Free Income Tax Calculator
Estimate your federal income tax, taxable income, refund, or amount owed.
Estimated Results
Enter your information to see your tax estimate.
Estimate only. Not tax, legal, accounting, or financial advice.
Estimate your federal income tax, taxable income, refund, or amount owed.
Enter your information to see your tax estimate.
Estimate only. Not tax, legal, accounting, or financial advice.
Income Tax Calculator Guide
This income tax calculator estimates federal income tax by using your gross income, filing status, deduction choice, federal withholding, and tax credits. It then estimates taxable income, federal tax after credits, effective tax rate, marginal tax rate, and whether you may receive a refund or owe additional federal tax.
The calculator includes gross income, standard or itemized deductions, filing status, federal withholding, and tax credits entered by the user.
Results include taxable income, estimated federal tax, refund or amount owed, effective tax rate, and marginal tax rate.
The calculator does not include every tax credit, phaseout, local tax, alternative minimum tax, Medicare surtax, or special tax situation.
No. This calculator provides an estimate only. Your actual tax result may be different based on credits, deductions, dependents, retirement contributions, business income, state taxes, and other tax rules.
Taxable income is generally the amount of income left after subtracting deductions from gross income. This calculator estimates taxable income based on the deduction option you select.
A marginal tax rate is the rate applied to the last portion of taxable income. An effective tax rate is the estimated total federal tax divided by gross income.
This page focuses on federal income tax. You can use the state calculator pages for state-specific tax information and state income tax estimates as those formulas are added.
Many taxpayers use the standard deduction, but some may itemize if their eligible deductions are higher. This calculator lets you compare either approach by changing the deduction type.
Last updated: April 2026