00% of excess over $  20000    37.24% effective overall tax rate(computed on tax on middle of income range)
Over $  22000 but not over $  26000    $   8380, plus 59.00% of excess over $  22000    39.83% effective overall tax rate(computed on tax on middle of income range)
Over $  26000 but not over $  32000    $  10740, plus 62.00% of excess over $  26000    43.45% effective overall tax rate(computed on tax on middle of income range)
Over $  32000 but not over $  38000    $  14460, plus 65.00% of excess over $  32000    46.89% effective overall tax rate(computed on tax on middle of income range)
Over $  38000 but not over $  44000    $  18360, plus 69.00% of excess over $  38000    49.83% effective overall tax rate(computed on tax on middle of income range)
Over $  44000 but not over $  50000    $  22500, plus 72.00% of excess over $  44000    52.47% effective overall tax rate(computed on tax on middle of income range)
Over $  50000 but not over $  60000    $  26820, plus 75.00% of excess over $  50000    55.58% effective overall tax rate(computed on tax on middle of income range)
Over $  60000 but not over $  70000    $  34320, plus 78.00% of excess over $  60000    58.80% effective overall tax rate(computed on tax on middle of income range)
Over $  70000 but not over $  80000    $  42120, plus 81.00% of excess over $  70000    61.56% effective overall tax rate(computed on tax on middle of income range)
Over $  80000 but not over $  90000    $  50220, plus 84.00% of excess over $  80000    64.02% effective overall tax rate(computed on tax on middle of income range)
Over $  90000 but not over $ 100000    $  58620, plus 87.00% of excess over $  90000    66.28% effective overall tax rate(computed on tax on middle of income range)
Over $ 100000 but not over $ 150000    $  67320, plus 89.00% of excess over $ 100000    71.66% effective overall tax rate(computed on tax on middle of income range)
Over $ 150000 but not over $ 200000    $ 111820, plus 90.00% of excess over $ 150000    76.75% effective overall tax rate(computed on tax on middle of income range)
Over $ 200000 ........................ $ 156820, plus 91.00% of excess over $ 200000    78.41% <=> 91.00% effective overall tax rate as income goes to infinity
1962 tax rate schedule with figures INFLATION-ADJUSTED to 2013 dollars(for SINGLE taxpayer) ... the multiplier is 7.640927153 based on the average of the last 12 monthly figures through and including April 2013 released in mid-May 2013)
Inflation multiplier was determined from Bureau of Labor Statistics at [CPI Inflation Calculator | Historical Consumer Price Index]
Computation of the actual taxes due and the effective overall tax rate at each level were done by Jeff Sagarin.

Not over $  15282 ................................... 20.00% of the taxable income      20.00% effective overall tax rate
Over $  15282 but not over $  30564    $   3056, plus 22.00% of excess over $  15282    20.67% effective overall tax rate(computed on tax on middle of income range)
Over $  30564 but not over $  45846    $   6418, plus 26.00% of excess over $  30564    22.00% effective overall tax rate(computed on tax on middle of income range)
Over $  45846 but not over $  61127    $  10392, plus 30.00% of excess over $  45846    23.71% effective overall tax rate(computed on tax on middle of income range)
Over $  61127 but not over $  76409    $  14976, plus 34.00% of excess over $  61127    25.56% effective overall tax rate(computed on tax on middle of income range)
Over $  76409 but not over $  91691    $  20172, plus 38.00% of excess over $  76409    27.45% effective overall tax rate(computed on tax on middle of income range)
Over $  91691 but not over $ 106973    $  25979, plus 43.00% of excess over $  91691    29.46% effective overall tax rate(computed on tax on middle of income range)
Over $ 106973 but not over $ 122255    $  32550, plus 47.00% of excess over $ 106973    31.53% effective overall tax rate(computed on tax on middle of income range)
Over $ 122255 but not over $ 137537    $  39733, plus 50.00% of excess over $ 122255    33.53% effective overall tax rate(computed on tax on middle of income range)
Over $ 137537 but not over $ 152819    $  47374, plus 53.00% of excess over $ 137537    35.42% effective overall tax rate(computed on tax on middle of income range)
Over $ 152819 but not over $ 168100    $  55473, plus 56.00% of excess over $ 152819    37.24% effective overall tax rate(computed on tax on middle of income range)
Over $ 168100 but not over $ 198664    $  64031, plus 59.00% of excess over $ 168100    39.83% effective overall tax rate(computed on tax on middle of income range)
Over $ 198664 but not over $ 244510    $  82064, plus 62.00% of excess over $ 198664    43.45% effective overall tax rate(computed on tax on middle of income range)
Over $ 244510 but not over $ 290355    $ 110488, plus 65.00% of excess over $ 244510    46.89% effective overall tax rate(computed on tax on middle of income range)
Over $ 290355 but not over $ 336201    $ 140287, plus 69.00% of excess over $ 290355    49.83% effective overall tax rate(computed on tax on middle of income range)
Over $ 336201 but not over $ 382046    $ 171921, plus 72.00% of excess over $ 336201    52.47% effective overall tax rate(computed on tax on middle of income range)
Over $ 382046 but not over $ 458456    $ 204930, plus 75.00% of excess over $ 382046    55.58% effective overall tax rate(computed on tax on middle of income range)
Over $ 458456 but not over $ 534865    $ 262237, plus 78.00% of excess over $ 458456    58.80% effective overall tax rate(computed on tax on middle of income range)
Over $ 534865 but not over $ 611274    $ 321836, plus 81.00% of excess over $ 534865    61.56% effective overall tax rate(computed on tax on middle of income range)
Over $ 611274 but not over $ 687683    $ 383727, plus 84.00% of excess over $ 611274    64.02% effective overall tax rate(computed on tax on middle of income range)
Over $ 687683 but not over $ 764093    $ 447911, plus 87.00% of excess over $ 687683    66.28% effective overall tax rate(computed on tax on middle of income range)
Over $ 764093 but not over $1146139    $ 514387, plus 89.00% of excess over $ 764093    71.66% effective overall tax rate(computed on tax on middle of income range)
Over $1146139 but not over $1528185    $ 854408, plus 90.00% of excess over $1146139    76.75% effective overall tax rate(computed on tax on middle of income range)
Over $1528185 ........................ $1198250, plus 91.00% of excess over $1528185    78.41% <=> 91.00% effective overall tax rate as income goes to infinity
                                                                              1962     1954                                               using exact decimal values of taxes (not integers)
                                                                              ____     ____
taxable income in 2013 dollars $     10000     tax due in  2013 dollars $     2000     2000     percentage of taxable income= 20.00%    for tax year 1962  percentage of 1954 taxes  100.00%
taxable income in 2013 dollars $     20000     tax due in  2013 dollars $     4094     4057     percentage of taxable income= 20.47%    for tax year 1962  percentage of 1954 taxes  100.92%
taxable income in 2013 dollars $     30000     tax due in  2013 dollars $     6294     6257     percentage of taxable income= 20.98%    for tax year 1962  percentage of 1954 taxes  100.60%
taxable income in 2013 dollars $     40000     tax due in  2013 dollars $     8872     8684     percentage of taxable income= 22.18%    for tax year 1962  percentage of 1954 taxes  102.16%
taxable income in 2013 dollars $     50000     tax due in  2013 dollars $    11638    11284     percentage of taxable income= 23.28%    for tax year 1962  percentage of 1954 taxes  103.13%
taxable income in 2013 dollars $     60000     tax due in  2013 dollars $    14638    14226     percentage of taxable income= 24.40%    for tax year 1962  percentage of 1954 taxes  102.90%
taxable income in 2013 dollars $     70000     tax due in  2013 dollars $    17993    17280     percentage of taxable income= 25.70%    for tax year 1962  percentage of 1954 taxes  104.12%
taxable income in 2013 dollars $     80000     tax due in  2013 dollars $    21537    20680     percentage of taxable income= 26.92%    for tax year 1962  percentage of 1954 taxes  104.14%
taxable income in 2013 dollars $     90000     tax due in  2013 dollars $    25337    24249     percentage of taxable income= 28.15%    for tax year 1962  percentage of 1954 taxes  104.48%
taxable income in 2013 dollars $    100000     tax due in  2013 dollars $    29552    28049     percentage of taxable income= 29.55%    for tax year 1962  percentage of 1954 taxes  105.36%
taxable income in 2013 dollars $    150000     tax due in  2013 dollars $    53979    50981     percentage of taxable income= 35.99%    for tax year 1962  percentage of 1954 taxes  105.88%
taxable income in 2013 dollars $    200000     tax due in  2013 dollars $    82892    78540     percentage of taxable income= 41.45%    for tax year 1962  percentage of 1954 taxes  105.54%
taxable income in 2013 dollars $    250000     tax due in  2013 dollars $   114057   108849     percentage of taxable income= 45.62%    for tax year 1962  percentage of 1954 taxes  104.78%
taxable income in 2013 dollars $    300000     tax due in  2013 dollars $   146942   140614     percentage of taxable income= 48.98%    for tax year 1962  percentage of 1954 taxes  104.50%
taxable income in 2013 dollars $    350000     tax due in  2013 dollars $   181856   174075     percentage of taxable income= 51.96%    for tax year 1962  percentage of 1954 taxes  104.47%
taxable income in 2013 dollars $    400000     tax due in  2013 dollars $   218395   209251     percentage of taxable income= 54.60%    for tax year 1962  percentage of 1954 taxes  104.37%
taxable income in 2013 dollars $    450000     tax due in  2013 dollars $   255895   245884     percentage of taxable income= 56.87%    for tax year 1962  percentage of 1954 taxes  104.07%
taxable income in 2013 dollars $    500000     tax due in  2013 dollars $   294641   283384     percentage of taxable income= 58.93%    for tax year 1962  percentage of 1954 taxes  103.97%
taxable income in 2013 dollars $    600000     tax due in  2013 dollars $   374595   360943     percentage of taxable income= 62.43%    for tax year 1962  percentage of 1954 taxes  103.78%
taxable income in 2013 dollars $    700000     tax due in  2013 dollars $   458627   442341     percentage of taxable income= 65.52%    for tax year 1962  percentage of 1954 taxes  103.68%
taxable income in 2013 dollars $    800000     tax due in  2013 dollars $   546345   527179     percentage of taxable income= 68.29%    for tax year 1962  percentage of 1954 taxes  103.64%
taxable income in 2013 dollars $    900000     tax due in  2013 dollars $   635345   615023     percentage of taxable income= 70.59%    for tax year 1962  percentage of 1954 taxes  103.30%
taxable income in 2013 dollars $   1000000     tax due in  2013 dollars $   724345   704023     percentage of taxable income= 72.43%    for tax year 1962  percentage of 1954 taxes  102.89%

1963 tax rate schedule with ORIGINAL dollar figures(for SINGLE taxpayer)
Historical data for the marginal rates was obtained at the Tax Foundation website at [U.S. Federal Individual Income Tax Rates History, 1913-2011 (Nominal and Inflation-Adjusted Brackets)]
Computation of the actual taxes due and the effective overall tax rate at each level were done by Jeff Sagarin.

Not over $   2000 ................................... 20.00% of the taxable income      20.00% effective overall tax rate
Over $   2000 but not over $   4000    $    400, plus 22.00% of excess over $   2000    20.67% effective overall tax rate(computed on tax on middle of income range)
Over $   4000 but not over $   6000    $    840, plus 26.00% of excess over $   4000    22.00% effective overall tax rate(computed on tax on middle of income range)
Over $   6000 but not over $   8000    $   1360, plus 30.00% of excess over $   6000    23.71% effective overall tax rate(computed on tax on middle of income range)
Over $   8000 but not over $  10000    $   1960, plus 34.00% of excess over $   8000    25.56% effective overall tax rate(computed on tax on middle of income range)
Over $  10000 but not over $  12000    $   2640, plus 38.00% of excess over $  10000    27.45% effective overall tax rate(computed on tax on middle of income range)
Over $  12000 but not over $  14000    $   3400, plus 43.00% of excess over $  12000    29.46% effective overall tax rate(computed on tax on middle of income range)
Over $  14000 but not over $  16000    $   4260, plus 47.00% of excess over $  14000    31.53% effective overall tax rate(computed on tax on middle of income range)
Over $  16000 but not over $  18000    $   5200, plus 50.00% of excess over $  16000    33.53% effective overall tax rate(computed on tax on middle of income range)
Over $  18000 but not over $  20000    $   6200, plus 53.00% of excess over $  18000    35.42% effective overall tax rate(computed on tax on middle of income range)
Over $  20000 but not over $  22000    $   7260, plus 56.00% of excess over $  20000    37.24% effective overall tax rate(computed on tax on middle of income range)
Over $  22000 but not over $  26000    $   8380, plus 59.00% of excess over $  22000    39.83% effective overall tax rate(computed on tax on middle of income range)
Over $  26000 but not over $  32000    $  10740, plus 62.00% of excess over $  26000    43.45% effective overall tax rate(computed on tax on middle of income range)
Over $  32000 but not over $  38000    $  14460, plus 65.00% of excess over $  32000    46.89% effective overall tax rate(computed on tax on middle of income range)
Over $  38000 but not over $  44000    $  18360, plus 69.00% of excess over $  38000    49.83% effective overall tax rate(computed on tax on middle of income range)
Over $  44000 but not over $  50000    $  22500, plus 72.00% of excess over $  44000    52.47% effective overall tax rate(computed on tax on middle of income range)
Over $  50000 but not over $  60000    $  26820, plus 75.00% of excess over $  50000    55.58% effective overall tax rate(computed on tax on middle of income range)
Over $  60000 but not over $  70000    $  34320, plus 78.00% of excess over $  60000    58.80% effective overall tax rate(computed on tax on middle of income range)
Over $  70000 but not over $  80000    $  42120, plus 81.00% of excess over $  70000    61.56% effective overall tax rate(computed on tax on middle of income range)
Over $  80000 but not over $  90000    $  50220, plus 84.00% of excess over $  80000    64.02% effective overall tax rate(computed on tax on middle of income range)
Over $  90000 but not over $ 100000    $  58620, plus 87.00% of excess over $  90000    66.28% effective overall tax rate(computed on tax on middle of income range)
Over $ 100000 but not over $ 150000    $  67320, plus 89.00% of excess over $ 100000    71.66% effective overall tax rate(computed on tax on middle of income range)
Over $ 150000 but not over $ 200000    $ 111820, plus 90.00% of excess over $ 150000    76.75% effective overall tax rate(computed on tax on middle of income range)
Over $ 200000 ........................ $ 156820, plus 91.00% of excess over $ 200000    78.41% <=> 91.00% effective overall tax rate as income goes to infinity
1963 tax rate schedule with figures INFLATION-ADJUSTED to 2013 dollars(for SINGLE taxpayer) ... the multiplier is 7.541045752 based on the average of the last 12 monthly figures through and including April 2013 released in mid-May 2013)
Inflation multiplier was determined from Bureau of Labor Statistics at [CPI Inflation Calculator | Historical Consumer Price Index]
Computation of the actual taxes due and the effective overall tax rate at each level were done by Jeff Sagarin.

Not over $  15082 ................................... 20.00% of the taxable income      20.00% effective overall tax rate
Over $  15082 but not over $  30164    $   3016, plus 22.00% of excess over $  15082    20.67% effective overall tax rate(computed on tax on middle of income range)
Over $  30164 but not over $  45246    $   6334, plus 26.00% of excess over $  30164    22.00% effective overall tax rate(computed on tax on middle of income range)
Over $  45246 but not over $  60328    $  10256, plus 30.00% of excess over $  45246    23.71% effective overall tax rate(computed on tax on middle of income range)
Over $  60328 but not over $  75410    $  14780, plus 34.00% of excess over $  60328    25.56% effective overall tax rate(computed on tax on middle of income range)
Over $  75410 but not over $  90493    $  19908, plus 38.00% of excess over $  75410    27.45% effective overall tax rate(computed on tax on middle of income range)
Over $  90493 but not over $ 105575    $  25640, plus 43.00% of excess over $  90493    29.46% effective overall tax rate(computed on tax on middle of income range)
Over $ 105575 but not over $ 120657    $  32125, plus 47.00% of excess over $ 105575    31.53% effective overall tax rate(computed on tax on middle of income range)
Over $ 120657 but not over $ 135739    $  39213, plus 50.00% of excess over $ 120657    33.53% effective overall tax rate(computed on tax on middle of income range)
Over $ 135739 but not over $ 150821    $  46754, plus 53.00% of excess over $ 135739    35.42% effective overall tax rate(computed on tax on middle of income range)
Over $ 150821 but not over $ 165903    $  54748, plus 56.00% of excess over $ 150821    37.24% effective overall tax rate(computed on tax on middle of income range)
Over $ 165903 but not over $ 196067    $  63194, plus 59.00% of excess over $ 165903    39.83% effective overall tax rate(computed on tax on middle of income range)
Over $ 196067 but not over $ 241313    $  80991, plus 62.00% of excess over $ 196067    43.45% effective overall tax rate(computed on tax on middle of income range)
Over $ 241313 but not over $ 286560    $ 109044, plus 65.00% of excess over $ 241313    46.89% effective overall tax rate(computed on tax on middle of income range)
Over $ 286560 but not over $ 331806    $ 138454, plus 69.00% of excess over $ 286560    49.83% effective overall tax rate(computed on tax on middle of income range)
Over $ 331806 but not over $ 377052    $ 169674, plus 72.00% of excess over $ 331806    52.47% effective overall tax rate(computed on tax on middle of income range)
Over $ 377052 but not over $ 452463    $ 202251, plus 75.00% of excess over $ 377052    55.58% effective overall tax rate(computed on tax on middle of income range)
Over $ 452463 but not over $ 527873    $ 258809, plus 78.00% of excess over $ 452463    58.80% effective overall tax rate(computed on tax on middle of income range)
Over $ 527873 but not over $ 603284    $ 317629, plus 81.00% of excess over $ 527873    61.56% effective overall tax rate(computed on tax on middle of income range)
Over $ 603284 but not over $ 678694    $ 378711, plus 84.00% of excess over $ 603284    64.02% effective overall tax rate(computed on tax on middle of income range)
Over $ 678694 but not over $ 754105    $ 442056, plus 87.00% of excess over $ 678694    66.28% effective overall tax rate(computed on tax on middle of income range)
Over $ 754105 but not over $1131157    $ 507663, plus 89.00% of excess over $ 754105    71.66% effective overall tax rate(computed on tax on middle of income range)
Over $1131157 but not over $1508209    $ 843240, plus 90.00% of excess over $1131157    76.75% effective overall tax rate(computed on tax on middle of income range)
Over $1508209 ........................ $1182587, plus 91.00% of excess over $1508209    78.41% <=> 91.00% effective overall tax rate as income goes to infinity
                                                                              1963     1954                                               using exact decimal values of taxes (not integers)
                                                                              ____     ____
taxable income in 2013 dollars $     10000     tax due in  2013 dollars $     2000     2000     percentage of taxable income= 20.00%    for tax year 1963  percentage of 1954 taxes  100.00%
taxable income in 2013 dollars $     20000     tax due in  2013 dollars $     4098     4057     percentage of taxable income= 20.49%    for tax year 1963  percentage of 1954 taxes  101.02%
taxable income in 2013 dollars $     30000     tax due in  2013 dollars $     6298     6257     percentage of taxable income= 20.99%    for tax year 1963  percentage of 1954 taxes  100.66%
taxable income in 2013 dollars $     40000     tax due in  2013 dollars $     8892     8684     percentage of taxable income= 22.23%    for tax year 1963  percentage of 1954 taxes  102.39%
taxable income in 2013 dollars $     50000     tax due in  2013 dollars $    11682    11284     percentage of taxable income= 23.36%    for tax year 1963  percentage of 1954 taxes  103.52%
taxable income in 2013 dollars $     60000     tax due in  2013 dollars $    14682    14226     percentage of taxable income= 24.47%    for tax year 1963  percentage of 1954 taxes  103.21%
taxable income in 2013 dollars $     70000     tax due in  2013 dollars $    18069    17280     percentage of taxable income= 25.81%    for tax year 1963  percentage of 1954 taxes  104.56%
taxable income in 2013 dollars $     80000     tax due in  2013 dollars $    21652    20680     percentage of taxable income= 27.07%    for tax year 1963  percentage of 1954 taxes  104.70%
taxable income in 2013 dollars $     90000     tax due in  2013 dollars $    25452    24249     percentage of taxable income= 28.28%    for tax year 1963  percentage of 1954 taxes  104.96%
taxable income in 2013 dollars $    100000     tax due in  2013 dollars $    29728    28049     percentage of taxable income= 29.73%    for tax year 1963  percentage of 1954 taxes  105.98%
taxable income in 2013 dollars $    150000     tax due in  2013 dollars $    54313    50981     percentage of taxable income= 36.21%    for tax year 1963  percentage of 1954 taxes  106.54%
taxable income in 2013 dollars $    200000     tax due in  2013 dollars $    83429    78540     percentage of taxable income= 41.71%    for tax year 1963  percentage of 1954 taxes  106.23%
taxable income in 2013 dollars $    250000     tax due in  2013 dollars $   114690   108849     percentage of taxable income= 45.88%    for tax year 1963  percentage of 1954 taxes  105.37%
taxable income in 2013 dollars $    300000     tax due in  2013 dollars $   147727   140614     percentage of taxable income= 49.24%    for tax year 1963  percentage of 1954 taxes  105.06%
taxable income in 2013 dollars $    350000     tax due in  2013 dollars $   182773   174075     percentage of taxable income= 52.22%    for tax year 1963  percentage of 1954 taxes  105.00%
taxable income in 2013 dollars $    400000     tax due in  2013 dollars $   219462   209251     percentage of taxable income= 54.87%    for tax year 1963  percentage of 1954 taxes  104.88%
taxable income in 2013 dollars $    450000     tax due in  2013 dollars $   256962   245884     percentage of taxable income= 57.10%    for tax year 1963  percentage of 1954 taxes  104.51%
taxable income in 2013 dollars $    500000     tax due in  2013 dollars $   295888   283384     percentage of taxable income= 59.18%    for tax year 1963  percentage of 1954 taxes  104.41%
taxable income in 2013 dollars $    600000     tax due in  2013 dollars $   376052   360943     percentage of taxable income= 62.68%    for tax year 1963  percentage of 1954 taxes  104.19%
taxable income in 2013 dollars $    700000     tax due in  2013 dollars $   460592   442341     percentage of taxable income= 65.80%    for tax year 1963  percentage of 1954 taxes  104.13%
taxable income in 2013 dollars $    800000     tax due in  2013 dollars $   548510   527179     percentage of taxable income= 68.56%    for tax year 1963  percentage of 1954 taxes  104.05%
taxable income in 2013 dollars $    900000     tax due in  2013 dollars $   637510   615023     percentage of taxable income= 70.83%    for tax year 1963  percentage of 1954 taxes  103.66%
taxable income in 2013 dollars $   1000000     tax due in  2013 dollars $   726510   704023     percentage of taxable income= 72.65%    for tax year 1963  percentage of 1954 taxes  103.19%

1964 tax rate schedule with ORIGINAL dollar figures(for SINGLE taxpayer)
Historical data for the marginal rates was obtained at the Tax Foundation website at [U.S. Federal Individual Income Tax Rates History, 1913-2011 (Nominal and Inflation-Adjusted Brackets)]
Computation of the actual taxes due and the effective overall tax rate at each level were done by Jeff Sagarin.

Not over $    500 ................................... 16.00% of the taxable income      16.00% effective overall tax rate
Over $    500 but not over $   1000    $     80, plus 16.50% of excess over $    500    16.17% effective overall tax rate(computed on tax on middle of income range)
Over $   1000 but not over $   1500    $    163, plus 17.50% of excess over $   1000    16.50% effective overall tax rate(computed on tax on middle of income range)
Over $   1500 but not over $   2000    $    250, plus 18.00% of excess over $   1500    16.86% effective overall tax rate(computed on tax on middle of income range)
Over $   2000 but not over $   4000    $    340, plus 20.00% of excess over $   2000    18.00% effective overall tax rate(computed on tax on middle of income range)
Over $   4000 but not over $   6000    $    740, plus 23.50% of excess over $   4000    19.50% effective overall tax rate(computed on tax on middle of income range)
Over $   6000 but not over $   8000    $   1210, plus 27.00% of excess over $   6000    21.14% effective overall tax rate(computed on tax on middle of income range)
Over $   8000 but not over $  10000    $   1750, plus 30.50% of excess over $   8000    22.83% effective overall tax rate(computed on tax on middle of income range)
Over $  10000 but not over $  12000    $   2360, plus 34.00% of excess over $  10000    24.55% effective overall tax rate(computed on tax on middle of income range)
Over $  12000 but not over $  14000    $   3040, plus 37.50% of excess over $  12000    26.27% effective overall tax rate(computed on tax on middle of income range)
Over $  14000 but not over $  16000    $   3790, plus 41.00% of excess over $  14000    28.00% effective overall tax rate(computed on tax on middle of income range)
Over $  16000 but not over $  18000    $   4610, plus 44.50% of excess over $  16000    29.74% effective overall tax rate(computed on tax on middle of income range)
Over $  18000 but not over $  20000    $   5500, plus 47.50% of excess over $  18000    31.45% effective overall tax rate(computed on tax on middle of income range)
Over $  20000 but not over $  22000    $   6450, plus 50.50% of excess over $  20000    33.12% effective overall tax rate(computed on tax on middle of income range)
Over $  22000 but not over $  26000    $   7460, plus 53.50% of excess over $  22000    35.54% effective overall tax rate(computed on tax on middle of income range)
Over $  26000 but not over $  32000    $   9600, plus 56.00% of excess over $  26000    38.90% effective overall tax rate(computed on tax on middle of income range)
Over $  32000 but not over $  38000    $  12960, plus 58.50% of excess over $  32000    42.04% effective overall tax rate(computed on tax on middle of income range)
Over $  38000 but not over $  44000    $  16470, plus 61.00% of excess over $  38000    44.63% effective overall tax rate(computed on tax on middle of income range)
Over $  44000 but not over $  50000    $  20130, plus 63.50% of excess over $  44000    46.88% effective overall tax rate(computed on tax on middle of income range)
Over $  50000 but not over $  60000    $  23940, plus 66.00% of excess over $  50000    49.53% effective overall tax rate(computed on tax on middle of income range)
Over $  60000 but not over $  70000    $  30540, plus 68.50% of excess over $  60000    52.25% effective overall tax rate(computed on tax on middle of income range)
Over $  70000 but not over $  80000    $  37390, plus 71.00% of excess over $  70000    54.59% effective overall tax rate(computed on tax on middle of income range)
Over $  80000 but not over $  90000    $  44490, plus 73.50% of excess over $  80000    56.66% effective overall tax rate(computed on tax on middle of income range)
Over $  90000 but not over $ 100000    $  51840, plus 75.00% of excess over $  90000    58.52% effective overall tax rate(computed on tax on middle of income range)
Over $ 100000 but not over $ 200000    $  59340, plus 76.50% of excess over $ 100000    65.06% effective overall tax rate(computed on tax on middle of income range)
Over $ 200000 ........................ $ 135840, plus 77.00% of excess over $ 200000    67.92% <=> 77.00% effective overall tax rate as income goes to infinity
1964 tax rate schedule with figures INFLATION-ADJUSTED to 2013 dollars(for SINGLE taxpayer) ... the multiplier is 7.443741935 based on the average of the last 12 monthly figures through and including April 2013 released in mid-May 2013)
Inflation multiplier was determined from Bureau of Labor Statistics at [CPI Inflation Calculator | Historical Consumer Price Index]
Computation of the actual taxes due and the effective overall tax rate at each level were done by Jeff Sagarin.

