Federal income tax rates are set by Congress and change based on how much you earn, not on a flat percentage
The federal income tax does not have a single rate. Instead, the U.S. uses a progressive tax system, which means the percentage you pay increases as your income increases. In 2024, the rates range from 10% on the lowest income bracket to 37% on the highest. The specific rate you pay depends on your filing status (single, married filing jointly, head of household, or married filing separately) and your total taxable income for the year.
Congress sets these rates and can change them through legislation. The current rate structure has been in place since 2018, when the Tax Cuts and Jobs Act took effect. These rates are scheduled to expire at the end of 2025 unless Congress extends them, which means the rates could revert to earlier levels or be adjusted again.
The key thing to understand is that you do not pay the top rate on all your income. Instead, each portion of your income is taxed at the rate for that bracket. This is called the marginal tax system, and it means your actual tax bill is usually lower than the highest rate that applies to you.
Key Takeaways
- Federal income tax rates in 2024 range from 10% to 37%, depending on your income level and filing status.
- You pay different rates on different portions of your income, not one rate on everything you earn.
- Your effective tax rate — the percentage of total income you actually pay — is lower than your highest bracket rate.
- Tax brackets adjust each year for inflation, so the income thresholds that determine your rate change annually.
- The current rate structure expires at the end of 2025 unless Congress votes to extend it.
How tax brackets work: paying different rates on different income slices
A tax bracket is a range of income taxed at a specific rate. For 2024, a single filer has seven brackets: 10%, 12%, 22%, 24%, 32%, 35%, and 37%. The lowest bracket starts at $0 and ends at $11,600. The next bracket covers income from $11,601 to $47,150, and so on, with the highest bracket covering income over $578,100.
Here is how this works in practice. Suppose you are a single filer with $60,000 in taxable income in 2024. You do not pay 22% on all $60,000. Instead, you pay 10% on the first $11,600, then 12% on the income from $11,601 to $47,150, then 22% on the remaining income from $47,151 to $60,000. Your total tax is the sum of those three calculations, not 22% times $60,000.
This is why your effective tax rate — the total tax you pay divided by your total income — is always lower than your highest bracket rate. In the example above, your effective rate would be roughly 13%, even though your highest bracket is 22%. The IRS publishes tax tables and worksheets to calculate this, and most tax software does it automatically.
The 2024 tax brackets for each filing status
| Filing Status | 10% Bracket | 12% Bracket | 22% Bracket | 24% Bracket |
|---|---|---|---|---|
| Single | $0–$11,600 | $11,601–$47,150 | $47,151–$100,525 | $100,526–$191,950 |
| Married Filing Jointly | $0–$23,200 | $23,201–$94,300 | $94,301–$201,050 | $201,051–$383,900 |
| Head of Household | $0–$17,400 | $17,401–$66,550 | $66,551–$100,525 | $100,526–$191,950 |
The brackets for the 32%, 35%, and 37% rates are higher still and vary by filing status. Married couples filing jointly have wider brackets at each rate, which is one reason marriage can affect your tax bill. Head of household filers (usually single parents) fall between single and married rates.
These thresholds change every year because they are adjusted for inflation. The IRS announces the new brackets in October or November for the following tax year. If you earned $47,150 in 2023, you might have been in a different bracket than someone earning the same amount in 2024.
Why Congress can change the rates, and what happens when it does
Federal income tax rates are not permanent. They are written into the tax code by Congress, and Congress can change them whenever it passes new legislation. The current rates took effect in 2018 as part of the Tax Cuts and Jobs Act, which lowered rates across most brackets compared to the previous structure.
These rates are set to expire on December 31, 2025, unless Congress votes to extend them. If they expire without action, the rates will revert to the 2017 structure, which had 10 brackets ranging from 10% to 39.6%. This means your tax bill could increase significantly in 2026 if no extension passes. Congress often waits until late in the year to decide, creating uncertainty for tax planning.
