Income Tax Calculator
Estimate your federal and state income tax liability for the year.
Total Tax Liability
$17,020
Net after tax: $57,980/year
| Category | Amount | Rate |
|---|---|---|
| Gross Income | $75,000 | 100% |
| Federal Income Tax | $8,341 | 11.1% |
| State Income Tax (California) | $2,941 | 3.9% |
| Social Security | $4,650 | 6.2% |
| Medicare | $1,088 | 1.5% |
| Total Tax | $17,020 | 22.7% |
| After-Tax Income | $57,980 | 77.3% |
How This Is Calculated
This income tax calculator estimates your total annual tax liability by applying federal income tax, state income tax, and FICA to your gross income.
Federal income tax uses IRS 2024 progressive brackets (Publication 15-T). Taxable income = gross income − standard deduction ($14,600 single / $29,200 married joint / $14,600 married separately / $21,900 head of household). Brackets range from 10% to 37%.
State income tax depends on your state's tax structure. Seven states have no income tax. Others use flat rates or progressive brackets. This calculator uses each state's published 2024 rates.
FICA includes Social Security (6.2% on wages up to $168,600) and Medicare (1.45% on all wages, plus 0.9% Additional Medicare Tax above $200K single / $250K married jointly).
Based on IRS 2024 federal tax brackets (Publication 15-T) and published state tax rates. Standard deduction applied: $14,600 single / $29,200 married joint. FICA: 6.2% Social Security up to $168,600 wage base + 1.45% Medicare (+ 0.9% Additional Medicare above $200K single).
Frequently Asked Questions
How is federal income tax calculated?
Federal income tax is calculated using progressive brackets. Your taxable income equals gross income minus the standard deduction. Each dollar is taxed at the rate of the bracket it falls into. For 2024, brackets range from 10% to 37%.
What is the standard deduction for 2024?
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.
How does state income tax work?
State income tax varies by state. Seven states have no income tax (Alaska, Florida, Nevada, South Dakota, Tennessee, Texas, Washington). Others use flat rates (e.g., Colorado at 4.40%) or progressive brackets (e.g., California up to 13.3%).
What is the difference between effective and marginal tax rate?
Effective tax rate is total tax divided by total income — your average rate. Marginal tax rate is the rate applied to your last dollar of income — the highest bracket you reach.
Does this include FICA taxes?
Yes, this calculator includes FICA (Social Security at 6.2% up to $168,600 wage base, Medicare at 1.45% on all income, plus 0.9% Additional Medicare Tax on high earners) alongside federal and state income tax.
Related Calculators
⚠️ Estimates only. Actual tax depends on deductions, credits, and personal circumstances. Consult a tax professional.