Not over $   3722 ................................... 16.00% of the taxable income      16.00% effective overall tax rate
Over $   3722 but not over $   7444    $    595, plus 16.50% of excess over $   3722    16.17% effective overall tax rate(computed on tax on middle of income range)
Over $   7444 but not over $  11166    $   1210, plus 17.50% of excess over $   7444    16.50% effective overall tax rate(computed on tax on middle of income range)
Over $  11166 but not over $  14887    $   1861, plus 18.00% of excess over $  11166    16.86% effective overall tax rate(computed on tax on middle of income range)
Over $  14887 but not over $  29775    $   2531, plus 20.00% of excess over $  14887    18.00% effective overall tax rate(computed on tax on middle of income range)
Over $  29775 but not over $  44662    $   5508, plus 23.50% of excess over $  29775    19.50% effective overall tax rate(computed on tax on middle of income range)
Over $  44662 but not over $  59550    $   9007, plus 27.00% of excess over $  44662    21.14% effective overall tax rate(computed on tax on middle of income range)
Over $  59550 but not over $  74437    $  13027, plus 30.50% of excess over $  59550    22.83% effective overall tax rate(computed on tax on middle of income range)
Over $  74437 but not over $  89325    $  17567, plus 34.00% of excess over $  74437    24.55% effective overall tax rate(computed on tax on middle of income range)
Over $  89325 but not over $ 104212    $  22629, plus 37.50% of excess over $  89325    26.27% effective overall tax rate(computed on tax on middle of income range)
Over $ 104212 but not over $ 119100    $  28212, plus 41.00% of excess over $ 104212    28.00% effective overall tax rate(computed on tax on middle of income range)
Over $ 119100 but not over $ 133987    $  34316, plus 44.50% of excess over $ 119100    29.74% effective overall tax rate(computed on tax on middle of income range)
Over $ 133987 but not over $ 148875    $  40941, plus 47.50% of excess over $ 133987    31.45% effective overall tax rate(computed on tax on middle of income range)
Over $ 148875 but not over $ 163762    $  48012, plus 50.50% of excess over $ 148875    33.12% effective overall tax rate(computed on tax on middle of income range)
Over $ 163762 but not over $ 193537    $  55530, plus 53.50% of excess over $ 163762    35.54% effective overall tax rate(computed on tax on middle of income range)
Over $ 193537 but not over $ 238200    $  71460, plus 56.00% of excess over $ 193537    38.90% effective overall tax rate(computed on tax on middle of income range)
Over $ 238200 but not over $ 282862    $  96471, plus 58.50% of excess over $ 238200    42.04% effective overall tax rate(computed on tax on middle of income range)
Over $ 282862 but not over $ 327525    $ 122598, plus 61.00% of excess over $ 282862    44.63% effective overall tax rate(computed on tax on middle of income range)
Over $ 327525 but not over $ 372187    $ 149843, plus 63.50% of excess over $ 327525    46.88% effective overall tax rate(computed on tax on middle of income range)
Over $ 372187 but not over $ 446625    $ 178203, plus 66.00% of excess over $ 372187    49.53% effective overall tax rate(computed on tax on middle of income range)
Over $ 446625 but not over $ 521062    $ 227332, plus 68.50% of excess over $ 446625    52.25% effective overall tax rate(computed on tax on middle of income range)
Over $ 521062 but not over $ 595499    $ 278322, plus 71.00% of excess over $ 521062    54.59% effective overall tax rate(computed on tax on middle of income range)
Over $ 595499 but not over $ 669937    $ 331172, plus 73.50% of excess over $ 595499    56.66% effective overall tax rate(computed on tax on middle of income range)
Over $ 669937 but not over $ 744374    $ 385884, plus 75.00% of excess over $ 669937    58.52% effective overall tax rate(computed on tax on middle of income range)
Over $ 744374 but not over $1488748    $ 441712, plus 76.50% of excess over $ 744374    65.06% effective overall tax rate(computed on tax on middle of income range)
Over $1488748 ........................ $1011158, plus 77.00% of excess over $1488748    67.92% <=> 77.00% effective overall tax rate as income goes to infinity
                                                                              1964     1954                                               using exact decimal values of taxes (not integers)
                                                                              ____     ____
taxable income in 2013 dollars $     10000     tax due in  2013 dollars $     1657     2000     percentage of taxable income= 16.57%    for tax year 1964  percentage of 1954 taxes  82.85%
taxable income in 2013 dollars $     20000     tax due in  2013 dollars $     3553     4057     percentage of taxable income= 17.77%    for tax year 1964  percentage of 1954 taxes  87.59%
taxable income in 2013 dollars $     30000     tax due in  2013 dollars $     5561     6257     percentage of taxable income= 18.54%    for tax year 1964  percentage of 1954 taxes  88.88%
taxable income in 2013 dollars $     40000     tax due in  2013 dollars $     7911     8684     percentage of taxable income= 19.78%    for tax year 1964  percentage of 1954 taxes  91.10%
taxable income in 2013 dollars $     50000     tax due in  2013 dollars $    10448    11284     percentage of taxable income= 20.90%    for tax year 1964  percentage of 1954 taxes  92.59%
taxable income in 2013 dollars $     60000     tax due in  2013 dollars $    13164    14226     percentage of taxable income= 21.94%    for tax year 1964  percentage of 1954 taxes  92.54%
taxable income in 2013 dollars $     70000     tax due in  2013 dollars $    16214    17280     percentage of taxable income= 23.16%    for tax year 1964  percentage of 1954 taxes  93.83%
taxable income in 2013 dollars $     80000     tax due in  2013 dollars $    19459    20680     percentage of taxable income= 24.32%    for tax year 1964  percentage of 1954 taxes  94.09%
taxable income in 2013 dollars $     90000     tax due in  2013 dollars $    22882    24249     percentage of taxable income= 25.42%    for tax year 1964  percentage of 1954 taxes  94.36%
taxable income in 2013 dollars $    100000     tax due in  2013 dollars $    26632    28049     percentage of taxable income= 26.63%    for tax year 1964  percentage of 1954 taxes  94.95%
taxable income in 2013 dollars $    150000     tax due in  2013 dollars $    48580    50981     percentage of taxable income= 32.39%    for tax year 1964  percentage of 1954 taxes  95.29%
taxable income in 2013 dollars $    200000     tax due in  2013 dollars $    75079    78540     percentage of taxable income= 37.54%    for tax year 1964  percentage of 1954 taxes  95.59%
taxable income in 2013 dollars $    250000     tax due in  2013 dollars $   103374   108849     percentage of taxable income= 41.35%    for tax year 1964  percentage of 1954 taxes  94.97%
taxable income in 2013 dollars $    300000     tax due in  2013 dollars $   133052   140614     percentage of taxable income= 44.35%    for tax year 1964  percentage of 1954 taxes  94.62%
taxable income in 2013 dollars $    350000     tax due in  2013 dollars $   164114   174075     percentage of taxable income= 46.89%    for tax year 1964  percentage of 1954 taxes  94.28%
taxable income in 2013 dollars $    400000     tax due in  2013 dollars $   196560   209251     percentage of taxable income= 49.14%    for tax year 1964  percentage of 1954 taxes  93.93%
taxable income in 2013 dollars $    450000     tax due in  2013 dollars $   229644   245884     percentage of taxable income= 51.03%    for tax year 1964  percentage of 1954 taxes  93.40%
taxable income in 2013 dollars $    500000     tax due in  2013 dollars $   263894   283384     percentage of taxable income= 52.78%    for tax year 1964  percentage of 1954 taxes  93.12%
taxable income in 2013 dollars $    600000     tax due in  2013 dollars $   334480   360943     percentage of taxable income= 55.75%    for tax year 1964  percentage of 1954 taxes  92.67%
taxable income in 2013 dollars $    700000     tax due in  2013 dollars $   408431   442341     percentage of taxable income= 58.35%    for tax year 1964  percentage of 1954 taxes  92.33%
taxable income in 2013 dollars $    800000     tax due in  2013 dollars $   484265   527179     percentage of taxable income= 60.53%    for tax year 1964  percentage of 1954 taxes  91.86%
taxable income in 2013 dollars $    900000     tax due in  2013 dollars $   560765   615023     percentage of taxable income= 62.31%    for tax year 1964  percentage of 1954 taxes  91.18%
taxable income in 2013 dollars $   1000000     tax due in  2013 dollars $   637265   704023     percentage of taxable income= 63.73%    for tax year 1964  percentage of 1954 taxes  90.52%

1965 tax rate schedule with ORIGINAL dollar figures(for SINGLE taxpayer)
Historical data for the marginal rates was obtained at the Tax Foundation website at [U.S. Federal Individual Income Tax Rates History, 1913-2011 (Nominal and Inflation-Adjusted Brackets)]
Computation of the actual taxes due and the effective overall tax rate at each level were done by Jeff Sagarin.

Not over $    500 ................................... 14.00% of the taxable income      14.00% effective overall tax rate
Over $    500 but not over $   1000    $     70, plus 15.00% of excess over $    500    14.33% effective overall tax rate(computed on tax on middle of income range)
Over $   1000 but not over $   1500    $    145, plus 16.00% of excess over $   1000    14.80% effective overall tax rate(computed on tax on middle of income range)
Over $   1500 but not over $   2000    $    225, plus 17.00% of excess over $   1500    15.29% effective overall tax rate(computed on tax on middle of income range)
Over $   2000 but not over $   4000    $    310, plus 19.00% of excess over $   2000    16.67% effective overall tax rate(computed on tax on middle of income range)
Over $   4000 but not over $   6000    $    690, plus 22.00% of excess over $   4000    18.20% effective overall tax rate(computed on tax on middle of income range)
Over $   6000 but not over $   8000    $   1130, plus 25.00% of excess over $   6000    19.71% effective overall tax rate(computed on tax on middle of income range)
Over $   8000 but not over $  10000    $   1630, plus 28.00% of excess over $   8000    21.22% effective overall tax rate(computed on tax on middle of income range)
Over $  10000 but not over $  12000    $   2190, plus 32.00% of excess over $  10000    22.82% effective overall tax rate(computed on tax on middle of income range)
Over $  12000 but not over $  14000    $   2830, plus 36.00% of excess over $  12000    24.54% effective overall tax rate(computed on tax on middle of income range)
Over $  14000 but not over $  16000    $   3550, plus 39.00% of excess over $  14000    26.27% effective overall tax rate(computed on tax on middle of income range)
Over $  16000 but not over $  18000    $   4330, plus 42.00% of excess over $  16000    27.94% effective overall tax rate(computed on tax on middle of income range)
Over $  18000 but not over $  20000    $   5170, plus 45.00% of excess over $  18000    29.58% effective overall tax rate(computed on tax on middle of income range)
Over $  20000 but not over $  22000    $   6070, plus 48.00% of excess over $  20000    31.19% effective overall tax rate(computed on tax on middle of income range)
Over $  22000 but not over $  26000    $   7030, plus 50.00% of excess over $  22000    33.46% effective overall tax rate(computed on tax on middle of income range)
Over $  26000 but not over $  32000    $   9030, plus 53.00% of excess over $  26000    36.62% effective overall tax rate(computed on tax on middle of income range)
Over $  32000 but not over $  38000    $  12210, plus 55.00% of excess over $  32000    39.60% effective overall tax rate(computed on tax on middle of income range)
Over $  38000 but not over $  44000    $  15510, plus 58.00% of excess over $  38000    42.07% effective overall tax rate(computed on tax on middle of income range)
Over $  44000 but not over $  50000    $  18990, plus 60.00% of excess over $  44000    44.23% effective overall tax rate(computed on tax on middle of income range)
Over $  50000 but not over $  60000    $  22590, plus 62.00% of excess over $  50000    46.71% effective overall tax rate(computed on tax on middle of income range)
Over $  60000 but not over $  70000    $  28790, plus 64.00% of excess over $  60000    49.22% effective overall tax rate(computed on tax on middle of income range)
Over $  70000 but not over $  80000    $  35190, plus 66.00% of excess over $  70000    51.32% effective overall tax rate(computed on tax on middle of income range)
Over $  80000 but not over $  90000    $  41790, plus 68.00% of excess over $  80000    53.16% effective overall tax rate(computed on tax on middle of income range)
Over $  90000 but not over $ 100000    $  48590, plus 69.00% of excess over $  90000    54.78% effective overall tax rate(computed on tax on middle of income range)
Over $ 100000 ........................ $  55490, plus 70.00% of excess over $ 100000    55.49% <=> 70.00% effective overall tax rate as income goes to infinity
1965 tax rate schedule with figures INFLATION-ADJUSTED to 2013 dollars(for SINGLE taxpayer) ... the multiplier is 7.325587302 based on the average of the last 12 monthly figures through and including April 2013 released in mid-May 2013)
Inflation multiplier was determined from Bureau of Labor Statistics at [CPI Inflation Calculator | Historical Consumer Price Index]
Computation of the actual taxes due and the effective overall tax rate at each level were done by Jeff Sagarin.

Not over $   3663 ................................... 14.00% of the taxable income      14.00% effective overall tax rate
Over $   3663 but not over $   7326    $    513, plus 15.00% of excess over $   3663    14.33% effective overall tax rate(computed on tax on middle of income range)
Over $   7326 but not over $  10988    $   1062, plus 16.00% of excess over $   7326    14.80% effective overall tax rate(computed on tax on middle of income range)
Over $  10988 but not over $  14651    $   1648, plus 17.00% of excess over $  10988    15.29% effective overall tax rate(computed on tax on middle of income range)
Over $  14651 but not over $  29302    $   2271, plus 19.00% of excess over $  14651    16.67% effective overall tax rate(computed on tax on middle of income range)
Over $  29302 but not over $  43954    $   5055, plus 22.00% of excess over $  29302    18.20% effective overall tax rate(computed on tax on middle of income range)
Over $  43954 but not over $  58605    $   8278, plus 25.00% of excess over $  43954    19.71% effective overall tax rate(computed on tax on middle of income range)
Over $  58605 but not over $  73256    $  11941, plus 28.00% of excess over $  58605    21.22% effective overall tax rate(computed on tax on middle of income range)
Over $  73256 but not over $  87907    $  16043, plus 32.00% of excess over $  73256    22.82% effective overall tax rate(computed on tax on middle of income range)
Over $  87907 but not over $ 102558    $  20731, plus 36.00% of excess over $  87907    24.54% effective overall tax rate(computed on tax on middle of income range)
Over $ 102558 but not over $ 117209    $  26006, plus 39.00% of excess over $ 102558    26.27% effective overall tax rate(computed on tax on middle of income range)
Over $ 117209 but not over $ 131861    $  31720, plus 42.00% of excess over $ 117209    27.94% effective overall tax rate(computed on tax on middle of income range)
Over $ 131861 but not over $ 146512    $  37873, plus 45.00% of excess over $ 131861    29.58% effective overall tax rate(computed on tax on middle of income range)
Over $ 146512 but not over $ 161163    $  44466, plus 48.00% of excess over $ 146512    31.19% effective overall tax rate(computed on tax on middle of income range)
Over $ 161163 but not over $ 190465    $  51499, plus 50.00% of excess over $ 161163    33.46% effective overall tax rate(computed on tax on middle of income range)
Over $ 190465 but not over $ 234419    $  66150, plus 53.00% of excess over $ 190465    36.62% effective overall tax rate(computed on tax on middle of income range)
Over $ 234419 but not over $ 278372    $  89445, plus 55.00% of excess over $ 234419    39.60% effective overall tax rate(computed on tax on middle of income range)
Over $ 278372 but not over $ 322326    $ 113620, plus 58.00% of excess over $ 278372    42.07% effective overall tax rate(computed on tax on middle of income range)
Over $ 322326 but not over $ 366279    $ 139113, plus 60.00% of excess over $ 322326    44.23% effective overall tax rate(computed on tax on middle of income range)
Over $ 366279 but not over $ 439535    $ 165485, plus 62.00% of excess over $ 366279    46.71% effective overall tax rate(computed on tax on middle of income range)
Over $ 439535 but not over $ 512791    $ 210904, plus 64.00% of excess over $ 439535    49.22% effective overall tax rate(computed on tax on middle of income range)
Over $ 512791 but not over $ 586047    $ 257787, plus 66.00% of excess over $ 512791    51.32% effective overall tax rate(computed on tax on middle of income range)
Over $ 586047 but not over $ 659303    $ 306136, plus 68.00% of excess over $ 586047    53.16% effective overall tax rate(computed on tax on middle of income range)
Over $ 659303 but not over $ 732559    $ 355950, plus 69.00% of excess over $ 659303    54.78% effective overall tax rate(computed on tax on middle of income range)
Over $ 732559 ........................ $ 406497, plus 70.00% of excess over $ 732559    55.49% <=> 70.00% effective overall tax rate as income goes to infinity
                                                                              1965     1954                                               using exact decimal values of taxes (not integers)
                                                                              ____     ____
taxable income in 2013 dollars $     10000     tax due in  2013 dollars $     1490     2000     percentage of taxable income= 14.90%    for tax year 1965  percentage of 1954 taxes  74.51%
taxable income in 2013 dollars $     20000     tax due in  2013 dollars $     3287     4057     percentage of taxable income= 16.44%    for tax year 1965  percentage of 1954 taxes  81.03%
taxable income in 2013 dollars $     30000     tax due in  2013 dollars $     5208     6257     percentage of taxable income= 17.36%    for tax year 1965  percentage of 1954 taxes  83.24%
taxable income in 2013 dollars $     40000     tax due in  2013 dollars $     7408     8684     percentage of taxable income= 18.52%    for tax year 1965  percentage of 1954 taxes  85.30%
taxable income in 2013 dollars $     50000     tax due in  2013 dollars $     9790    11284     percentage of taxable income= 19.58%    for tax year 1965  percentage of 1954 taxes  86.75%
taxable income in 2013 dollars $     60000     tax due in  2013 dollars $    12331    14226     percentage of taxable income= 20.55%    for tax year 1965  percentage of 1954 taxes  86.68%
taxable income in 2013 dollars $     70000     tax due in  2013 dollars $    15131    17280     percentage of taxable income= 21.62%    for tax year 1965  percentage of 1954 taxes  87.56%
taxable income in 2013 dollars $     80000     tax due in  2013 dollars $    18201    20680     percentage of taxable income= 22.75%    for tax year 1965  percentage of 1954 taxes  88.01%
taxable income in 2013 dollars $     90000     tax due in  2013 dollars $    21485    24249     percentage of taxable income= 23.87%    for tax year 1965  percentage of 1954 taxes  88.60%
taxable income in 2013 dollars $    100000     tax due in  2013 dollars $    25085    28049     percentage of taxable income= 25.08%    for tax year 1965  percentage of 1954 taxes  89.43%
taxable income in 2013 dollars $    150000     tax due in  2013 dollars $    46141    50981     percentage of taxable income= 30.76%    for tax year 1965  percentage of 1954 taxes  90.51%
taxable income in 2013 dollars $    200000     tax due in  2013 dollars $    71203    78540     percentage of taxable income= 35.60%    for tax year 1965  percentage of 1954 taxes  90.66%
taxable income in 2013 dollars $    250000     tax due in  2013 dollars $    98015   108849     percentage of taxable income= 39.21%    for tax year 1965  percentage of 1954 taxes  90.05%
taxable income in 2013 dollars $    300000     tax due in  2013 dollars $   126164   140614     percentage of taxable income= 42.05%    for tax year 1965  percentage of 1954 taxes  89.72%
taxable income in 2013 dollars $    350000     tax due in  2013 dollars $   155717   174075     percentage of taxable income= 44.49%    for tax year 1965  percentage of 1954 taxes  89.45%
taxable income in 2013 dollars $    400000     tax due in  2013 dollars $   186392   209251     percentage of taxable income= 46.60%    for tax year 1965  percentage of 1954 taxes  89.08%
taxable income in 2013 dollars $    450000     tax due in  2013 dollars $   217601   245884     percentage of taxable income= 48.36%    for tax year 1965  percentage of 1954 taxes  88.50%
taxable income in 2013 dollars $    500000     tax due in  2013 dollars $   249601   283384     percentage of taxable income= 49.92%    for tax year 1965  percentage of 1954 taxes  88.08%
taxable income in 2013 dollars $    600000     tax due in  2013 dollars $   315624   360943     percentage of taxable income= 52.60%    for tax year 1965  percentage of 1954 taxes  87.44%
taxable income in 2013 dollars $    700000     tax due in  2013 dollars $   384031   442341     percentage of taxable income= 54.86%    for tax year 1965  percentage of 1954 taxes  86.82%
taxable income in 2013 dollars $    800000     tax due in  2013 dollars $   453706   527179     percentage of taxable income= 56.71%    for tax year 1965  percentage of 1954 taxes  86.06%
taxable income in 2013 dollars $    900000     tax due in  2013 dollars $   523706   615023     percentage of taxable income= 58.19%    for tax year 1965  percentage of 1954 taxes  85.15%
taxable income in 2013 dollars $   1000000     tax due in  2013 dollars $   593706   704023     percentage of taxable income= 59.37%    for tax year 1965  percentage of 1954 taxes  84.33%

1966 tax rate schedule with ORIGINAL dollar figures(for SINGLE taxpayer)
Historical data for the marginal rates was obtained at the Tax Foundation website at [U.S. Federal Individual Income Tax Rates History, 1913-2011 (Nominal and Inflation-Adjusted Brackets)]
Computation of the actual taxes due and the effective overall tax rate at each level were done by Jeff Sagarin.

Not over $    500 ................................... 14.00% of the taxable income      14.00% effective overall tax rate
Over $    500 but not over $   1000    $     70, plus 15.00% of excess over $    500    14.33% effective overall tax rate(computed on tax on middle of income range)
Over $   1000 but not over $   1500    $    145, plus 16.00% of excess over $   1000    14.80% effective overall tax rate(computed on tax on middle of income range)
Over $   1500 but not over $   2000    $    225, plus 17.00% of excess over $   1500    15.29% effective overall tax rate(computed on tax on middle of income range)
Over $   2000 but not over $   4000    $    310, plus 19.00% of excess over $   2000    16.67% effective overall tax rate(computed on tax on middle of income range)
Over $   4000 but not over $   6000    $    690, plus 22.00% of excess over $   4000    18.20% effective overall tax rate(computed on tax on middle of income range)
Over $   6000 but not over $   8000    $   1130, plus 25.00% of excess over $   6000    19.71% effective overall tax rate(computed on tax on middle of income range)
Over $   8000 but not over $  10000    $   1630, plus 28.00% of excess over $   8000    21.22% effective overall tax rate(computed on tax on middle of income range)
Over $  10000 but not over $  12000    $   2190, plus 32.00% of excess over $  10000    22.82% effective overall tax rate(computed on tax on middle of income range)
Over $  12000 but not over $  14000    $   2830, plus 36.00% of excess over $  12000    24.54% effective overall tax rate(computed on tax on middle of income range)
Over $  14000 but not over $  16000    $   3550, plus 39.00% of excess over $  14000    26.27% effective overall tax rate(computed on tax on middle of income range)
Over $  16000 but not over $  18000    $   4330, plus 42.00% of excess over $  16000    27.94% effective overall tax rate(computed on tax on middle of income range)
Over $  18000 but not over $  20000    $   5170, plus 45.00% of excess over $  18000    29.58% effective overall tax rate(computed on tax on middle of income range)
Over $  20000 but not over $  22000    $   6070, plus 48.00% of excess over $  20000    31.19% effective overall tax rate(computed on tax on middle of income range)
Over $  22000 but not over $  26000    $   7030, plus 50.00% of excess over $  22000    33.46% effective overall tax rate(computed on tax on middle of income range)
Over $  26000 but not over $  32000    $   9030, plus 53.00% of excess over $  26000    36.62% effective overall tax rate(computed on tax on middle of income range)
Over $  32000 but not over $  38000    $  12210, plus 55.00% of excess over $  32000    39.60% effective overall tax rate(computed on tax on middle of income range)
Over $  38000 but not over $  44000    $  15510, plus 58.00% of excess over $  38000    42.07% effective overall tax rate(computed on tax on middle of income range)
Over $  44000 but not over $  50000    $  18990, plus 60.00% of excess over $  44000    44.23% effective overall tax rate(computed on tax on middle of income range)
Over $  50000 but not over $  60000    $  22590, plus 62.00% of excess over $  50000    46.71% effective overall tax rate(computed on tax on middle of income range)
Over $  60000 but not over $  70000    $  28790, plus 64.00% of excess over $  60000    49.22% effective overall tax rate(computed on tax on middle of income range)
Over $  70000 but not over $  80000    $  35190, plus 66.00% of excess over $  70000    51.32% effective overall tax rate(computed on tax on middle of income range)
Over $  80000 but not over $  90000    $  41790, plus 68.00% of excess over $  80000    53.16% effective overall tax rate(computed on tax on middle of income range)
Over $  90000 but not over $ 100000    $  48590, plus 69.00% of excess over $  90000    54.78% effective overall tax rate(computed on tax on middle of income range)
Over $ 100000 ........................ $  55490, plus 70.00% of excess over $ 100000    55.49% <=> 70.00% effective overall tax rate as income goes to infinity
1966 tax rate schedule with figures INFLATION-ADJUSTED to 2013 dollars(for SINGLE taxpayer) ... the multiplier is 7.122098765 based on the average of the last 12 monthly figures through and including April 2013 released in mid-May 2013)
Inflation multiplier was determined from Bureau of Labor Statistics at [CPI Inflation Calculator | Historical Consumer Price Index]
Computation of the actual taxes due and the effective overall tax rate at each level were done by Jeff Sagarin.

Not over $   3561 ................................... 14.00% of the taxable income      14.00% effective overall tax rate
Over $   3561 but not over $   7122    $    499, plus 15.00% of excess over $   3561    14.33% effective overall tax rate(computed on tax on middle of income range)
Over $   7122 but not over $  10683    $   1033, plus 16.00% of excess over $   7122    14.80% effective overall tax rate(computed on tax on middle of income range)
Over $  10683 but not over $  14244    $   1602, plus 17.00% of excess over $  10683    15.29% effective overall tax rate(computed on tax on middle of income range)
Over $  14244 but not over $  28488    $   2208, plus 19.00% of excess over $  14244    16.67% effective overall tax rate(computed on tax on middle of income range)
Over $  28488 but not over $  42733    $   4914, plus 22.00% of excess over $  28488    18.20% effective overall tax rate(computed on tax on middle of income range)
Over $  42733 but not over $  56977    $   8048, plus 25.00% of excess over $  42733    19.71% effective overall tax rate(computed on tax on middle of income range)
Over $  56977 but not over $  71221    $  11609, plus 28.00% of excess over $  56977    21.22% effective overall tax rate(computed on tax on middle of income range)
Over $  71221 but not over $  85465    $  15597, plus 32.00% of excess over $  71221    22.82% effective overall tax rate(computed on tax on middle of income range)
Over $  85465 but not over $  99709    $  20156, plus 36.00% of excess over $  85465    24.54% effective overall tax rate(computed on tax on middle of income range)
Over $  99709 but not over $ 113954    $  25283, plus 39.00% of excess over $  99709    26.27% effective overall tax rate(computed on tax on middle of income range)
Over $ 113954 but not over $ 128198    $  30839, plus 42.00% of excess over $ 113954    27.94% effective overall tax rate(computed on tax on middle of income range)
Over $ 128198 but not over $ 142442    $  36821, plus 45.00% of excess over $ 128198    29.58% effective overall tax rate(computed on tax on middle of income range)
Over $ 142442 but not over $ 156686    $  43231, plus 48.00% of excess over $ 142442    31.19% effective overall tax rate(computed on tax on middle of income range)
Over $ 156686 but not over $ 185175    $  50068, plus 50.00% of excess over $ 156686    33.46% effective overall tax rate(computed on tax on middle of income range)
Over $ 185175 but not over $ 227907    $  64313, plus 53.00% of excess over $ 185175    36.62% effective overall tax rate(computed on tax on middle of income range)
Over $ 227907 but not over $ 270640    $  86961, plus 55.00% of excess over $ 227907    39.60% effective overall tax rate(computed on tax on middle of income range)
Over $ 270640 but not over $ 313372    $ 110464, plus 58.00% of excess over $ 270640    42.07% effective overall tax rate(computed on tax on middle of income range)
Over $ 313372 but not over $ 356105    $ 135249, plus 60.00% of excess over $ 313372    44.23% effective overall tax rate(computed on tax on middle of income range)
Over $ 356105 but not over $ 427326    $ 160888, plus 62.00% of excess over $ 356105    46.71% effective overall tax rate(computed on tax on middle of income range)
Over $ 427326 but not over $ 498547    $ 205045, plus 64.00% of excess over $ 427326    49.22% effective overall tax rate(computed on tax on middle of income range)
Over $ 498547 but not over $ 569768    $ 250627, plus 66.00% of excess over $ 498547    51.32% effective overall tax rate(computed on tax on middle of income range)
Over $ 569768 but not over $ 640989    $ 297633, plus 68.00% of excess over $ 569768    53.16% effective overall tax rate(computed on tax on middle of income range)
Over $ 640989 but not over $ 712210    $ 346063, plus 69.00% of excess over $ 640989    54.78% effective overall tax rate(computed on tax on middle of income range)
Over $ 712210 ........................ $ 395205, plus 70.00% of excess over $ 712210    55.49% <=> 70.00% effective overall tax rate as income goes to infinity
                                                                              1966     1954                                               using exact decimal values of taxes (not integers)
                                                                              ____     ____
taxable income in 2013 dollars $     10000     tax due in  2013 dollars $     1493     2000     percentage of taxable income= 14.93%    for tax year 1966  percentage of 1954 taxes  74.66%
taxable income in 2013 dollars $     20000     tax due in  2013 dollars $     3301     4057     percentage of taxable income= 16.51%    for tax year 1966  percentage of 1954 taxes  81.38%
taxable income in 2013 dollars $     30000     tax due in  2013 dollars $     5247     6257     percentage of taxable income= 17.49%    for tax year 1966  percentage of 1954 taxes  83.86%
taxable income in 2013 dollars $     40000     tax due in  2013 dollars $     7447     8684     percentage of taxable income= 18.62%    for tax year 1966  percentage of 1954 taxes  85.75%
taxable income in 2013 dollars $     50000     tax due in  2013 dollars $     9865    11284     percentage of taxable income= 19.73%    for tax year 1966  percentage of 1954 taxes  87.42%
taxable income in 2013 dollars $     60000     tax due in  2013 dollars $    12456    14226     percentage of taxable income= 20.76%    for tax year 1966  percentage of 1954 taxes  87.56%
taxable income in 2013 dollars $     70000     tax due in  2013 dollars $    15256    17280     percentage of taxable income= 21.79%    for tax year 1966  percentage of 1954 taxes  88.28%
taxable income in 2013 dollars $     80000     tax due in  2013 dollars $    18407    20680     percentage of taxable income= 23.01%    for tax year 1966  percentage of 1954 taxes  89.01%
taxable income in 2013 dollars $     90000     tax due in  2013 dollars $    21788    24249     percentage of taxable income= 24.21%    for tax year 1966  percentage of 1954 taxes  89.85%
taxable income in 2013 dollars $    100000     tax due in  2013 dollars $    25397    28049     percentage of taxable income= 25.40%    for tax year 1966  percentage of 1954 taxes  90.54%
taxable income in 2013 dollars $    150000     tax due in  2013 dollars $    46859    50981     percentage of taxable income= 31.24%    for tax year 1966  percentage of 1954 taxes  91.91%
taxable income in 2013 dollars $    200000     tax due in  2013 dollars $    72170    78540     percentage of taxable income= 36.09%    for tax year 1966  percentage of 1954 taxes  91.89%
taxable income in 2013 dollars $    250000     tax due in  2013 dollars $    99112   108849     percentage of taxable income= 39.64%    for tax year 1966  percentage of 1954 taxes  91.05%
taxable income in 2013 dollars $    300000     tax due in  2013 dollars $   127493   140614     percentage of taxable income= 42.50%    for tax year 1966  percentage of 1954 taxes  90.67%
taxable income in 2013 dollars $    350000     tax due in  2013 dollars $   157225   174075     percentage of taxable income= 44.92%    for tax year 1966  percentage of 1954 taxes  90.32%
taxable income in 2013 dollars $    400000     tax due in  2013 dollars $   188103   209251     percentage of taxable income= 47.03%    for tax year 1966  percentage of 1954 taxes  89.89%
taxable income in 2013 dollars $    450000     tax due in  2013 dollars $   219557   245884     percentage of taxable income= 48.79%    for tax year 1966  percentage of 1954 taxes  89.29%
taxable income in 2013 dollars $    500000     tax due in  2013 dollars $   251586   283384     percentage of taxable income= 50.32%    for tax year 1966  percentage of 1954 taxes  88.78%
taxable income in 2013 dollars $    600000     tax due in  2013 dollars $   318190   360943     percentage of taxable income= 53.03%    for tax year 1966  percentage of 1954 taxes  88.16%
taxable income in 2013 dollars $    700000     tax due in  2013 dollars $   386780   442341     percentage of taxable income= 55.25%    for tax year 1966  percentage of 1954 taxes  87.44%
taxable income in 2013 dollars $    800000     tax due in  2013 dollars $   456658   527179     percentage of taxable income= 57.08%    for tax year 1966  percentage of 1954 taxes  86.62%
taxable income in 2013 dollars $    900000     tax due in  2013 dollars $   526658   615023     percentage of taxable income= 58.52%    for tax year 1966  percentage of 1954 taxes  85.63%
taxable income in 2013 dollars $   1000000     tax due in  2013 dollars $   596658   704023     percentage of taxable income= 59.67%    for tax year 1966  percentage of 1954 taxes  84.75%

1967 tax rate schedule with ORIGINAL dollar figures(for SINGLE taxpayer)
Historical data for the marginal rates was obtained at the Tax Foundation website at [U.S. Federal Individual Income Tax Rates History, 1913-2011 (Nominal and Inflation-Adjusted Brackets)]
Computation of the actual taxes due and the effective overall tax rate at each level were done by Jeff Sagarin.

