Income Tax Calculator

For 2024, there are seven federal tax brackets: 10%, 12%, 22%, 24%, 32%, 35%, and 37%. The income thresholds vary by filing status. For single filers, the brackets start at $11,600 (10%), $47,150 (12%), $100,525 (22%), $191,950 (24%), $243,725 (32%), $609,350 (35%), and above (37%).

Take whichever is larger. The 2024 standard deduction is $14,600 for single filers, $29,200 for married filing jointly, $14,600 for married filing separately, and $21,900 for head of household. Itemize only if your deductible expenses (mortgage interest, state/local taxes, charitable donations, medical expenses) exceed the standard deduction.

Your marginal tax rate is the rate applied to your last dollar of income — your highest bracket. Your effective tax rate is the average rate across all your income (total tax ÷ gross income). For example, someone earning $100,000 might have a 22% marginal rate but only a ~15% effective rate because the first portions of income are taxed at lower brackets.

No, this calculator estimates federal income tax only. State income tax varies significantly — some states like Texas and Florida have no income tax, while others like California can add 9–13% on top. Check our state-specific calculators for complete estimates.

This calculator focuses on federal income tax only. Social Security tax (6.2% on wages up to $184,500 in 2026, per SSA October 24 2025 announcement; the 2025 wage base was $176,100) and Medicare tax (1.45% on all wages, plus 0.9% additional Medicare tax on earnings over $200,000 single / $250,000 MFJ per IRC §3101(b)(2)) are separate payroll taxes not included in these results.