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Calculate your 2024 federal income tax liability using current IRS tax brackets. Applies the standard deduction, personal exemptions, and common above-the-line deductions to your income.
Fill in the fields and click Calculate to see your results
Rates updated: 11/9/2025
Source: National Tax Authority
The US Federal Income Tax Calculator uses 2025 IRS tax brackets to estimate your federal income tax liability. Enter your gross income, filing status, and deductions to see your marginal rate, effective rate, and total tax owed. The calculator applies the 2025 standard deduction ($14,600 for single filers, $29,200 for married filing jointly) and all seven federal tax brackets: 10%, 12%, 22%, 24%, 32%, 35%, and 37%. Data sourced from IRS Revenue Procedure 2024-40.
1. Select your filing status (single, married filing jointly, married filing separately, or head of household). 2. Enter your gross annual income. 3. Enter any above-the-line deductions (IRA contributions, student loan interest, HSA contributions, etc.). 4. Click Calculate to see your estimated tax liability, marginal rate, effective rate, and after-tax income.
The 2025 federal income tax brackets for single filers are: 10% on income up to $11,925; 12% on $11,925 to $48,475; 22% on $48,475 to $103,350; 24% on $103,350 to $197,300; 32% on $197,300 to $250,525; 35% on $250,525 to $626,350; and 37% on income above $626,350. Married filing jointly brackets are approximately double these thresholds. These are set by IRS Revenue Procedure 2024-40.
Your marginal tax rate is the rate applied to your highest dollar of income — it does not mean all your income is taxed at that rate. Your effective tax rate is your total tax divided by your total income, which is always lower than your marginal rate. For example, if your marginal rate is 22%, you only pay 22% on the income within that bracket; the first $11,925 is taxed at 10%, the next portion at 12%, and so on.
The 2025 standard deduction is $14,600 for single filers and married filing separately, $29,200 for married filing jointly, and $21,900 for head of household. These amounts are inflation-adjusted annually by the IRS. Most taxpayers take the standard deduction rather than itemizing because it exceeds their itemized deductions total.
No, this calculator covers federal income tax only. State income tax rates vary by state — from 0% in states like Texas and Florida to over 13% in California. To calculate your total tax burden, add your state income tax to the federal amount shown here.
Yes, completely free with no registration required. All calculations run in your browser and we do not store or transmit your financial data.
A typical scenario using default values
{
"annual_income": 75000,
"filing_status": "single",
"deductions": 0
}