Not over $    500 ................................... 14.00% of the taxable income      14.00% effective overall tax rate
Over $    500 but not over $   1000    $     70, plus 15.00% of excess over $    500    14.33% effective overall tax rate(computed on tax on middle of income range)
Over $   1000 but not over $   1500    $    145, plus 16.00% of excess over $   1000    14.80% effective overall tax rate(computed on tax on middle of income range)
Over $   1500 but not over $   2000    $    225, plus 17.00% of excess over $   1500    15.29% effective overall tax rate(computed on tax on middle of income range)
Over $   2000 but not over $   4000    $    310, plus 19.00% of excess over $   2000    16.67% effective overall tax rate(computed on tax on middle of income range)
Over $   4000 but not over $   6000    $    690, plus 22.00% of excess over $   4000    18.20% effective overall tax rate(computed on tax on middle of income range)
Over $   6000 but not over $   8000    $   1130, plus 25.00% of excess over $   6000    19.71% effective overall tax rate(computed on tax on middle of income range)
Over $   8000 but not over $  10000    $   1630, plus 28.00% of excess over $   8000    21.22% effective overall tax rate(computed on tax on middle of income range)
Over $  10000 but not over $  12000    $   2190, plus 32.00% of excess over $  10000    22.82% effective overall tax rate(computed on tax on middle of income range)
Over $  12000 but not over $  14000    $   2830, plus 36.00% of excess over $  12000    24.54% effective overall tax rate(computed on tax on middle of income range)
Over $  14000 but not over $  16000    $   3550, plus 39.00% of excess over $  14000    26.27% effective overall tax rate(computed on tax on middle of income range)
Over $  16000 but not over $  18000    $   4330, plus 42.00% of excess over $  16000    27.94% effective overall tax rate(computed on tax on middle of income range)
Over $  18000 but not over $  20000    $   5170, plus 45.00% of excess over $  18000    29.58% effective overall tax rate(computed on tax on middle of income range)
Over $  20000 but not over $  22000    $   6070, plus 48.00% of excess over $  20000    31.19% effective overall tax rate(computed on tax on middle of income range)
Over $  22000 but not over $  26000    $   7030, plus 50.00% of excess over $  22000    33.46% effective overall tax rate(computed on tax on middle of income range)
Over $  26000 but not over $  32000    $   9030, plus 53.00% of excess over $  26000    36.62% effective overall tax rate(computed on tax on middle of income range)
Over $  32000 but not over $  38000    $  12210, plus 55.00% of excess over $  32000    39.60% effective overall tax rate(computed on tax on middle of income range)
Over $  38000 but not over $  44000    $  15510, plus 58.00% of excess over $  38000    42.07% effective overall tax rate(computed on tax on middle of income range)
Over $  44000 but not over $  50000    $  18990, plus 60.00% of excess over $  44000    44.23% effective overall tax rate(computed on tax on middle of income range)
Over $  50000 but not over $  60000    $  22590, plus 62.00% of excess over $  50000    46.71% effective overall tax rate(computed on tax on middle of income range)
Over $  60000 but not over $  70000    $  28790, plus 64.00% of excess over $  60000    49.22% effective overall tax rate(computed on tax on middle of income range)
Over $  70000 but not over $  80000    $  35190, plus 66.00% of excess over $  70000    51.32% effective overall tax rate(computed on tax on middle of income range)
Over $  80000 but not over $  90000    $  41790, plus 68.00% of excess over $  80000    53.16% effective overall tax rate(computed on tax on middle of income range)
Over $  90000 but not over $ 100000    $  48590, plus 69.00% of excess over $  90000    54.78% effective overall tax rate(computed on tax on middle of income range)
Over $ 100000 ........................ $  55490, plus 70.00% of excess over $ 100000    55.49% <=> 70.00% effective overall tax rate as income goes to infinity
1967 tax rate schedule with figures INFLATION-ADJUSTED to 2013 dollars(for SINGLE taxpayer) ... the multiplier is 6.908862275 based on the average of the last 12 monthly figures through and including April 2013 released in mid-May 2013)
Inflation multiplier was determined from Bureau of Labor Statistics at [CPI Inflation Calculator | Historical Consumer Price Index]
Computation of the actual taxes due and the effective overall tax rate at each level were done by Jeff Sagarin.

Not over $   3454 ................................... 14.00% of the taxable income      14.00% effective overall tax rate
Over $   3454 but not over $   6909    $    484, plus 15.00% of excess over $   3454    14.33% effective overall tax rate(computed on tax on middle of income range)
Over $   6909 but not over $  10363    $   1002, plus 16.00% of excess over $   6909    14.80% effective overall tax rate(computed on tax on middle of income range)
Over $  10363 but not over $  13818    $   1554, plus 17.00% of excess over $  10363    15.29% effective overall tax rate(computed on tax on middle of income range)
Over $  13818 but not over $  27635    $   2142, plus 19.00% of excess over $  13818    16.67% effective overall tax rate(computed on tax on middle of income range)
Over $  27635 but not over $  41453    $   4767, plus 22.00% of excess over $  27635    18.20% effective overall tax rate(computed on tax on middle of income range)
Over $  41453 but not over $  55271    $   7807, plus 25.00% of excess over $  41453    19.71% effective overall tax rate(computed on tax on middle of income range)
Over $  55271 but not over $  69089    $  11261, plus 28.00% of excess over $  55271    21.22% effective overall tax rate(computed on tax on middle of income range)
Over $  69089 but not over $  82906    $  15130, plus 32.00% of excess over $  69089    22.82% effective overall tax rate(computed on tax on middle of income range)
Over $  82906 but not over $  96724    $  19552, plus 36.00% of excess over $  82906    24.54% effective overall tax rate(computed on tax on middle of income range)
Over $  96724 but not over $ 110542    $  24526, plus 39.00% of excess over $  96724    26.27% effective overall tax rate(computed on tax on middle of income range)
Over $ 110542 but not over $ 124360    $  29915, plus 42.00% of excess over $ 110542    27.94% effective overall tax rate(computed on tax on middle of income range)
Over $ 124360 but not over $ 138177    $  35719, plus 45.00% of excess over $ 124360    29.58% effective overall tax rate(computed on tax on middle of income range)
Over $ 138177 but not over $ 151995    $  41937, plus 48.00% of excess over $ 138177    31.19% effective overall tax rate(computed on tax on middle of income range)
Over $ 151995 but not over $ 179630    $  48569, plus 50.00% of excess over $ 151995    33.46% effective overall tax rate(computed on tax on middle of income range)
Over $ 179630 but not over $ 221084    $  62387, plus 53.00% of excess over $ 179630    36.62% effective overall tax rate(computed on tax on middle of income range)
Over $ 221084 but not over $ 262537    $  84357, plus 55.00% of excess over $ 221084    39.60% effective overall tax rate(computed on tax on middle of income range)
Over $ 262537 but not over $ 303990    $ 107156, plus 58.00% of excess over $ 262537    42.07% effective overall tax rate(computed on tax on middle of income range)
Over $ 303990 but not over $ 345443    $ 131199, plus 60.00% of excess over $ 303990    44.23% effective overall tax rate(computed on tax on middle of income range)
Over $ 345443 but not over $ 414532    $ 156071, plus 62.00% of excess over $ 345443    46.71% effective overall tax rate(computed on tax on middle of income range)
Over $ 414532 but not over $ 483620    $ 198906, plus 64.00% of excess over $ 414532    49.22% effective overall tax rate(computed on tax on middle of income range)
Over $ 483620 but not over $ 552709    $ 243123, plus 66.00% of excess over $ 483620    51.32% effective overall tax rate(computed on tax on middle of income range)
Over $ 552709 but not over $ 621798    $ 288721, plus 68.00% of excess over $ 552709    53.16% effective overall tax rate(computed on tax on middle of income range)
Over $ 621798 but not over $ 690886    $ 335702, plus 69.00% of excess over $ 621798    54.78% effective overall tax rate(computed on tax on middle of income range)
Over $ 690886 ........................ $ 383373, plus 70.00% of excess over $ 690886    55.49% <=> 70.00% effective overall tax rate as income goes to infinity
                                                                              1967     1954                                               using exact decimal values of taxes (not integers)
                                                                              ____     ____
taxable income in 2013 dollars $     10000     tax due in  2013 dollars $     1496     2000     percentage of taxable income= 14.96%    for tax year 1967  percentage of 1954 taxes  74.82%
taxable income in 2013 dollars $     20000     tax due in  2013 dollars $     3316     4057     percentage of taxable income= 16.58%    for tax year 1967  percentage of 1954 taxes  81.75%
taxable income in 2013 dollars $     30000     tax due in  2013 dollars $     5287     6257     percentage of taxable income= 17.62%    for tax year 1967  percentage of 1954 taxes  84.50%
taxable income in 2013 dollars $     40000     tax due in  2013 dollars $     7487     8684     percentage of taxable income= 18.72%    for tax year 1967  percentage of 1954 taxes  86.22%
taxable income in 2013 dollars $     50000     tax due in  2013 dollars $     9944    11284     percentage of taxable income= 19.89%    for tax year 1967  percentage of 1954 taxes  88.12%
taxable income in 2013 dollars $     60000     tax due in  2013 dollars $    12586    14226     percentage of taxable income= 20.98%    for tax year 1967  percentage of 1954 taxes  88.47%
taxable income in 2013 dollars $     70000     tax due in  2013 dollars $    15422    17280     percentage of taxable income= 22.03%    for tax year 1967  percentage of 1954 taxes  89.25%
taxable income in 2013 dollars $     80000     tax due in  2013 dollars $    18622    20680     percentage of taxable income= 23.28%    for tax year 1967  percentage of 1954 taxes  90.05%
taxable income in 2013 dollars $     90000     tax due in  2013 dollars $    22106    24249     percentage of taxable income= 24.56%    for tax year 1967  percentage of 1954 taxes  91.16%
taxable income in 2013 dollars $    100000     tax due in  2013 dollars $    25804    28049     percentage of taxable income= 25.80%    for tax year 1967  percentage of 1954 taxes  92.00%
taxable income in 2013 dollars $    150000     tax due in  2013 dollars $    47612    50981     percentage of taxable income= 31.74%    for tax year 1967  percentage of 1954 taxes  93.39%
taxable income in 2013 dollars $    200000     tax due in  2013 dollars $    73183    78540     percentage of taxable income= 36.59%    for tax year 1967  percentage of 1954 taxes  93.18%
taxable income in 2013 dollars $    250000     tax due in  2013 dollars $   100261   108849     percentage of taxable income= 40.10%    for tax year 1967  percentage of 1954 taxes  92.11%
taxable income in 2013 dollars $    300000     tax due in  2013 dollars $   128885   140614     percentage of taxable income= 42.96%    for tax year 1967  percentage of 1954 taxes  91.66%
taxable income in 2013 dollars $    350000     tax due in  2013 dollars $   158896   174075     percentage of taxable income= 45.40%    for tax year 1967  percentage of 1954 taxes  91.28%
taxable income in 2013 dollars $    400000     tax due in  2013 dollars $   189896   209251     percentage of taxable income= 47.47%    for tax year 1967  percentage of 1954 taxes  90.75%
taxable income in 2013 dollars $    450000     tax due in  2013 dollars $   221606   245884     percentage of taxable income= 49.25%    for tax year 1967  percentage of 1954 taxes  90.13%
taxable income in 2013 dollars $    500000     tax due in  2013 dollars $   253933   283384     percentage of taxable income= 50.79%    for tax year 1967  percentage of 1954 taxes  89.61%
taxable income in 2013 dollars $    600000     tax due in  2013 dollars $   320879   360943     percentage of taxable income= 53.48%    for tax year 1967  percentage of 1954 taxes  88.90%
taxable income in 2013 dollars $    700000     tax due in  2013 dollars $   389752   442341     percentage of taxable income= 55.68%    for tax year 1967  percentage of 1954 taxes  88.11%
taxable income in 2013 dollars $    800000     tax due in  2013 dollars $   459752   527179     percentage of taxable income= 57.47%    for tax year 1967  percentage of 1954 taxes  87.21%
taxable income in 2013 dollars $    900000     tax due in  2013 dollars $   529752   615023     percentage of taxable income= 58.86%    for tax year 1967  percentage of 1954 taxes  86.14%
taxable income in 2013 dollars $   1000000     tax due in  2013 dollars $   599752   704023     percentage of taxable income= 59.98%    for tax year 1967  percentage of 1954 taxes  85.19%

1968 tax rate schedule with ORIGINAL dollar figures(for SINGLE taxpayer)
Historical data for the marginal rates was obtained at the Tax Foundation website at [U.S. Federal Individual Income Tax Rates History, 1913-2011 (Nominal and Inflation-Adjusted Brackets)]
Computation of the actual taxes due and the effective overall tax rate at each level were done by Jeff Sagarin.

Not over $    500 ................................... 14.00% of the taxable income      14.00% effective overall tax rate
Over $    500 but not over $   1000    $     70, plus 15.00% of excess over $    500    14.33% effective overall tax rate(computed on tax on middle of income range)
Over $   1000 but not over $   1500    $    145, plus 16.00% of excess over $   1000    14.80% effective overall tax rate(computed on tax on middle of income range)
Over $   1500 but not over $   2000    $    225, plus 17.00% of excess over $   1500    15.29% effective overall tax rate(computed on tax on middle of income range)
Over $   2000 but not over $   4000    $    310, plus 19.00% of excess over $   2000    16.67% effective overall tax rate(computed on tax on middle of income range)
Over $   4000 but not over $   6000    $    690, plus 22.00% of excess over $   4000    18.20% effective overall tax rate(computed on tax on middle of income range)
Over $   6000 but not over $   8000    $   1130, plus 25.00% of excess over $   6000    19.71% effective overall tax rate(computed on tax on middle of income range)
Over $   8000 but not over $  10000    $   1630, plus 28.00% of excess over $   8000    21.22% effective overall tax rate(computed on tax on middle of income range)
Over $  10000 but not over $  12000    $   2190, plus 32.00% of excess over $  10000    22.82% effective overall tax rate(computed on tax on middle of income range)
Over $  12000 but not over $  14000    $   2830, plus 36.00% of excess over $  12000    24.54% effective overall tax rate(computed on tax on middle of income range)
Over $  14000 but not over $  16000    $   3550, plus 39.00% of excess over $  14000    26.27% effective overall tax rate(computed on tax on middle of income range)
Over $  16000 but not over $  18000    $   4330, plus 42.00% of excess over $  16000    27.94% effective overall tax rate(computed on tax on middle of income range)
Over $  18000 but not over $  20000    $   5170, plus 45.00% of excess over $  18000    29.58% effective overall tax rate(computed on tax on middle of income range)
Over $  20000 but not over $  22000    $   6070, plus 48.00% of excess over $  20000    31.19% effective overall tax rate(computed on tax on middle of income range)
Over $  22000 but not over $  26000    $   7030, plus 50.00% of excess over $  22000    33.46% effective overall tax rate(computed on tax on middle of income range)
Over $  26000 but not over $  32000    $   9030, plus 53.00% of excess over $  26000    36.62% effective overall tax rate(computed on tax on middle of income range)
Over $  32000 but not over $  38000    $  12210, plus 55.00% of excess over $  32000    39.60% effective overall tax rate(computed on tax on middle of income range)
Over $  38000 but not over $  44000    $  15510, plus 58.00% of excess over $  38000    42.07% effective overall tax rate(computed on tax on middle of income range)
Over $  44000 but not over $  50000    $  18990, plus 60.00% of excess over $  44000    44.23% effective overall tax rate(computed on tax on middle of income range)
Over $  50000 but not over $  60000    $  22590, plus 62.00% of excess over $  50000    46.71% effective overall tax rate(computed on tax on middle of income range)
Over $  60000 but not over $  70000    $  28790, plus 64.00% of excess over $  60000    49.22% effective overall tax rate(computed on tax on middle of income range)
Over $  70000 but not over $  80000    $  35190, plus 66.00% of excess over $  70000    51.32% effective overall tax rate(computed on tax on middle of income range)
Over $  80000 but not over $  90000    $  41790, plus 68.00% of excess over $  80000    53.16% effective overall tax rate(computed on tax on middle of income range)
Over $  90000 but not over $ 100000    $  48590, plus 69.00% of excess over $  90000    54.78% effective overall tax rate(computed on tax on middle of income range)
Over $ 100000 ........................ $  55490, plus 70.00% of excess over $ 100000    55.49% <=> 70.00% effective overall tax rate as income goes to infinity
1968 tax rate schedule with figures INFLATION-ADJUSTED to 2013 dollars(for SINGLE taxpayer) ... the multiplier is 6.630919540 based on the average of the last 12 monthly figures through and including April 2013 released in mid-May 2013)
Inflation multiplier was determined from Bureau of Labor Statistics at [CPI Inflation Calculator | Historical Consumer Price Index]
Computation of the actual taxes due and the effective overall tax rate at each level were done by Jeff Sagarin.

Not over $   3315 ................................... 14.00% of the taxable income      14.00% effective overall tax rate
Over $   3315 but not over $   6631    $    464, plus 15.00% of excess over $   3315    14.33% effective overall tax rate(computed on tax on middle of income range)
Over $   6631 but not over $   9946    $    961, plus 16.00% of excess over $   6631    14.80% effective overall tax rate(computed on tax on middle of income range)
Over $   9946 but not over $  13262    $   1492, plus 17.00% of excess over $   9946    15.29% effective overall tax rate(computed on tax on middle of income range)
Over $  13262 but not over $  26524    $   2056, plus 19.00% of excess over $  13262    16.67% effective overall tax rate(computed on tax on middle of income range)
Over $  26524 but not over $  39786    $   4575, plus 22.00% of excess over $  26524    18.20% effective overall tax rate(computed on tax on middle of income range)
Over $  39786 but not over $  53047    $   7493, plus 25.00% of excess over $  39786    19.71% effective overall tax rate(computed on tax on middle of income range)
Over $  53047 but not over $  66309    $  10808, plus 28.00% of excess over $  53047    21.22% effective overall tax rate(computed on tax on middle of income range)
Over $  66309 but not over $  79571    $  14522, plus 32.00% of excess over $  66309    22.82% effective overall tax rate(computed on tax on middle of income range)
Over $  79571 but not over $  92833    $  18766, plus 36.00% of excess over $  79571    24.54% effective overall tax rate(computed on tax on middle of income range)
Over $  92833 but not over $ 106095    $  23540, plus 39.00% of excess over $  92833    26.27% effective overall tax rate(computed on tax on middle of income range)
Over $ 106095 but not over $ 119357    $  28712, plus 42.00% of excess over $ 106095    27.94% effective overall tax rate(computed on tax on middle of income range)
Over $ 119357 but not over $ 132618    $  34282, plus 45.00% of excess over $ 119357    29.58% effective overall tax rate(computed on tax on middle of income range)
Over $ 132618 but not over $ 145880    $  40250, plus 48.00% of excess over $ 132618    31.19% effective overall tax rate(computed on tax on middle of income range)
Over $ 145880 but not over $ 172404    $  46615, plus 50.00% of excess over $ 145880    33.46% effective overall tax rate(computed on tax on middle of income range)
Over $ 172404 but not over $ 212189    $  59877, plus 53.00% of excess over $ 172404    36.62% effective overall tax rate(computed on tax on middle of income range)
Over $ 212189 but not over $ 251975    $  80964, plus 55.00% of excess over $ 212189    39.60% effective overall tax rate(computed on tax on middle of income range)
Over $ 251975 but not over $ 291760    $ 102846, plus 58.00% of excess over $ 251975    42.07% effective overall tax rate(computed on tax on middle of income range)
Over $ 291760 but not over $ 331546    $ 125921, plus 60.00% of excess over $ 291760    44.23% effective overall tax rate(computed on tax on middle of income range)
Over $ 331546 but not over $ 397855    $ 149792, plus 62.00% of excess over $ 331546    46.71% effective overall tax rate(computed on tax on middle of income range)
Over $ 397855 but not over $ 464164    $ 190904, plus 64.00% of excess over $ 397855    49.22% effective overall tax rate(computed on tax on middle of income range)
Over $ 464164 but not over $ 530474    $ 233342, plus 66.00% of excess over $ 464164    51.32% effective overall tax rate(computed on tax on middle of income range)
Over $ 530474 but not over $ 596783    $ 277106, plus 68.00% of excess over $ 530474    53.16% effective overall tax rate(computed on tax on middle of income range)
Over $ 596783 but not over $ 663092    $ 322196, plus 69.00% of excess over $ 596783    54.78% effective overall tax rate(computed on tax on middle of income range)
Over $ 663092 ........................ $ 367950, plus 70.00% of excess over $ 663092    55.49% <=> 70.00% effective overall tax rate as income goes to infinity
                                                                              1968     1954                                               using exact decimal values of taxes (not integers)
                                                                              ____     ____
taxable income in 2013 dollars $     10000     tax due in  2013 dollars $     1501     2000     percentage of taxable income= 15.01%    for tax year 1968  percentage of 1954 taxes  75.05%
taxable income in 2013 dollars $     20000     tax due in  2013 dollars $     3336     4057     percentage of taxable income= 16.68%    for tax year 1968  percentage of 1954 taxes  82.23%
taxable income in 2013 dollars $     30000     tax due in  2013 dollars $     5340     6257     percentage of taxable income= 17.80%    for tax year 1968  percentage of 1954 taxes  85.35%
taxable income in 2013 dollars $     40000     tax due in  2013 dollars $     7547     8684     percentage of taxable income= 18.87%    for tax year 1968  percentage of 1954 taxes  86.90%
taxable income in 2013 dollars $     50000     tax due in  2013 dollars $    10047    11284     percentage of taxable income= 20.09%    for tax year 1968  percentage of 1954 taxes  89.03%
taxable income in 2013 dollars $     60000     tax due in  2013 dollars $    12755    14226     percentage of taxable income= 21.26%    for tax year 1968  percentage of 1954 taxes  89.66%
taxable income in 2013 dollars $     70000     tax due in  2013 dollars $    15703    17280     percentage of taxable income= 22.43%    for tax year 1968  percentage of 1954 taxes  90.87%
taxable income in 2013 dollars $     80000     tax due in  2013 dollars $    18920    20680     percentage of taxable income= 23.65%    for tax year 1968  percentage of 1954 taxes  91.49%
taxable income in 2013 dollars $     90000     tax due in  2013 dollars $    22520    24249     percentage of taxable income= 25.02%    for tax year 1968  percentage of 1954 taxes  92.87%
taxable income in 2013 dollars $    100000     tax due in  2013 dollars $    26335    28049     percentage of taxable income= 26.33%    for tax year 1968  percentage of 1954 taxes  93.89%
taxable income in 2013 dollars $    150000     tax due in  2013 dollars $    48675    50981     percentage of taxable income= 32.45%    for tax year 1968  percentage of 1954 taxes  95.48%
taxable income in 2013 dollars $    200000     tax due in  2013 dollars $    74503    78540     percentage of taxable income= 37.25%    for tax year 1968  percentage of 1954 taxes  94.86%
taxable income in 2013 dollars $    250000     tax due in  2013 dollars $   101759   108849     percentage of taxable income= 40.70%    for tax year 1968  percentage of 1954 taxes  93.49%
taxable income in 2013 dollars $    300000     tax due in  2013 dollars $   130865   140614     percentage of taxable income= 43.62%    for tax year 1968  percentage of 1954 taxes  93.07%
taxable income in 2013 dollars $    350000     tax due in  2013 dollars $   161234   174075     percentage of taxable income= 46.07%    for tax year 1968  percentage of 1954 taxes  92.62%
taxable income in 2013 dollars $    400000     tax due in  2013 dollars $   192277   209251     percentage of taxable income= 48.07%    for tax year 1968  percentage of 1954 taxes  91.89%
taxable income in 2013 dollars $    450000     tax due in  2013 dollars $   224277   245884     percentage of taxable income= 49.84%    for tax year 1968  percentage of 1954 taxes  91.21%
taxable income in 2013 dollars $    500000     tax due in  2013 dollars $   256994   283384     percentage of taxable income= 51.40%    for tax year 1968  percentage of 1954 taxes  90.69%
taxable income in 2013 dollars $    600000     tax due in  2013 dollars $   324416   360943     percentage of taxable income= 54.07%    for tax year 1968  percentage of 1954 taxes  89.88%
taxable income in 2013 dollars $    700000     tax due in  2013 dollars $   393785   442341     percentage of taxable income= 56.26%    for tax year 1968  percentage of 1954 taxes  89.02%
taxable income in 2013 dollars $    800000     tax due in  2013 dollars $   463785   527179     percentage of taxable income= 57.97%    for tax year 1968  percentage of 1954 taxes  87.97%
taxable income in 2013 dollars $    900000     tax due in  2013 dollars $   533785   615023     percentage of taxable income= 59.31%    for tax year 1968  percentage of 1954 taxes  86.79%
taxable income in 2013 dollars $   1000000     tax due in  2013 dollars $   603785   704023     percentage of taxable income= 60.38%    for tax year 1968  percentage of 1954 taxes  85.76%

1969 tax rate schedule with ORIGINAL dollar figures(for SINGLE taxpayer)
Historical data for the marginal rates was obtained at the Tax Foundation website at [U.S. Federal Individual Income Tax Rates History, 1913-2011 (Nominal and Inflation-Adjusted Brackets)]
Computation of the actual taxes due and the effective overall tax rate at each level were done by Jeff Sagarin.

Not over $    500 ................................... 14.00% of the taxable income      14.00% effective overall tax rate
Over $    500 but not over $   1000    $     70, plus 15.00% of excess over $    500    14.33% effective overall tax rate(computed on tax on middle of income range)
Over $   1000 but not over $   1500    $    145, plus 16.00% of excess over $   1000    14.80% effective overall tax rate(computed on tax on middle of income range)
Over $   1500 but not over $   2000    $    225, plus 17.00% of excess over $   1500    15.29% effective overall tax rate(computed on tax on middle of income range)
Over $   2000 but not over $   4000    $    310, plus 19.00% of excess over $   2000    16.67% effective overall tax rate(computed on tax on middle of income range)
Over $   4000 but not over $   6000    $    690, plus 22.00% of excess over $   4000    18.20% effective overall tax rate(computed on tax on middle of income range)
Over $   6000 but not over $   8000    $   1130, plus 25.00% of excess over $   6000    19.71% effective overall tax rate(computed on tax on middle of income range)
Over $   8000 but not over $  10000    $   1630, plus 28.00% of excess over $   8000    21.22% effective overall tax rate(computed on tax on middle of income range)
Over $  10000 but not over $  12000    $   2190, plus 32.00% of excess over $  10000    22.82% effective overall tax rate(computed on tax on middle of income range)
Over $  12000 but not over $  14000    $   2830, plus 36.00% of excess over $  12000    24.54% effective overall tax rate(computed on tax on middle of income range)
Over $  14000 but not over $  16000    $   3550, plus 39.00% of excess over $  14000    26.27% effective overall tax rate(computed on tax on middle of income range)
Over $  16000 but not over $  18000    $   4330, plus 42.00% of excess over $  16000    27.94% effective overall tax rate(computed on tax on middle of income range)
Over $  18000 but not over $  20000    $   5170, plus 45.00% of excess over $  18000    29.58% effective overall tax rate(computed on tax on middle of income range)
Over $  20000 but not over $  22000    $   6070, plus 48.00% of excess over $  20000    31.19% effective overall tax rate(computed on tax on middle of income range)
Over $  22000 but not over $  26000    $   7030, plus 50.00% of excess over $  22000    33.46% effective overall tax rate(computed on tax on middle of income range)
Over $  26000 but not over $  32000    $   9030, plus 53.00% of excess over $  26000    36.62% effective overall tax rate(computed on tax on middle of income range)
Over $  32000 but not over $  38000    $  12210, plus 55.00% of excess over $  32000    39.60% effective overall tax rate(computed on tax on middle of income range)
Over $  38000 but not over $  44000    $  15510, plus 58.00% of excess over $  38000    42.07% effective overall tax rate(computed on tax on middle of income range)
Over $  44000 but not over $  50000    $  18990, plus 60.00% of excess over $  44000    44.23% effective overall tax rate(computed on tax on middle of income range)
Over $  50000 but not over $  60000    $  22590, plus 62.00% of excess over $  50000    46.71% effective overall tax rate(computed on tax on middle of income range)
Over $  60000 but not over $  70000    $  28790, plus 64.00% of excess over $  60000    49.22% effective overall tax rate(computed on tax on middle of income range)
Over $  70000 but not over $  80000    $  35190, plus 66.00% of excess over $  70000    51.32% effective overall tax rate(computed on tax on middle of income range)
Over $  80000 but not over $  90000    $  41790, plus 68.00% of excess over $  80000    53.16% effective overall tax rate(computed on tax on middle of income range)
Over $  90000 but not over $ 100000    $  48590, plus 69.00% of excess over $  90000    54.78% effective overall tax rate(computed on tax on middle of income range)
Over $ 100000 ........................ $  55490, plus 70.00% of excess over $ 100000    55.49% <=> 70.00% effective overall tax rate as income goes to infinity
1969 tax rate schedule with figures INFLATION-ADJUSTED to 2013 dollars(for SINGLE taxpayer) ... the multiplier is 6.287629428 based on the average of the last 12 monthly figures through and including April 2013 released in mid-May 2013)
Inflation multiplier was determined from Bureau of Labor Statistics at [CPI Inflation Calculator | Historical Consumer Price Index]
Computation of the actual taxes due and the effective overall tax rate at each level were done by Jeff Sagarin.

