Income Tax Calculator
Estimate your US federal income tax for 2024. See your effective tax rate, marginal rate, and tax bracket breakdown for single or married filing statuses.
Estimate only. For official tax advice, consult a CPA or use IRS tools. Tax laws change annually.
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Frequently asked
questions
The marginal tax rate is the rate applied to your last dollar of income — the highest bracket you fall into. The effective tax rate is your total tax divided by total income — your actual average rate. Most people's effective rate is significantly lower than their marginal rate because lower income is taxed at lower rates.
No — this calculator covers US federal income tax only. State income tax rates vary widely by state, from 0% (no income tax states like Texas and Florida) to over 13% (California).
Yes. For 2024, the standard deduction is $14,600 for single filers, $29,200 for married filing jointly, and $21,900 for head of household. You can override this if you plan to itemize deductions.