| Fiscal Year | Individual Income Taxes as % GDP | Corporation Income Taxes as % GDP | GDP in Billions of Constant 1996 dollars | Individual Income Taxes in Billions of Constant 1996 dollars | Corporation Income Taxes in Billions of Constant 1996 dollars | % Corporate to Individual Income Taxes |
| 1940 | 0.9 | 1.2 | 96.5 | 8.685 | 11.58 | 133.3% |
| 1941 | 1.2 | 1.9 | 113.9 | 13.668 | 21.641 | 158.3% |
| 1942 | 2.3 | 3.3 | 144.2 | 33.166 | 47.586 | 143.5% |
| 1943 | 3.6 | 5.3 | 180.0 | 64.8 | 95.4 | 147.2% |
| 1944 | 9.4 | 7.1 | 209.0 | 196.46 | 148.39 | 75.5% |
| 1945 | 8.3 | 7.2 | 221.4 | 183.762 | 159.408 | 86.7% |
| 1946 | 7.2 | 5.3 | 222.9 | 160.488 | 118.137 | 73.6% |
| 1947 | 7.6 | 3.7 | 234.9 | 178.524 | 86.913 | 48.7% |
| 1948 | 7.5 | 3.8 | 256.6 | 192.45 | 97.508 | 50.7% |
| 1949 | 5.7 | 4.1 | 271.7 | 154.869 | 111.397 | 71.9% |
| 1950 | 5.8 | 3.8 | 273.6 | 158.688 | 103.968 | 65.5% |
| 1951 | 6.7 | 4.4 | 321.3 | 215.271 | 141.372 | 65.7% |
| 1952 | 8.0 | 6.1 | 348.9 | 279.12 | 212.829 | 76.3% |
| 1953 | 8.0 | 5.7 | 373.1 | 298.48 | 212.667 | 71.3% |
| 1954 | 7.8 | 5.6 | 378.0 | 294.84 | 211.68 | 71.8% |
| 1955 | 7.3 | 4.5 | 395.3 | 288.569 | 177.885 | 61.6% |
| 1956 | 7.5 | 4.9 | 427.6 | 320.7 | 209.524 | 65.3% |
| 1957 | 7.9 | 4.7 | 450.5 | 355.895 | 211.735 | 59.5% |
| 1958 | 7.5 | 4.4 | 460.6 | 345.45 | 202.664 | 58.7% |
| 1959 | 7.5 | 3.5 | 491.8 | 368.85 | 172.13 | 46.7% |
| 1960 | 7.8 | 4.1 | 519.8 | 405.444 | 213.118 | 52.6% |
| 1961 | 7.8 | 3.9 | 530.9 | 414.102 | 207.051 | 50.0% |
| 1962 | 8.0 | 3.6 | 568.6 | 454.88 | 204.696 | 45.0% |
| 1963 | 7.9 | 3.6 | 600.2 | 474.158 | 216.072 | 45.6% |
| 1964 | 7.6 | 3.7 | 642.3 | 488.148 | 237.651 | 48.7% |
| 1965 | 7.1 | 3.7 | 688.2 | 488.622 | 254.634 | 52.1% |
| 1966 | 7.3 | 4.0 | 757.2 | 552.756 | 302.88 | 54.8% |
| 1967 | 7.6 | 4.2 | 811.7 | 616.892 | 340.914 | 55.3% |
| 1968 | 7.9 | 3.3 | 870.0 | 687.3 | 287.1 | 41.8% |
| 1969 | 9.2 | 3.9 | 949.4 | 873.448 | 370.266 | 42.4% |
| 1970 | 8.9 | 3.2 | 1,013.7 | 902.193 | 324.384 | 36.0% |
| 1971 | 8.0 | 2.5 | 1,081.7 | 865.36 | 270.425 | 31.3% |
| 1972 | 8.0 | 2.7 | 1,178.5 | 942.8 | 318.195 | 33.8% |