Not over $   3144 ................................... 14.00% of the taxable income      14.00% effective overall tax rate
Over $   3144 but not over $   6288    $    440, plus 15.00% of excess over $   3144    14.33% effective overall tax rate(computed on tax on middle of income range)
Over $   6288 but not over $   9431    $    912, plus 16.00% of excess over $   6288    14.80% effective overall tax rate(computed on tax on middle of income range)
Over $   9431 but not over $  12575    $   1415, plus 17.00% of excess over $   9431    15.29% effective overall tax rate(computed on tax on middle of income range)
Over $  12575 but not over $  25151    $   1949, plus 19.00% of excess over $  12575    16.67% effective overall tax rate(computed on tax on middle of income range)
Over $  25151 but not over $  37726    $   4338, plus 22.00% of excess over $  25151    18.20% effective overall tax rate(computed on tax on middle of income range)
Over $  37726 but not over $  50301    $   7105, plus 25.00% of excess over $  37726    19.71% effective overall tax rate(computed on tax on middle of income range)
Over $  50301 but not over $  62876    $  10249, plus 28.00% of excess over $  50301    21.22% effective overall tax rate(computed on tax on middle of income range)
Over $  62876 but not over $  75452    $  13770, plus 32.00% of excess over $  62876    22.82% effective overall tax rate(computed on tax on middle of income range)
Over $  75452 but not over $  88027    $  17794, plus 36.00% of excess over $  75452    24.54% effective overall tax rate(computed on tax on middle of income range)
Over $  88027 but not over $ 100602    $  22321, plus 39.00% of excess over $  88027    26.27% effective overall tax rate(computed on tax on middle of income range)
Over $ 100602 but not over $ 113177    $  27225, plus 42.00% of excess over $ 100602    27.94% effective overall tax rate(computed on tax on middle of income range)
Over $ 113177 but not over $ 125753    $  32507, plus 45.00% of excess over $ 113177    29.58% effective overall tax rate(computed on tax on middle of income range)
Over $ 125753 but not over $ 138328    $  38166, plus 48.00% of excess over $ 125753    31.19% effective overall tax rate(computed on tax on middle of income range)
Over $ 138328 but not over $ 163478    $  44202, plus 50.00% of excess over $ 138328    33.46% effective overall tax rate(computed on tax on middle of income range)
Over $ 163478 but not over $ 201204    $  56777, plus 53.00% of excess over $ 163478    36.62% effective overall tax rate(computed on tax on middle of income range)
Over $ 201204 but not over $ 238930    $  76772, plus 55.00% of excess over $ 201204    39.60% effective overall tax rate(computed on tax on middle of income range)
Over $ 238930 but not over $ 276656    $  97521, plus 58.00% of excess over $ 238930    42.07% effective overall tax rate(computed on tax on middle of income range)
Over $ 276656 but not over $ 314381    $ 119402, plus 60.00% of excess over $ 276656    44.23% effective overall tax rate(computed on tax on middle of income range)
Over $ 314381 but not over $ 377258    $ 142038, plus 62.00% of excess over $ 314381    46.71% effective overall tax rate(computed on tax on middle of income range)
Over $ 377258 but not over $ 440134    $ 181021, plus 64.00% of excess over $ 377258    49.22% effective overall tax rate(computed on tax on middle of income range)
Over $ 440134 but not over $ 503010    $ 221262, plus 66.00% of excess over $ 440134    51.32% effective overall tax rate(computed on tax on middle of income range)
Over $ 503010 but not over $ 565887    $ 262760, plus 68.00% of excess over $ 503010    53.16% effective overall tax rate(computed on tax on middle of income range)
Over $ 565887 but not over $ 628763    $ 305516, plus 69.00% of excess over $ 565887    54.78% effective overall tax rate(computed on tax on middle of income range)
Over $ 628763 ........................ $ 348901, plus 70.00% of excess over $ 628763    55.49% <=> 70.00% effective overall tax rate as income goes to infinity
                                                                              1969     1954                                               using exact decimal values of taxes (not integers)
                                                                              ____     ____
taxable income in 2013 dollars $     10000     tax due in  2013 dollars $     1511     2000     percentage of taxable income= 15.11%    for tax year 1969  percentage of 1954 taxes  75.57%
taxable income in 2013 dollars $     20000     tax due in  2013 dollars $     3360     4057     percentage of taxable income= 16.80%    for tax year 1969  percentage of 1954 taxes  82.82%
taxable income in 2013 dollars $     30000     tax due in  2013 dollars $     5405     6257     percentage of taxable income= 18.02%    for tax year 1969  percentage of 1954 taxes  86.39%
taxable income in 2013 dollars $     40000     tax due in  2013 dollars $     7674     8684     percentage of taxable income= 19.18%    for tax year 1969  percentage of 1954 taxes  88.36%
taxable income in 2013 dollars $     50000     tax due in  2013 dollars $    10174    11284     percentage of taxable income= 20.35%    for tax year 1969  percentage of 1954 taxes  90.16%
taxable income in 2013 dollars $     60000     tax due in  2013 dollars $    12965    14226     percentage of taxable income= 21.61%    for tax year 1969  percentage of 1954 taxes  91.14%
taxable income in 2013 dollars $     70000     tax due in  2013 dollars $    16049    17280     percentage of taxable income= 22.93%    for tax year 1969  percentage of 1954 taxes  92.88%
taxable income in 2013 dollars $     80000     tax due in  2013 dollars $    19431    20680     percentage of taxable income= 24.29%    for tax year 1969  percentage of 1954 taxes  93.96%
taxable income in 2013 dollars $     90000     tax due in  2013 dollars $    23091    24249     percentage of taxable income= 25.66%    for tax year 1969  percentage of 1954 taxes  95.22%
taxable income in 2013 dollars $    100000     tax due in  2013 dollars $    26991    28049     percentage of taxable income= 26.99%    for tax year 1969  percentage of 1954 taxes  96.23%
taxable income in 2013 dollars $    150000     tax due in  2013 dollars $    50038    50981     percentage of taxable income= 33.36%    for tax year 1969  percentage of 1954 taxes  98.15%
taxable income in 2013 dollars $    200000     tax due in  2013 dollars $    76134    78540     percentage of taxable income= 38.07%    for tax year 1969  percentage of 1954 taxes  96.94%
taxable income in 2013 dollars $    250000     tax due in  2013 dollars $   103942   108849     percentage of taxable income= 41.58%    for tax year 1969  percentage of 1954 taxes  95.49%
taxable income in 2013 dollars $    300000     tax due in  2013 dollars $   133409   140614     percentage of taxable income= 44.47%    for tax year 1969  percentage of 1954 taxes  94.88%
taxable income in 2013 dollars $    350000     tax due in  2013 dollars $   164121   174075     percentage of taxable income= 46.89%    for tax year 1969  percentage of 1954 taxes  94.28%
taxable income in 2013 dollars $    400000     tax due in  2013 dollars $   195576   209251     percentage of taxable income= 48.89%    for tax year 1969  percentage of 1954 taxes  93.46%
taxable income in 2013 dollars $    450000     tax due in  2013 dollars $   227773   245884     percentage of taxable income= 50.62%    for tax year 1969  percentage of 1954 taxes  92.63%
taxable income in 2013 dollars $    500000     tax due in  2013 dollars $   260773   283384     percentage of taxable income= 52.15%    for tax year 1969  percentage of 1954 taxes  92.02%
taxable income in 2013 dollars $    600000     tax due in  2013 dollars $   329054   360943     percentage of taxable income= 54.84%    for tax year 1969  percentage of 1954 taxes  91.17%
taxable income in 2013 dollars $    700000     tax due in  2013 dollars $   398766   442341     percentage of taxable income= 56.97%    for tax year 1969  percentage of 1954 taxes  90.15%
taxable income in 2013 dollars $    800000     tax due in  2013 dollars $   468766   527179     percentage of taxable income= 58.60%    for tax year 1969  percentage of 1954 taxes  88.92%
taxable income in 2013 dollars $    900000     tax due in  2013 dollars $   538766   615023     percentage of taxable income= 59.86%    for tax year 1969  percentage of 1954 taxes  87.60%
taxable income in 2013 dollars $   1000000     tax due in  2013 dollars $   608766   704023     percentage of taxable income= 60.88%    for tax year 1969  percentage of 1954 taxes  86.47%

1970 tax rate schedule with ORIGINAL dollar figures(for SINGLE taxpayer)
Historical data for the marginal rates was obtained at the Tax Foundation website at [U.S. Federal Individual Income Tax Rates History, 1913-2011 (Nominal and Inflation-Adjusted Brackets)]
Computation of the actual taxes due and the effective overall tax rate at each level were done by Jeff Sagarin.

Not over $    500 ................................... 14.00% of the taxable income      14.00% effective overall tax rate
Over $    500 but not over $   1000    $     70, plus 15.00% of excess over $    500    14.33% effective overall tax rate(computed on tax on middle of income range)
Over $   1000 but not over $   1500    $    145, plus 16.00% of excess over $   1000    14.80% effective overall tax rate(computed on tax on middle of income range)
Over $   1500 but not over $   2000    $    225, plus 17.00% of excess over $   1500    15.29% effective overall tax rate(computed on tax on middle of income range)
Over $   2000 but not over $   4000    $    310, plus 19.00% of excess over $   2000    16.67% effective overall tax rate(computed on tax on middle of income range)
Over $   4000 but not over $   6000    $    690, plus 22.00% of excess over $   4000    18.20% effective overall tax rate(computed on tax on middle of income range)
Over $   6000 but not over $   8000    $   1130, plus 25.00% of excess over $   6000    19.71% effective overall tax rate(computed on tax on middle of income range)
Over $   8000 but not over $  10000    $   1630, plus 28.00% of excess over $   8000    21.22% effective overall tax rate(computed on tax on middle of income range)
Over $  10000 but not over $  12000    $   2190, plus 32.00% of excess over $  10000    22.82% effective overall tax rate(computed on tax on middle of income range)
Over $  12000 but not over $  14000    $   2830, plus 36.00% of excess over $  12000    24.54% effective overall tax rate(computed on tax on middle of income range)
Over $  14000 but not over $  16000    $   3550, plus 39.00% of excess over $  14000    26.27% effective overall tax rate(computed on tax on middle of income range)
Over $  16000 but not over $  18000    $   4330, plus 42.00% of excess over $  16000    27.94% effective overall tax rate(computed on tax on middle of income range)
Over $  18000 but not over $  20000    $   5170, plus 45.00% of excess over $  18000    29.58% effective overall tax rate(computed on tax on middle of income range)
Over $  20000 but not over $  22000    $   6070, plus 48.00% of excess over $  20000    31.19% effective overall tax rate(computed on tax on middle of income range)
Over $  22000 but not over $  26000    $   7030, plus 50.00% of excess over $  22000    33.46% effective overall tax rate(computed on tax on middle of income range)
Over $  26000 but not over $  32000    $   9030, plus 53.00% of excess over $  26000    36.62% effective overall tax rate(computed on tax on middle of income range)
Over $  32000 but not over $  38000    $  12210, plus 55.00% of excess over $  32000    39.60% effective overall tax rate(computed on tax on middle of income range)
Over $  38000 but not over $  44000    $  15510, plus 58.00% of excess over $  38000    42.07% effective overall tax rate(computed on tax on middle of income range)
Over $  44000 but not over $  50000    $  18990, plus 60.00% of excess over $  44000    44.23% effective overall tax rate(computed on tax on middle of income range)
Over $  50000 but not over $  60000    $  22590, plus 62.00% of excess over $  50000    46.71% effective overall tax rate(computed on tax on middle of income range)
Over $  60000 but not over $  70000    $  28790, plus 64.00% of excess over $  60000    49.22% effective overall tax rate(computed on tax on middle of income range)
Over $  70000 but not over $  80000    $  35190, plus 66.00% of excess over $  70000    51.32% effective overall tax rate(computed on tax on middle of income range)
Over $  80000 but not over $  90000    $  41790, plus 68.00% of excess over $  80000    53.16% effective overall tax rate(computed on tax on middle of income range)
Over $  90000 but not over $ 100000    $  48590, plus 69.00% of excess over $  90000    54.78% effective overall tax rate(computed on tax on middle of income range)
Over $ 100000 ........................ $  55490, plus 70.00% of excess over $ 100000    55.49% <=> 70.00% effective overall tax rate as income goes to infinity
1970 tax rate schedule with figures INFLATION-ADJUSTED to 2013 dollars(for SINGLE taxpayer) ... the multiplier is 5.947319587 based on the average of the last 12 monthly figures through and including April 2013 released in mid-May 2013)
Inflation multiplier was determined from Bureau of Labor Statistics at [CPI Inflation Calculator | Historical Consumer Price Index]
Computation of the actual taxes due and the effective overall tax rate at each level were done by Jeff Sagarin.

Not over $   2974 ................................... 14.00% of the taxable income      14.00% effective overall tax rate
Over $   2974 but not over $   5947    $    416, plus 15.00% of excess over $   2974    14.33% effective overall tax rate(computed on tax on middle of income range)
Over $   5947 but not over $   8921    $    862, plus 16.00% of excess over $   5947    14.80% effective overall tax rate(computed on tax on middle of income range)
Over $   8921 but not over $  11895    $   1338, plus 17.00% of excess over $   8921    15.29% effective overall tax rate(computed on tax on middle of income range)
Over $  11895 but not over $  23789    $   1844, plus 19.00% of excess over $  11895    16.67% effective overall tax rate(computed on tax on middle of income range)
Over $  23789 but not over $  35684    $   4104, plus 22.00% of excess over $  23789    18.20% effective overall tax rate(computed on tax on middle of income range)
Over $  35684 but not over $  47579    $   6720, plus 25.00% of excess over $  35684    19.71% effective overall tax rate(computed on tax on middle of income range)
Over $  47579 but not over $  59473    $   9694, plus 28.00% of excess over $  47579    21.22% effective overall tax rate(computed on tax on middle of income range)
Over $  59473 but not over $  71368    $  13025, plus 32.00% of excess over $  59473    22.82% effective overall tax rate(computed on tax on middle of income range)
Over $  71368 but not over $  83262    $  16831, plus 36.00% of excess over $  71368    24.54% effective overall tax rate(computed on tax on middle of income range)
Over $  83262 but not over $  95157    $  21113, plus 39.00% of excess over $  83262    26.27% effective overall tax rate(computed on tax on middle of income range)
Over $  95157 but not over $ 107052    $  25752, plus 42.00% of excess over $  95157    27.94% effective overall tax rate(computed on tax on middle of income range)
Over $ 107052 but not over $ 118946    $  30748, plus 45.00% of excess over $ 107052    29.58% effective overall tax rate(computed on tax on middle of income range)
Over $ 118946 but not over $ 130841    $  36100, plus 48.00% of excess over $ 118946    31.19% effective overall tax rate(computed on tax on middle of income range)
Over $ 130841 but not over $ 154630    $  41810, plus 50.00% of excess over $ 130841    33.46% effective overall tax rate(computed on tax on middle of income range)
Over $ 154630 but not over $ 190314    $  53704, plus 53.00% of excess over $ 154630    36.62% effective overall tax rate(computed on tax on middle of income range)
Over $ 190314 but not over $ 225998    $  72617, plus 55.00% of excess over $ 190314    39.60% effective overall tax rate(computed on tax on middle of income range)
Over $ 225998 but not over $ 261682    $  92243, plus 58.00% of excess over $ 225998    42.07% effective overall tax rate(computed on tax on middle of income range)
Over $ 261682 but not over $ 297366    $ 112940, plus 60.00% of excess over $ 261682    44.23% effective overall tax rate(computed on tax on middle of income range)
Over $ 297366 but not over $ 356839    $ 134350, plus 62.00% of excess over $ 297366    46.71% effective overall tax rate(computed on tax on middle of income range)
Over $ 356839 but not over $ 416312    $ 171223, plus 64.00% of excess over $ 356839    49.22% effective overall tax rate(computed on tax on middle of income range)
Over $ 416312 but not over $ 475786    $ 209286, plus 66.00% of excess over $ 416312    51.32% effective overall tax rate(computed on tax on middle of income range)
Over $ 475786 but not over $ 535259    $ 248538, plus 68.00% of excess over $ 475786    53.16% effective overall tax rate(computed on tax on middle of income range)
Over $ 535259 but not over $ 594732    $ 288980, plus 69.00% of excess over $ 535259    54.78% effective overall tax rate(computed on tax on middle of income range)
Over $ 594732 ........................ $ 330017, plus 70.00% of excess over $ 594732    55.49% <=> 70.00% effective overall tax rate as income goes to infinity
                                                                              1970     1954                                               using exact decimal values of taxes (not integers)
                                                                              ____     ____
taxable income in 2013 dollars $     10000     tax due in  2013 dollars $     1522     2000     percentage of taxable income= 15.22%    for tax year 1970  percentage of 1954 taxes  76.08%
taxable income in 2013 dollars $     20000     tax due in  2013 dollars $     3384     4057     percentage of taxable income= 16.92%    for tax year 1970  percentage of 1954 taxes  83.41%
taxable income in 2013 dollars $     30000     tax due in  2013 dollars $     5470     6257     percentage of taxable income= 18.23%    for tax year 1970  percentage of 1954 taxes  87.42%
taxable income in 2013 dollars $     40000     tax due in  2013 dollars $     7799     8684     percentage of taxable income= 19.50%    for tax year 1970  percentage of 1954 taxes  89.81%
taxable income in 2013 dollars $     50000     tax due in  2013 dollars $    10372    11284     percentage of taxable income= 20.74%    for tax year 1970  percentage of 1954 taxes  91.92%
taxable income in 2013 dollars $     60000     tax due in  2013 dollars $    13193    14226     percentage of taxable income= 21.99%    for tax year 1970  percentage of 1954 taxes  92.74%
taxable income in 2013 dollars $     70000     tax due in  2013 dollars $    16393    17280     percentage of taxable income= 23.42%    for tax year 1970  percentage of 1954 taxes  94.87%
taxable income in 2013 dollars $     80000     tax due in  2013 dollars $    19938    20680     percentage of taxable income= 24.92%    for tax year 1970  percentage of 1954 taxes  96.41%
taxable income in 2013 dollars $     90000     tax due in  2013 dollars $    23741    24249     percentage of taxable income= 26.38%    for tax year 1970  percentage of 1954 taxes  97.90%
taxable income in 2013 dollars $    100000     tax due in  2013 dollars $    27786    28049     percentage of taxable income= 27.79%    for tax year 1970  percentage of 1954 taxes  99.06%
taxable income in 2013 dollars $    150000     tax due in  2013 dollars $    51389    50981     percentage of taxable income= 34.26%    for tax year 1970  percentage of 1954 taxes  100.80%
taxable income in 2013 dollars $    200000     tax due in  2013 dollars $    77944    78540     percentage of taxable income= 38.97%    for tax year 1970  percentage of 1954 taxes  99.24%
taxable income in 2013 dollars $    250000     tax due in  2013 dollars $   106164   108849     percentage of taxable income= 42.47%    for tax year 1970  percentage of 1954 taxes  97.53%
taxable income in 2013 dollars $    300000     tax due in  2013 dollars $   135983   140614     percentage of taxable income= 45.33%    for tax year 1970  percentage of 1954 taxes  96.71%
taxable income in 2013 dollars $    350000     tax due in  2013 dollars $   166983   174075     percentage of taxable income= 47.71%    for tax year 1970  percentage of 1954 taxes  95.93%
taxable income in 2013 dollars $    400000     tax due in  2013 dollars $   198846   209251     percentage of taxable income= 49.71%    for tax year 1970  percentage of 1954 taxes  95.03%
taxable income in 2013 dollars $    450000     tax due in  2013 dollars $   231520   245884     percentage of taxable income= 51.45%    for tax year 1970  percentage of 1954 taxes  94.16%
taxable income in 2013 dollars $    500000     tax due in  2013 dollars $   265004   283384     percentage of taxable income= 53.00%    for tax year 1970  percentage of 1954 taxes  93.51%
taxable income in 2013 dollars $    600000     tax due in  2013 dollars $   333704   360943     percentage of taxable income= 55.62%    for tax year 1970  percentage of 1954 taxes  92.45%
taxable income in 2013 dollars $    700000     tax due in  2013 dollars $   403704   442341     percentage of taxable income= 57.67%    for tax year 1970  percentage of 1954 taxes  91.27%
taxable income in 2013 dollars $    800000     tax due in  2013 dollars $   473704   527179     percentage of taxable income= 59.21%    for tax year 1970  percentage of 1954 taxes  89.86%
taxable income in 2013 dollars $    900000     tax due in  2013 dollars $   543704   615023     percentage of taxable income= 60.41%    for tax year 1970  percentage of 1954 taxes  88.40%
taxable income in 2013 dollars $   1000000     tax due in  2013 dollars $   613704   704023     percentage of taxable income= 61.37%    for tax year 1970  percentage of 1954 taxes  87.17%

1971 tax rate schedule with ORIGINAL dollar figures(for SINGLE taxpayer)
Historical data for the marginal rates was obtained at the Tax Foundation website at [U.S. Federal Individual Income Tax Rates History, 1913-2011 (Nominal and Inflation-Adjusted Brackets)]
Computation of the actual taxes due and the effective overall tax rate at each level were done by Jeff Sagarin.

Not over $    500 ................................... 14.00% of the taxable income      14.00% effective overall tax rate
Over $    500 but not over $   1000    $     70, plus 15.00% of excess over $    500    14.33% effective overall tax rate(computed on tax on middle of income range)
Over $   1000 but not over $   1500    $    145, plus 16.00% of excess over $   1000    14.80% effective overall tax rate(computed on tax on middle of income range)
Over $   1500 but not over $   2000    $    225, plus 17.00% of excess over $   1500    15.29% effective overall tax rate(computed on tax on middle of income range)
Over $   2000 but not over $   4000    $    310, plus 19.00% of excess over $   2000    16.67% effective overall tax rate(computed on tax on middle of income range)
Over $   4000 but not over $   6000    $    690, plus 21.00% of excess over $   4000    18.00% effective overall tax rate(computed on tax on middle of income range)
Over $   6000 but not over $   8000    $   1110, plus 24.00% of excess over $   6000    19.29% effective overall tax rate(computed on tax on middle of income range)
Over $   8000 but not over $  10000    $   1590, plus 25.00% of excess over $   8000    20.44% effective overall tax rate(computed on tax on middle of income range)
Over $  10000 but not over $  12000    $   2090, plus 27.00% of excess over $  10000    21.45% effective overall tax rate(computed on tax on middle of income range)
Over $  12000 but not over $  14000    $   2630, plus 29.00% of excess over $  12000    22.46% effective overall tax rate(computed on tax on middle of income range)
Over $  14000 but not over $  16000    $   3210, plus 31.00% of excess over $  14000    23.47% effective overall tax rate(computed on tax on middle of income range)
Over $  16000 but not over $  18000    $   3830, plus 34.00% of excess over $  16000    24.53% effective overall tax rate(computed on tax on middle of income range)
Over $  18000 but not over $  20000    $   4510, plus 36.00% of excess over $  18000    25.63% effective overall tax rate(computed on tax on middle of income range)
Over $  20000 but not over $  22000    $   5230, plus 38.00% of excess over $  20000    26.71% effective overall tax rate(computed on tax on middle of income range)
Over $  22000 but not over $  26000    $   5990, plus 40.00% of excess over $  22000    28.29% effective overall tax rate(computed on tax on middle of income range)
Over $  26000 but not over $  32000    $   7590, plus 45.00% of excess over $  26000    30.83% effective overall tax rate(computed on tax on middle of income range)
Over $  32000 but not over $  38000    $  10290, plus 50.00% of excess over $  32000    33.69% effective overall tax rate(computed on tax on middle of income range)
Over $  38000 but not over $  44000    $  13290, plus 55.00% of excess over $  38000    36.44% effective overall tax rate(computed on tax on middle of income range)
Over $  44000 but not over $  50000    $  16590, plus 60.00% of excess over $  44000    39.13% effective overall tax rate(computed on tax on middle of income range)
Over $  50000 but not over $  60000    $  20190, plus 62.00% of excess over $  50000    42.35% effective overall tax rate(computed on tax on middle of income range)
Over $  60000 but not over $  70000    $  26390, plus 64.00% of excess over $  60000    45.52% effective overall tax rate(computed on tax on middle of income range)
Over $  70000 but not over $  80000    $  32790, plus 66.00% of excess over $  70000    48.12% effective overall tax rate(computed on tax on middle of income range)
Over $  80000 but not over $  90000    $  39390, plus 68.00% of excess over $  80000    50.34% effective overall tax rate(computed on tax on middle of income range)
Over $  90000 but not over $ 100000    $  46190, plus 69.00% of excess over $  90000    52.25% effective overall tax rate(computed on tax on middle of income range)
Over $ 100000 ........................ $  53090, plus 70.00% of excess over $ 100000    53.09% <=> 70.00% effective overall tax rate as income goes to infinity
1971 tax rate schedule with figures INFLATION-ADJUSTED to 2013 dollars(for SINGLE taxpayer) ... the multiplier is 5.697679013 based on the average of the last 12 monthly figures through and including April 2013 released in mid-May 2013)
Inflation multiplier was determined from Bureau of Labor Statistics at [CPI Inflation Calculator | Historical Consumer Price Index]
Computation of the actual taxes due and the effective overall tax rate at each level were done by Jeff Sagarin.

Not over $   2849 ................................... 14.00% of the taxable income      14.00% effective overall tax rate
Over $   2849 but not over $   5698    $    399, plus 15.00% of excess over $   2849    14.33% effective overall tax rate(computed on tax on middle of income range)
Over $   5698 but not over $   8547    $    826, plus 16.00% of excess over $   5698    14.80% effective overall tax rate(computed on tax on middle of income range)
Over $   8547 but not over $  11395    $   1282, plus 17.00% of excess over $   8547    15.29% effective overall tax rate(computed on tax on middle of income range)
Over $  11395 but not over $  22791    $   1766, plus 19.00% of excess over $  11395    16.67% effective overall tax rate(computed on tax on middle of income range)
Over $  22791 but not over $  34186    $   3931, plus 21.00% of excess over $  22791    18.00% effective overall tax rate(computed on tax on middle of income range)
Over $  34186 but not over $  45581    $   6324, plus 24.00% of excess over $  34186    19.29% effective overall tax rate(computed on tax on middle of income range)
Over $  45581 but not over $  56977    $   9059, plus 25.00% of excess over $  45581    20.44% effective overall tax rate(computed on tax on middle of income range)
Over $  56977 but not over $  68372    $  11908, plus 27.00% of excess over $  56977    21.45% effective overall tax rate(computed on tax on middle of income range)
Over $  68372 but not over $  79768    $  14985, plus 29.00% of excess over $  68372    22.46% effective overall tax rate(computed on tax on middle of income range)
Over $  79768 but not over $  91163    $  18290, plus 31.00% of excess over $  79768    23.47% effective overall tax rate(computed on tax on middle of income range)
Over $  91163 but not over $ 102558    $  21822, plus 34.00% of excess over $  91163    24.53% effective overall tax rate(computed on tax on middle of income range)
Over $ 102558 but not over $ 113954    $  25697, plus 36.00% of excess over $ 102558    25.63% effective overall tax rate(computed on tax on middle of income range)
Over $ 113954 but not over $ 125349    $  29799, plus 38.00% of excess over $ 113954    26.71% effective overall tax rate(computed on tax on middle of income range)
Over $ 125349 but not over $ 148140    $  34129, plus 40.00% of excess over $ 125349    28.29% effective overall tax rate(computed on tax on middle of income range)
Over $ 148140 but not over $ 182326    $  43245, plus 45.00% of excess over $ 148140    30.83% effective overall tax rate(computed on tax on middle of income range)
Over $ 182326 but not over $ 216512    $  58629, plus 50.00% of excess over $ 182326    33.69% effective overall tax rate(computed on tax on middle of income range)
Over $ 216512 but not over $ 250698    $  75722, plus 55.00% of excess over $ 216512    36.44% effective overall tax rate(computed on tax on middle of income range)
Over $ 250698 but not over $ 284884    $  94524, plus 60.00% of excess over $ 250698    39.13% effective overall tax rate(computed on tax on middle of income range)
Over $ 284884 but not over $ 341861    $ 115036, plus 62.00% of excess over $ 284884    42.35% effective overall tax rate(computed on tax on middle of income range)
Over $ 341861 but not over $ 398838    $ 150362, plus 64.00% of excess over $ 341861    45.52% effective overall tax rate(computed on tax on middle of income range)
Over $ 398838 but not over $ 455814    $ 186827, plus 66.00% of excess over $ 398838    48.12% effective overall tax rate(computed on tax on middle of income range)
Over $ 455814 but not over $ 512791    $ 224432, plus 68.00% of excess over $ 455814    50.34% effective overall tax rate(computed on tax on middle of income range)
Over $ 512791 but not over $ 569768    $ 263176, plus 69.00% of excess over $ 512791    52.25% effective overall tax rate(computed on tax on middle of income range)
Over $ 569768 ........................ $ 302490, plus 70.00% of excess over $ 569768    53.09% <=> 70.00% effective overall tax rate as income goes to infinity
                                                                              1971     1954                                               using exact decimal values of taxes (not integers)
                                                                              ____     ____
taxable income in 2013 dollars $     10000     tax due in  2013 dollars $     1529     2000     percentage of taxable income= 15.29%    for tax year 1971  percentage of 1954 taxes  76.45%
taxable income in 2013 dollars $     20000     tax due in  2013 dollars $     3401     4057     percentage of taxable income= 17.01%    for tax year 1971  percentage of 1954 taxes  83.84%
taxable income in 2013 dollars $     30000     tax due in  2013 dollars $     5445     6257     percentage of taxable income= 18.15%    for tax year 1971  percentage of 1954 taxes  87.03%
taxable income in 2013 dollars $     40000     tax due in  2013 dollars $     7720     8684     percentage of taxable income= 19.30%    for tax year 1971  percentage of 1954 taxes  88.89%
taxable income in 2013 dollars $     50000     tax due in  2013 dollars $    10164    11284     percentage of taxable income= 20.33%    for tax year 1971  percentage of 1954 taxes  90.07%
taxable income in 2013 dollars $     60000     tax due in  2013 dollars $    12724    14226     percentage of taxable income= 21.21%    for tax year 1971  percentage of 1954 taxes  89.45%
taxable income in 2013 dollars $     70000     tax due in  2013 dollars $    15457    17280     percentage of taxable income= 22.08%    for tax year 1971  percentage of 1954 taxes  89.45%
taxable income in 2013 dollars $     80000     tax due in  2013 dollars $    18362    20680     percentage of taxable income= 22.95%    for tax year 1971  percentage of 1954 taxes  88.79%
taxable income in 2013 dollars $     90000     tax due in  2013 dollars $    21462    24249     percentage of taxable income= 23.85%    for tax year 1971  percentage of 1954 taxes  88.50%
taxable income in 2013 dollars $    100000     tax due in  2013 dollars $    24827    28049     percentage of taxable income= 24.83%    for tax year 1971  percentage of 1954 taxes  88.51%
taxable income in 2013 dollars $    150000     tax due in  2013 dollars $    44083    50981     percentage of taxable income= 29.39%    for tax year 1971  percentage of 1954 taxes  86.47%
taxable income in 2013 dollars $    200000     tax due in  2013 dollars $    67466    78540     percentage of taxable income= 33.73%    for tax year 1971  percentage of 1954 taxes  85.90%
taxable income in 2013 dollars $    250000     tax due in  2013 dollars $    94141   108849     percentage of taxable income= 37.66%    for tax year 1971  percentage of 1954 taxes  86.49%
taxable income in 2013 dollars $    300000     tax due in  2013 dollars $   124408   140614     percentage of taxable income= 41.47%    for tax year 1971  percentage of 1954 taxes  88.48%
taxable income in 2013 dollars $    350000     tax due in  2013 dollars $   155571   174075     percentage of taxable income= 44.45%    for tax year 1971  percentage of 1954 taxes  89.37%
taxable income in 2013 dollars $    400000     tax due in  2013 dollars $   187594   209251     percentage of taxable income= 46.90%    for tax year 1971  percentage of 1954 taxes  89.65%
taxable income in 2013 dollars $    450000     tax due in  2013 dollars $   220594   245884     percentage of taxable income= 49.02%    for tax year 1971  percentage of 1954 taxes  89.71%
taxable income in 2013 dollars $    500000     tax due in  2013 dollars $   254478   283384     percentage of taxable income= 50.90%    for tax year 1971  percentage of 1954 taxes  89.80%
taxable income in 2013 dollars $    600000     tax due in  2013 dollars $   323652   360943     percentage of taxable income= 53.94%    for tax year 1971  percentage of 1954 taxes  89.67%
taxable income in 2013 dollars $    700000     tax due in  2013 dollars $   393652   442341     percentage of taxable income= 56.24%    for tax year 1971  percentage of 1954 taxes  88.99%
taxable income in 2013 dollars $    800000     tax due in  2013 dollars $   463652   527179     percentage of taxable income= 57.96%    for tax year 1971  percentage of 1954 taxes  87.95%
taxable income in 2013 dollars $    900000     tax due in  2013 dollars $   533652   615023     percentage of taxable income= 59.29%    for tax year 1971  percentage of 1954 taxes  86.77%
taxable income in 2013 dollars $   1000000     tax due in  2013 dollars $   603652   704023     percentage of taxable income= 60.37%    for tax year 1971  percentage of 1954 taxes  85.74%

1972 tax rate schedule with ORIGINAL dollar figures(for SINGLE taxpayer)
Historical data for the marginal rates was obtained at the Tax Foundation website at [U.S. Federal Individual Income Tax Rates History, 1913-2011 (Nominal and Inflation-Adjusted Brackets)]
Computation of the actual taxes due and the effective overall tax rate at each level were done by Jeff Sagarin.

