Enter your taxable income and filing status to see which federal tax bracket you fall into. View a detailed breakdown of how your income is taxed at each marginal rate, and compare your marginal rate to your effective rate.
The U.S. federal income tax uses a progressive bracket system: your income is divided into "slices," and each slice is taxed at a different rate. The bracket that contains your last dollar is your marginal bracket. Confusingly, that marginal rate isn't what you actually pay on all your income — only on the portion in that top bracket.
This calculator takes taxable income and filing status and returns your bracket-by-bracket tax breakdown, marginal rate, and effective rate. It uses the current IRS brackets and shows exactly how each dollar from $0 up to your income gets taxed.
The marginal-vs-effective distinction matters in real decisions. If you're in the 24% bracket, a $1,000 raise nets you about $760 federal. But your overall federal tax bill is probably closer to 17–18% of your taxable income (the effective rate), not 24%. Confusing these two leads to bad reasoning about everything from job offers to deduction strategies.
Taxable income: $75,000, single. 10% × $11,925 = $1,193 12% × $36,550 = $4,386 22% × $26,525 = $5,836 Total federal tax: $11,414 Effective rate: 15.2%, Marginal rate: 22% A $1,000 raise to $76K would add 22% × $1,000 = $220 to federal tax, netting $780 before payroll/state taxes.
Taxable income: $400,000, married filing jointly. At MFJ 2025 brackets, total federal tax ≈ $74,000. Effective rate: ~18.5% Marginal rate: 32% Even at the 32% bracket, only the income above $206,700 is taxed at 32% — most income is at lower rates. The progressive structure consistently produces effective rates well below marginal rates.
Use this calculator any time you need to know your marginal or effective rate — typically for one of three decisions:
1. **Deductibility decisions**: A traditional 401(k) contribution's tax benefit is your marginal rate × the contribution. At 22% marginal, $6,000 contributed saves $1,320 in federal tax.
2. **Roth vs Traditional**: Compare your current marginal rate to your expected retirement marginal rate. If retirement rate < current, traditional is usually better; if retirement rate > current, Roth wins.
3. **Income timing**: Pushing income to a low-tax year (job loss, sabbatical) vs a high-tax year matters at bracket boundaries.
This is federal-only. State income tax operates on its own bracket schedule (or is flat in some states, or doesn't exist in others). Combine for a full marginal/effective view.
Bracket thresholds adjust annually for inflation. Major bracket changes require legislation. Use the most recent IRS-published values.
Estimate your federal income tax using current brackets and deductions.
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Estimate your Earned Income Tax Credit (EITC) based on income and dependents.
Calculate the Child Tax Credit based on number of children and income.
Calculate tax savings from charitable donations and deductions.
Calculate taxes on lottery winnings with lump sum vs annuity comparison.
Total Federal Tax
$13,614
Marginal Rate
22%
Effective Rate
16.02%
After-Tax Income
$71,386
| Bracket | Rate (%) | Taxable Amount | Tax | Cumulative Tax |
|---|---|---|---|---|
| $0 - $11,925 | 10.00% | $11,925.00 | $1,192.50 | $1,192.50 |
| $11,925 - $48,475 | 12.00% | $36,550.00 | $4,386.00 | $5,578.50 |
| $48,475 - $103,350 | 22.00% | $36,525.00 | $8,035.50 | $13,614.00 |