Income Tax Calculator
Estimate US federal income tax using simplified 2025 brackets.
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Frequently asked questions
US 2025 federal income tax brackets for single filers and married-filing-jointly filers (IRS Rev. Proc. 2024-40), plus the 2025 standard deduction amounts ($15,750 single, $31,500 married filing jointly), as raised by the One Big Beautiful Bill Act (OBBBA, signed July 4, 2025). Other filing statuses (head of household, married filing separately) are not modeled.
No. This is federal income tax only. It does not include state or local income tax, Social Security or Medicare (FICA) withholding, the Alternative Minimum Tax, the Child Tax Credit, the Earned Income Tax Credit, or any other credits or itemized deductions.
Real tax returns adjust for things this calculator ignores: pre-tax retirement contributions, HSA contributions, itemized deductions, tax credits, capital gains rates, the AMT, and more. Use this as a rough estimate, not a substitute for tax software or a professional.
Your marginal rate is the rate applied to the last dollar you earned — the top bracket your income reaches. Your effective rate is your total tax divided by gross income, which is always lower because earlier dollars are taxed at lower brackets.
Last updated 2026-06-03.