Not over $    500 ................................... 14.00% of the taxable income      14.00% effective overall tax rate
Over $    500 but not over $   1000    $     70, plus 15.00% of excess over $    500    14.33% effective overall tax rate(computed on tax on middle of income range)
Over $   1000 but not over $   1500    $    145, plus 16.00% of excess over $   1000    14.80% effective overall tax rate(computed on tax on middle of income range)
Over $   1500 but not over $   2000    $    225, plus 17.00% of excess over $   1500    15.29% effective overall tax rate(computed on tax on middle of income range)
Over $   2000 but not over $   4000    $    310, plus 19.00% of excess over $   2000    16.67% effective overall tax rate(computed on tax on middle of income range)
Over $   4000 but not over $   6000    $    690, plus 21.00% of excess over $   4000    18.00% effective overall tax rate(computed on tax on middle of income range)
Over $   6000 but not over $   8000    $   1110, plus 24.00% of excess over $   6000    19.29% effective overall tax rate(computed on tax on middle of income range)
Over $   8000 but not over $  10000    $   1590, plus 25.00% of excess over $   8000    20.44% effective overall tax rate(computed on tax on middle of income range)
Over $  10000 but not over $  12000    $   2090, plus 27.00% of excess over $  10000    21.45% effective overall tax rate(computed on tax on middle of income range)
Over $  12000 but not over $  14000    $   2630, plus 29.00% of excess over $  12000    22.46% effective overall tax rate(computed on tax on middle of income range)
Over $  14000 but not over $  16000    $   3210, plus 31.00% of excess over $  14000    23.47% effective overall tax rate(computed on tax on middle of income range)
Over $  16000 but not over $  18000    $   3830, plus 34.00% of excess over $  16000    24.53% effective overall tax rate(computed on tax on middle of income range)
Over $  18000 but not over $  20000    $   4510, plus 36.00% of excess over $  18000    25.63% effective overall tax rate(computed on tax on middle of income range)
Over $  20000 but not over $  22000    $   5230, plus 38.00% of excess over $  20000    26.71% effective overall tax rate(computed on tax on middle of income range)
Over $  22000 but not over $  26000    $   5990, plus 40.00% of excess over $  22000    28.29% effective overall tax rate(computed on tax on middle of income range)
Over $  26000 but not over $  32000    $   7590, plus 45.00% of excess over $  26000    30.83% effective overall tax rate(computed on tax on middle of income range)
Over $  32000 but not over $  38000    $  10290, plus 50.00% of excess over $  32000    33.69% effective overall tax rate(computed on tax on middle of income range)
Over $  38000 but not over $  44000    $  13290, plus 55.00% of excess over $  38000    36.44% effective overall tax rate(computed on tax on middle of income range)
Over $  44000 but not over $  50000    $  16590, plus 60.00% of excess over $  44000    39.13% effective overall tax rate(computed on tax on middle of income range)
Over $  50000 but not over $  60000    $  20190, plus 62.00% of excess over $  50000    42.35% effective overall tax rate(computed on tax on middle of income range)
Over $  60000 but not over $  70000    $  26390, plus 64.00% of excess over $  60000    45.52% effective overall tax rate(computed on tax on middle of income range)
Over $  70000 but not over $  80000    $  32790, plus 66.00% of excess over $  70000    48.12% effective overall tax rate(computed on tax on middle of income range)
Over $  80000 but not over $  90000    $  39390, plus 68.00% of excess over $  80000    50.34% effective overall tax rate(computed on tax on middle of income range)
Over $  90000 but not over $ 100000    $  46190, plus 69.00% of excess over $  90000    52.25% effective overall tax rate(computed on tax on middle of income range)
Over $ 100000 ........................ $  53090, plus 70.00% of excess over $ 100000    53.09% <=> 70.00% effective overall tax rate as income goes to infinity
1972 tax rate schedule with figures INFLATION-ADJUSTED to 2013 dollars(for SINGLE taxpayer) ... the multiplier is 5.520478469 based on the average of the last 12 monthly figures through and including April 2013 released in mid-May 2013)
Inflation multiplier was determined from Bureau of Labor Statistics at [CPI Inflation Calculator | Historical Consumer Price Index]
Computation of the actual taxes due and the effective overall tax rate at each level were done by Jeff Sagarin.

Not over $   2760 ................................... 14.00% of the taxable income      14.00% effective overall tax rate
Over $   2760 but not over $   5520    $    386, plus 15.00% of excess over $   2760    14.33% effective overall tax rate(computed on tax on middle of income range)
Over $   5520 but not over $   8281    $    800, plus 16.00% of excess over $   5520    14.80% effective overall tax rate(computed on tax on middle of income range)
Over $   8281 but not over $  11041    $   1242, plus 17.00% of excess over $   8281    15.29% effective overall tax rate(computed on tax on middle of income range)
Over $  11041 but not over $  22082    $   1711, plus 19.00% of excess over $  11041    16.67% effective overall tax rate(computed on tax on middle of income range)
Over $  22082 but not over $  33123    $   3809, plus 21.00% of excess over $  22082    18.00% effective overall tax rate(computed on tax on middle of income range)
Over $  33123 but not over $  44164    $   6128, plus 24.00% of excess over $  33123    19.29% effective overall tax rate(computed on tax on middle of income range)
Over $  44164 but not over $  55205    $   8778, plus 25.00% of excess over $  44164    20.44% effective overall tax rate(computed on tax on middle of income range)
Over $  55205 but not over $  66246    $  11538, plus 27.00% of excess over $  55205    21.45% effective overall tax rate(computed on tax on middle of income range)
Over $  66246 but not over $  77287    $  14519, plus 29.00% of excess over $  66246    22.46% effective overall tax rate(computed on tax on middle of income range)
Over $  77287 but not over $  88328    $  17721, plus 31.00% of excess over $  77287    23.47% effective overall tax rate(computed on tax on middle of income range)
Over $  88328 but not over $  99369    $  21143, plus 34.00% of excess over $  88328    24.53% effective overall tax rate(computed on tax on middle of income range)
Over $  99369 but not over $ 110410    $  24897, plus 36.00% of excess over $  99369    25.63% effective overall tax rate(computed on tax on middle of income range)
Over $ 110410 but not over $ 121451    $  28872, plus 38.00% of excess over $ 110410    26.71% effective overall tax rate(computed on tax on middle of income range)
Over $ 121451 but not over $ 143532    $  33068, plus 40.00% of excess over $ 121451    28.29% effective overall tax rate(computed on tax on middle of income range)
Over $ 143532 but not over $ 176655    $  41900, plus 45.00% of excess over $ 143532    30.83% effective overall tax rate(computed on tax on middle of income range)
Over $ 176655 but not over $ 209778    $  56806, plus 50.00% of excess over $ 176655    33.69% effective overall tax rate(computed on tax on middle of income range)
Over $ 209778 but not over $ 242901    $  73367, plus 55.00% of excess over $ 209778    36.44% effective overall tax rate(computed on tax on middle of income range)
Over $ 242901 but not over $ 276024    $  91585, plus 60.00% of excess over $ 242901    39.13% effective overall tax rate(computed on tax on middle of income range)
Over $ 276024 but not over $ 331229    $ 111458, plus 62.00% of excess over $ 276024    42.35% effective overall tax rate(computed on tax on middle of income range)
Over $ 331229 but not over $ 386433    $ 145685, plus 64.00% of excess over $ 331229    45.52% effective overall tax rate(computed on tax on middle of income range)
Over $ 386433 but not over $ 441638    $ 181016, plus 66.00% of excess over $ 386433    48.12% effective overall tax rate(computed on tax on middle of income range)
Over $ 441638 but not over $ 496843    $ 217452, plus 68.00% of excess over $ 441638    50.34% effective overall tax rate(computed on tax on middle of income range)
Over $ 496843 but not over $ 552048    $ 254991, plus 69.00% of excess over $ 496843    52.25% effective overall tax rate(computed on tax on middle of income range)
Over $ 552048 ........................ $ 293082, plus 70.00% of excess over $ 552048    53.09% <=> 70.00% effective overall tax rate as income goes to infinity
                                                                              1972     1954                                               using exact decimal values of taxes (not integers)
                                                                              ____     ____
taxable income in 2013 dollars $     10000     tax due in  2013 dollars $     1534     2000     percentage of taxable income= 15.34%    for tax year 1972  percentage of 1954 taxes  76.72%
taxable income in 2013 dollars $     20000     tax due in  2013 dollars $     3414     4057     percentage of taxable income= 17.07%    for tax year 1972  percentage of 1954 taxes  84.14%
taxable income in 2013 dollars $     30000     tax due in  2013 dollars $     5472     6257     percentage of taxable income= 18.24%    for tax year 1972  percentage of 1954 taxes  87.45%
taxable income in 2013 dollars $     40000     tax due in  2013 dollars $     7778     8684     percentage of taxable income= 19.45%    for tax year 1972  percentage of 1954 taxes  89.57%
taxable income in 2013 dollars $     50000     tax due in  2013 dollars $    10237    11284     percentage of taxable income= 20.47%    for tax year 1972  percentage of 1954 taxes  90.72%
taxable income in 2013 dollars $     60000     tax due in  2013 dollars $    12833    14226     percentage of taxable income= 21.39%    for tax year 1972  percentage of 1954 taxes  90.21%
taxable income in 2013 dollars $     70000     tax due in  2013 dollars $    15608    17280     percentage of taxable income= 22.30%    for tax year 1972  percentage of 1954 taxes  90.32%
taxable income in 2013 dollars $     80000     tax due in  2013 dollars $    18562    20680     percentage of taxable income= 23.20%    for tax year 1972  percentage of 1954 taxes  89.76%
taxable income in 2013 dollars $     90000     tax due in  2013 dollars $    21712    24249     percentage of taxable income= 24.12%    for tax year 1972  percentage of 1954 taxes  89.54%
taxable income in 2013 dollars $    100000     tax due in  2013 dollars $    25125    28049     percentage of taxable income= 25.12%    for tax year 1972  percentage of 1954 taxes  89.57%
taxable income in 2013 dollars $    150000     tax due in  2013 dollars $    44811    50981     percentage of taxable income= 29.87%    for tax year 1972  percentage of 1954 taxes  87.90%
taxable income in 2013 dollars $    200000     tax due in  2013 dollars $    68478    78540     percentage of taxable income= 34.24%    for tax year 1972  percentage of 1954 taxes  87.19%
taxable income in 2013 dollars $    250000     tax due in  2013 dollars $    95844   108849     percentage of taxable income= 38.34%    for tax year 1972  percentage of 1954 taxes  88.05%
taxable income in 2013 dollars $    300000     tax due in  2013 dollars $   126324   140614     percentage of taxable income= 42.11%    for tax year 1972  percentage of 1954 taxes  89.84%
taxable income in 2013 dollars $    350000     tax due in  2013 dollars $   157699   174075     percentage of taxable income= 45.06%    for tax year 1972  percentage of 1954 taxes  90.59%
taxable income in 2013 dollars $    400000     tax due in  2013 dollars $   189970   209251     percentage of taxable income= 47.49%    for tax year 1972  percentage of 1954 taxes  90.79%
taxable income in 2013 dollars $    450000     tax due in  2013 dollars $   223138   245884     percentage of taxable income= 49.59%    for tax year 1972  percentage of 1954 taxes  90.75%
taxable income in 2013 dollars $    500000     tax due in  2013 dollars $   257169   283384     percentage of taxable income= 51.43%    for tax year 1972  percentage of 1954 taxes  90.75%
taxable income in 2013 dollars $    600000     tax due in  2013 dollars $   326649   360943     percentage of taxable income= 54.44%    for tax year 1972  percentage of 1954 taxes  90.50%
taxable income in 2013 dollars $    700000     tax due in  2013 dollars $   396649   442341     percentage of taxable income= 56.66%    for tax year 1972  percentage of 1954 taxes  89.67%
taxable income in 2013 dollars $    800000     tax due in  2013 dollars $   466649   527179     percentage of taxable income= 58.33%    for tax year 1972  percentage of 1954 taxes  88.52%
taxable income in 2013 dollars $    900000     tax due in  2013 dollars $   536649   615023     percentage of taxable income= 59.63%    for tax year 1972  percentage of 1954 taxes  87.26%
taxable income in 2013 dollars $   1000000     tax due in  2013 dollars $   606649   704023     percentage of taxable income= 60.66%    for tax year 1972  percentage of 1954 taxes  86.17%

1973 tax rate schedule with ORIGINAL dollar figures(for SINGLE taxpayer)
Historical data for the marginal rates was obtained at the Tax Foundation website at [U.S. Federal Individual Income Tax Rates History, 1913-2011 (Nominal and Inflation-Adjusted Brackets)]
Computation of the actual taxes due and the effective overall tax rate at each level were done by Jeff Sagarin.

Not over $    500 ................................... 14.00% of the taxable income      14.00% effective overall tax rate
Over $    500 but not over $   1000    $     70, plus 15.00% of excess over $    500    14.33% effective overall tax rate(computed on tax on middle of income range)
Over $   1000 but not over $   1500    $    145, plus 16.00% of excess over $   1000    14.80% effective overall tax rate(computed on tax on middle of income range)
Over $   1500 but not over $   2000    $    225, plus 17.00% of excess over $   1500    15.29% effective overall tax rate(computed on tax on middle of income range)
Over $   2000 but not over $   4000    $    310, plus 19.00% of excess over $   2000    16.67% effective overall tax rate(computed on tax on middle of income range)
Over $   4000 but not over $   6000    $    690, plus 21.00% of excess over $   4000    18.00% effective overall tax rate(computed on tax on middle of income range)
Over $   6000 but not over $   8000    $   1110, plus 24.00% of excess over $   6000    19.29% effective overall tax rate(computed on tax on middle of income range)
Over $   8000 but not over $  10000    $   1590, plus 25.00% of excess over $   8000    20.44% effective overall tax rate(computed on tax on middle of income range)
Over $  10000 but not over $  12000    $   2090, plus 27.00% of excess over $  10000    21.45% effective overall tax rate(computed on tax on middle of income range)
Over $  12000 but not over $  14000    $   2630, plus 29.00% of excess over $  12000    22.46% effective overall tax rate(computed on tax on middle of income range)
Over $  14000 but not over $  16000    $   3210, plus 31.00% of excess over $  14000    23.47% effective overall tax rate(computed on tax on middle of income range)
Over $  16000 but not over $  18000    $   3830, plus 34.00% of excess over $  16000    24.53% effective overall tax rate(computed on tax on middle of income range)
Over $  18000 but not over $  20000    $   4510, plus 36.00% of excess over $  18000    25.63% effective overall tax rate(computed on tax on middle of income range)
Over $  20000 but not over $  22000    $   5230, plus 38.00% of excess over $  20000    26.71% effective overall tax rate(computed on tax on middle of income range)
Over $  22000 but not over $  26000    $   5990, plus 40.00% of excess over $  22000    28.29% effective overall tax rate(computed on tax on middle of income range)
Over $  26000 but not over $  32000    $   7590, plus 45.00% of excess over $  26000    30.83% effective overall tax rate(computed on tax on middle of income range)
Over $  32000 but not over $  38000    $  10290, plus 50.00% of excess over $  32000    33.69% effective overall tax rate(computed on tax on middle of income range)
Over $  38000 but not over $  44000    $  13290, plus 55.00% of excess over $  38000    36.44% effective overall tax rate(computed on tax on middle of income range)
Over $  44000 but not over $  50000    $  16590, plus 60.00% of excess over $  44000    39.13% effective overall tax rate(computed on tax on middle of income range)
Over $  50000 but not over $  60000    $  20190, plus 62.00% of excess over $  50000    42.35% effective overall tax rate(computed on tax on middle of income range)
Over $  60000 but not over $  70000    $  26390, plus 64.00% of excess over $  60000    45.52% effective overall tax rate(computed on tax on middle of income range)
Over $  70000 but not over $  80000    $  32790, plus 66.00% of excess over $  70000    48.12% effective overall tax rate(computed on tax on middle of income range)
Over $  80000 but not over $  90000    $  39390, plus 68.00% of excess over $  80000    50.34% effective overall tax rate(computed on tax on middle of income range)
Over $  90000 but not over $ 100000    $  46190, plus 69.00% of excess over $  90000    52.25% effective overall tax rate(computed on tax on middle of income range)
Over $ 100000 ........................ $  53090, plus 70.00% of excess over $ 100000    53.09% <=> 70.00% effective overall tax rate as income goes to infinity
1973 tax rate schedule with figures INFLATION-ADJUSTED to 2013 dollars(for SINGLE taxpayer) ... the multiplier is 5.197207207 based on the average of the last 12 monthly figures through and including April 2013 released in mid-May 2013)
Inflation multiplier was determined from Bureau of Labor Statistics at [CPI Inflation Calculator | Historical Consumer Price Index]
Computation of the actual taxes due and the effective overall tax rate at each level were done by Jeff Sagarin.

Not over $   2599 ................................... 14.00% of the taxable income      14.00% effective overall tax rate
Over $   2599 but not over $   5197    $    364, plus 15.00% of excess over $   2599    14.33% effective overall tax rate(computed on tax on middle of income range)
Over $   5197 but not over $   7796    $    754, plus 16.00% of excess over $   5197    14.80% effective overall tax rate(computed on tax on middle of income range)
Over $   7796 but not over $  10394    $   1169, plus 17.00% of excess over $   7796    15.29% effective overall tax rate(computed on tax on middle of income range)
Over $  10394 but not over $  20789    $   1611, plus 19.00% of excess over $  10394    16.67% effective overall tax rate(computed on tax on middle of income range)
Over $  20789 but not over $  31183    $   3586, plus 21.00% of excess over $  20789    18.00% effective overall tax rate(computed on tax on middle of income range)
Over $  31183 but not over $  41578    $   5769, plus 24.00% of excess over $  31183    19.29% effective overall tax rate(computed on tax on middle of income range)
Over $  41578 but not over $  51972    $   8264, plus 25.00% of excess over $  41578    20.44% effective overall tax rate(computed on tax on middle of income range)
Over $  51972 but not over $  62366    $  10862, plus 27.00% of excess over $  51972    21.45% effective overall tax rate(computed on tax on middle of income range)
Over $  62366 but not over $  72761    $  13669, plus 29.00% of excess over $  62366    22.46% effective overall tax rate(computed on tax on middle of income range)
Over $  72761 but not over $  83155    $  16683, plus 31.00% of excess over $  72761    23.47% effective overall tax rate(computed on tax on middle of income range)
Over $  83155 but not over $  93550    $  19905, plus 34.00% of excess over $  83155    24.53% effective overall tax rate(computed on tax on middle of income range)
Over $  93550 but not over $ 103944    $  23439, plus 36.00% of excess over $  93550    25.63% effective overall tax rate(computed on tax on middle of income range)
Over $ 103944 but not over $ 114339    $  27181, plus 38.00% of excess over $ 103944    26.71% effective overall tax rate(computed on tax on middle of income range)
Over $ 114339 but not over $ 135127    $  31131, plus 40.00% of excess over $ 114339    28.29% effective overall tax rate(computed on tax on middle of income range)
Over $ 135127 but not over $ 166311    $  39447, plus 45.00% of excess over $ 135127    30.83% effective overall tax rate(computed on tax on middle of income range)
Over $ 166311 but not over $ 197494    $  53479, plus 50.00% of excess over $ 166311    33.69% effective overall tax rate(computed on tax on middle of income range)
Over $ 197494 but not over $ 228677    $  69071, plus 55.00% of excess over $ 197494    36.44% effective overall tax rate(computed on tax on middle of income range)
Over $ 228677 but not over $ 259860    $  86222, plus 60.00% of excess over $ 228677    39.13% effective overall tax rate(computed on tax on middle of income range)
Over $ 259860 but not over $ 311832    $ 104932, plus 62.00% of excess over $ 259860    42.35% effective overall tax rate(computed on tax on middle of income range)
Over $ 311832 but not over $ 363805    $ 137154, plus 64.00% of excess over $ 311832    45.52% effective overall tax rate(computed on tax on middle of income range)
Over $ 363805 but not over $ 415777    $ 170416, plus 66.00% of excess over $ 363805    48.12% effective overall tax rate(computed on tax on middle of income range)
Over $ 415777 but not over $ 467749    $ 204718, plus 68.00% of excess over $ 415777    50.34% effective overall tax rate(computed on tax on middle of income range)
Over $ 467749 but not over $ 519721    $ 240059, plus 69.00% of excess over $ 467749    52.25% effective overall tax rate(computed on tax on middle of income range)
Over $ 519721 ........................ $ 275920, plus 70.00% of excess over $ 519721    53.09% <=> 70.00% effective overall tax rate as income goes to infinity
                                                                              1973     1954                                               using exact decimal values of taxes (not integers)
                                                                              ____     ____
taxable income in 2013 dollars $     10000     tax due in  2013 dollars $     1544     2000     percentage of taxable income= 15.44%    for tax year 1973  percentage of 1954 taxes  77.20%
taxable income in 2013 dollars $     20000     tax due in  2013 dollars $     3436     4057     percentage of taxable income= 17.18%    for tax year 1973  percentage of 1954 taxes  84.70%
taxable income in 2013 dollars $     30000     tax due in  2013 dollars $     5520     6257     percentage of taxable income= 18.40%    for tax year 1973  percentage of 1954 taxes  88.23%
taxable income in 2013 dollars $     40000     tax due in  2013 dollars $     7885     8684     percentage of taxable income= 19.71%    for tax year 1973  percentage of 1954 taxes  90.79%
taxable income in 2013 dollars $     50000     tax due in  2013 dollars $    10369    11284     percentage of taxable income= 20.74%    for tax year 1973  percentage of 1954 taxes  91.89%
taxable income in 2013 dollars $     60000     tax due in  2013 dollars $    13030    14226     percentage of taxable income= 21.72%    for tax year 1973  percentage of 1954 taxes  91.59%
taxable income in 2013 dollars $     70000     tax due in  2013 dollars $    15882    17280     percentage of taxable income= 22.69%    for tax year 1973  percentage of 1954 taxes  91.91%
taxable income in 2013 dollars $     80000     tax due in  2013 dollars $    18927    20680     percentage of taxable income= 23.66%    for tax year 1973  percentage of 1954 taxes  91.52%
taxable income in 2013 dollars $     90000     tax due in  2013 dollars $    22232    24249     percentage of taxable income= 24.70%    for tax year 1973  percentage of 1954 taxes  91.68%
taxable income in 2013 dollars $    100000     tax due in  2013 dollars $    25762    28049     percentage of taxable income= 25.76%    for tax year 1973  percentage of 1954 taxes  91.84%
taxable income in 2013 dollars $    150000     tax due in  2013 dollars $    46139    50981     percentage of taxable income= 30.76%    for tax year 1973  percentage of 1954 taxes  90.50%
taxable income in 2013 dollars $    200000     tax due in  2013 dollars $    70449    78540     percentage of taxable income= 35.22%    for tax year 1973  percentage of 1954 taxes  89.70%
taxable income in 2013 dollars $    250000     tax due in  2013 dollars $    99015   108849     percentage of taxable income= 39.61%    for tax year 1973  percentage of 1954 taxes  90.97%
taxable income in 2013 dollars $    300000     tax due in  2013 dollars $   129818   140614     percentage of taxable income= 43.27%    for tax year 1973  percentage of 1954 taxes  92.32%
taxable income in 2013 dollars $    350000     tax due in  2013 dollars $   161582   174075     percentage of taxable income= 46.17%    for tax year 1973  percentage of 1954 taxes  92.82%
taxable income in 2013 dollars $    400000     tax due in  2013 dollars $   194305   209251     percentage of taxable income= 48.58%    for tax year 1973  percentage of 1954 taxes  92.86%
taxable income in 2013 dollars $    450000     tax due in  2013 dollars $   227990   245884     percentage of taxable income= 50.66%    for tax year 1973  percentage of 1954 taxes  92.72%
taxable income in 2013 dollars $    500000     tax due in  2013 dollars $   262312   283384     percentage of taxable income= 52.46%    for tax year 1973  percentage of 1954 taxes  92.56%
taxable income in 2013 dollars $    600000     tax due in  2013 dollars $   332115   360943     percentage of taxable income= 55.35%    for tax year 1973  percentage of 1954 taxes  92.01%
taxable income in 2013 dollars $    700000     tax due in  2013 dollars $   402115   442341     percentage of taxable income= 57.45%    for tax year 1973  percentage of 1954 taxes  90.91%
taxable income in 2013 dollars $    800000     tax due in  2013 dollars $   472115   527179     percentage of taxable income= 59.01%    for tax year 1973  percentage of 1954 taxes  89.55%
taxable income in 2013 dollars $    900000     tax due in  2013 dollars $   542115   615023     percentage of taxable income= 60.24%    for tax year 1973  percentage of 1954 taxes  88.15%
taxable income in 2013 dollars $   1000000     tax due in  2013 dollars $   612115   704023     percentage of taxable income= 61.21%    for tax year 1973  percentage of 1954 taxes  86.95%

1974 tax rate schedule with ORIGINAL dollar figures(for SINGLE taxpayer)
Historical data for the marginal rates was obtained at the Tax Foundation website at [U.S. Federal Individual Income Tax Rates History, 1913-2011 (Nominal and Inflation-Adjusted Brackets)]
Computation of the actual taxes due and the effective overall tax rate at each level were done by Jeff Sagarin.

Not over $    500 ................................... 14.00% of the taxable income      14.00% effective overall tax rate
Over $    500 but not over $   1000    $     70, plus 15.00% of excess over $    500    14.33% effective overall tax rate(computed on tax on middle of income range)
Over $   1000 but not over $   1500    $    145, plus 16.00% of excess over $   1000    14.80% effective overall tax rate(computed on tax on middle of income range)
Over $   1500 but not over $   2000    $    225, plus 17.00% of excess over $   1500    15.29% effective overall tax rate(computed on tax on middle of income range)
Over $   2000 but not over $   4000    $    310, plus 19.00% of excess over $   2000    16.67% effective overall tax rate(computed on tax on middle of income range)
Over $   4000 but not over $   6000    $    690, plus 21.00% of excess over $   4000    18.00% effective overall tax rate(computed on tax on middle of income range)
Over $   6000 but not over $   8000    $   1110, plus 24.00% of excess over $   6000    19.29% effective overall tax rate(computed on tax on middle of income range)
Over $   8000 but not over $  10000    $   1590, plus 25.00% of excess over $   8000    20.44% effective overall tax rate(computed on tax on middle of income range)
Over $  10000 but not over $  12000    $   2090, plus 27.00% of excess over $  10000    21.45% effective overall tax rate(computed on tax on middle of income range)
Over $  12000 but not over $  14000    $   2630, plus 29.00% of excess over $  12000    22.46% effective overall tax rate(computed on tax on middle of income range)
Over $  14000 but not over $  16000    $   3210, plus 31.00% of excess over $  14000    23.47% effective overall tax rate(computed on tax on middle of income range)
Over $  16000 but not over $  18000    $   3830, plus 34.00% of excess over $  16000    24.53% effective overall tax rate(computed on tax on middle of income range)
Over $  18000 but not over $  20000    $   4510, plus 36.00% of excess over $  18000    25.63% effective overall tax rate(computed on tax on middle of income range)
Over $  20000 but not over $  22000    $   5230, plus 38.00% of excess over $  20000    26.71% effective overall tax rate(computed on tax on middle of income range)
Over $  22000 but not over $  26000    $   5990, plus 40.00% of excess over $  22000    28.29% effective overall tax rate(computed on tax on middle of income range)
Over $  26000 but not over $  32000    $   7590, plus 45.00% of excess over $  26000    30.83% effective overall tax rate(computed on tax on middle of income range)
Over $  32000 but not over $  38000    $  10290, plus 50.00% of excess over $  32000    33.69% effective overall tax rate(computed on tax on middle of income range)
Over $  38000 but not over $  44000    $  13290, plus 55.00% of excess over $  38000    36.44% effective overall tax rate(computed on tax on middle of income range)
Over $  44000 but not over $  50000    $  16590, plus 60.00% of excess over $  44000    39.13% effective overall tax rate(computed on tax on middle of income range)
Over $  50000 but not over $  60000    $  20190, plus 62.00% of excess over $  50000    42.35% effective overall tax rate(computed on tax on middle of income range)
Over $  60000 but not over $  70000    $  26390, plus 64.00% of excess over $  60000    45.52% effective overall tax rate(computed on tax on middle of income range)
Over $  70000 but not over $  80000    $  32790, plus 66.00% of excess over $  70000    48.12% effective overall tax rate(computed on tax on middle of income range)
Over $  80000 but not over $  90000    $  39390, plus 68.00% of excess over $  80000    50.34% effective overall tax rate(computed on tax on middle of income range)
Over $  90000 but not over $ 100000    $  46190, plus 69.00% of excess over $  90000    52.25% effective overall tax rate(computed on tax on middle of income range)
Over $ 100000 ........................ $  53090, plus 70.00% of excess over $ 100000    53.09% <=> 70.00% effective overall tax rate as income goes to infinity
1974 tax rate schedule with figures INFLATION-ADJUSTED to 2013 dollars(for SINGLE taxpayer) ... the multiplier is 4.680649087 based on the average of the last 12 monthly figures through and including April 2013 released in mid-May 2013)
Inflation multiplier was determined from Bureau of Labor Statistics at [CPI Inflation Calculator | Historical Consumer Price Index]
Computation of the actual taxes due and the effective overall tax rate at each level were done by Jeff Sagarin.

