Ordinary income is taxed using a progressive rate system where your tax rate rises as your income rises

The federal government taxes ordinary income — wages, salaries, interest, and most business profits — using tax brackets. You do not pay one flat rate on all your income. Instead, each portion of your income is taxed at a different rate, starting at the lowest rate and moving up as your income increases. The more you earn, the higher the rate applied to the top portion of your income.

Your actual tax rate depends on your filing status (single, married filing jointly, head of household, or married filing separately) and the year the income was earned. The brackets themselves change every year to account for inflation. This means the income ranges that fall into each bracket shift annually, even if the rates themselves stay the same.

You also owe state income tax in most states, and some cities tax income as well. State and local rates vary widely — some states have no income tax at all, while others tax ordinary income at rates up to 13 percent. The federal tax is separate from and in addition to what you owe your state.

Key Takeaways

  • Federal tax brackets are progressive, meaning different portions of your income are taxed at different rates, with rates rising as income rises.
  • Your filing status (single, married filing jointly, head of household) determines which bracket structure applies to your income.
  • Tax brackets adjust every year for inflation, so the income ranges that fall into each bracket change annually.
  • State and local income taxes are separate from federal tax and vary by location — some states have no income tax, while others tax at rates above 10 percent.
  • Your employer typically withholds federal income tax from each paycheck based on a W-4 form you complete, but you may owe more or less when you file your return.

How the bracket system actually works

A tax bracket is a range of income taxed at a single rate. For 2024, the federal brackets for a single filer are 10 percent, 12 percent, 22 percent, 24 percent, 32 percent, 35 percent, and 37 percent. Each bracket covers a specific income range. For example, in 2024, a single filer pays 10 percent on income up to $11,600, then 12 percent on income from $11,601 to $47,150, and so on.

This means if you earn $50,000 as a single filer in 2024, you do not pay 12 percent on all $50,000. Instead, you pay 10 percent on the first $11,600, then 12 percent on the next $35,550 (from $11,601 to $47,150), then 22 percent on the remaining $2,850 (from $47,151 to $50,000). Your effective tax rate — the actual percentage of your total income that goes to federal tax — is lower than your highest bracket rate.

The bracket ranges change every year. The IRS adjusts them for inflation using a specific formula. This adjustment means that even if tax rates stay the same, the income thresholds shift upward each year. You need to check the current year's brackets when calculating what you owe, because last year's brackets do not apply.

Filing status and how it changes your brackets

Your filing status determines which bracket structure you use. The four main statuses are single, married filing jointly, married filing separately, and head of household. Each has different income ranges for each bracket.

Married couples filing jointly typically have wider brackets than single filers, meaning more income fits into lower tax rates before moving to higher ones. This is one reason married filing jointly often results in lower total tax than filing separately. Head of household filers — usually unmarried people who pay more than half the household expenses for themselves and a dependent — have brackets between single and married filing jointly.

Married filing separately uses the narrowest brackets, resulting in the highest tax burden for most couples. This status is rarely advantageous unless you have specific circumstances, such as significant student loan debt or certain business losses that benefit from separate filing.

How withholding connects to what you actually owe

When you start a job, you complete a W-4 form that tells your employer how much federal income tax to withhold from each paycheck. Your employer uses your filing status, number of dependents, and other information from the W-4 to calculate the withholding. The goal is to withhold roughly the amount of tax you will owe, so you do not have a large bill or refund when you file your return.

Withholding is not the same as your actual tax. It is an estimate. If your circumstances change — you get married, have a child, take a second job, or earn significant investment income — your withholding may no longer match what you actually owe. You can update your W-4 at any time to adjust withholding.

When you file your tax return, you report all your ordinary income for the year and calculate your total federal tax using the current year's brackets. The IRS then compares what you withheld to what you owe. If you withheld too much, you receive a refund. If you withheld too little, you owe the difference.

