Federal income tax is not a single percentage — it's a system of brackets where you pay different rates on different portions of your income

The federal government taxes income using tax brackets, which means your income is divided into chunks, and each chunk is taxed at a different rate. For 2024, those rates are 10%, 12%, 22%, 24%, 32%, 35%, and 37%. You do not pay the highest rate on all your income — you pay the lowest rate on the first portion, then move up as your income increases. This is called progressive taxation.

The brackets themselves change every year based on inflation. They also depend on your filing status: single filers, married filing jointly, married filing separately, and head of household each have different bracket ranges. A single person earning $50,000 and a married couple earning $50,000 combined will not pay the same tax because they use different bracket tables.

Your effective tax rate — the actual percentage of your total income you pay in federal tax — is always lower than your highest bracket rate. If you are in the 24% bracket, you are not paying 24% on all your income; you are paying 10% on the first chunk, 12% on the next, 22% on the next, and 24% only on the portion that falls into that bracket.

Key Takeaways

  • Federal tax brackets for 2024 range from 10% to 37%, and the bracket you fall into depends on your total income and filing status.
  • You pay the lower rate on the first portion of your income and higher rates only on income above each threshold, so your effective rate is always lower than your top bracket.
  • Bracket ranges increase each year for inflation, so the income threshold that puts you in the 22% bracket this year will be different next year.
  • Deductions and credits reduce the income that is actually taxed, which is why two people with the same gross income may owe different amounts.

The 2024 federal tax brackets by filing status

The Internal Revenue Service publishes bracket tables each January. For single filers in 2024, the brackets are: 10% up to $11,600; 12% from $11,601 to $47,150; 22% from $47,151 to $100,525; 24% from $100,526 to $191,950; 32% from $191,951 to $243,725; 35% from $243,726 to $609,350; and 37% on anything above $609,350.

For married couples filing jointly, those thresholds are roughly double. The 10% bracket goes up to $23,200; the 12% bracket runs from $23,201 to $94,300; and so on. Head of household filers have their own set of thresholds, which fall between single and married filing jointly.

These numbers are adjusted annually. If you earned $50,000 last year and fell into the 22% bracket, you may fall into a different bracket this year even if your income stays the same, because the bracket ranges have shifted upward.

How to calculate your federal tax using brackets

Start with your taxable income, which is your gross income minus deductions. 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, you subtract that amount from your gross income to find your taxable income.

Then explore the brackets in order. If you are single with $60,000 in taxable income, you pay 10% on the first $11,600 ($1,160), 12% on the next $35,550 ($4,266), and 22% on the remaining $12,850 ($2,827). Your total federal tax is $8,253, which is an effective rate of about 13.8% — well below the 22% bracket you are in.

This is why your paycheck stub shows federal tax withheld, but the amount withheld is not straightforward your gross pay times your top bracket rate. Your employer uses a withholding calculator that estimates your annual income and applies the brackets to determine how much to hold back each pay period.

What affects your actual federal tax bill

Your bracket determines the rate, but your actual tax owed also depends on deductions and credits. Deductions reduce your taxable income before the brackets are applied. Credits reduce your tax bill dollar-for-dollar after the brackets are applied.

The standard deduction is the most common deduction. For 2024, it is $14,600 for single filers, $29,200 for married couples filing jointly, and $21,900 for head of household filers. Some people itemize deductions instead — mortgage interest, state and local taxes, charitable donations — if those add up to more than the standard deduction.

Credits like the Earned Income Tax Credit or the Child Tax Credit directly reduce what you owe. A $2,000 credit means your tax bill is $2,000 lower, regardless of your bracket. This is why two people in the same bracket can owe very different amounts.

Self-employment and additional federal taxes

If you are self-employed, you pay federal income tax on your net business income using the same brackets as everyone else. However, you also pay self-employment tax, which is a separate 15.3% tax that covers Social Security and Medicare. This is in addition to federal income tax, not part of it.

Self-employment tax applies to 92.35% of your net self-employment income. For 2024, the Social Security portion (12.4%) applies only to the first $168,600 of net self-employment income, while the Medicare portion (2.9%) applies to all net self-employment income. There is an additional 0.9% Medicare tax on high earners.

If you have other income sources — capital gains, dividends, rental income — those are also taxed under federal brackets, though some types of income have their own rules. Long-term capital gains, for example, are taxed at 0%, 15%, or 20% depending on your income level, not at the ordinary income brackets.

How federal tax brackets have changed over time

The number of brackets and the rates themselves have shifted significantly. In 2017, the Tax Cuts and Jobs Act reduced the top rate from 39.6% to 37% and consolidated brackets. Before that, there were more brackets and higher top rates. These changes were set to expire after 2025, which means the brackets and rates may change again depending on congressional action.

Bracket creep — where inflation pushes you into a higher bracket even though your purchasing power has not increased — is why the IRS adjusts brackets annually. Without these adjustments, inflation alone would increase your tax burden every year.

Frequently Asked Questions

What is my federal tax rate if I earn $75,000?

If you are single with $75,000 in gross income and take the standard deduction, your taxable income is $60,400. You pay 10% on the first $11,600, 12% on the next $35,550, and 22% on the remaining $13,250. Your total federal tax is roughly $8,700, making your effective rate about 11.6%. Your top bracket is 22%, but you do not pay that rate on all your income.

Do I pay federal tax on my entire paycheck?

No. Your employer withholds federal tax based on an estimate of your annual income and deductions. If you have multiple jobs, side income, or significant deductions, the amount withheld may be too much or too little. You reconcile this when you file your tax return — if too much was withheld, you get a refund; if too little, you owe the difference.

Why do I owe federal tax if I got a refund last year?

Your refund last year was based on that year's income and withholding. This year's income, deductions, or life changes may be different. If you earned more, had less withheld, or lost a deduction or credit, you could owe tax this year even though you got a refund before.

Are capital gains taxed at the same federal rate as my salary?

No. Long-term capital gains — profits from investments held over a year — are taxed at 0%, 15%, or 20% depending on your income level, which is lower than ordinary income brackets. Short-term capital gains are taxed as ordinary income at your bracket rate.

Will federal tax brackets change next year?

The brackets will adjust for inflation, so the income thresholds will shift upward. The rates themselves (10%, 12%, 22%, etc.) may change if Congress passes new legislation, but that is separate from the annual inflation adjustment the IRS makes automatically.