Federal Income Tax Calculator
How much federal AND state income tax do you owe on your salary? This calculator breaks down your total tax burden using the 2026 federal brackets plus the latest income tax rules for all 50 US states and DC. Enter your gross income, filing status, and state of residence to see federal tax, FICA, state tax, your effective and marginal rates, and your after-tax income — both annual and monthly.
How This Calculation Works
Your gross income is first reduced by the standard deduction ($16,100 for single filers, $32,200 for married filing jointly in 2026) to determine your taxable income. Federal income tax is then calculated using progressive brackets, where each portion of income is taxed at its corresponding rate (10% to 37%). Social Security tax (6.2%) applies to earnings up to $184,500, and Medicare tax (1.45%) applies to all earnings. Your effective tax rate represents the average percentage of your total income paid in taxes.