Tax Bracket Calculator
Find your federal income tax bracket, marginal tax rate, and effective tax rate based on your taxable income and filing status.
Your Tax Information
Your Tax Rate Information
2024 Federal Income Tax Brackets
| Tax Rate | Single | Married Filing Jointly | Head of Household |
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Marginal vs Effective Tax Rate
Marginal Tax Rate is the rate you pay on your next dollar of income. The U.S. uses a progressive tax system, meaning different portions of your income are taxed at different rates.
Effective Tax Rate is your total tax divided by your total income. This represents your actual average tax rate across all your income.
For example, if you're single with $50,000 taxable income:
- First $11,600 taxed at 10% = $1,160
- Remaining $38,400 taxed at 12% = $4,608
- Total tax = $5,768
- Marginal rate = 12%
- Effective rate = 11.5% ($5,768 ÷ $50,000)
How Tax Brackets Work
Tax brackets are marginal, meaning only the income within each bracket is taxed at that rate. Going up a tax bracket never means all your income is taxed at the higher rate—only the amount above the bracket threshold.
Frequently Asked Questions
Only the portion of your income above the bracket threshold is taxed at the higher rate. A raise never reduces your take-home pay. For example, moving from $45,000 to $50,000 only subjects the extra $5,000 to a potentially higher rate, not your entire income.
Tax deductions reduce your taxable income (saving you money at your marginal rate). Tax credits directly reduce your tax bill dollar-for-dollar. A $1,000 credit saves you $1,000, while a $1,000 deduction might save you $120-$370 depending on your bracket.
Tax brackets are typically adjusted annually for inflation. Congress can also change tax rates and brackets through legislation. The brackets shown are for the 2024 tax year (returns filed in 2025).
About the Tax Bracket Calculator
Federal tax brackets are progressive: the first dollars are taxed at low rates, later dollars at higher rates. Your marginal rate is what you pay on your next dollar; your effective rate is the average across all your income. Understanding the distinction is critical for tax planning.
The Formula
Total tax = Sum over brackets of (Income in bracket) × (Bracket rate). For 2025 single filer: 10% up to $11,925; 12% to $48,475; 22% to $103,350; 24% to $197,300; 32% to $250,525; 35% to $626,350; 37% above.
Worked Example
$75,000 taxable income (single, 2025): 10% × $11,925 = $1,193. 12% × ($48,475 − $11,925) = $4,386. 22% × ($75,000 − $48,475) = $5,836. Total: $11,415. Effective rate: 15.2%. Marginal rate: 22%.
Marginal vs effective rate
Moving 'into the next bracket' only taxes the dollars above the threshold at the higher rate, not your entire income. Common misconception: 'I'll lose money getting a raise that pushes me into 22%'. False — only the raise itself is taxed at 22%.
Standard deduction lowers taxable income
2025 standard deduction: $15,000 single, $30,000 married filing jointly. Subtract from gross to get taxable income. Most filers take the standard deduction because itemized deductions don't exceed it.
Tax bracket optimisation
If you're near a bracket boundary, accelerating deductions or deferring income to stay in the lower bracket can save money. Roth conversions in low-income years (gap between retirement and Social Security) is a classic example.
Common Mistakes
- Refusing a raise because of taxes. Higher marginal rate applies only to new dollars.
- Confusing marginal and effective rates when comparing tax burdens.
- Forgetting state tax. California adds up to 13.3% on top of federal.
Frequently Asked Questions
What's the highest federal tax rate?
37% on income above $626,350 (single) for 2025.
Do capital gains use these brackets?
Long-term gains use separate brackets (0%, 15%, 20%). Short-term gains use ordinary rates above.
This calculator is for informational purposes only and does not constitute financial, tax, or legal advice. Consult a licensed professional before making significant financial decisions.