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report
December 1, 2007
This page contains CBO's most recent estimates of federal effective tax rates (taxes as a percentage of income) across household income groups for the four largest sources of federal revenues--individual income taxes, social insurance (payroll) taxes, corporate income taxes, and excise taxes--as well as the total effective rate for the four taxes combined. The page also contains estimates of average before- and after-tax household income, counts of households, and shares of taxes, income, and households for each income group; information relating to the methodology used to construct the estimates; supplementary estimates for different household types; and a comparison of income and payroll taxes.