Estimate your 2024 federal income tax, effective rate, and after-tax income instantly.
The US uses a progressive tax system. This means different portions of your income are taxed at different rates. You only pay the higher rate on the income that falls within that bracket — not on your entire income. This calculator applies the 2024 standard deduction before calculating your tax.
Single filers: $14,600. Married filing jointly: $29,200. Head of household: $21,900. These amounts are subtracted from your gross income before calculating your taxable income.
Your marginal rate is the rate applied to your last dollar of income (your top bracket). Your effective rate is your total tax divided by your gross income — always lower than the marginal rate. Many people overestimate their taxes by confusing these two rates.
State income taxes (which vary by state), FICA taxes (Social Security 6.2% + Medicare 1.45%), capital gains taxes, or tax credits (like the Child Tax Credit or Earned Income Tax Credit). For a complete picture, consult a tax professional or use tax software.