Not over $   2340 ................................... 14.00% of the taxable income      14.00% effective overall tax rate
Over $   2340 but not over $   4681    $    328, plus 15.00% of excess over $   2340    14.33% effective overall tax rate(computed on tax on middle of income range)
Over $   4681 but not over $   7021    $    679, plus 16.00% of excess over $   4681    14.80% effective overall tax rate(computed on tax on middle of income range)
Over $   7021 but not over $   9361    $   1053, plus 17.00% of excess over $   7021    15.29% effective overall tax rate(computed on tax on middle of income range)
Over $   9361 but not over $  18723    $   1451, plus 19.00% of excess over $   9361    16.67% effective overall tax rate(computed on tax on middle of income range)
Over $  18723 but not over $  28084    $   3230, plus 21.00% of excess over $  18723    18.00% effective overall tax rate(computed on tax on middle of income range)
Over $  28084 but not over $  37445    $   5196, plus 24.00% of excess over $  28084    19.29% effective overall tax rate(computed on tax on middle of income range)
Over $  37445 but not over $  46806    $   7442, plus 25.00% of excess over $  37445    20.44% effective overall tax rate(computed on tax on middle of income range)
Over $  46806 but not over $  56168    $   9783, plus 27.00% of excess over $  46806    21.45% effective overall tax rate(computed on tax on middle of income range)
Over $  56168 but not over $  65529    $  12310, plus 29.00% of excess over $  56168    22.46% effective overall tax rate(computed on tax on middle of income range)
Over $  65529 but not over $  74890    $  15025, plus 31.00% of excess over $  65529    23.47% effective overall tax rate(computed on tax on middle of income range)
Over $  74890 but not over $  84252    $  17927, plus 34.00% of excess over $  74890    24.53% effective overall tax rate(computed on tax on middle of income range)
Over $  84252 but not over $  93613    $  21110, plus 36.00% of excess over $  84252    25.63% effective overall tax rate(computed on tax on middle of income range)
Over $  93613 but not over $ 102974    $  24480, plus 38.00% of excess over $  93613    26.71% effective overall tax rate(computed on tax on middle of income range)
Over $ 102974 but not over $ 121697    $  28037, plus 40.00% of excess over $ 102974    28.29% effective overall tax rate(computed on tax on middle of income range)
Over $ 121697 but not over $ 149781    $  35526, plus 45.00% of excess over $ 121697    30.83% effective overall tax rate(computed on tax on middle of income range)
Over $ 149781 but not over $ 177865    $  48164, plus 50.00% of excess over $ 149781    33.69% effective overall tax rate(computed on tax on middle of income range)
Over $ 177865 but not over $ 205949    $  62206, plus 55.00% of excess over $ 177865    36.44% effective overall tax rate(computed on tax on middle of income range)
Over $ 205949 but not over $ 234032    $  77652, plus 60.00% of excess over $ 205949    39.13% effective overall tax rate(computed on tax on middle of income range)
Over $ 234032 but not over $ 280839    $  94502, plus 62.00% of excess over $ 234032    42.35% effective overall tax rate(computed on tax on middle of income range)
Over $ 280839 but not over $ 327645    $ 123522, plus 64.00% of excess over $ 280839    45.52% effective overall tax rate(computed on tax on middle of income range)
Over $ 327645 but not over $ 374452    $ 153478, plus 66.00% of excess over $ 327645    48.12% effective overall tax rate(computed on tax on middle of income range)
Over $ 374452 but not over $ 421258    $ 184371, plus 68.00% of excess over $ 374452    50.34% effective overall tax rate(computed on tax on middle of income range)
Over $ 421258 but not over $ 468065    $ 216199, plus 69.00% of excess over $ 421258    52.25% effective overall tax rate(computed on tax on middle of income range)
Over $ 468065 ........................ $ 248496, plus 70.00% of excess over $ 468065    53.09% <=> 70.00% effective overall tax rate as income goes to infinity
                                                                              1974     1954                                               using exact decimal values of taxes (not integers)
                                                                              ____     ____
taxable income in 2013 dollars $     10000     tax due in  2013 dollars $     1572     2000     percentage of taxable income= 15.72%    for tax year 1974  percentage of 1954 taxes  78.62%
taxable income in 2013 dollars $     20000     tax due in  2013 dollars $     3498     4057     percentage of taxable income= 17.49%    for tax year 1974  percentage of 1954 taxes  86.22%
taxable income in 2013 dollars $     30000     tax due in  2013 dollars $     5655     6257     percentage of taxable income= 18.85%    for tax year 1974  percentage of 1954 taxes  90.39%
taxable income in 2013 dollars $     40000     tax due in  2013 dollars $     8081     8684     percentage of taxable income= 20.20%    for tax year 1974  percentage of 1954 taxes  93.05%
taxable income in 2013 dollars $     50000     tax due in  2013 dollars $    10645    11284     percentage of taxable income= 21.29%    for tax year 1974  percentage of 1954 taxes  94.33%
taxable income in 2013 dollars $     60000     tax due in  2013 dollars $    13421    14226     percentage of taxable income= 22.37%    for tax year 1974  percentage of 1954 taxes  94.35%
taxable income in 2013 dollars $     70000     tax due in  2013 dollars $    16411    17280     percentage of taxable income= 23.44%    for tax year 1974  percentage of 1954 taxes  94.97%
taxable income in 2013 dollars $     80000     tax due in  2013 dollars $    19664    20680     percentage of taxable income= 24.58%    for tax year 1974  percentage of 1954 taxes  95.09%
taxable income in 2013 dollars $     90000     tax due in  2013 dollars $    23179    24249     percentage of taxable income= 25.75%    for tax year 1974  percentage of 1954 taxes  95.59%
taxable income in 2013 dollars $    100000     tax due in  2013 dollars $    26907    28049     percentage of taxable income= 26.91%    for tax year 1974  percentage of 1954 taxes  95.93%
taxable income in 2013 dollars $    150000     tax due in  2013 dollars $    48273    50981     percentage of taxable income= 32.18%    for tax year 1974  percentage of 1954 taxes  94.69%
taxable income in 2013 dollars $    200000     tax due in  2013 dollars $    74380    78540     percentage of taxable income= 37.19%    for tax year 1974  percentage of 1954 taxes  94.70%
taxable income in 2013 dollars $    250000     tax due in  2013 dollars $   104402   108849     percentage of taxable income= 41.76%    for tax year 1974  percentage of 1954 taxes  95.91%
taxable income in 2013 dollars $    300000     tax due in  2013 dollars $   135785   140614     percentage of taxable income= 45.26%    for tax year 1974  percentage of 1954 taxes  96.57%
taxable income in 2013 dollars $    350000     tax due in  2013 dollars $   168232   174075     percentage of taxable income= 48.07%    for tax year 1974  percentage of 1954 taxes  96.64%
taxable income in 2013 dollars $    400000     tax due in  2013 dollars $   201743   209251     percentage of taxable income= 50.44%    for tax year 1974  percentage of 1954 taxes  96.41%
taxable income in 2013 dollars $    450000     tax due in  2013 dollars $   236031   245884     percentage of taxable income= 52.45%    for tax year 1974  percentage of 1954 taxes  95.99%
taxable income in 2013 dollars $    500000     tax due in  2013 dollars $   270850   283384     percentage of taxable income= 54.17%    for tax year 1974  percentage of 1954 taxes  95.58%
taxable income in 2013 dollars $    600000     tax due in  2013 dollars $   340850   360943     percentage of taxable income= 56.81%    for tax year 1974  percentage of 1954 taxes  94.43%
taxable income in 2013 dollars $    700000     tax due in  2013 dollars $   410850   442341     percentage of taxable income= 58.69%    for tax year 1974  percentage of 1954 taxes  92.88%
taxable income in 2013 dollars $    800000     tax due in  2013 dollars $   480850   527179     percentage of taxable income= 60.11%    for tax year 1974  percentage of 1954 taxes  91.21%
taxable income in 2013 dollars $    900000     tax due in  2013 dollars $   550850   615023     percentage of taxable income= 61.21%    for tax year 1974  percentage of 1954 taxes  89.57%
taxable income in 2013 dollars $   1000000     tax due in  2013 dollars $   620850   704023     percentage of taxable income= 62.09%    for tax year 1974  percentage of 1954 taxes  88.19%

1975 tax rate schedule with ORIGINAL dollar figures(for SINGLE taxpayer)
Historical data for the marginal rates was obtained at the Tax Foundation website at [U.S. Federal Individual Income Tax Rates History, 1913-2011 (Nominal and Inflation-Adjusted Brackets)]
Computation of the actual taxes due and the effective overall tax rate at each level were done by Jeff Sagarin.

Not over $    500 ................................... 14.00% of the taxable income      14.00% effective overall tax rate
Over $    500 but not over $   1000    $     70, plus 15.00% of excess over $    500    14.33% effective overall tax rate(computed on tax on middle of income range)
Over $   1000 but not over $   1500    $    145, plus 16.00% of excess over $   1000    14.80% effective overall tax rate(computed on tax on middle of income range)
Over $   1500 but not over $   2000    $    225, plus 17.00% of excess over $   1500    15.29% effective overall tax rate(computed on tax on middle of income range)
Over $   2000 but not over $   4000    $    310, plus 19.00% of excess over $   2000    16.67% effective overall tax rate(computed on tax on middle of income range)
Over $   4000 but not over $   6000    $    690, plus 21.00% of excess over $   4000    18.00% effective overall tax rate(computed on tax on middle of income range)
Over $   6000 but not over $   8000    $   1110, plus 24.00% of excess over $   6000    19.29% effective overall tax rate(computed on tax on middle of income range)
Over $   8000 but not over $  10000    $   1590, plus 25.00% of excess over $   8000    20.44% effective overall tax rate(computed on tax on middle of income range)
Over $  10000 but not over $  12000    $   2090, plus 27.00% of excess over $  10000    21.45% effective overall tax rate(computed on tax on middle of income range)
Over $  12000 but not over $  14000    $   2630, plus 29.00% of excess over $  12000    22.46% effective overall tax rate(computed on tax on middle of income range)
Over $  14000 but not over $  16000    $   3210, plus 31.00% of excess over $  14000    23.47% effective overall tax rate(computed on tax on middle of income range)
Over $  16000 but not over $  18000    $   3830, plus 34.00% of excess over $  16000    24.53% effective overall tax rate(computed on tax on middle of income range)
Over $  18000 but not over $  20000    $   4510, plus 36.00% of excess over $  18000    25.63% effective overall tax rate(computed on tax on middle of income range)
Over $  20000 but not over $  22000    $   5230, plus 38.00% of excess over $  20000    26.71% effective overall tax rate(computed on tax on middle of income range)
Over $  22000 but not over $  26000    $   5990, plus 40.00% of excess over $  22000    28.29% effective overall tax rate(computed on tax on middle of income range)
Over $  26000 but not over $  32000    $   7590, plus 45.00% of excess over $  26000    30.83% effective overall tax rate(computed on tax on middle of income range)
Over $  32000 but not over $  38000    $  10290, plus 50.00% of excess over $  32000    33.69% effective overall tax rate(computed on tax on middle of income range)
Over $  38000 but not over $  44000    $  13290, plus 55.00% of excess over $  38000    36.44% effective overall tax rate(computed on tax on middle of income range)
Over $  44000 but not over $  50000    $  16590, plus 60.00% of excess over $  44000    39.13% effective overall tax rate(computed on tax on middle of income range)
Over $  50000 but not over $  60000    $  20190, plus 62.00% of excess over $  50000    42.35% effective overall tax rate(computed on tax on middle of income range)
Over $  60000 but not over $  70000    $  26390, plus 64.00% of excess over $  60000    45.52% effective overall tax rate(computed on tax on middle of income range)
Over $  70000 but not over $  80000    $  32790, plus 66.00% of excess over $  70000    48.12% effective overall tax rate(computed on tax on middle of income range)
Over $  80000 but not over $  90000    $  39390, plus 68.00% of excess over $  80000    50.34% effective overall tax rate(computed on tax on middle of income range)
Over $  90000 but not over $ 100000    $  46190, plus 69.00% of excess over $  90000    52.25% effective overall tax rate(computed on tax on middle of income range)
Over $ 100000 ........................ $  53090, plus 70.00% of excess over $ 100000    53.09% <=> 70.00% effective overall tax rate as income goes to infinity
1975 tax rate schedule with figures INFLATION-ADJUSTED to 2013 dollars(for SINGLE taxpayer) ... the multiplier is 4.289144982 based on the average of the last 12 monthly figures through and including April 2013 released in mid-May 2013)
Inflation multiplier was determined from Bureau of Labor Statistics at [CPI Inflation Calculator | Historical Consumer Price Index]
Computation of the actual taxes due and the effective overall tax rate at each level were done by Jeff Sagarin.

Not over $   2145 ................................... 14.00% of the taxable income      14.00% effective overall tax rate
Over $   2145 but not over $   4289    $    300, plus 15.00% of excess over $   2145    14.33% effective overall tax rate(computed on tax on middle of income range)
Over $   4289 but not over $   6434    $    622, plus 16.00% of excess over $   4289    14.80% effective overall tax rate(computed on tax on middle of income range)
Over $   6434 but not over $   8578    $    965, plus 17.00% of excess over $   6434    15.29% effective overall tax rate(computed on tax on middle of income range)
Over $   8578 but not over $  17157    $   1330, plus 19.00% of excess over $   8578    16.67% effective overall tax rate(computed on tax on middle of income range)
Over $  17157 but not over $  25735    $   2960, plus 21.00% of excess over $  17157    18.00% effective overall tax rate(computed on tax on middle of income range)
Over $  25735 but not over $  34313    $   4761, plus 24.00% of excess over $  25735    19.29% effective overall tax rate(computed on tax on middle of income range)
Over $  34313 but not over $  42891    $   6820, plus 25.00% of excess over $  34313    20.44% effective overall tax rate(computed on tax on middle of income range)
Over $  42891 but not over $  51470    $   8964, plus 27.00% of excess over $  42891    21.45% effective overall tax rate(computed on tax on middle of income range)
Over $  51470 but not over $  60048    $  11280, plus 29.00% of excess over $  51470    22.46% effective overall tax rate(computed on tax on middle of income range)
Over $  60048 but not over $  68626    $  13768, plus 31.00% of excess over $  60048    23.47% effective overall tax rate(computed on tax on middle of income range)
Over $  68626 but not over $  77205    $  16427, plus 34.00% of excess over $  68626    24.53% effective overall tax rate(computed on tax on middle of income range)
Over $  77205 but not over $  85783    $  19344, plus 36.00% of excess over $  77205    25.63% effective overall tax rate(computed on tax on middle of income range)
Over $  85783 but not over $  94361    $  22432, plus 38.00% of excess over $  85783    26.71% effective overall tax rate(computed on tax on middle of income range)
Over $  94361 but not over $ 111518    $  25692, plus 40.00% of excess over $  94361    28.29% effective overall tax rate(computed on tax on middle of income range)
Over $ 111518 but not over $ 137253    $  32555, plus 45.00% of excess over $ 111518    30.83% effective overall tax rate(computed on tax on middle of income range)
Over $ 137253 but not over $ 162988    $  44135, plus 50.00% of excess over $ 137253    33.69% effective overall tax rate(computed on tax on middle of income range)
Over $ 162988 but not over $ 188722    $  57003, plus 55.00% of excess over $ 162988    36.44% effective overall tax rate(computed on tax on middle of income range)
Over $ 188722 but not over $ 214457    $  71157, plus 60.00% of excess over $ 188722    39.13% effective overall tax rate(computed on tax on middle of income range)
Over $ 214457 but not over $ 257349    $  86598, plus 62.00% of excess over $ 214457    42.35% effective overall tax rate(computed on tax on middle of income range)
Over $ 257349 but not over $ 300240    $ 113191, plus 64.00% of excess over $ 257349    45.52% effective overall tax rate(computed on tax on middle of income range)
Over $ 300240 but not over $ 343132    $ 140641, plus 66.00% of excess over $ 300240    48.12% effective overall tax rate(computed on tax on middle of income range)
Over $ 343132 but not over $ 386023    $ 168949, plus 68.00% of excess over $ 343132    50.34% effective overall tax rate(computed on tax on middle of income range)
Over $ 386023 but not over $ 428914    $ 198116, plus 69.00% of excess over $ 386023    52.25% effective overall tax rate(computed on tax on middle of income range)
Over $ 428914 ........................ $ 227711, plus 70.00% of excess over $ 428914    53.09% <=> 70.00% effective overall tax rate as income goes to infinity
                                                                              1975     1954                                               using exact decimal values of taxes (not integers)
                                                                              ____     ____
taxable income in 2013 dollars $     10000     tax due in  2013 dollars $     1600     2000     percentage of taxable income= 16.00%    for tax year 1975  percentage of 1954 taxes  79.99%
taxable income in 2013 dollars $     20000     tax due in  2013 dollars $     3557     4057     percentage of taxable income= 17.78%    for tax year 1975  percentage of 1954 taxes  87.67%
taxable income in 2013 dollars $     30000     tax due in  2013 dollars $     5785     6257     percentage of taxable income= 19.28%    for tax year 1975  percentage of 1954 taxes  92.45%
taxable income in 2013 dollars $     40000     tax due in  2013 dollars $     8241     8684     percentage of taxable income= 20.60%    for tax year 1975  percentage of 1954 taxes  94.90%
taxable income in 2013 dollars $     50000     tax due in  2013 dollars $    10884    11284     percentage of taxable income= 21.77%    for tax year 1975  percentage of 1954 taxes  96.45%
taxable income in 2013 dollars $     60000     tax due in  2013 dollars $    13754    14226     percentage of taxable income= 22.92%    for tax year 1975  percentage of 1954 taxes  96.69%
taxable income in 2013 dollars $     70000     tax due in  2013 dollars $    16894    17280     percentage of taxable income= 24.13%    for tax year 1975  percentage of 1954 taxes  97.77%
taxable income in 2013 dollars $     80000     tax due in  2013 dollars $    20350    20680     percentage of taxable income= 25.44%    for tax year 1975  percentage of 1954 taxes  98.40%
taxable income in 2013 dollars $     90000     tax due in  2013 dollars $    24035    24249     percentage of taxable income= 26.71%    for tax year 1975  percentage of 1954 taxes  99.12%
taxable income in 2013 dollars $    100000     tax due in  2013 dollars $    27948    28049     percentage of taxable income= 27.95%    for tax year 1975  percentage of 1954 taxes  99.64%
taxable income in 2013 dollars $    150000     tax due in  2013 dollars $    50509    50981     percentage of taxable income= 33.67%    for tax year 1975  percentage of 1954 taxes  99.07%
taxable income in 2013 dollars $    200000     tax due in  2013 dollars $    77923    78540     percentage of taxable income= 38.96%    for tax year 1975  percentage of 1954 taxes  99.22%
taxable income in 2013 dollars $    250000     tax due in  2013 dollars $   108634   108849     percentage of taxable income= 43.45%    for tax year 1975  percentage of 1954 taxes  99.80%
taxable income in 2013 dollars $    300000     tax due in  2013 dollars $   140487   140614     percentage of taxable income= 46.83%    for tax year 1975  percentage of 1954 taxes  99.91%
taxable income in 2013 dollars $    350000     tax due in  2013 dollars $   173620   174075     percentage of taxable income= 49.61%    for tax year 1975  percentage of 1954 taxes  99.74%
taxable income in 2013 dollars $    400000     tax due in  2013 dollars $   207760   209251     percentage of taxable income= 51.94%    for tax year 1975  percentage of 1954 taxes  99.29%
taxable income in 2013 dollars $    450000     tax due in  2013 dollars $   242471   245884     percentage of taxable income= 53.88%    for tax year 1975  percentage of 1954 taxes  98.61%
taxable income in 2013 dollars $    500000     tax due in  2013 dollars $   277471   283384     percentage of taxable income= 55.49%    for tax year 1975  percentage of 1954 taxes  97.91%
taxable income in 2013 dollars $    600000     tax due in  2013 dollars $   347471   360943     percentage of taxable income= 57.91%    for tax year 1975  percentage of 1954 taxes  96.27%
taxable income in 2013 dollars $    700000     tax due in  2013 dollars $   417471   442341     percentage of taxable income= 59.64%    for tax year 1975  percentage of 1954 taxes  94.38%
taxable income in 2013 dollars $    800000     tax due in  2013 dollars $   487471   527179     percentage of taxable income= 60.93%    for tax year 1975  percentage of 1954 taxes  92.47%
taxable income in 2013 dollars $    900000     tax due in  2013 dollars $   557471   615023     percentage of taxable income= 61.94%    for tax year 1975  percentage of 1954 taxes  90.64%
taxable income in 2013 dollars $   1000000     tax due in  2013 dollars $   627471   704023     percentage of taxable income= 62.75%    for tax year 1975  percentage of 1954 taxes  89.13%

1976 tax rate schedule with ORIGINAL dollar figures(for SINGLE taxpayer)
Historical data for the marginal rates was obtained at the Tax Foundation website at [U.S. Federal Individual Income Tax Rates History, 1913-2011 (Nominal and Inflation-Adjusted Brackets)]
Computation of the actual taxes due and the effective overall tax rate at each level were done by Jeff Sagarin.

Not over $    500 ................................... 14.00% of the taxable income      14.00% effective overall tax rate
Over $    500 but not over $   1000    $     70, plus 15.00% of excess over $    500    14.33% effective overall tax rate(computed on tax on middle of income range)
Over $   1000 but not over $   1500    $    145, plus 16.00% of excess over $   1000    14.80% effective overall tax rate(computed on tax on middle of income range)
Over $   1500 but not over $   2000    $    225, plus 17.00% of excess over $   1500    15.29% effective overall tax rate(computed on tax on middle of income range)
Over $   2000 but not over $   4000    $    310, plus 19.00% of excess over $   2000    16.67% effective overall tax rate(computed on tax on middle of income range)
Over $   4000 but not over $   6000    $    690, plus 21.00% of excess over $   4000    18.00% effective overall tax rate(computed on tax on middle of income range)
Over $   6000 but not over $   8000    $   1110, plus 24.00% of excess over $   6000    19.29% effective overall tax rate(computed on tax on middle of income range)
Over $   8000 but not over $  10000    $   1590, plus 25.00% of excess over $   8000    20.44% effective overall tax rate(computed on tax on middle of income range)
Over $  10000 but not over $  12000    $   2090, plus 27.00% of excess over $  10000    21.45% effective overall tax rate(computed on tax on middle of income range)
Over $  12000 but not over $  14000    $   2630, plus 29.00% of excess over $  12000    22.46% effective overall tax rate(computed on tax on middle of income range)
Over $  14000 but not over $  16000    $   3210, plus 31.00% of excess over $  14000    23.47% effective overall tax rate(computed on tax on middle of income range)
Over $  16000 but not over $  18000    $   3830, plus 34.00% of excess over $  16000    24.53% effective overall tax rate(computed on tax on middle of income range)
Over $  18000 but not over $  20000    $   4510, plus 36.00% of excess over $  18000    25.63% effective overall tax rate(computed on tax on middle of income range)
Over $  20000 but not over $  22000    $   5230, plus 38.00% of excess over $  20000    26.71% effective overall tax rate(computed on tax on middle of income range)
Over $  22000 but not over $  26000    $   5990, plus 40.00% of excess over $  22000    28.29% effective overall tax rate(computed on tax on middle of income range)
Over $  26000 but not over $  32000    $   7590, plus 45.00% of excess over $  26000    30.83% effective overall tax rate(computed on tax on middle of income range)
Over $  32000 but not over $  38000    $  10290, plus 50.00% of excess over $  32000    33.69% effective overall tax rate(computed on tax on middle of income range)
Over $  38000 but not over $  44000    $  13290, plus 55.00% of excess over $  38000    36.44% effective overall tax rate(computed on tax on middle of income range)
Over $  44000 but not over $  50000    $  16590, plus 60.00% of excess over $  44000    39.13% effective overall tax rate(computed on tax on middle of income range)
Over $  50000 but not over $  60000    $  20190, plus 62.00% of excess over $  50000    42.35% effective overall tax rate(computed on tax on middle of income range)
Over $  60000 but not over $  70000    $  26390, plus 64.00% of excess over $  60000    45.52% effective overall tax rate(computed on tax on middle of income range)
Over $  70000 but not over $  80000    $  32790, plus 66.00% of excess over $  70000    48.12% effective overall tax rate(computed on tax on middle of income range)
Over $  80000 but not over $  90000    $  39390, plus 68.00% of excess over $  80000    50.34% effective overall tax rate(computed on tax on middle of income range)
Over $  90000 but not over $ 100000    $  46190, plus 69.00% of excess over $  90000    52.25% effective overall tax rate(computed on tax on middle of income range)
Over $ 100000 ........................ $  53090, plus 70.00% of excess over $ 100000    53.09% <=> 70.00% effective overall tax rate as income goes to infinity
1976 tax rate schedule with figures INFLATION-ADJUSTED to 2013 dollars(for SINGLE taxpayer) ... the multiplier is 4.055465729 based on the average of the last 12 monthly figures through and including April 2013 released in mid-May 2013)
Inflation multiplier was determined from Bureau of Labor Statistics at [CPI Inflation Calculator | Historical Consumer Price Index]
Computation of the actual taxes due and the effective overall tax rate at each level were done by Jeff Sagarin.

Not over $   2028 ................................... 14.00% of the taxable income      14.00% effective overall tax rate
Over $   2028 but not over $   4055    $    284, plus 15.00% of excess over $   2028    14.33% effective overall tax rate(computed on tax on middle of income range)
Over $   4055 but not over $   6083    $    588, plus 16.00% of excess over $   4055    14.80% effective overall tax rate(computed on tax on middle of income range)
Over $   6083 but not over $   8111    $    912, plus 17.00% of excess over $   6083    15.29% effective overall tax rate(computed on tax on middle of income range)
Over $   8111 but not over $  16222    $   1257, plus 19.00% of excess over $   8111    16.67% effective overall tax rate(computed on tax on middle of income range)
Over $  16222 but not over $  24333    $   2798, plus 21.00% of excess over $  16222    18.00% effective overall tax rate(computed on tax on middle of income range)
Over $  24333 but not over $  32444    $   4502, plus 24.00% of excess over $  24333    19.29% effective overall tax rate(computed on tax on middle of income range)
Over $  32444 but not over $  40555    $   6448, plus 25.00% of excess over $  32444    20.44% effective overall tax rate(computed on tax on middle of income range)
Over $  40555 but not over $  48666    $   8476, plus 27.00% of excess over $  40555    21.45% effective overall tax rate(computed on tax on middle of income range)
Over $  48666 but not over $  56777    $  10666, plus 29.00% of excess over $  48666    22.46% effective overall tax rate(computed on tax on middle of income range)
Over $  56777 but not over $  64887    $  13018, plus 31.00% of excess over $  56777    23.47% effective overall tax rate(computed on tax on middle of income range)
Over $  64887 but not over $  72998    $  15532, plus 34.00% of excess over $  64887    24.53% effective overall tax rate(computed on tax on middle of income range)
Over $  72998 but not over $  81109    $  18290, plus 36.00% of excess over $  72998    25.63% effective overall tax rate(computed on tax on middle of income range)
Over $  81109 but not over $  89220    $  21210, plus 38.00% of excess over $  81109    26.71% effective overall tax rate(computed on tax on middle of income range)
Over $  89220 but not over $ 105442    $  24292, plus 40.00% of excess over $  89220    28.29% effective overall tax rate(computed on tax on middle of income range)
Over $ 105442 but not over $ 129775    $  30781, plus 45.00% of excess over $ 105442    30.83% effective overall tax rate(computed on tax on middle of income range)
Over $ 129775 but not over $ 154108    $  41731, plus 50.00% of excess over $ 129775    33.69% effective overall tax rate(computed on tax on middle of income range)
Over $ 154108 but not over $ 178440    $  53897, plus 55.00% of excess over $ 154108    36.44% effective overall tax rate(computed on tax on middle of income range)
Over $ 178440 but not over $ 202773    $  67280, plus 60.00% of excess over $ 178440    39.13% effective overall tax rate(computed on tax on middle of income range)
Over $ 202773 but not over $ 243328    $  81880, plus 62.00% of excess over $ 202773    42.35% effective overall tax rate(computed on tax on middle of income range)
Over $ 243328 but not over $ 283883    $ 107024, plus 64.00% of excess over $ 243328    45.52% effective overall tax rate(computed on tax on middle of income range)
Over $ 283883 but not over $ 324437    $ 132979, plus 66.00% of excess over $ 283883    48.12% effective overall tax rate(computed on tax on middle of income range)
Over $ 324437 but not over $ 364992    $ 159745, plus 68.00% of excess over $ 324437    50.34% effective overall tax rate(computed on tax on middle of income range)
Over $ 364992 but not over $ 405547    $ 187322, plus 69.00% of excess over $ 364992    52.25% effective overall tax rate(computed on tax on middle of income range)
Over $ 405547 ........................ $ 215305, plus 70.00% of excess over $ 405547    53.09% <=> 70.00% effective overall tax rate as income goes to infinity
                                                                              1976     1954                                               using exact decimal values of taxes (not integers)
                                                                              ____     ____
taxable income in 2013 dollars $     10000     tax due in  2013 dollars $     1616     2000     percentage of taxable income= 16.16%    for tax year 1976  percentage of 1954 taxes  80.81%
taxable income in 2013 dollars $     20000     tax due in  2013 dollars $     3592     4057     percentage of taxable income= 17.96%    for tax year 1976  percentage of 1954 taxes  88.53%
taxable income in 2013 dollars $     30000     tax due in  2013 dollars $     5862     6257     percentage of taxable income= 19.54%    for tax year 1976  percentage of 1954 taxes  93.68%
taxable income in 2013 dollars $     40000     tax due in  2013 dollars $     8337     8684     percentage of taxable income= 20.84%    for tax year 1976  percentage of 1954 taxes  96.00%
taxable income in 2013 dollars $     50000     tax due in  2013 dollars $    11053    11284     percentage of taxable income= 22.11%    for tax year 1976  percentage of 1954 taxes  97.95%
taxable income in 2013 dollars $     60000     tax due in  2013 dollars $    14017    14226     percentage of taxable income= 23.36%    for tax year 1976  percentage of 1954 taxes  98.54%
taxable income in 2013 dollars $     70000     tax due in  2013 dollars $    17271    17280     percentage of taxable income= 24.67%    for tax year 1976  percentage of 1954 taxes  99.94%
taxable income in 2013 dollars $     80000     tax due in  2013 dollars $    20811    20680     percentage of taxable income= 26.01%    for tax year 1976  percentage of 1954 taxes  100.63%
taxable income in 2013 dollars $     90000     tax due in  2013 dollars $    24604    24249     percentage of taxable income= 27.34%    for tax year 1976  percentage of 1954 taxes  101.46%
taxable income in 2013 dollars $    100000     tax due in  2013 dollars $    28604    28049     percentage of taxable income= 28.60%    for tax year 1976  percentage of 1954 taxes  101.98%
taxable income in 2013 dollars $    150000     tax due in  2013 dollars $    51843    50981     percentage of taxable income= 34.56%    for tax year 1976  percentage of 1954 taxes  101.69%
taxable income in 2013 dollars $    200000     tax due in  2013 dollars $    80216    78540     percentage of taxable income= 40.11%    for tax year 1976  percentage of 1954 taxes  102.13%
taxable income in 2013 dollars $    250000     tax due in  2013 dollars $   111294   108849     percentage of taxable income= 44.52%    for tax year 1976  percentage of 1954 taxes  102.25%
taxable income in 2013 dollars $    300000     tax due in  2013 dollars $   143616   140614     percentage of taxable income= 47.87%    for tax year 1976  percentage of 1954 taxes  102.14%
taxable income in 2013 dollars $    350000     tax due in  2013 dollars $   177127   174075     percentage of taxable income= 50.61%    for tax year 1976  percentage of 1954 taxes  101.75%
taxable income in 2013 dollars $    400000     tax due in  2013 dollars $   211478   209251     percentage of taxable income= 52.87%    for tax year 1976  percentage of 1954 taxes  101.06%
taxable income in 2013 dollars $    450000     tax due in  2013 dollars $   246422   245884     percentage of taxable income= 54.76%    for tax year 1976  percentage of 1954 taxes  100.22%
taxable income in 2013 dollars $    500000     tax due in  2013 dollars $   281422   283384     percentage of taxable income= 56.28%    for tax year 1976  percentage of 1954 taxes  99.31%
taxable income in 2013 dollars $    600000     tax due in  2013 dollars $   351422   360943     percentage of taxable income= 58.57%    for tax year 1976  percentage of 1954 taxes  97.36%
taxable income in 2013 dollars $    700000     tax due in  2013 dollars $   421422   442341     percentage of taxable income= 60.20%    for tax year 1976  percentage of 1954 taxes  95.27%
taxable income in 2013 dollars $    800000     tax due in  2013 dollars $   491422   527179     percentage of taxable income= 61.43%    for tax year 1976  percentage of 1954 taxes  93.22%
taxable income in 2013 dollars $    900000     tax due in  2013 dollars $   561422   615023     percentage of taxable income= 62.38%    for tax year 1976  percentage of 1954 taxes  91.28%
taxable income in 2013 dollars $   1000000     tax due in  2013 dollars $   631422   704023     percentage of taxable income= 63.14%    for tax year 1976  percentage of 1954 taxes  89.69%

1977 tax rate schedule with ORIGINAL dollar figures(for SINGLE taxpayer)
Historical data for the marginal rates was obtained at the Tax Foundation website at [U.S. Federal Individual Income Tax Rates History, 1913-2011 (Nominal and Inflation-Adjusted Brackets)]
Computation of the actual taxes due and the effective overall tax rate at each level were done by Jeff Sagarin.

Not over $   2200 ...................................  0.00% of the taxable income       0.00% effective overall tax rate
Over $   2200 but not over $   2700    $      0, plus 14.00% of excess over $   2200     1.43% effective overall tax rate(computed on tax on middle of income range)
Over $   2700 but not over $   3200    $     70, plus 15.00% of excess over $   2700     3.64% effective overall tax rate(computed on tax on middle of income range)
Over $   3200 but not over $   3700    $    145, plus 16.00% of excess over $   3200     5.36% effective overall tax rate(computed on tax on middle of income range)
Over $   3700 but not over $   4200    $    225, plus 17.00% of excess over $   3700     6.77% effective overall tax rate(computed on tax on middle of income range)
Over $   4200 but not over $   6200    $    310, plus 19.00% of excess over $   4200     9.62% effective overall tax rate(computed on tax on middle of income range)
Over $   6200 but not over $   8200    $    690, plus 21.00% of excess over $   6200    12.50% effective overall tax rate(computed on tax on middle of income range)
Over $   8200 but not over $  10200    $   1110, plus 24.00% of excess over $   8200    14.67% effective overall tax rate(computed on tax on middle of income range)
Over $  10200 but not over $  12200    $   1590, plus 25.00% of excess over $  10200    16.43% effective overall tax rate(computed on tax on middle of income range)
Over $  12200 but not over $  14200    $   2090, plus 27.00% of excess over $  12200    17.88% effective overall tax rate(computed on tax on middle of income range)
Over $  14200 but not over $  16200    $   2630, plus 29.00% of excess over $  14200    19.21% effective overall tax rate(computed on tax on middle of income range)
Over $  16200 but not over $  18200    $   3210, plus 31.00% of excess over $  16200    20.47% effective overall tax rate(computed on tax on middle of income range)
Over $  18200 but not over $  20200    $   3830, plus 34.00% of excess over $  18200    21.72% effective overall tax rate(computed on tax on middle of income range)
Over $  20200 but not over $  22200    $   4510, plus 36.00% of excess over $  20200    22.97% effective overall tax rate(computed on tax on middle of income range)
Over $  22200 but not over $  24200    $   5230, plus 38.00% of excess over $  22200    24.18% effective overall tax rate(computed on tax on middle of income range)
Over $  24200 but not over $  28200    $   5990, plus 40.00% of excess over $  24200    25.92% effective overall tax rate(computed on tax on middle of income range)
Over $  28200 but not over $  34200    $   7590, plus 45.00% of excess over $  28200    28.65% effective overall tax rate(computed on tax on middle of income range)
Over $  34200 but not over $  40200    $  10290, plus 50.00% of excess over $  34200    31.69% effective overall tax rate(computed on tax on middle of income range)
Over $  40200 but not over $  46200    $  13290, plus 55.00% of excess over $  40200    34.58% effective overall tax rate(computed on tax on middle of income range)
Over $  46200 but not over $  52200    $  16590, plus 60.00% of excess over $  46200    37.38% effective overall tax rate(computed on tax on middle of income range)
Over $  52200 but not over $  62200    $  20190, plus 62.00% of excess over $  52200    40.72% effective overall tax rate(computed on tax on middle of income range)
Over $  62200 but not over $  72200    $  26390, plus 64.00% of excess over $  62200    44.03% effective overall tax rate(computed on tax on middle of income range)
Over $  72200 but not over $  82200    $  32790, plus 66.00% of excess over $  72200    46.75% effective overall tax rate(computed on tax on middle of income range)
Over $  82200 but not over $  92200    $  39390, plus 68.00% of excess over $  82200    49.07% effective overall tax rate(computed on tax on middle of income range)
Over $  92200 but not over $ 102200    $  46190, plus 69.00% of excess over $  92200    51.07% effective overall tax rate(computed on tax on middle of income range)
Over $ 102200 ........................ $  53090, plus 70.00% of excess over $ 102200    51.95% <=> 70.00% effective overall tax rate as income goes to infinity
1977 tax rate schedule with figures INFLATION-ADJUSTED to 2013 dollars(for SINGLE taxpayer) ... the multiplier is 3.807854786 based on the average of the last 12 monthly figures through and including April 2013 released in mid-May 2013)
Inflation multiplier was determined from Bureau of Labor Statistics at [CPI Inflation Calculator | Historical Consumer Price Index]
Computation of the actual taxes due and the effective overall tax rate at each level were done by Jeff Sagarin.

