Federal Income Tax Calculator

Estimate your 2024 or 2025 federal income tax in seconds. See your effective rate, marginal bracket, and a visual breakdown โ€” completely free and private.

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Your Tax Summary

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Enter your information and click Calculate to see your results.

How Federal Income Tax Works

The United States uses a progressive tax system, meaning your income is taxed in layers called brackets. Only the income within each bracket is taxed at that bracket's rate โ€” not your entire income.

2025 Federal Tax Brackets (Single)

Rate Income Range
10% $0 โ€“ $11,925
12% $11,926 โ€“ $48,475
22% $48,476 โ€“ $103,350
24% $103,351 โ€“ $197,300
32% $197,301 โ€“ $250,525
35% $250,526 โ€“ $626,350
37% $626,351+

Effective vs. Marginal Tax Rate

Your marginal tax rate is the rate on your last dollar of income. Your effective tax rate is the actual percentage of your total income that goes to federal tax. For most people, the effective rate is significantly lower than the marginal rate.

Standard Deduction for 2025

This calculator provides estimates for educational purposes. For tax advice, consult a qualified tax professional or visit IRS.gov.