Federal income tax is not one flat rate — it's a system of brackets where you pay different percentages on different portions of your income
The federal government taxes your income using tax brackets, not a single percentage. If you earn $50,000, you don't pay the same rate on every dollar. Instead, you pay a lower rate on the first portion of your income and a higher rate on the portion above that. The highest rate that applies to any of your income is called your marginal tax bracket. Your effective tax rate — the actual percentage of your total income that goes to federal tax — is almost always lower than your marginal bracket.
For 2024, there are seven federal tax brackets ranging from 10% to 37%. Which bracket you fall into depends on your filing status (single, married filing jointly, head of household, or married filing separately) and your total income for the year. The brackets adjust each year for inflation, so the income ranges change annually.
Key Takeaways
- Federal tax brackets are progressive, meaning higher portions of your income are taxed at higher rates, but you don't pay the top rate on all your income.
- Your marginal tax bracket is the highest rate that applies to you; your effective tax rate is what you actually pay as a percentage of total income.
- The 2024 federal brackets range from 10% to 37%, and the income ranges that trigger each bracket vary by filing status and change yearly.
- Deductions and credits reduce the income that gets taxed or the tax you owe, which is why two people with the same gross income may pay very different amounts.
How tax brackets actually work with an example
Suppose you're single and earned $60,000 in 2024. You don't pay one rate on all $60,000. Instead, the first $11,600 is taxed at 10%, the next portion up to $47,150 is taxed at 12%, and the remaining amount up to $60,000 is taxed at 22%. You calculate the tax on each bracket separately, then add them together. Your marginal bracket is 22%, but your effective rate is much lower — roughly 11% of your total income.
This is why earning more money doesn't push you into a higher bracket in a way that reduces your take-home pay. Moving from $60,000 to $65,000 means only the additional $5,000 is taxed at your marginal rate. The first $60,000 is taxed exactly the same way it was before.
The 2024 federal tax brackets by filing status
| Filing Status | 10% Bracket | 12% Bracket | 22% Bracket | 24% Bracket | 32% Bracket | 35% Bracket | 37% Bracket |
|---|---|---|---|---|---|---|---|
| Single | $0–$11,600 | $11,601–$47,150 | $47,151–$100,525 | $100,526–$191,950 | $191,951–$243,725 | $243,726–$609,350 | $609,351+ |
| Married Filing Jointly | $0–$23,200 | $23,201–$94,300 | $94,301–$201,050 | $201,051–$383,900 | $383,901–$487,450 | $487,451–$731,200 | $731,201+ |
| Head of Household | $0–$17,400 | $17,401–$66,550 | $66,551–$100,525 | $100,526–$191,950 | $191,951–$243,700 | $243,701–$609,350 | $609,351+ |
These ranges are for the 2024 tax year. The IRS adjusts them annually, usually in October, for the following year. If you file taxes in April 2025, you use the 2024 brackets shown above.
What reduces the income that actually gets taxed
Your taxable income — the number you actually apply the brackets to — is lower than your gross income because of deductions. The standard deduction is a flat amount you can subtract from your income before calculating tax. For 2024, the standard deduction is $14,600 for single filers and $29,200 for married couples filing jointly. If you're 65 or older, the amount is higher.
Some people instead itemize deductions, listing specific expenses like mortgage interest, property taxes, or charitable donations. You choose whichever method gives you the larger deduction. After you subtract your deduction from your gross income, you have your taxable income, and that's what you apply the brackets to.
Tax credits work differently from deductions. A credit directly reduces the tax you owe, dollar for dollar. The Child Tax Credit, Earned Income Tax Credit, and education credits are common examples. A $1,000 credit saves you $1,000 in tax; a $1,000 deduction saves you tax only at your marginal rate (so roughly $120 if you're in the 12% bracket).
Why your effective rate matters more than your bracket
Your effective tax rate is what you actually pay as a percentage of your total income. It's always lower than your marginal bracket because of how brackets work. If you earn $60,000 and owe $6,600 in federal tax, your effective rate is 11%, even though your marginal bracket is 22%.
When someone says "I'm in the 24% bracket," they mean that's their marginal rate — the rate on their last dollar of income. It doesn't mean they pay 24% on everything. Understanding this distinction helps you make sense of tax planning advice and understand why earning more money is almost always better, even if it pushes you into a higher bracket.
Self-employment and additional taxes
If you're self-employed, you pay both income tax (using the brackets above) and self-employment tax, which covers Social Security and Medicare. Self-employment tax is 15.3% on 92.35% of your net self-employment income — roughly 14.1% of your actual profit. This is in addition to income tax, not instead of it. You can deduct half of your self-employment tax when calculating your adjusted gross income, which reduces your taxable income slightly.
Employees have income tax and these same Social Security and Medicare taxes withheld from their paychecks, but the employer pays half. The total burden is the same; it's just split between you and your employer.
Frequently Asked Questions
Does everyone pay federal income tax?
No. If your income is below the standard deduction for your filing status, you owe no federal income tax. For 2024, that's $14,600 for single filers under 65. Some people with income above the standard deduction still owe no tax because of credits. Others have no tax liability but file anyway to claim refundable credits like the Earned Income Tax Credit.
What's the difference between my W-4 withholding and my actual tax bill?
Your W-4 tells your employer how much to withhold from each paycheck as an estimate of your annual tax bill. Your actual bill depends on your total income, deductions, and credits for the full year. If too much was withheld, you get a refund; if too little, you owe. The W-4 is just an estimate, not your final tax.
Do state taxes use the same brackets as federal?
No. Each state sets its own tax brackets, rates, and deductions. Some states have no income tax at all. Your federal and state taxes are calculated separately. A state's brackets and rates are usually different from the federal ones, and they change on their own schedule.
If I get a raise, will I end up paying more in taxes than I gain?
No. Only the income above your current level is taxed at your marginal rate. If you earn an extra $5,000 and your marginal bracket is 22%, you pay roughly $1,100 in additional federal tax on that $5,000, leaving you about $3,900 ahead. You never lose money by earning more.