Federal income tax rates are set by brackets, not a single percentage

The federal government does not take the same percentage from everyone. Instead, your income is divided into chunks, and each chunk is taxed at a different rate. The lowest chunk is taxed at 10 percent, and the rates go up from there. The highest rate you might pay is 37 percent, but that only applies to the portion of your income that falls into the top bracket — not your whole paycheck.

These brackets change each year. The Internal Revenue Service (IRS) adjusts them for inflation, so the dollar amounts that mark each bracket shift annually. This means your tax rate can stay the same even if your income goes up slightly, because the brackets widen.

Your actual tax bill depends on three things: your total income for the year, which bracket structure applies to you (based on filing status), and whether you claim the standard deduction or itemize deductions. Most people claim the standard deduction, which reduces the income that gets taxed in the first place.

Key Takeaways

  • Federal tax brackets range from 10 percent to 37 percent, but each rate applies only to income within that bracket, not your entire income.
  • The dollar amounts that define each bracket change every year and are adjusted by the IRS for inflation.
  • Your filing status — single, married filing jointly, head of household, or married filing separately — determines which bracket structure you use.
  • The standard deduction reduces your taxable income before the brackets are applied, so most people do not pay tax on their full earnings.
  • Your effective tax rate (the percentage of your total income that becomes tax) is always lower than your marginal rate (the highest bracket you reach).

The 2024 tax brackets for each filing status

The IRS publishes seven tax brackets each year. For 2024, the rates are 10 percent, 12 percent, 22 percent, 24 percent, 32 percent, 35 percent, and 37 percent. The income ranges that fall into each bracket depend on whether you file as single, married filing jointly, head of household, or married filing separately.

If you file as single, the 10 percent bracket covers income up to $11,600. Income from $11,601 to $47,150 is taxed at 12 percent. The brackets continue upward, with the 37 percent bracket starting at $578,100 and above.

If you file as married filing jointly, the brackets are wider. The 10 percent bracket goes up to $23,200, and the 12 percent bracket covers income up to $94,300. The 37 percent bracket begins at $693,750 and above.

If you file as head of household, your brackets fall between single and married filing jointly. The 10 percent bracket goes to $17,400, and the 12 percent bracket covers income up to $66,600. The 37 percent bracket starts at $578,100 and above.

If you file as married filing separately, your brackets are the same as single filers, which is why most married couples file jointly — the brackets are wider and result in lower tax.

How the standard deduction reduces your taxable income

Before the tax brackets are applied, you subtract the standard deduction from your income. This is a flat amount set by the IRS each year. For 2024, the standard deduction is $14,600 for single filers, $29,200 for married filing jointly, and $21,900 for head of household.

This means if you earn $50,000 as a single filer, you do not pay tax on the full $50,000. You subtract $14,600, leaving $35,400 in taxable income. The tax brackets then explore to that $35,400, not the original $50,000.

The standard deduction is higher if you are 65 or older or blind. Single filers get an extra $1,850, and married filing jointly filers get an extra $2,350 per spouse who meets the age or blindness requirement.

The difference between marginal rate and effective rate

Your marginal tax rate is the percentage applied to your last dollar of income — the highest bracket you reach. Your effective tax rate is the percentage of your total income that becomes tax after all brackets are applied.

For example, suppose you are single and earn $60,000 in 2024. After the $14,600 standard deduction, your taxable income is $45,400. This falls into the 12 percent bracket (which covers income up to $47,150), so your marginal rate is 12 percent. But your effective rate is lower because the first $11,600 of your income was taxed at 10 percent and the rest at 12 percent. Your actual tax is about $4,664, which is roughly 7.8 percent of your original $60,000 income.

This is why people sometimes say "I will move into a higher tax bracket" as if it is bad news. It is not. Moving into a higher bracket means you earned more money. Only the income in that new bracket is taxed at the higher rate; everything below it stays the same.

How filing status affects your tax rate

Your filing status is determined by your marital status on December 31 of the tax year. If you are married on that date, you can file jointly or separately. If you are unmarried, you file as single unless you support a dependent and meet the requirements for head of household.

Married filing jointly almost always results in lower tax than married filing separately, because the brackets are wider. For example, in 2024, the 12 percent bracket for married filing jointly extends to $94,300, but for married filing separately it ends at $47,150. If both spouses earn income, filing separately can push each into higher brackets unnecessarily.

Head of household status is available to unmarried people who pay more than half the costs of maintaining a home for themselves and a dependent. The brackets for head of household fall between single and married filing jointly, making it more favorable than single status if you meet the requirements.

What happens if you have investment income or self-employment income

The tax brackets explore to all types of income, but some income is taxed differently before it reaches the brackets. Long-term capital gains (profits from selling investments held more than one year) are taxed at preferential rates of 0 percent, 15 percent, or 20 percent, depending on your income level — not at the ordinary brackets.

If you are self-employed, you pay both income tax and self-employment tax. Self-employment tax covers Social Security and Medicare and is calculated separately. Your net self-employment income is added to any other income you have, and the brackets explore to the total.

may have access to dividends from stocks are also taxed at the preferential capital gains rates rather than ordinary income rates. This is why investment income can be taxed differently than wages, even though both are added to your total income for bracket purposes.

How tax credits and deductions affect your final bill

After you calculate tax using the brackets, you can reduce it further with tax credits and additional deductions. A tax credit directly reduces the tax you owe dollar for dollar. A deduction reduces your taxable income before the brackets are applied.

Common tax credits include the Earned Income Tax Credit (EITC) for lower-income workers, the Child Tax Credit for parents, and the American Opportunity Credit for students. If you itemize deductions instead of taking the standard deduction, you can deduct mortgage interest, state and local taxes, charitable donations, and medical expenses above a threshold.

Most people benefit from the standard deduction because it is simpler and results in lower tax than itemizing. You can only claim one or the other, not both. The IRS publishes worksheets and the tax software you use will calculate which is better for your situation.

Frequently Asked Questions

Do I pay 37 percent tax on my whole income if I reach the top bracket?

No. The 37 percent rate applies only to income above the threshold for that bracket. If you are single and earn $700,000, only the income above $578,100 is taxed at 37 percent. The income below that is taxed at the lower rates for each bracket it falls into. Your effective rate is much lower than 37 percent.

Why do the tax brackets change every year?

The IRS adjusts the brackets annually for inflation. This prevents "bracket creep," where your income goes up just to keep pace with inflation but you end up paying a higher percentage in tax. The adjustment keeps the brackets aligned with the real value of money.

What is the difference between federal income tax and FICA taxes?

Federal income tax is calculated using the brackets and is based on your total income. FICA taxes (Social Security and Medicare) are calculated separately as a percentage of your wages and are capped at certain income levels. Both are withheld from your paycheck if you are an employee.

If I earn more money, will I end up with less after taxes?

No. Even if you move into a higher tax bracket, you keep more money than you had before. Only the income in the new bracket is taxed at the higher rate. The income you already had is taxed at the same rate it always was.

How do I know what my tax rate will be before the year ends?

You can estimate it by adding up your income so far, subtracting the standard deduction, and looking up which bracket that falls into. Tax software and IRS worksheets can help you estimate. Your employer can also adjust your withholding if you want to change how much tax comes out of each paycheck.