Calculator

Federal Income Tax Calculator

Enter your gross income, filing status, and deduction choice to estimate your 2024 US federal income tax liability.

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All calculations run in your browser. Nothing is sent to a server.

FAQ

About this calculator

Which year's brackets does this use?

It uses the 2024 US federal income tax brackets and standard deduction amounts. Brackets adjust each year for inflation.

What does "marginal rate" mean?

It is the rate applied to your last dollar of taxable income — not your whole income. See our guide on tax brackets for a worked example.

Does this include state tax, FICA, or credits?

No. This calculator focuses on federal income tax only. For payroll withholding, use the Salary Tax Calculator. For refund estimates with credits, use the Tax Refund Estimator.

Educational only: Estimates use simplified assumptions. Verify against IRS.gov and consult a tax professional before filing.