Income Tax Calculator
Estimate US federal income tax (2024 single brackets).
Inputs
$
Result
Federal Tax$11,553.00
Effective Rate15.40%
After-Tax Income$63,447.00
About the Income Tax Calculator
The Income Tax Calculator estimates your federal income tax liability using the current bracket structure, given filing status and taxable income.
Calculation method
US tax uses progressive brackets — each dollar is taxed at the rate for its bracket, not one flat rate on the whole income. The tool sums tax across all applicable brackets.
Tax = Σ (bracket income × bracket rate)How to use this calculator
- Enter your taxable income (gross minus deductions).
- Choose filing status.
- Review the estimated tax.
Example
A single filer with $85,000 taxable income owes about $13,850 in federal tax — an effective rate of 16.3% though the top marginal rate is 22%.
Frequently asked questions
Marginal vs. effective tax rate?
Marginal is the rate on your next dollar of income. Effective is total tax divided by total income. Effective is always lower than marginal in a progressive system.
Does this include state tax?
No. State tax varies from 0% (TX, FL, WA) to 13.3% (CA). Add your state's tax separately for a full picture.
What about the standard deduction?
Subtract the standard deduction (or itemized) from gross income to get taxable income before using this calculator.
Disclaimer: This calculator is for informational and educational purposes only and does not constitute financial, tax, or legal advice. Consult a qualified professional for decisions specific to your situation.