Income Tax Calculator (US)
Estimate your US federal income tax using 2024 tax brackets for single and married filing statuses.
The United States uses a progressive income tax system, meaning your income is taxed at increasing rates as it crosses certain thresholds called tax brackets. This calculator estimates your federal income tax based on the 2024 brackets.
Your taxable income is your gross income minus deductions. The standard deduction for 2024 is $13,850 for single filers and $27,700 for married couples filing jointly. If your itemized deductions exceed the standard deduction, use that total instead.
A common misconception is that moving into a higher bracket means all your income is taxed at the higher rate. In reality, only the income within each bracket is taxed at that bracket's rate. This is why your effective tax rate is always lower than your marginal rate.
For example, a single filer earning $75,000 with the standard deduction has a taxable income of $61,150. Their tax is calculated across the 10%, 12%, and 22% brackets, resulting in an effective rate around 11.5%. State and local taxes are additional and not included here.