Estimate your 2024 US federal income tax with a bracket breakdown, average and marginal rates, and an automatic standard deduction by filing status.
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The US federal income tax is progressive: each slice of your taxable income is taxed at its own rate, from 10% up to 37%. As you move into a higher bracket, only the dollars above the bracket threshold are taxed at the higher rate — your earlier income keeps its rate. The tool walks the 2024 brackets for your filing status and sums the tax from each one.
The US uses a progressive bracket system: each slice of your taxable income is taxed at its own rate. This tool takes your income, subtracts your deduction if applied, and walks the 2024 federal brackets for your filing status — 10% on the first slice, 12% on the next, and so on up to 37% — summing the tax from each bracket.
The average rate is your total federal tax divided by your taxable income — the effective percentage you actually pay. The marginal rate is the rate applied to your very last dollar of income. Moving into a higher bracket does not re-tax your earlier income; only the dollars above the bracket threshold pay the higher rate.
It is a fixed amount the IRS lets you subtract from your income before tax, without itemizing. For 2024 it is $14,600 for single filers, $29,200 for married filing jointly, and $21,900 for head of household. This tool pre-fills the correct amount when you pick your filing status.
It is a close estimate of your 2024 federal tax only, using the official 2024 brackets and standard deductions. It does not include state or local taxes, the child tax credit, other credits, taxes on investment income, or the AMT. For your actual return, rely on the IRS or a tax professional — this tool is for planning and budgeting, not tax advice.
No. Every number is computed locally in your browser with JavaScript. The page works fully offline once loaded, and nothing you enter is stored or transmitted.
If you just finished with US Income Tax Calculator, the natural next steps are 401k Calculator, Cross-border Tax Estimator, Salary Converter, or browse every tool in Cross-border Finance.