State and local income tax on ordinary income

Forty-one states and Washington, D.C. tax ordinary income. Nine states have no income tax: Alaska, Florida, Nevada, South Dakota, Tennessee, Texas, Washington, Wyoming, and New Hampshire (which taxes only interest and dividends, not wages). The remaining states use their own bracket systems, rates, and rules.

State tax rates on ordinary income range from less than 1 percent to over 13 percent, depending on the state and your income level. Some states use a flat rate — everyone pays the same percentage regardless of income. Others use progressive brackets similar to the federal system. A few states tax only certain types of ordinary income, such as wages or business profits, while excluding others.

Some cities also tax income. New York City, for example, taxes wages and self-employment income at rates up to 3.9 percent. If you live or work in a city with an income tax, that amount is separate from both your federal and state tax. Your employer may withhold city tax from your paycheck, or you may owe it when you file your return.

Self-employment income and ordinary income tax

If you are self-employed, your ordinary income includes business profits. You owe federal income tax on this amount using the same brackets as wage earners. However, you also owe self-employment tax, which funds Social Security and Medicare. Self-employment tax is separate from ordinary income tax and is calculated differently.

Self-employed people do not have an employer withholding tax, so you typically need to make estimated tax payments four times per year (quarterly) to avoid penalties. These payments cover both your federal income tax and self-employment tax. You calculate estimated payments based on your expected annual income and file them with the IRS on specific dates.

You can deduct half of your self-employment tax when calculating your ordinary income tax, which provides some relief. You can also deduct legitimate business expenses from your gross business income before calculating tax, which lowers your taxable ordinary income.

Investment income and ordinary income tax rates

Most investment income — interest from savings accounts and bonds, short-term capital gains, and dividend income from most stocks — is taxed as ordinary income using the same brackets as wages. This means a dollar of interest income is taxed at the same rate as a dollar of wages, depending on your total income for the year.

Long-term capital gains (profits from selling an asset you held for more than one year) are taxed differently and usually at lower rates than ordinary income. may have access to dividends also receive preferential rates. These are not ordinary income for tax purposes, even though they appear on your tax return.

If you have both wages and investment income, your total ordinary income determines your tax bracket. Investment income that pushes you into a higher bracket is taxed at that higher rate. This is why high earners with significant investment income may owe more tax than someone with the same wage income but no investments.

Frequently Asked Questions

What is my effective tax rate versus my marginal tax rate?

Your marginal tax rate is the rate applied to your last dollar of income — the highest bracket you reach. Your effective tax rate is your total federal tax divided by your total income. For most people, the effective rate is significantly lower than the marginal rate because only the top portion of income is taxed at the highest rate. If you earn $60,000 as a single filer in 2024, your marginal rate is 22 percent, but your effective rate is roughly 8 percent.

Do I owe federal tax if I earn below the standard deduction?

The standard deduction is the amount of income you can earn without owing federal income tax. For 2024, the standard deduction is $14,600 for single filers and $29,200 for married couples filing jointly. If your ordinary income is below these amounts, you typically owe no federal income tax. However, if you are self-employed, you may owe self-employment tax even if your income is below the standard deduction.

Can I reduce my ordinary income tax by contributing to a retirement account?

Contributions to traditional IRAs and 401(k) plans reduce your taxable ordinary income in the year you make them, lowering your tax bill. Contributions to Roth accounts do not reduce your current-year tax but grow tax-free. The amount you can contribute and deduct varies by account type, income level, and whether you have access to an employer plan.

What happens if I do not pay estimated taxes as a self-employed person?

If you owe more than $1,000 in federal tax and did not pay enough through withholding or estimated payments, you may owe a penalty when you file your return. The penalty is calculated based on how much you underpaid and when it was due. Making quarterly estimated payments avoids this penalty and spreads your tax bill throughout the year.

How do I know if I should file in a different state?

You file in the state where you lived on December 31 of the tax year, regardless of where you worked. If you moved during the year, you may owe tax to two states — your former state for the months you lived there and your new state for the remaining months. Some states have reciprocal agreements that prevent double taxation, but you still need to file in both states to claim the exemption.