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United States tax calculators

Calculate supported United States taxes using current rules backed by official sources. Each tool states its tax period, exclusions and source basis.

USD

US Federal Income Tax Calculator 2026

Federal tax on taxable income by filing status.

Previous tax years

Compare current rules with period-specific historical calculators. Historical pages use separate URLs so older rates are not overwritten by current law.

Browse all historical tax years US 2025
Source and scope. TaxToolSet is independent of the tax authority. Calculations are general information and should be checked against the linked official source for your facts, residence status and special-rate income.

Frequently asked questions

What does the United States page include?

It lists the United States calculators currently implemented on TaxToolSet. Open a calculator to see the tax period, scope limits and source basis for that tool.

Does TaxToolSet cover every United States tax?

No. Only implemented and source-backed tools are listed as live. Taxes outside the stated scope should be checked separately.

Can I use an older tax year?

Where a historical calculator has been implemented, the country page links to period-specific pages in the Previous tax years archive.

Page updated . This is a page update, not a new tax-rule review.