Changes to tax rates can also happen through other legislation. Congress could lower rates to stimulate the economy, raise them to increase revenue, or adjust specific brackets while leaving others alone. These decisions are political and economic, not automatic.
The difference between your marginal rate and your effective rate
Your marginal tax rate is the rate you pay on your last dollar of income — the highest bracket you fall into. Your effective tax rate is your total tax divided by your total income. These are often confused, but they are very different numbers.
If you earn $60,000 as a single filer in 2024, your marginal rate is 22% (the bracket your last dollar falls into), but your effective rate is about 13%. This matters because it affects how you think about earning more money. If you get a raise, you will not pay 22% on the entire raise — you will pay 22% only on the portion that falls into the 22% bracket, and the rest might fall into the 24% bracket. Your effective rate on the raise will be higher than 13%, but lower than 24%.
Understanding this distinction helps you make better decisions about income and deductions. A deduction saves you money at your marginal rate, not your effective rate. If you are in the 22% bracket and you have a $1,000 deduction, you save $220 in federal tax, not 13% of $1,000.
How deductions and credits reduce the tax you actually owe
Your tax bracket rate applies to your taxable income, not your total income. Taxable income is what remains after you subtract deductions. This is why deductions matter: they lower the income that gets taxed at your bracket rate.
You can take either the standard deduction or itemize deductions. The standard deduction for 2024 is $13,850 for single filers and $27,700 for married couples filing jointly. This amount is subtracted from your gross income before the tax brackets explore. If your gross income is $60,000 and you take the standard deduction, your taxable income is $46,150, not $60,000.
Tax credits work differently from deductions. A credit reduces your tax bill dollar-for-dollar, regardless of your bracket. A $1,000 credit saves you $1,000 in tax, while a $1,000 deduction saves you $220 if you are in the 22% bracket. This is why credits are generally more valuable than deductions of the same amount.
State and local income taxes are separate from federal rates
Federal income tax is separate from state and local income taxes. Some states have no income tax at all (including Texas, Florida, and Wyoming). Others have rates ranging from about 1% to over 13%, depending on the state and your income level. A few states tax only certain types of income, like dividends or capital gains.
Your total tax bill includes both federal and state taxes, but they are calculated independently. A state might use a flat rate (the same percentage for everyone) or its own progressive brackets. Your federal bracket does not determine your state bracket, and vice versa.
The SALT deduction (state and local taxes) allows you to deduct up to $10,000 in state and local income taxes, property taxes, and sales taxes combined on your federal return. This deduction is capped at $10,000 regardless of how much you actually paid, and it only benefits you if you itemize deductions instead of taking the standard deduction.
Frequently Asked Questions
Do I pay 37% on all my income if I am in the top bracket?
No. The 37% rate applies only to income above the threshold for that bracket. In 2024, for a single filer, that threshold is $578,100. Income below that amount is taxed at lower rates. Your effective tax rate will be significantly lower than 37%.
What happens to my tax rate if I get married?
Your tax brackets change. Married couples filing jointly have wider brackets at each rate, which usually results in a lower tax bill than two single filers with the same combined income. However, some couples face a "marriage penalty" if their incomes are very similar and high. The effect depends on your specific situation.
Can I reduce my federal income tax rate by taking deductions?
Deductions reduce your taxable income, which lowers the amount subject to your tax rate, but they do not change your rate itself. If you are in the 22% bracket, you stay in the 22% bracket. A $1,000 deduction saves you $220 in federal tax (22% of $1,000), not more.
Will the current tax rates change after 2025?
The current rates are scheduled to expire at the end of 2025. Congress will need to vote to extend them or pass new legislation setting different rates. If no action is taken, rates will revert to the 2017 structure, which had higher rates in most brackets. Congress often decides this late in the year.
How do capital gains fit into the federal income tax rate structure?
Long-term capital gains (assets held over one year) are taxed at different rates than ordinary income: 0%, 15%, or 20%, depending on your income level. These rates are lower than ordinary income rates and are calculated separately. Short-term capital gains (assets held one year or less) are taxed as ordinary income at your regular bracket rate.