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This page shows Tax-Brackets.org's archived Federal tax brackets for tax year 1978. This means that these brackets applied to all income earned in 1977, and the tax return that uses these tax rates was due in April 1978.
Federal income tax brackets were last changed two years prior to 1978 for tax year 1976, and the tax rates were previously changed in 1970.
Tax-Brackets.org also maintains an archive of important Federal income tax exemption amounts, including the Federal Standard Deduction, the Federal Personal Exemption, and the Federal Dependent Deduction. The values of these deductions for tax year 1978 are as follows:
Disclaimer: While we do our best to keep our historical Federal income tax rates up to date and complete, we cannot be held liable for errors or omissions. Is info on this page missing or out-of-date? Please let us know so we can fix it!
Tax Data Sources:
The Federal tax brackets on this page sourced from the Federal Department of Revenue in 1978. Please contact us if any of our Federal tax data is incorrect or out of date.