What tax year does this tool use?

This tool uses the IRS 2024 tax year brackets and standard deduction amounts, which apply to returns filed in early 2025.

Does this include state income taxes?

No. This tool only estimates federal income tax. State income tax rates and rules vary widely by state and are not included.

What is the difference between effective and marginal tax rate?

The marginal tax rate is the rate applied to your last dollar of income — the highest bracket you fall into. The effective (or average) tax rate is your total tax divided by your total income. Because the US uses progressive brackets, your effective rate is always lower than your marginal rate.

Are capital gains included?

No. This tool calculates ordinary income tax only. Qualified dividends and long-term capital gains are taxed at different rates (0%, 15%, or 20%) and are not modeled here.

What are the 2024 standard deduction amounts?

For 2024: Single — $14,600; Married Filing Jointly — $29,200; Married Filing Separately — $14,600; Head of Household — $21,900.

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Tax Calculator

Estimate your US federal income tax using 2024 tax brackets.

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关于此工具

A free, client-side US federal income tax estimator for the 2024 tax year. Enter your gross income, filing status (single, married filing jointly, married filing separately, or head of household), pre-tax deductions such as 401(k) and HSA contributions, and choose between the standard deduction or an itemized amount. The tool calculates your taxable income, breaks down the tax owed in each bracket, shows your total federal tax, effective tax rate, and marginal rate. A visual stacked bar illustrates how your income is divided among deductions, each bracket, and after-tax take-home. State taxes are not included. This tool is for estimation purposes only.

使用方法

1 Select your filing status from the dropdown.
2 Enter your total gross income for 2024.
3 Enter any pre-tax deductions such as 401(k) contributions or HSA.
4 Choose Standard Deduction (automatically filled) or enter a custom itemized amount.
5 View the tax bracket breakdown table showing tax owed per bracket.
6 Review your total tax, effective rate, marginal rate, and take-home estimate.

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