Average effective tax rates, number of tax returns, total adjusted gross income, and total tax after credits, for highest AGI groups, 1945 to 2020.

Sources of income, adjustments, and itemized deductions for returns with itemized deductions, by size of adjusted gross income.

Sources of income, adjustments, and itemized deductions for returns with itemized deductions, by marital status.

Historical percentage of individual income tax returns, classified by the highest applicable statutory marginal rate, 1958-2016.

Income limits and mean income for each quintile of household income, 1967 through 2024.

percentage of federal taxes generated at each statutory marginal rate.

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

Historical top tax rates from 1913-2015