Not over $   8377 ...................................  0.00% of the taxable income       0.00% effective overall tax rate
Over $   8377 but not over $  10281    $      0, plus 14.00% of excess over $   8377     1.43% effective overall tax rate(computed on tax on middle of income range)
Over $  10281 but not over $  12185    $    267, plus 15.00% of excess over $  10281     3.64% effective overall tax rate(computed on tax on middle of income range)
Over $  12185 but not over $  14089    $    552, plus 16.00% of excess over $  12185     5.36% effective overall tax rate(computed on tax on middle of income range)
Over $  14089 but not over $  15993    $    857, plus 17.00% of excess over $  14089     6.77% effective overall tax rate(computed on tax on middle of income range)
Over $  15993 but not over $  23609    $   1180, plus 19.00% of excess over $  15993     9.62% effective overall tax rate(computed on tax on middle of income range)
Over $  23609 but not over $  31224    $   2627, plus 21.00% of excess over $  23609    12.50% effective overall tax rate(computed on tax on middle of income range)
Over $  31224 but not over $  38840    $   4227, plus 24.00% of excess over $  31224    14.67% effective overall tax rate(computed on tax on middle of income range)
Over $  38840 but not over $  46456    $   6054, plus 25.00% of excess over $  38840    16.43% effective overall tax rate(computed on tax on middle of income range)
Over $  46456 but not over $  54072    $   7958, plus 27.00% of excess over $  46456    17.88% effective overall tax rate(computed on tax on middle of income range)
Over $  54072 but not over $  61687    $  10015, plus 29.00% of excess over $  54072    19.21% effective overall tax rate(computed on tax on middle of income range)
Over $  61687 but not over $  69303    $  12223, plus 31.00% of excess over $  61687    20.47% effective overall tax rate(computed on tax on middle of income range)
Over $  69303 but not over $  76919    $  14584, plus 34.00% of excess over $  69303    21.72% effective overall tax rate(computed on tax on middle of income range)
Over $  76919 but not over $  84534    $  17173, plus 36.00% of excess over $  76919    22.97% effective overall tax rate(computed on tax on middle of income range)
Over $  84534 but not over $  92150    $  19915, plus 38.00% of excess over $  84534    24.18% effective overall tax rate(computed on tax on middle of income range)
Over $  92150 but not over $ 107382    $  22809, plus 40.00% of excess over $  92150    25.92% effective overall tax rate(computed on tax on middle of income range)
Over $ 107382 but not over $ 130229    $  28902, plus 45.00% of excess over $ 107382    28.65% effective overall tax rate(computed on tax on middle of income range)
Over $ 130229 but not over $ 153076    $  39183, plus 50.00% of excess over $ 130229    31.69% effective overall tax rate(computed on tax on middle of income range)
Over $ 153076 but not over $ 175923    $  50606, plus 55.00% of excess over $ 153076    34.58% effective overall tax rate(computed on tax on middle of income range)
Over $ 175923 but not over $ 198770    $  63172, plus 60.00% of excess over $ 175923    37.38% effective overall tax rate(computed on tax on middle of income range)
Over $ 198770 but not over $ 236849    $  76881, plus 62.00% of excess over $ 198770    40.72% effective overall tax rate(computed on tax on middle of income range)
Over $ 236849 but not over $ 274927    $ 100489, plus 64.00% of excess over $ 236849    44.03% effective overall tax rate(computed on tax on middle of income range)
Over $ 274927 but not over $ 313006    $ 124860, plus 66.00% of excess over $ 274927    46.75% effective overall tax rate(computed on tax on middle of income range)
Over $ 313006 but not over $ 351084    $ 149991, plus 68.00% of excess over $ 313006    49.07% effective overall tax rate(computed on tax on middle of income range)
Over $ 351084 but not over $ 389163    $ 175885, plus 69.00% of excess over $ 351084    51.07% effective overall tax rate(computed on tax on middle of income range)
Over $ 389163 ........................ $ 202159, plus 70.00% of excess over $ 389163    51.95% <=> 70.00% effective overall tax rate as income goes to infinity
                                                                              1977     1954                                               using exact decimal values of taxes (not integers)
                                                                              ____     ____
taxable income in 2013 dollars $     10000     tax due in  2013 dollars $      227     2000     percentage of taxable income=  2.27%    for tax year 1977  percentage of 1954 taxes  11.36%
taxable income in 2013 dollars $     20000     tax due in  2013 dollars $     1942     4057     percentage of taxable income=  9.71%    for tax year 1977  percentage of 1954 taxes  47.86%
taxable income in 2013 dollars $     30000     tax due in  2013 dollars $     3970     6257     percentage of taxable income= 13.23%    for tax year 1977  percentage of 1954 taxes  63.44%
taxable income in 2013 dollars $     40000     tax due in  2013 dollars $     6344     8684     percentage of taxable income= 15.86%    for tax year 1977  percentage of 1954 taxes  73.06%
taxable income in 2013 dollars $     50000     tax due in  2013 dollars $     8915    11284     percentage of taxable income= 17.83%    for tax year 1977  percentage of 1954 taxes  79.01%
taxable income in 2013 dollars $     60000     tax due in  2013 dollars $    11734    14226     percentage of taxable income= 19.56%    for tax year 1977  percentage of 1954 taxes  82.48%
taxable income in 2013 dollars $     70000     tax due in  2013 dollars $    14821    17280     percentage of taxable income= 21.17%    for tax year 1977  percentage of 1954 taxes  85.77%
taxable income in 2013 dollars $     80000     tax due in  2013 dollars $    18283    20680     percentage of taxable income= 22.85%    for tax year 1977  percentage of 1954 taxes  88.41%
taxable income in 2013 dollars $     90000     tax due in  2013 dollars $    21992    24249     percentage of taxable income= 24.44%    for tax year 1977  percentage of 1954 taxes  90.69%
taxable income in 2013 dollars $    100000     tax due in  2013 dollars $    25949    28049     percentage of taxable income= 25.95%    for tax year 1977  percentage of 1954 taxes  92.51%
taxable income in 2013 dollars $    150000     tax due in  2013 dollars $    49069    50981     percentage of taxable income= 32.71%    for tax year 1977  percentage of 1954 taxes  96.25%
taxable income in 2013 dollars $    200000     tax due in  2013 dollars $    77643    78540     percentage of taxable income= 38.82%    for tax year 1977  percentage of 1954 taxes  98.86%
taxable income in 2013 dollars $    250000     tax due in  2013 dollars $   108906   108849     percentage of taxable income= 43.56%    for tax year 1977  percentage of 1954 taxes  100.05%
taxable income in 2013 dollars $    300000     tax due in  2013 dollars $   141408   140614     percentage of taxable income= 47.14%    for tax year 1977  percentage of 1954 taxes  100.56%
taxable income in 2013 dollars $    350000     tax due in  2013 dollars $   175148   174075     percentage of taxable income= 50.04%    for tax year 1977  percentage of 1954 taxes  100.62%
taxable income in 2013 dollars $    400000     tax due in  2013 dollars $   209745   209251     percentage of taxable income= 52.44%    for tax year 1977  percentage of 1954 taxes  100.24%
taxable income in 2013 dollars $    450000     tax due in  2013 dollars $   244745   245884     percentage of taxable income= 54.39%    for tax year 1977  percentage of 1954 taxes  99.54%
taxable income in 2013 dollars $    500000     tax due in  2013 dollars $   279745   283384     percentage of taxable income= 55.95%    for tax year 1977  percentage of 1954 taxes  98.72%
taxable income in 2013 dollars $    600000     tax due in  2013 dollars $   349745   360943     percentage of taxable income= 58.29%    for tax year 1977  percentage of 1954 taxes  96.90%
taxable income in 2013 dollars $    700000     tax due in  2013 dollars $   419745   442341     percentage of taxable income= 59.96%    for tax year 1977  percentage of 1954 taxes  94.89%
taxable income in 2013 dollars $    800000     tax due in  2013 dollars $   489745   527179     percentage of taxable income= 61.22%    for tax year 1977  percentage of 1954 taxes  92.90%
taxable income in 2013 dollars $    900000     tax due in  2013 dollars $   559745   615023     percentage of taxable income= 62.19%    for tax year 1977  percentage of 1954 taxes  91.01%
taxable income in 2013 dollars $   1000000     tax due in  2013 dollars $   629745   704023     percentage of taxable income= 62.97%    for tax year 1977  percentage of 1954 taxes  89.45%

1978 tax rate schedule with ORIGINAL dollar figures(for SINGLE taxpayer)
Historical data for the marginal rates was obtained at the Tax Foundation website at [U.S. Federal Individual Income Tax Rates History, 1913-2011 (Nominal and Inflation-Adjusted Brackets)]
Computation of the actual taxes due and the effective overall tax rate at each level were done by Jeff Sagarin.

Not over $   2200 ...................................  0.00% of the taxable income       0.00% effective overall tax rate
Over $   2200 but not over $   2700    $      0, plus 14.00% of excess over $   2200     1.43% effective overall tax rate(computed on tax on middle of income range)
Over $   2700 but not over $   3200    $     70, plus 15.00% of excess over $   2700     3.64% effective overall tax rate(computed on tax on middle of income range)
Over $   3200 but not over $   3700    $    145, plus 16.00% of excess over $   3200     5.36% effective overall tax rate(computed on tax on middle of income range)
Over $   3700 but not over $   4200    $    225, plus 17.00% of excess over $   3700     6.77% effective overall tax rate(computed on tax on middle of income range)
Over $   4200 but not over $   6200    $    310, plus 19.00% of excess over $   4200     9.62% effective overall tax rate(computed on tax on middle of income range)
Over $   6200 but not over $   8200    $    690, plus 21.00% of excess over $   6200    12.50% effective overall tax rate(computed on tax on middle of income range)
Over $   8200 but not over $  10200    $   1110, plus 24.00% of excess over $   8200    14.67% effective overall tax rate(computed on tax on middle of income range)
Over $  10200 but not over $  12200    $   1590, plus 25.00% of excess over $  10200    16.43% effective overall tax rate(computed on tax on middle of income range)
Over $  12200 but not over $  14200    $   2090, plus 27.00% of excess over $  12200    17.88% effective overall tax rate(computed on tax on middle of income range)
Over $  14200 but not over $  16200    $   2630, plus 29.00% of excess over $  14200    19.21% effective overall tax rate(computed on tax on middle of income range)
Over $  16200 but not over $  18200    $   3210, plus 31.00% of excess over $  16200    20.47% effective overall tax rate(computed on tax on middle of income range)
Over $  18200 but not over $  20200    $   3830, plus 34.00% of excess over $  18200    21.72% effective overall tax rate(computed on tax on middle of income range)
Over $  20200 but not over $  22200    $   4510, plus 36.00% of excess over $  20200    22.97% effective overall tax rate(computed on tax on middle of income range)
Over $  22200 but not over $  24200    $   5230, plus 38.00% of excess over $  22200    24.18% effective overall tax rate(computed on tax on middle of income range)
Over $  24200 but not over $  28200    $   5990, plus 40.00% of excess over $  24200    25.92% effective overall tax rate(computed on tax on middle of income range)
Over $  28200 but not over $  34200    $   7590, plus 45.00% of excess over $  28200    28.65% effective overall tax rate(computed on tax on middle of income range)
Over $  34200 but not over $  40200    $  10290, plus 50.00% of excess over $  34200    31.69% effective overall tax rate(computed on tax on middle of income range)
Over $  40200 but not over $  46200    $  13290, plus 55.00% of excess over $  40200    34.58% effective overall tax rate(computed on tax on middle of income range)
Over $  46200 but not over $  52200    $  16590, plus 60.00% of excess over $  46200    37.38% effective overall tax rate(computed on tax on middle of income range)
Over $  52200 but not over $  62200    $  20190, plus 62.00% of excess over $  52200    40.72% effective overall tax rate(computed on tax on middle of income range)
Over $  62200 but not over $  72200    $  26390, plus 64.00% of excess over $  62200    44.03% effective overall tax rate(computed on tax on middle of income range)
Over $  72200 but not over $  82200    $  32790, plus 66.00% of excess over $  72200    46.75% effective overall tax rate(computed on tax on middle of income range)
Over $  82200 but not over $  92200    $  39390, plus 68.00% of excess over $  82200    49.07% effective overall tax rate(computed on tax on middle of income range)
Over $  92200 but not over $ 102200    $  46190, plus 69.00% of excess over $  92200    51.07% effective overall tax rate(computed on tax on middle of income range)
Over $ 102200 ........................ $  53090, plus 70.00% of excess over $ 102200    51.95% <=> 70.00% effective overall tax rate as income goes to infinity
1978 tax rate schedule with figures INFLATION-ADJUSTED to 2013 dollars(for SINGLE taxpayer) ... the multiplier is 3.539202454 based on the average of the last 12 monthly figures through and including April 2013 released in mid-May 2013)
Inflation multiplier was determined from Bureau of Labor Statistics at [CPI Inflation Calculator | Historical Consumer Price Index]
Computation of the actual taxes due and the effective overall tax rate at each level were done by Jeff Sagarin.

Not over $   7786 ...................................  0.00% of the taxable income       0.00% effective overall tax rate
Over $   7786 but not over $   9556    $      0, plus 14.00% of excess over $   7786     1.43% effective overall tax rate(computed on tax on middle of income range)
Over $   9556 but not over $  11325    $    248, plus 15.00% of excess over $   9556     3.64% effective overall tax rate(computed on tax on middle of income range)
Over $  11325 but not over $  13095    $    513, plus 16.00% of excess over $  11325     5.36% effective overall tax rate(computed on tax on middle of income range)
Over $  13095 but not over $  14865    $    796, plus 17.00% of excess over $  13095     6.77% effective overall tax rate(computed on tax on middle of income range)
Over $  14865 but not over $  21943    $   1097, plus 19.00% of excess over $  14865     9.62% effective overall tax rate(computed on tax on middle of income range)
Over $  21943 but not over $  29021    $   2442, plus 21.00% of excess over $  21943    12.50% effective overall tax rate(computed on tax on middle of income range)
Over $  29021 but not over $  36100    $   3929, plus 24.00% of excess over $  29021    14.67% effective overall tax rate(computed on tax on middle of income range)
Over $  36100 but not over $  43178    $   5627, plus 25.00% of excess over $  36100    16.43% effective overall tax rate(computed on tax on middle of income range)
Over $  43178 but not over $  50257    $   7397, plus 27.00% of excess over $  43178    17.88% effective overall tax rate(computed on tax on middle of income range)
Over $  50257 but not over $  57335    $   9308, plus 29.00% of excess over $  50257    19.21% effective overall tax rate(computed on tax on middle of income range)
Over $  57335 but not over $  64413    $  11361, plus 31.00% of excess over $  57335    20.47% effective overall tax rate(computed on tax on middle of income range)
Over $  64413 but not over $  71492    $  13555, plus 34.00% of excess over $  64413    21.72% effective overall tax rate(computed on tax on middle of income range)
Over $  71492 but not over $  78570    $  15962, plus 36.00% of excess over $  71492    22.97% effective overall tax rate(computed on tax on middle of income range)
Over $  78570 but not over $  85649    $  18510, plus 38.00% of excess over $  78570    24.18% effective overall tax rate(computed on tax on middle of income range)
Over $  85649 but not over $  99806    $  21200, plus 40.00% of excess over $  85649    25.92% effective overall tax rate(computed on tax on middle of income range)
Over $  99806 but not over $ 121041    $  26863, plus 45.00% of excess over $  99806    28.65% effective overall tax rate(computed on tax on middle of income range)
Over $ 121041 but not over $ 142276    $  36418, plus 50.00% of excess over $ 121041    31.69% effective overall tax rate(computed on tax on middle of income range)
Over $ 142276 but not over $ 163511    $  47036, plus 55.00% of excess over $ 142276    34.58% effective overall tax rate(computed on tax on middle of income range)
Over $ 163511 but not over $ 184746    $  58715, plus 60.00% of excess over $ 163511    37.38% effective overall tax rate(computed on tax on middle of income range)
Over $ 184746 but not over $ 220138    $  71456, plus 62.00% of excess over $ 184746    40.72% effective overall tax rate(computed on tax on middle of income range)
Over $ 220138 but not over $ 255530    $  93400, plus 64.00% of excess over $ 220138    44.03% effective overall tax rate(computed on tax on middle of income range)
Over $ 255530 but not over $ 290922    $ 116050, plus 66.00% of excess over $ 255530    46.75% effective overall tax rate(computed on tax on middle of income range)
Over $ 290922 but not over $ 326314    $ 139409, plus 68.00% of excess over $ 290922    49.07% effective overall tax rate(computed on tax on middle of income range)
Over $ 326314 but not over $ 361706    $ 163476, plus 69.00% of excess over $ 326314    51.07% effective overall tax rate(computed on tax on middle of income range)
Over $ 361706 ........................ $ 187896, plus 70.00% of excess over $ 361706    51.95% <=> 70.00% effective overall tax rate as income goes to infinity
                                                                              1978     1954                                               using exact decimal values of taxes (not integers)
                                                                              ____     ____
taxable income in 2013 dollars $     10000     tax due in  2013 dollars $      314     2000     percentage of taxable income=  3.14%    for tax year 1978  percentage of 1954 taxes  15.72%
taxable income in 2013 dollars $     20000     tax due in  2013 dollars $     2073     4057     percentage of taxable income= 10.36%    for tax year 1978  percentage of 1954 taxes  51.10%
taxable income in 2013 dollars $     30000     tax due in  2013 dollars $     4163     6257     percentage of taxable income= 13.88%    for tax year 1978  percentage of 1954 taxes  66.54%
taxable income in 2013 dollars $     40000     tax due in  2013 dollars $     6602     8684     percentage of taxable income= 16.51%    for tax year 1978  percentage of 1954 taxes  76.03%
taxable income in 2013 dollars $     50000     tax due in  2013 dollars $     9239    11284     percentage of taxable income= 18.48%    for tax year 1978  percentage of 1954 taxes  81.87%
taxable income in 2013 dollars $     60000     tax due in  2013 dollars $    12187    14226     percentage of taxable income= 20.31%    for tax year 1978  percentage of 1954 taxes  85.67%
taxable income in 2013 dollars $     70000     tax due in  2013 dollars $    15455    17280     percentage of taxable income= 22.08%    for tax year 1978  percentage of 1954 taxes  89.43%
taxable income in 2013 dollars $     80000     tax due in  2013 dollars $    19053    20680     percentage of taxable income= 23.82%    for tax year 1978  percentage of 1954 taxes  92.13%
taxable income in 2013 dollars $     90000     tax due in  2013 dollars $    22940    24249     percentage of taxable income= 25.49%    for tax year 1978  percentage of 1954 taxes  94.60%
taxable income in 2013 dollars $    100000     tax due in  2013 dollars $    26950    28049     percentage of taxable income= 26.95%    for tax year 1978  percentage of 1954 taxes  96.08%
taxable income in 2013 dollars $    150000     tax due in  2013 dollars $    51284    50981     percentage of taxable income= 34.19%    for tax year 1978  percentage of 1954 taxes  100.60%
taxable income in 2013 dollars $    200000     tax due in  2013 dollars $    80914    78540     percentage of taxable income= 40.46%    for tax year 1978  percentage of 1954 taxes  103.02%
taxable income in 2013 dollars $    250000     tax due in  2013 dollars $   112511   108849     percentage of taxable income= 45.00%    for tax year 1978  percentage of 1954 taxes  103.36%
taxable income in 2013 dollars $    300000     tax due in  2013 dollars $   145582   140614     percentage of taxable income= 48.53%    for tax year 1978  percentage of 1954 taxes  103.53%
taxable income in 2013 dollars $    350000     tax due in  2013 dollars $   179819   174075     percentage of taxable income= 51.38%    for tax year 1978  percentage of 1954 taxes  103.30%
taxable income in 2013 dollars $    400000     tax due in  2013 dollars $   214702   209251     percentage of taxable income= 53.68%    for tax year 1978  percentage of 1954 taxes  102.60%
taxable income in 2013 dollars $    450000     tax due in  2013 dollars $   249702   245884     percentage of taxable income= 55.49%    for tax year 1978  percentage of 1954 taxes  101.55%
taxable income in 2013 dollars $    500000     tax due in  2013 dollars $   284702   283384     percentage of taxable income= 56.94%    for tax year 1978  percentage of 1954 taxes  100.47%
taxable income in 2013 dollars $    600000     tax due in  2013 dollars $   354702   360943     percentage of taxable income= 59.12%    for tax year 1978  percentage of 1954 taxes  98.27%
taxable income in 2013 dollars $    700000     tax due in  2013 dollars $   424702   442341     percentage of taxable income= 60.67%    for tax year 1978  percentage of 1954 taxes  96.01%
taxable income in 2013 dollars $    800000     tax due in  2013 dollars $   494702   527179     percentage of taxable income= 61.84%    for tax year 1978  percentage of 1954 taxes  93.84%
taxable income in 2013 dollars $    900000     tax due in  2013 dollars $   564702   615023     percentage of taxable income= 62.74%    for tax year 1978  percentage of 1954 taxes  91.82%
taxable income in 2013 dollars $   1000000     tax due in  2013 dollars $   634702   704023     percentage of taxable income= 63.47%    for tax year 1978  percentage of 1954 taxes  90.15%

1979 tax rate schedule with ORIGINAL dollar figures(for SINGLE taxpayer)
Historical data for the marginal rates was obtained at the Tax Foundation website at [U.S. Federal Individual Income Tax Rates History, 1913-2011 (Nominal and Inflation-Adjusted Brackets)]
Computation of the actual taxes due and the effective overall tax rate at each level were done by Jeff Sagarin.

Not over $   2300 ...................................  0.00% of the taxable income       0.00% effective overall tax rate
Over $   2300 but not over $   3400    $      0, plus 14.00% of excess over $   2300     2.70% effective overall tax rate(computed on tax on middle of income range)
Over $   3400 but not over $   4400    $    154, plus 16.00% of excess over $   3400     6.00% effective overall tax rate(computed on tax on middle of income range)
Over $   4400 but not over $   6500    $    314, plus 18.00% of excess over $   4400     9.23% effective overall tax rate(computed on tax on middle of income range)
Over $   6500 but not over $   8500    $    692, plus 19.00% of excess over $   6500    11.76% effective overall tax rate(computed on tax on middle of income range)
Over $   8500 but not over $  10800    $   1072, plus 21.00% of excess over $   8500    13.61% effective overall tax rate(computed on tax on middle of income range)
Over $  10800 but not over $  12900    $   1555, plus 24.00% of excess over $  10800    15.25% effective overall tax rate(computed on tax on middle of income range)
Over $  12900 but not over $  15000    $   2059, plus 26.00% of excess over $  12900    16.72% effective overall tax rate(computed on tax on middle of income range)
Over $  15000 but not over $  18200    $   2605, plus 30.00% of excess over $  15000    18.58% effective overall tax rate(computed on tax on middle of income range)
Over $  18200 but not over $  23500    $   3565, plus 34.00% of excess over $  18200    21.42% effective overall tax rate(computed on tax on middle of income range)
Over $  23500 but not over $  28800    $   5367, plus 39.00% of excess over $  23500    24.48% effective overall tax rate(computed on tax on middle of income range)
Over $  28800 but not over $  34100    $   7434, plus 44.00% of excess over $  28800    27.34% effective overall tax rate(computed on tax on middle of income range)
Over $  34100 but not over $  41500    $   9766, plus 49.00% of excess over $  34100    30.63% effective overall tax rate(computed on tax on middle of income range)
Over $  41500 but not over $  55300    $  13392, plus 55.00% of excess over $  41500    35.51% effective overall tax rate(computed on tax on middle of income range)
Over $  55300 but not over $  81800    $  20982, plus 63.00% of excess over $  55300    42.79% effective overall tax rate(computed on tax on middle of income range)
Over $  81800 but not over $ 108300    $  37677, plus 68.00% of excess over $  81800    49.12% effective overall tax rate(computed on tax on middle of income range)
Over $ 108300 ........................ $  55697, plus 70.00% of excess over $ 108300    51.43% <=> 70.00% effective overall tax rate as income goes to infinity
1979 tax rate schedule with figures INFLATION-ADJUSTED to 2013 dollars(for SINGLE taxpayer) ... the multiplier is 3.178457300 based on the average of the last 12 monthly figures through and including April 2013 released in mid-May 2013)
Inflation multiplier was determined from Bureau of Labor Statistics at [CPI Inflation Calculator | Historical Consumer Price Index]
Computation of the actual taxes due and the effective overall tax rate at each level were done by Jeff Sagarin.

Not over $   7310 ...................................  0.00% of the taxable income       0.00% effective overall tax rate
Over $   7310 but not over $  10807    $      0, plus 14.00% of excess over $   7310     2.70% effective overall tax rate(computed on tax on middle of income range)
Over $  10807 but not over $  13985    $    489, plus 16.00% of excess over $  10807     6.00% effective overall tax rate(computed on tax on middle of income range)
Over $  13985 but not over $  20660    $    998, plus 18.00% of excess over $  13985     9.23% effective overall tax rate(computed on tax on middle of income range)
Over $  20660 but not over $  27017    $   2199, plus 19.00% of excess over $  20660    11.76% effective overall tax rate(computed on tax on middle of income range)
Over $  27017 but not over $  34327    $   3407, plus 21.00% of excess over $  27017    13.61% effective overall tax rate(computed on tax on middle of income range)
Over $  34327 but not over $  41002    $   4943, plus 24.00% of excess over $  34327    15.25% effective overall tax rate(computed on tax on middle of income range)
Over $  41002 but not over $  47677    $   6544, plus 26.00% of excess over $  41002    16.72% effective overall tax rate(computed on tax on middle of income range)
Over $  47677 but not over $  57848    $   8280, plus 30.00% of excess over $  47677    18.58% effective overall tax rate(computed on tax on middle of income range)
Over $  57848 but not over $  74694    $  11331, plus 34.00% of excess over $  57848    21.42% effective overall tax rate(computed on tax on middle of income range)
Over $  74694 but not over $  91540    $  17059, plus 39.00% of excess over $  74694    24.48% effective overall tax rate(computed on tax on middle of income range)
Over $  91540 but not over $ 108385    $  23629, plus 44.00% of excess over $  91540    27.34% effective overall tax rate(computed on tax on middle of income range)
Over $ 108385 but not over $ 131906    $  31041, plus 49.00% of excess over $ 108385    30.63% effective overall tax rate(computed on tax on middle of income range)
Over $ 131906 but not over $ 175769    $  42566, plus 55.00% of excess over $ 131906    35.51% effective overall tax rate(computed on tax on middle of income range)
Over $ 175769 but not over $ 259998    $  66690, plus 63.00% of excess over $ 175769    42.79% effective overall tax rate(computed on tax on middle of income range)
Over $ 259998 but not over $ 344227    $ 119755, plus 68.00% of excess over $ 259998    49.12% effective overall tax rate(computed on tax on middle of income range)
Over $ 344227 ........................ $ 177031, plus 70.00% of excess over $ 344227    51.43% <=> 70.00% effective overall tax rate as income goes to infinity
                                                                              1979     1954                                               using exact decimal values of taxes (not integers)
                                                                              ____     ____
taxable income in 2013 dollars $     10000     tax due in  2013 dollars $      377     2000     percentage of taxable income=  3.77%    for tax year 1979  percentage of 1954 taxes  18.83%
taxable income in 2013 dollars $     20000     tax due in  2013 dollars $     2081     4057     percentage of taxable income= 10.40%    for tax year 1979  percentage of 1954 taxes  51.29%
taxable income in 2013 dollars $     30000     tax due in  2013 dollars $     4034     6257     percentage of taxable income= 13.45%    for tax year 1979  percentage of 1954 taxes  64.47%
taxable income in 2013 dollars $     40000     tax due in  2013 dollars $     6304     8684     percentage of taxable income= 15.76%    for tax year 1979  percentage of 1954 taxes  72.59%
taxable income in 2013 dollars $     50000     tax due in  2013 dollars $     8977    11284     percentage of taxable income= 17.95%    for tax year 1979  percentage of 1954 taxes  79.55%
taxable income in 2013 dollars $     60000     tax due in  2013 dollars $    12063    14226     percentage of taxable income= 20.10%    for tax year 1979  percentage of 1954 taxes  84.80%
taxable income in 2013 dollars $     70000     tax due in  2013 dollars $    15463    17280     percentage of taxable income= 22.09%    for tax year 1979  percentage of 1954 taxes  89.48%
taxable income in 2013 dollars $     80000     tax due in  2013 dollars $    19128    20680     percentage of taxable income= 23.91%    for tax year 1979  percentage of 1954 taxes  92.49%
taxable income in 2013 dollars $     90000     tax due in  2013 dollars $    23028    24249     percentage of taxable income= 25.59%    for tax year 1979  percentage of 1954 taxes  94.96%
taxable income in 2013 dollars $    100000     tax due in  2013 dollars $    27351    28049     percentage of taxable income= 27.35%    for tax year 1979  percentage of 1954 taxes  97.51%
taxable income in 2013 dollars $    150000     tax due in  2013 dollars $    52518    50981     percentage of taxable income= 35.01%    for tax year 1979  percentage of 1954 taxes  103.01%
taxable income in 2013 dollars $    200000     tax due in  2013 dollars $    81956    78540     percentage of taxable income= 40.98%    for tax year 1979  percentage of 1954 taxes  104.35%
taxable income in 2013 dollars $    250000     tax due in  2013 dollars $   113456   108849     percentage of taxable income= 45.38%    for tax year 1979  percentage of 1954 taxes  104.23%
taxable income in 2013 dollars $    300000     tax due in  2013 dollars $   146956   140614     percentage of taxable income= 48.99%    for tax year 1979  percentage of 1954 taxes  104.51%
taxable income in 2013 dollars $    350000     tax due in  2013 dollars $   181072   174075     percentage of taxable income= 51.73%    for tax year 1979  percentage of 1954 taxes  104.02%
taxable income in 2013 dollars $    400000     tax due in  2013 dollars $   216072   209251     percentage of taxable income= 54.02%    for tax year 1979  percentage of 1954 taxes  103.26%
taxable income in 2013 dollars $    450000     tax due in  2013 dollars $   251072   245884     percentage of taxable income= 55.79%    for tax year 1979  percentage of 1954 taxes  102.11%
taxable income in 2013 dollars $    500000     tax due in  2013 dollars $   286072   283384     percentage of taxable income= 57.21%    for tax year 1979  percentage of 1954 taxes  100.95%
taxable income in 2013 dollars $    600000     tax due in  2013 dollars $   356072   360943     percentage of taxable income= 59.35%    for tax year 1979  percentage of 1954 taxes  98.65%
taxable income in 2013 dollars $    700000     tax due in  2013 dollars $   426072   442341     percentage of taxable income= 60.87%    for tax year 1979  percentage of 1954 taxes  96.32%
taxable income in 2013 dollars $    800000     tax due in  2013 dollars $   496072   527179     percentage of taxable income= 62.01%    for tax year 1979  percentage of 1954 taxes  94.10%
taxable income in 2013 dollars $    900000     tax due in  2013 dollars $   566072   615023     percentage of taxable income= 62.90%    for tax year 1979  percentage of 1954 taxes  92.04%
taxable income in 2013 dollars $   1000000     tax due in  2013 dollars $   636072   704023     percentage of taxable income= 63.61%    for tax year 1979  percentage of 1954 taxes  90.35%

1980 tax rate schedule with ORIGINAL dollar figures(for SINGLE taxpayer)
Historical data for the marginal rates was obtained at the Tax Foundation website at [U.S. Federal Individual Income Tax Rates History, 1913-2011 (Nominal and Inflation-Adjusted Brackets)]
Computation of the actual taxes due and the effective overall tax rate at each level were done by Jeff Sagarin.

