Most working people pay federal income tax, but not everyone does

Federal income tax is withheld from most paychecks, but whether you actually owe it depends on your income level, age, filing status, and type of income. The IRS sets a standard deduction — a dollar amount below which you owe nothing. If your income falls below that line, you file a return anyway to get back any taxes already withheld from your pay. If your income exceeds it, you owe federal tax on the difference.

The standard deduction changes every year and varies by age and filing status. A single person under 65 has a lower standard deduction than a married couple filing jointly, or a person 65 and older. Self-employed people, retirees living on investment income, and students with part-time jobs all follow the same rule: if total income is below the standard deduction for your situation, you owe no federal tax.

Some income is never taxed at all — certain disability payments, workers' compensation, and some types of financial aid. Other income is always taxed, no matter how small the amount. Understanding which category your income falls into determines whether you file and whether you owe.

Key Takeaways

  • You owe federal income tax only if your total income exceeds the standard deduction for your age and filing status, which the IRS updates yearly.
  • Even if you owe no tax, you should file a return if taxes were withheld from your paycheck, because you may receive a refund.
  • Certain income types — like workers' compensation, some disability benefits, and Supplemental Security Income — are never subject to federal tax.
  • Self-employed people, retirees, and students use the same standard deduction rules as wage earners, but must also account for self-employment tax.

Standard deduction amounts and who uses them

The standard deduction is the threshold. Earn less than it, and you owe no federal income tax on that income. The IRS publishes new amounts each January for the prior tax year. For the 2023 tax year (filed in 2024), a single person under 65 had a standard deduction of $13,850. A married couple filing jointly had $27,700. A person 65 or older had a higher amount — $17,550 for single filers, $34,550 for married couples filing jointly.

These amounts increase slightly each year to account for inflation. You can find the current year's standard deduction on the IRS website or on the instructions that come with the tax form you file. If you are claimed as a dependent on someone else's return — typically a student or young person living with parents — your standard deduction is lower and calculated differently.

Head of household filers (usually single parents supporting children) have their own standard deduction amount, which falls between single and married filing jointly. Married people filing separately have the same standard deduction as single filers. The IRS website has a table showing all filing statuses and ages so you can find your exact number.

Types of income that are always taxed

Wages and salaries are taxed. So are tips, bonuses, and commissions. If you receive a W-2 form from an employer, that income is subject to federal tax. Self-employment income — money from running your own business, freelance work, or gig work — is taxed. You report it on Schedule C and also pay self-employment tax on top of income tax.

Investment income is taxed. This includes interest from savings accounts and bonds, dividends from stocks, and capital gains when you sell an investment for more than you paid. Long-term capital gains (assets held over one year) are often taxed at lower rates than ordinary income. Rental income from property you own is taxed, even if you only rent out one room.

Retirement account withdrawals are taxed as ordinary income in most cases. When you withdraw money from a traditional IRA or 401(k), the full amount is subject to federal tax. Roth IRA withdrawals follow different rules — contributions come out tax-free, but earnings may be taxed depending on how long you have held the account.

Gambling winnings are taxed. Prizes and awards are taxed. Forgiven debt — when a creditor cancels what you owe — is usually taxed as income. Unemployment benefits are taxed. These rules apply regardless of the amount.

Types of income that are never taxed

Workers' compensation is never subject to federal income tax, even if the amount is large. Supplemental Security Income (SSI) is not taxed. Certain disability benefits paid by the Department of Veterans Affairs are not taxed. Some military benefits — including combat zone pay and certain housing allowances — are excluded from taxable income.

Gifts and inheritances are not taxed to the person who receives them. The person giving the gift may have filing obligations, but the recipient does not include the gift as income. Child support received is not taxed. Certain educational assistance — scholarships and grants used for tuition, books, and required fees — is not taxed, though room and board are.

Life insurance proceeds paid to a beneficiary after someone dies are not taxed. Certain state and local benefits — including TANF (Temporary Assistance for Needy Families) and some housing assistance — are not taxed. The rules vary by program, so if you receive a benefit and are unsure, check the documentation that came with it or contact the program directly.

