Amounts of realized capital gains, taxes paid, average effective tax rates, and maximum tax rate on long-term capital gains, for tax years 1954 to 2014. Data unavailable for recent years.

Income limits and mean income for each quintile of household income, 1967 through 2020.

Number of households, average pretax and after-tax income, shares of pretax and after-tax income, for nonelderly childless households, by comprehensive household income quintile.

Average federal tax rates for elderly headed households, by comprehensive household income quintile.

Number of households, average pretax and after-tax income, shares of pretax and after-tax income, and income category minimums for households with children, by comprehensive household income quintile.

Shares of federal tax liabilities for households with children, by comprehensive household income quintile.

Average federal tax rates for households with children, by comprehensive household income quintile.

Number of households, average pretax and after-tax income, shares of pretax and after-tax income, and income category minimums for all households, by comprehensive household income quintile.

Historical itemized charitable contributions (nominal amounts) and adjusted gross income, 1917-2017.

Standard deduction amount for single, married, and head of household filers.