| 1973 | 7.9 | 2.8 | 1,313.6 | 1037.744 | 367.808 | 35.4% |
| 1974 | 8.3 | 2.7 | 1,441.7 | 1196.611 | 389.259 | 32.5% |
| 1975 | 7.8 | 2.6 | 1,559.2 | 1216.176 | 405.392 | 33.3% |
| 1976 | 7.6 | 2.4 | 1,735.9 | 1319.284 | 416.616 | 31.6% |
| TQ | 8.4 | 1.8 | 459.2 | 385.728 | 82.656 | 21.4% |
| 1977 | 8.0 | 2.8 | 1,974.6 | 1579.68 | 552.888 | 35.0% |
| 1978 | 8.2 | 2.7 | 2,219.5 | 1819.99 | 599.265 | 32.9% |
| 1979 | 8.7 | 2.6 | 2,504.9 | 2179.263 | 651.274 | 29.9% |
| 1980 | 8.9 | 2.4 | 2,731.8 | 2431.302 | 655.632 | 27.0% |
| 1981 | 9.3 | 2.0 | 3,060.3 | 2846.079 | 612.06 | 21.5% |
| 1982 | 9.2 | 1.5 | 3,231.1 | 2972.612 | 484.665 | 16.3% |
| 1983 | 8.4 | 1.1 | 3,441.7 | 2891.028 | 378.587 | 13.1% |
| 1984 | 7.8 | 1.5 | 3,846.5 | 3000.27 | 576.975 | 19.2% |
| 1985 | 8.1 | 1.5 | 4,141.6 | 3354.696 | 621.24 | 18.5% |
| 1986 | 7.9 | 1.4 | 4,398.3 | 3474.657 | 615.762 | 17.7% |
| 1987 | 8.4 | 1.8 | 4,653.9 | 3909.276 | 837.702 | 21.4% |
| 1988 | 8.0 | 1.9 | 5,016.6 | 4013.28 | 953.154 | 23.8% |
| 1989 | 8.2 | 1.9 | 5,406.6 | 4433.412 | 1027.254 | 23.2% |
| 1990 | 8.1 | 1.6 | 5,738.4 | 4648.104 | 918.144 | 19.8% |
| 1991 | 7.9 | 1.7 | 5,927.9 | 4683.041 | 1007.743 | 21.5% |
| 1992 | 7.7 | 1.6 | 6,221.7 | 4790.709 | 995.472 | 20.8% |
| 1993 | 7.8 | 1.8 | 6,560.9 | 5117.502 | 1180.962 | 23.1% |
| 1994 | 7.8 | 2.0 | 6,948.8 | 5420.064 | 1389.76 | 25.6% |
| 1995 | 8.1 | 2.1 | 7,322.6 | 5931.306 | 1537.746 | 25.9% |
| 1996 | 8.5 | 2.2 | 7,700.1 | 6545.085 | 1694.022 | 25.9% |
| 1997 | 9.0 | 2.2 | 8,182.8 | 7364.52 | 1800.216 | 24.4% |
| 1998 | 9.6 | 2.2 | 8,636.3 | 8290.848 | 1899.986 | 22.9% |
| 1999 | 9.6 | 2.0 | 9,115.4 | 8750.784 | 1823.08 | 20.8% |
| 2000 estimate | 9.9 | 2.0 | 9,571.9 | 9476.181 | 1914.38 | 20.2% |
| 2001 estimate | 9.7 | 1.9 | 10,041.3 | 9740.061 | 1907.847 | 19.6% |
| 2002 estimate | 9.5 | 1.9 | 10,502.4 | 9977.28 | 1995.456 | 20.0% |
| 2003 estimate | 9.3 | 1.8 | 10,982.8 | 10214.004 | 1976.904 | 19.4% |
| 2004 estimate | 9.3 | 1.7 | 11,502.0 | 10696.86 | 1955.34 | 18.3% |
| 2005 estimate | 9.2 | 1.7 | 12,084.5 | 11117.74 | 2054.365 | 18.5% |