When you must file even if you owe no tax

If your employer withheld federal income tax from your paycheck, you should file a return even if your income is below the standard deduction. The IRS withholds based on the W-4 form you filled out when hired, which is an estimate. If you withheld too much, filing a return gets you a refund. If you withheld too little, filing tells the IRS what you actually owe.

Self-employed people must file if their net self-employment income is $400 or more, regardless of total income. This is because self-employment tax is separate from income tax. You owe self-employment tax on business income even if you owe no income tax.

If you received certain credits — like the Earned Income Tax Credit (EITC) or the Child Tax Credit — you must file to claim them, even if you owe no tax. These credits can result in refunds larger than any tax you paid. Filing is also required if you received health insurance through the marketplace and need to reconcile subsidies you received during the year.

Self-employed people and tax obligations

Self-employment income includes money from freelance work, consulting, running a business, gig work (driving, delivery, task services), and rental income. You report this on Schedule C (for business income) or Schedule E (for rental income). The income is subject to federal income tax, and you also owe self-employment tax — a 15.3% tax that covers Social Security and Medicare.

Self-employment tax is calculated on net income (income minus business expenses). You must file if your net self-employment income is $400 or more, even if your total income is below the standard deduction. This is because self-employment tax is owed separately from income tax. You pay it using Schedule SE, which calculates the amount owed.

Self-employed people can deduct business expenses — supplies, equipment, a portion of home office costs, vehicle mileage, and other costs directly tied to earning the income. These deductions reduce the income subject to both income tax and self-employment tax. Keeping records of expenses throughout the year makes filing easier and can significantly lower what you owe.

Retirees and income from multiple sources

Retirees often have income from several sources: Social Security, pensions, retirement account withdrawals, part-time work, and investments. Each type is treated differently. Social Security benefits may or may not be taxed depending on your total income. If you have little other income, Social Security is usually not taxed. If you have substantial other income, up to 85% of your Social Security benefits may be subject to tax.

Pension income is taxed as ordinary income. Traditional IRA and 401(k) withdrawals are taxed. Roth IRA withdrawals of contributions are not taxed, but earnings may be. Investment income — interest, dividends, and capital gains — is taxed. Part-time work is taxed like any other wage income.

Retirees should add up all income sources to determine whether the total exceeds the standard deduction for their age and filing status. Because retirees are typically 65 or older, they have a higher standard deduction than younger workers. Many retirees with modest income owe no federal tax, but should still file if taxes were withheld, to receive a refund.

Frequently Asked Questions

Do I have to file a tax return if I made less than the standard deduction?

Not if you had no tax withheld and owe no tax. But if your employer withheld federal income tax from your paycheck, you should file to get that money back. If you are self-employed and earned $400 or more in net income, you must file even if your total income is below the standard deduction, because you owe self-employment tax.

Is Social Security taxed?

Social Security may or may not be taxed depending on your total income from all sources. If you have little other income, it is usually not taxed. If you have substantial income from pensions, investments, or work, up to 85% of your benefits may be subject to federal tax. The IRS uses a formula based on your "combined income" to determine the taxable portion.

What counts as income for the standard deduction?

Wages, self-employment income, investment income, retirement withdrawals, rental income, and most other money you receive count toward income. Gifts, inheritances, workers' compensation, and certain disability and military benefits do not. If you are unsure whether something counts, check the IRS website or the documentation that came with the payment.

Can I claim someone as a dependent if they earn income?

Yes, but the dependent's standard deduction is lower than an independent person's. A dependent's standard deduction is generally the greater of $1,150 or their earned income plus $450 (for 2023), up to the standard deduction for a single filer. If the dependent has unearned income like interest or dividends, different rules apply. Check the IRS website for the current year's limits.

Do I owe federal tax on unemployment benefits?

Yes. Unemployment benefits are subject to federal income tax. You can request that the state withhold federal tax from your benefits when you apply, or you can pay estimated tax quarterly. If no tax is withheld, you may owe when you file your return, so it is wise to set aside money or plan to owe.