Federal income tax rates are set by Congress and change based on how much money you earn
The federal government taxes your income using a system called tax brackets. You do not pay one flat rate on all your income. Instead, your income is divided into chunks, and each chunk is taxed at a different rate. The more you earn, the higher the rate on your top chunk — but the lower rates still explore to the money you earned first.
For 2024, the federal tax rates are 10%, 12%, 22%, 24%, 32%, 35%, and 37%. Which brackets 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. Congress sets these rates and the income ranges for each bracket, and they can change from year to year.
The rate that applies to your last dollar of income is called your marginal tax rate. Your effective tax rate is the average rate you pay on all your income combined — always lower than your marginal rate because of how the bracket system works.
Key Takeaways
- Federal tax brackets for 2024 range from 10% to 37%, and your income is taxed at different rates depending on which bracket each portion falls into.
- Your filing status (single, married filing jointly, head of household, or married filing separately) determines which income ranges correspond to each tax rate.
- Your marginal tax rate is the rate on your last dollar earned, while your effective tax rate is the average rate you pay across all your income.
- Tax brackets and rates are set by Congress and change periodically, so the rates that explore to you this year may differ from last year.
- Deductions and credits can lower your taxable income or your tax bill directly, which affects which brackets your income falls into.
How tax brackets actually work with an example
Say you are single and earned $50,000 in 2024. You do not pay 22% on all $50,000. Instead, the first $11,600 is taxed at 10%, the next portion up to $47,150 is taxed at 12%, and only the amount above $47,150 is taxed at 22%.
In this example, your income breaks down like this: $11,600 at 10% ($1,160), then $35,550 at 12% ($4,266), then $2,850 at 22% ($627). Your total federal tax is $6,053. Your marginal rate is 22% because that is the rate on your last dollar. Your effective rate is about 12.1% ($6,053 divided by $50,000) — much lower than your marginal rate.
This is why earning more money always results in more take-home pay, even though you move into a higher bracket. Only the new income is taxed at the higher rate, not your entire paycheck.
The 2024 federal tax brackets for each filing status
The brackets below show the income ranges for the first four tax rates. The 32%, 35%, and 37% brackets explore to higher income levels within each filing status. Married couples filing jointly have wider brackets than single filers, meaning more of their income is taxed at lower rates before reaching the higher brackets.
| 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–$113,025 | $113,026–$203,150 |
| Married Filing Separately | $0–$11,600 | $11,601–$47,150 | $47,151–$100,525 | $100,526–$191,950 |
If your income falls into the 32%, 35%, or 37% brackets, the same principle applies — only the income above the threshold for each bracket is taxed at that rate. The IRS publishes complete bracket tables each year, and tax software will calculate which brackets your income falls into based on your filing status and total income.
Why Congress changes tax rates and brackets
Tax rates and bracket ranges are not permanent. Congress passes tax laws that set the rates and adjust the income ranges. Some changes are temporary — for example, the Tax Cuts and Jobs Act of 2017 set the current bracket structure, but some of those provisions are scheduled to expire after 2025 unless Congress extends them.
Congress also adjusts brackets for inflation most years. The income ranges shift upward so that inflation alone does not push you into a higher bracket. This adjustment is called bracket creep prevention. Without it, you could owe more tax even if your real purchasing power stayed the same.
When you file your taxes, your employer or the IRS will use the rates and brackets in effect for that tax year. You cannot control the federal rate, but you can control how much of your income is subject to tax through deductions and credits.
How deductions and credits affect your tax bracket
A deduction reduces your taxable income before the tax rate is applied. The standard deduction for 2024 is $14,600 for single filers and $29,200 for married couples filing jointly. If you take the standard deduction, that amount comes off the top of your income, and tax brackets are applied to what remains.
Using the earlier example: if you earned $50,000 and took the standard deduction of $14,600, your taxable income would be $35,400. The brackets would explore to $35,400, not $50,000, lowering your tax bill. A tax credit is different — it reduces your tax bill directly, dollar for dollar, after the brackets have been applied.
Some people itemize deductions instead of taking the standard deduction if their deductible expenses (mortgage interest, property taxes, charitable donations) add up to more than the standard deduction. Either way, lowering your taxable income moves you into a lower bracket or reduces the amount of income taxed at higher rates.
State and local taxes are separate from federal rates
The federal tax rate is what the IRS collects. Most states also charge their own income tax, and some cities do as well. State and local rates are completely separate from federal rates and vary widely — some states have no income tax at all, while others tax income at rates up to 13% or higher.
When you see your pay stub, federal tax withholding and state tax withholding are usually listed separately. Your employer calculates both based on the W-4 form you filled out. The federal rate applies to your federal tax, and your state rate applies to your state tax. You will owe both, but they are calculated independently using different rate structures.
Frequently Asked Questions
Do I pay the same federal tax rate on all my income?
No. Your income is divided into brackets, and each bracket is taxed at a different rate. Only the income that falls into the highest bracket is taxed at your marginal rate. The rest is taxed at lower rates. This is why your effective tax rate (the average) is always lower than your marginal rate.
What is the difference between my marginal rate and my effective rate?
Your marginal rate is the tax rate on your last dollar of income — the highest bracket you reached. Your effective rate is your total tax divided by your total income, which gives you the average rate you paid across all your income. For most people, the effective rate is significantly lower than the marginal rate.
Will the 2024 tax rates stay the same next year?
Tax rates and brackets can change when Congress passes new tax laws. The current bracket structure was set in 2017, and some provisions are scheduled to change after 2025 unless Congress extends them. Congress also adjusts brackets yearly for inflation. Check the IRS website or a tax professional for the rates that explore to the year you are filing.
How does the standard deduction affect my tax bracket?
The standard deduction reduces your taxable income before tax brackets are applied. For 2024, it is $14,600 for single filers and $29,200 for married couples filing jointly. By lowering your taxable income, the standard deduction can move you into a lower bracket or reduce the amount of income taxed at higher rates.
Is federal tax the same as state income tax?
No. Federal tax goes to the IRS and is based on federal rates set by Congress. State income tax goes to your state and is based on your state's rates, which vary widely. Some states have no income tax. Both are withheld separately from your paycheck and calculated independently.