Not over $   2300 ...................................  0.00% of the taxable income       0.00% effective overall tax rate
Over $   2300 but not over $   3400    $      0, plus 14.00% of excess over $   2300     2.70% effective overall tax rate(computed on tax on middle of income range)
Over $   3400 but not over $   4400    $    154, plus 16.00% of excess over $   3400     6.00% effective overall tax rate(computed on tax on middle of income range)
Over $   4400 but not over $   6500    $    314, plus 18.00% of excess over $   4400     9.23% effective overall tax rate(computed on tax on middle of income range)
Over $   6500 but not over $   8500    $    692, plus 19.00% of excess over $   6500    11.76% effective overall tax rate(computed on tax on middle of income range)
Over $   8500 but not over $  10800    $   1072, plus 21.00% of excess over $   8500    13.61% effective overall tax rate(computed on tax on middle of income range)
Over $  10800 but not over $  12900    $   1555, plus 24.00% of excess over $  10800    15.25% effective overall tax rate(computed on tax on middle of income range)
Over $  12900 but not over $  15000    $   2059, plus 26.00% of excess over $  12900    16.72% effective overall tax rate(computed on tax on middle of income range)
Over $  15000 but not over $  18200    $   2605, plus 30.00% of excess over $  15000    18.58% effective overall tax rate(computed on tax on middle of income range)
Over $  18200 but not over $  23500    $   3565, plus 34.00% of excess over $  18200    21.42% effective overall tax rate(computed on tax on middle of income range)
Over $  23500 but not over $  28800    $   5367, plus 39.00% of excess over $  23500    24.48% effective overall tax rate(computed on tax on middle of income range)
Over $  28800 but not over $  34100    $   7434, plus 44.00% of excess over $  28800    27.34% effective overall tax rate(computed on tax on middle of income range)
Over $  34100 but not over $  41500    $   9766, plus 49.00% of excess over $  34100    30.63% effective overall tax rate(computed on tax on middle of income range)
Over $  41500 but not over $  55300    $  13392, plus 55.00% of excess over $  41500    35.51% effective overall tax rate(computed on tax on middle of income range)
Over $  55300 but not over $  81800    $  20982, plus 63.00% of excess over $  55300    42.79% effective overall tax rate(computed on tax on middle of income range)
Over $  81800 but not over $ 108300    $  37677, plus 68.00% of excess over $  81800    49.12% effective overall tax rate(computed on tax on middle of income range)
Over $ 108300 ........................ $  55697, plus 70.00% of excess over $ 108300    51.43% <=> 70.00% effective overall tax rate as income goes to infinity
1980 tax rate schedule with figures INFLATION-ADJUSTED to 2013 dollars(for SINGLE taxpayer) ... the multiplier is 2.800436893 based on the average of the last 12 monthly figures through and including April 2013 released in mid-May 2013)
Inflation multiplier was determined from Bureau of Labor Statistics at [CPI Inflation Calculator | Historical Consumer Price Index]
Computation of the actual taxes due and the effective overall tax rate at each level were done by Jeff Sagarin.

Not over $   6441 ...................................  0.00% of the taxable income       0.00% effective overall tax rate
Over $   6441 but not over $   9521    $      0, plus 14.00% of excess over $   6441     2.70% effective overall tax rate(computed on tax on middle of income range)
Over $   9521 but not over $  12322    $    431, plus 16.00% of excess over $   9521     6.00% effective overall tax rate(computed on tax on middle of income range)
Over $  12322 but not over $  18203    $    879, plus 18.00% of excess over $  12322     9.23% effective overall tax rate(computed on tax on middle of income range)
Over $  18203 but not over $  23804    $   1938, plus 19.00% of excess over $  18203    11.76% effective overall tax rate(computed on tax on middle of income range)
Over $  23804 but not over $  30245    $   3002, plus 21.00% of excess over $  23804    13.61% effective overall tax rate(computed on tax on middle of income range)
Over $  30245 but not over $  36126    $   4355, plus 24.00% of excess over $  30245    15.25% effective overall tax rate(computed on tax on middle of income range)
Over $  36126 but not over $  42007    $   5766, plus 26.00% of excess over $  36126    16.72% effective overall tax rate(computed on tax on middle of income range)
Over $  42007 but not over $  50968    $   7295, plus 30.00% of excess over $  42007    18.58% effective overall tax rate(computed on tax on middle of income range)
Over $  50968 but not over $  65810    $   9984, plus 34.00% of excess over $  50968    21.42% effective overall tax rate(computed on tax on middle of income range)
Over $  65810 but not over $  80653    $  15030, plus 39.00% of excess over $  65810    24.48% effective overall tax rate(computed on tax on middle of income range)
Over $  80653 but not over $  95495    $  20818, plus 44.00% of excess over $  80653    27.34% effective overall tax rate(computed on tax on middle of income range)
Over $  95495 but not over $ 116218    $  27349, plus 49.00% of excess over $  95495    30.63% effective overall tax rate(computed on tax on middle of income range)
Over $ 116218 but not over $ 154864    $  37503, plus 55.00% of excess over $ 116218    35.51% effective overall tax rate(computed on tax on middle of income range)
Over $ 154864 but not over $ 229076    $  58759, plus 63.00% of excess over $ 154864    42.79% effective overall tax rate(computed on tax on middle of income range)
Over $ 229076 but not over $ 303287    $ 105512, plus 68.00% of excess over $ 229076    49.12% effective overall tax rate(computed on tax on middle of income range)
Over $ 303287 ........................ $ 155976, plus 70.00% of excess over $ 303287    51.43% <=> 70.00% effective overall tax rate as income goes to infinity
                                                                              1980     1954                                               using exact decimal values of taxes (not integers)
                                                                              ____     ____
taxable income in 2013 dollars $     10000     tax due in  2013 dollars $      508     2000     percentage of taxable income=  5.08%    for tax year 1980  percentage of 1954 taxes  25.39%
taxable income in 2013 dollars $     20000     tax due in  2013 dollars $     2279     4057     percentage of taxable income= 11.40%    for tax year 1980  percentage of 1954 taxes  56.19%
taxable income in 2013 dollars $     30000     tax due in  2013 dollars $     4303     6257     percentage of taxable income= 14.34%    for tax year 1980  percentage of 1954 taxes  68.78%
taxable income in 2013 dollars $     40000     tax due in  2013 dollars $     6773     8684     percentage of taxable income= 16.93%    for tax year 1980  percentage of 1954 taxes  78.00%
taxable income in 2013 dollars $     50000     tax due in  2013 dollars $     9693    11284     percentage of taxable income= 19.39%    for tax year 1980  percentage of 1954 taxes  85.90%
taxable income in 2013 dollars $     60000     tax due in  2013 dollars $    13054    14226     percentage of taxable income= 21.76%    for tax year 1980  percentage of 1954 taxes  91.77%
taxable income in 2013 dollars $     70000     tax due in  2013 dollars $    16664    17280     percentage of taxable income= 23.81%    for tax year 1980  percentage of 1954 taxes  96.43%
taxable income in 2013 dollars $     80000     tax due in  2013 dollars $    20564    20680     percentage of taxable income= 25.70%    for tax year 1980  percentage of 1954 taxes  99.44%
taxable income in 2013 dollars $     90000     tax due in  2013 dollars $    24931    24249     percentage of taxable income= 27.70%    for tax year 1980  percentage of 1954 taxes  102.81%
taxable income in 2013 dollars $    100000     tax due in  2013 dollars $    29557    28049     percentage of taxable income= 29.56%    for tax year 1980  percentage of 1954 taxes  105.37%
taxable income in 2013 dollars $    150000     tax due in  2013 dollars $    56083    50981     percentage of taxable income= 37.39%    for tax year 1980  percentage of 1954 taxes  110.01%
taxable income in 2013 dollars $    200000     tax due in  2013 dollars $    87194    78540     percentage of taxable income= 43.60%    for tax year 1980  percentage of 1954 taxes  111.02%
taxable income in 2013 dollars $    250000     tax due in  2013 dollars $   119741   108849     percentage of taxable income= 47.90%    for tax year 1980  percentage of 1954 taxes  110.01%
taxable income in 2013 dollars $    300000     tax due in  2013 dollars $   153741   140614     percentage of taxable income= 51.25%    for tax year 1980  percentage of 1954 taxes  109.34%
taxable income in 2013 dollars $    350000     tax due in  2013 dollars $   188675   174075     percentage of taxable income= 53.91%    for tax year 1980  percentage of 1954 taxes  108.39%
taxable income in 2013 dollars $    400000     tax due in  2013 dollars $   223675   209251     percentage of taxable income= 55.92%    for tax year 1980  percentage of 1954 taxes  106.89%
taxable income in 2013 dollars $    450000     tax due in  2013 dollars $   258675   245884     percentage of taxable income= 57.48%    for tax year 1980  percentage of 1954 taxes  105.20%
taxable income in 2013 dollars $    500000     tax due in  2013 dollars $   293675   283384     percentage of taxable income= 58.73%    for tax year 1980  percentage of 1954 taxes  103.63%
taxable income in 2013 dollars $    600000     tax due in  2013 dollars $   363675   360943     percentage of taxable income= 60.61%    for tax year 1980  percentage of 1954 taxes  100.76%
taxable income in 2013 dollars $    700000     tax due in  2013 dollars $   433675   442341     percentage of taxable income= 61.95%    for tax year 1980  percentage of 1954 taxes  98.04%
taxable income in 2013 dollars $    800000     tax due in  2013 dollars $   503675   527179     percentage of taxable income= 62.96%    for tax year 1980  percentage of 1954 taxes  95.54%
taxable income in 2013 dollars $    900000     tax due in  2013 dollars $   573675   615023     percentage of taxable income= 63.74%    for tax year 1980  percentage of 1954 taxes  93.28%
taxable income in 2013 dollars $   1000000     tax due in  2013 dollars $   643675   704023     percentage of taxable income= 64.37%    for tax year 1980  percentage of 1954 taxes  91.43%

1981 tax rate schedule with ORIGINAL dollar figures(for SINGLE taxpayer)
Historical data for the marginal rates was obtained at the Tax Foundation website at [U.S. Federal Individual Income Tax Rates History, 1913-2011 (Nominal and Inflation-Adjusted Brackets)]
Computation of the actual taxes due and the effective overall tax rate at each level were done by Jeff Sagarin.

Not over $   2300 ...................................  0.00% of the taxable income       0.00% effective overall tax rate
Over $   2300 but not over $   3400    $      0, plus 14.00% of excess over $   2300     2.70% effective overall tax rate(computed on tax on middle of income range)
Over $   3400 but not over $   4400    $    154, plus 16.00% of excess over $   3400     6.00% effective overall tax rate(computed on tax on middle of income range)
Over $   4400 but not over $   6500    $    314, plus 18.00% of excess over $   4400     9.23% effective overall tax rate(computed on tax on middle of income range)
Over $   6500 but not over $   8500    $    692, plus 19.00% of excess over $   6500    11.76% effective overall tax rate(computed on tax on middle of income range)
Over $   8500 but not over $  10800    $   1072, plus 21.00% of excess over $   8500    13.61% effective overall tax rate(computed on tax on middle of income range)
Over $  10800 but not over $  12900    $   1555, plus 24.00% of excess over $  10800    15.25% effective overall tax rate(computed on tax on middle of income range)
Over $  12900 but not over $  15000    $   2059, plus 26.00% of excess over $  12900    16.72% effective overall tax rate(computed on tax on middle of income range)
Over $  15000 but not over $  18200    $   2605, plus 30.00% of excess over $  15000    18.58% effective overall tax rate(computed on tax on middle of income range)
Over $  18200 but not over $  23500    $   3565, plus 34.00% of excess over $  18200    21.42% effective overall tax rate(computed on tax on middle of income range)
Over $  23500 but not over $  28800    $   5367, plus 39.00% of excess over $  23500    24.48% effective overall tax rate(computed on tax on middle of income range)
Over $  28800 but not over $  34100    $   7434, plus 44.00% of excess over $  28800    27.34% effective overall tax rate(computed on tax on middle of income range)
Over $  34100 but not over $  41500    $   9766, plus 49.00% of excess over $  34100    30.63% effective overall tax rate(computed on tax on middle of income range)
Over $  41500 but not over $  55300    $  13392, plus 55.00% of excess over $  41500    35.51% effective overall tax rate(computed on tax on middle of income range)
Over $  55300 but not over $  81800    $  20982, plus 63.00% of excess over $  55300    42.79% effective overall tax rate(computed on tax on middle of income range)
Over $  81800 but not over $ 108300    $  37677, plus 68.00% of excess over $  81800    49.12% effective overall tax rate(computed on tax on middle of income range)
Over $ 108300 ........................ $  55697, plus 70.00% of excess over $ 108300    51.43% <=> 70.00% effective overall tax rate as income goes to infinity
1981 tax rate schedule with figures INFLATION-ADJUSTED to 2013 dollars(for SINGLE taxpayer) ... the multiplier is 2.538569857 based on the average of the last 12 monthly figures through and including April 2013 released in mid-May 2013)
Inflation multiplier was determined from Bureau of Labor Statistics at [CPI Inflation Calculator | Historical Consumer Price Index]
Computation of the actual taxes due and the effective overall tax rate at each level were done by Jeff Sagarin.

Not over $   5839 ...................................  0.00% of the taxable income       0.00% effective overall tax rate
Over $   5839 but not over $   8631    $      0, plus 14.00% of excess over $   5839     2.70% effective overall tax rate(computed on tax on middle of income range)
Over $   8631 but not over $  11170    $    391, plus 16.00% of excess over $   8631     6.00% effective overall tax rate(computed on tax on middle of income range)
Over $  11170 but not over $  16501    $    797, plus 18.00% of excess over $  11170     9.23% effective overall tax rate(computed on tax on middle of income range)
Over $  16501 but not over $  21578    $   1757, plus 19.00% of excess over $  16501    11.76% effective overall tax rate(computed on tax on middle of income range)
Over $  21578 but not over $  27417    $   2721, plus 21.00% of excess over $  21578    13.61% effective overall tax rate(computed on tax on middle of income range)
Over $  27417 but not over $  32748    $   3947, plus 24.00% of excess over $  27417    15.25% effective overall tax rate(computed on tax on middle of income range)
Over $  32748 but not over $  38079    $   5227, plus 26.00% of excess over $  32748    16.72% effective overall tax rate(computed on tax on middle of income range)
Over $  38079 but not over $  46202    $   6613, plus 30.00% of excess over $  38079    18.58% effective overall tax rate(computed on tax on middle of income range)
Over $  46202 but not over $  59656    $   9050, plus 34.00% of excess over $  46202    21.42% effective overall tax rate(computed on tax on middle of income range)
Over $  59656 but not over $  73111    $  13625, plus 39.00% of excess over $  59656    24.48% effective overall tax rate(computed on tax on middle of income range)
Over $  73111 but not over $  86565    $  18872, plus 44.00% of excess over $  73111    27.34% effective overall tax rate(computed on tax on middle of income range)
Over $  86565 but not over $ 105351    $  24792, plus 49.00% of excess over $  86565    30.63% effective overall tax rate(computed on tax on middle of income range)
Over $ 105351 but not over $ 140383    $  33997, plus 55.00% of excess over $ 105351    35.51% effective overall tax rate(computed on tax on middle of income range)
Over $ 140383 but not over $ 207655    $  53264, plus 63.00% of excess over $ 140383    42.79% effective overall tax rate(computed on tax on middle of income range)
Over $ 207655 but not over $ 274927    $  95646, plus 68.00% of excess over $ 207655    49.12% effective overall tax rate(computed on tax on middle of income range)
Over $ 274927 ........................ $ 141391, plus 70.00% of excess over $ 274927    51.43% <=> 70.00% effective overall tax rate as income goes to infinity
                                                                              1981     1954                                               using exact decimal values of taxes (not integers)
                                                                              ____     ____
taxable income in 2013 dollars $     10000     tax due in  2013 dollars $      610     2000     percentage of taxable income=  6.10%    for tax year 1981  percentage of 1954 taxes  30.50%
taxable income in 2013 dollars $     20000     tax due in  2013 dollars $     2422     4057     percentage of taxable income= 12.11%    for tax year 1981  percentage of 1954 taxes  59.69%
taxable income in 2013 dollars $     30000     tax due in  2013 dollars $     4568     6257     percentage of taxable income= 15.23%    for tax year 1981  percentage of 1954 taxes  73.00%
taxable income in 2013 dollars $     40000     tax due in  2013 dollars $     7189     8684     percentage of taxable income= 17.97%    for tax year 1981  percentage of 1954 taxes  82.79%
taxable income in 2013 dollars $     50000     tax due in  2013 dollars $    10341    11284     percentage of taxable income= 20.68%    for tax year 1981  percentage of 1954 taxes  91.64%
taxable income in 2013 dollars $     60000     tax due in  2013 dollars $    13759    14226     percentage of taxable income= 22.93%    for tax year 1981  percentage of 1954 taxes  96.72%
taxable income in 2013 dollars $     70000     tax due in  2013 dollars $    17659    17280     percentage of taxable income= 25.23%    for tax year 1981  percentage of 1954 taxes  102.19%
taxable income in 2013 dollars $     80000     tax due in  2013 dollars $    21903    20680     percentage of taxable income= 27.38%    for tax year 1981  percentage of 1954 taxes  105.91%
taxable income in 2013 dollars $     90000     tax due in  2013 dollars $    26475    24249     percentage of taxable income= 29.42%    for tax year 1981  percentage of 1954 taxes  109.18%
taxable income in 2013 dollars $    100000     tax due in  2013 dollars $    31375    28049     percentage of taxable income= 31.37%    for tax year 1981  percentage of 1954 taxes  111.86%
taxable income in 2013 dollars $    150000     tax due in  2013 dollars $    59323    50981     percentage of taxable income= 39.55%    for tax year 1981  percentage of 1954 taxes  116.36%
taxable income in 2013 dollars $    200000     tax due in  2013 dollars $    90823    78540     percentage of taxable income= 45.41%    for tax year 1981  percentage of 1954 taxes  115.64%
taxable income in 2013 dollars $    250000     tax due in  2013 dollars $   124440   108849     percentage of taxable income= 49.78%    for tax year 1981  percentage of 1954 taxes  114.32%
taxable income in 2013 dollars $    300000     tax due in  2013 dollars $   158942   140614     percentage of taxable income= 52.98%    for tax year 1981  percentage of 1954 taxes  113.03%
taxable income in 2013 dollars $    350000     tax due in  2013 dollars $   193942   174075     percentage of taxable income= 55.41%    for tax year 1981  percentage of 1954 taxes  111.41%
taxable income in 2013 dollars $    400000     tax due in  2013 dollars $   228942   209251     percentage of taxable income= 57.24%    for tax year 1981  percentage of 1954 taxes  109.41%
taxable income in 2013 dollars $    450000     tax due in  2013 dollars $   263942   245884     percentage of taxable income= 58.65%    for tax year 1981  percentage of 1954 taxes  107.34%
taxable income in 2013 dollars $    500000     tax due in  2013 dollars $   298942   283384     percentage of taxable income= 59.79%    for tax year 1981  percentage of 1954 taxes  105.49%
taxable income in 2013 dollars $    600000     tax due in  2013 dollars $   368942   360943     percentage of taxable income= 61.49%    for tax year 1981  percentage of 1954 taxes  102.22%
taxable income in 2013 dollars $    700000     tax due in  2013 dollars $   438942   442341     percentage of taxable income= 62.71%    for tax year 1981  percentage of 1954 taxes  99.23%
taxable income in 2013 dollars $    800000     tax due in  2013 dollars $   508942   527179     percentage of taxable income= 63.62%    for tax year 1981  percentage of 1954 taxes  96.54%
taxable income in 2013 dollars $    900000     tax due in  2013 dollars $   578942   615023     percentage of taxable income= 64.33%    for tax year 1981  percentage of 1954 taxes  94.13%
taxable income in 2013 dollars $   1000000     tax due in  2013 dollars $   648942   704023     percentage of taxable income= 64.89%    for tax year 1981  percentage of 1954 taxes  92.18%

1982 tax rate schedule with ORIGINAL dollar figures(for SINGLE taxpayer)
Historical data for the marginal rates was obtained at the Tax Foundation website at [U.S. Federal Individual Income Tax Rates History, 1913-2011 (Nominal and Inflation-Adjusted Brackets)]
Computation of the actual taxes due and the effective overall tax rate at each level were done by Jeff Sagarin.

Not over $   2300 ...................................  0.00% of the taxable income       0.00% effective overall tax rate
Over $   2300 but not over $   3400    $      0, plus 12.00% of excess over $   2300     2.32% effective overall tax rate(computed on tax on middle of income range)
Over $   3400 but not over $   4400    $    132, plus 14.00% of excess over $   3400     5.18% effective overall tax rate(computed on tax on middle of income range)
Over $   4400 but not over $   6500    $    272, plus 16.00% of excess over $   4400     8.07% effective overall tax rate(computed on tax on middle of income range)
Over $   6500 but not over $   8500    $    608, plus 17.00% of excess over $   6500    10.37% effective overall tax rate(computed on tax on middle of income range)
Over $   8500 but not over $  10800    $    948, plus 19.00% of excess over $   8500    12.09% effective overall tax rate(computed on tax on middle of income range)
Over $  10800 but not over $  12900    $   1385, plus 22.00% of excess over $  10800    13.64% effective overall tax rate(computed on tax on middle of income range)
Over $  12900 but not over $  15000    $   1847, plus 23.00% of excess over $  12900    14.97% effective overall tax rate(computed on tax on middle of income range)
Over $  15000 but not over $  18200    $   2330, plus 27.00% of excess over $  15000    16.64% effective overall tax rate(computed on tax on middle of income range)
Over $  18200 but not over $  23500    $   3194, plus 31.00% of excess over $  18200    19.26% effective overall tax rate(computed on tax on middle of income range)
Over $  23500 but not over $  28800    $   4837, plus 35.00% of excess over $  23500    22.04% effective overall tax rate(computed on tax on middle of income range)
Over $  28800 but not over $  34100    $   6692, plus 40.00% of excess over $  28800    24.65% effective overall tax rate(computed on tax on middle of income range)
Over $  34100 but not over $  41500    $   8812, plus 44.00% of excess over $  34100    27.62% effective overall tax rate(computed on tax on middle of income range)
Over $  41500 ........................ $  12068, plus 50.00% of excess over $  41500    29.08% <=> 50.00% effective overall tax rate as income goes to infinity
1982 tax rate schedule with figures INFLATION-ADJUSTED to 2013 dollars(for SINGLE taxpayer) ... the multiplier is 2.391253886 based on the average of the last 12 monthly figures through and including April 2013 released in mid-May 2013)
Inflation multiplier was determined from Bureau of Labor Statistics at [CPI Inflation Calculator | Historical Consumer Price Index]
Computation of the actual taxes due and the effective overall tax rate at each level were done by Jeff Sagarin.

Not over $   5500 ...................................  0.00% of the taxable income       0.00% effective overall tax rate
Over $   5500 but not over $   8130    $      0, plus 12.00% of excess over $   5500     2.32% effective overall tax rate(computed on tax on middle of income range)
Over $   8130 but not over $  10522    $    316, plus 14.00% of excess over $   8130     5.18% effective overall tax rate(computed on tax on middle of income range)
Over $  10522 but not over $  15543    $    650, plus 16.00% of excess over $  10522     8.07% effective overall tax rate(computed on tax on middle of income range)
Over $  15543 but not over $  20326    $   1454, plus 17.00% of excess over $  15543    10.37% effective overall tax rate(computed on tax on middle of income range)
Over $  20326 but not over $  25826    $   2267, plus 19.00% of excess over $  20326    12.09% effective overall tax rate(computed on tax on middle of income range)
Over $  25826 but not over $  30847    $   3312, plus 22.00% of excess over $  25826    13.64% effective overall tax rate(computed on tax on middle of income range)
Over $  30847 but not over $  35869    $   4417, plus 23.00% of excess over $  30847    14.97% effective overall tax rate(computed on tax on middle of income range)
Over $  35869 but not over $  43521    $   5572, plus 27.00% of excess over $  35869    16.64% effective overall tax rate(computed on tax on middle of income range)
Over $  43521 but not over $  56194    $   7638, plus 31.00% of excess over $  43521    19.26% effective overall tax rate(computed on tax on middle of income range)
Over $  56194 but not over $  68868    $  11566, plus 35.00% of excess over $  56194    22.04% effective overall tax rate(computed on tax on middle of income range)
Over $  68868 but not over $  81542    $  16002, plus 40.00% of excess over $  68868    24.65% effective overall tax rate(computed on tax on middle of income range)
Over $  81542 but not over $  99237    $  21072, plus 44.00% of excess over $  81542    27.62% effective overall tax rate(computed on tax on middle of income range)
Over $  99237 ........................ $  28858, plus 50.00% of excess over $  99237    29.08% <=> 50.00% effective overall tax rate as income goes to infinity
                                                                              1982     1954                                               using exact decimal values of taxes (not integers)
                                                                              ____     ____
taxable income in 2013 dollars $     10000     tax due in  2013 dollars $      577     2000     percentage of taxable income=  5.77%    for tax year 1982  percentage of 1954 taxes  28.87%
taxable income in 2013 dollars $     20000     tax due in  2013 dollars $     2212     4057     percentage of taxable income= 11.06%    for tax year 1982  percentage of 1954 taxes  54.51%
taxable income in 2013 dollars $     30000     tax due in  2013 dollars $     4230     6257     percentage of taxable income= 14.10%    for tax year 1982  percentage of 1954 taxes  67.61%
taxable income in 2013 dollars $     40000     tax due in  2013 dollars $     6687     8684     percentage of taxable income= 16.72%    for tax year 1982  percentage of 1954 taxes  77.00%
taxable income in 2013 dollars $     50000     tax due in  2013 dollars $     9646    11284     percentage of taxable income= 19.29%    for tax year 1982  percentage of 1954 taxes  85.48%
taxable income in 2013 dollars $     60000     tax due in  2013 dollars $    12898    14226     percentage of taxable income= 21.50%    for tax year 1982  percentage of 1954 taxes  90.67%
taxable income in 2013 dollars $     70000     tax due in  2013 dollars $    16455    17280     percentage of taxable income= 23.51%    for tax year 1982  percentage of 1954 taxes  95.22%
taxable income in 2013 dollars $     80000     tax due in  2013 dollars $    20455    20680     percentage of taxable income= 25.57%    for tax year 1982  percentage of 1954 taxes  98.91%
taxable income in 2013 dollars $     90000     tax due in  2013 dollars $    24793    24249     percentage of taxable income= 27.55%    for tax year 1982  percentage of 1954 taxes  102.24%
taxable income in 2013 dollars $    100000     tax due in  2013 dollars $    29239    28049     percentage of taxable income= 29.24%    for tax year 1982  percentage of 1954 taxes  104.24%
taxable income in 2013 dollars $    150000     tax due in  2013 dollars $    54239    50981     percentage of taxable income= 36.16%    for tax year 1982  percentage of 1954 taxes  106.39%
taxable income in 2013 dollars $    200000     tax due in  2013 dollars $    79239    78540     percentage of taxable income= 39.62%    for tax year 1982  percentage of 1954 taxes  100.89%
taxable income in 2013 dollars $    250000     tax due in  2013 dollars $   104239   108849     percentage of taxable income= 41.70%    for tax year 1982  percentage of 1954 taxes  95.77%
taxable income in 2013 dollars $    300000     tax due in  2013 dollars $   129239   140614     percentage of taxable income= 43.08%    for tax year 1982  percentage of 1954 taxes  91.91%
taxable income in 2013 dollars $    350000     tax due in  2013 dollars $   154239   174075     percentage of taxable income= 44.07%    for tax year 1982  percentage of 1954 taxes  88.61%
taxable income in 2013 dollars $    400000     tax due in  2013 dollars $   179239   209251     percentage of taxable income= 44.81%    for tax year 1982  percentage of 1954 taxes  85.66%
taxable income in 2013 dollars $    450000     tax due in  2013 dollars $   204239   245884     percentage of taxable income= 45.39%    for tax year 1982  percentage of 1954 taxes  83.06%
taxable income in 2013 dollars $    500000     tax due in  2013 dollars $   229239   283384     percentage of taxable income= 45.85%    for tax year 1982  percentage of 1954 taxes  80.89%
taxable income in 2013 dollars $    600000     tax due in  2013 dollars $   279239   360943     percentage of taxable income= 46.54%    for tax year 1982  percentage of 1954 taxes  77.36%
taxable income in 2013 dollars $    700000     tax due in  2013 dollars $   329239   442341     percentage of taxable income= 47.03%    for tax year 1982  percentage of 1954 taxes  74.43%
taxable income in 2013 dollars $    800000     tax due in  2013 dollars $   379239   527179     percentage of taxable income= 47.40%    for tax year 1982  percentage of 1954 taxes  71.94%
taxable income in 2013 dollars $    900000     tax due in  2013 dollars $   429239   615023     percentage of taxable income= 47.69%    for tax year 1982  percentage of 1954 taxes  69.79%
taxable income in 2013 dollars $   1000000     tax due in  2013 dollars $   479239   704023     percentage of taxable income= 47.92%    for tax year 1982  percentage of 1954 taxes  68.07%

1983 tax rate schedule with ORIGINAL dollar figures(for SINGLE taxpayer)
Historical data for the marginal rates was obtained at the Tax Foundation website at [U.S. Federal Individual Income Tax Rates History, 1913-2011 (Nominal and Inflation-Adjusted Brackets)]
Computation of the actual taxes due and the effective overall tax rate at each level were done by Jeff Sagarin.

Not over $   2300 ...................................  0.00% of the taxable income       0.00% effective