| Bracket | Taxable in Bracket | Tax |
|---|---|---|
Enter income to see breakdown | ||
Uses the official 2025 US federal income tax brackets and standard deductions for single, married filing jointly, and head of household filers. Applies the progressive bracket system automatically.
See both your marginal rate (the bracket on your last dollar) and your effective rate (total tax divided by gross income), so you understand your true tax burden.
A detailed table shows exactly how much of your taxable income falls in each bracket and how much tax each bracket generates — demystifying how progressive taxation works.
All calculations run in your browser with no server calls. Your income and tax figures are never uploaded, so it is safe for sensitive financial data and works offline once loaded.
US federal income tax uses a progressive bracket system. Your taxable income (gross income minus deductions) is divided across brackets, and each portion is taxed at its bracket rate. The calculator sums the tax from each bracket to find your total federal income tax.
Your marginal tax rate is the rate on your last dollar of income — the highest bracket you reach. Your effective tax rate is your total tax divided by your gross income, which is always lower because earlier dollars are taxed at lower bracket rates.
For the 2025 tax year, the standard deduction is $15,000 for single filers, $30,000 for married filing jointly, and $22,500 for head of household. You can instead itemize deductions if your eligible expenses exceed the standard amount.
No. This calculator estimates US federal income tax only. It does not include state or local income taxes, Social Security, Medicare (FICA), or other payroll taxes, which vary by location and situation.
No. All calculations run locally in your browser with no server calls. Your income and tax figures are never uploaded, so it is safe for sensitive financial data and works offline once loaded.
This income tax calculator provides a US federal income tax estimate for the 2025 tax year for general informational purposes only and is not tax advice. It does not account for state and local taxes, FICA, tax credits, additional deductions, or other factors that affect your actual tax liability. Consult a qualified tax professional before making decisions.