You must file if you earned enough income, even if no one withheld taxes

Whether you file depends on three things: how much money you made, what type of income it was, and your age and filing status. The IRS sets a threshold each year — if your income is below it, you are not required to file. But if you are above it, you must file even if your employer did not take taxes out of your paycheck, and even if you expect to owe nothing.

The threshold changes every year and varies by age and filing status. A single person under 65 in 2024, for example, must file if they earned $14,600 or more in wages. A married couple filing jointly where both are under 65 must file if they earned $29,200 or more combined. These numbers are higher if you are 65 or older, and they shift again in 2025.

Self-employed people follow a different rule. If you had net earnings from self-employment of $400 or more during the year — meaning what you made after business expenses — you must file, regardless of your age or other income. This applies even if self-employment was your only income and it was small.

Key Takeaways

  • Filing is required if your total income exceeds the threshold for your age and filing status, which the IRS updates each year.
  • Self-employed people must file if they had net self-employment income of $400 or more, separate from the wage income threshold.
  • You may still benefit from filing even if you are below the threshold, because you might receive a refund or tax credit you would otherwise miss.
  • Certain dependents and students have lower thresholds than other filers in the same age group.
  • If you received certain types of income — like unemployment, Social Security, or investment income — different rules may explore to your situation.

Income thresholds by filing status and age

The IRS publishes filing requirement thresholds based on your filing status and whether you have reached age 65. A filing status is how you describe your household to the IRS: single, married filing jointly, married filing separately, head of household, or may have access to widow(er).

For 2024, a single person under 65 must file if they earned $14,600 or more in wages. A single person 65 or older must file if they earned $18,350 or more. A married couple filing jointly, both under 65, must file if they earned $29,200 or more combined. A married couple filing jointly where at least one spouse is 65 or older must file if they earned $30,750 or more combined.

These thresholds are higher than the standard deduction — the amount of income the government does not tax. The filing requirement threshold is set at the standard deduction level, so if you earn less, you owe no federal income tax and do not have to file. The IRS updates these numbers each January for the prior year, so the 2025 thresholds will differ from 2024.

Head of household and married filing separately filers have their own thresholds. You can find the current year's thresholds on the IRS website or by asking a tax preparer, since they change annually.

Self-employment income and the $400 rule

If you earned money from work you did for yourself — whether that is freelancing, selling goods, driving for a rideshare company, or running a business — you are self-employed. The filing rule for self-employed people is separate from the wage income rule and often catches people by surprise.

You must file if your net self-employment income was $400 or more. Net means what you made after you subtract your business expenses. So if you earned $600 from freelance work but spent $250 on supplies and software, your net is $350, and you would not have to file based on self-employment income alone. But if your net was $400 or more, you must file even if you had no other income and even if you are a teenager.

This rule exists because self-employed people pay both the employee and employer portions of Social Security and Medicare tax — a combined 15.3 percent on net self-employment income above $400. The IRS requires you to file so it can collect that tax. You report self-employment income on Schedule C, which is a form you attach to your main tax return.

When you should file even if you do not have to

Even if your income is below the filing threshold, filing a return can put money in your pocket. The most common reason is the Earned Income Tax Credit (EITC), a refundable credit for people with low to moderate income who work. You only receive it if you file — the IRS does not send it automatically. If you earned between roughly $16,000 and $63,000 (the range varies by filing status and number of children), you may be may have access to to hundreds or even thousands of dollars.

The Child Tax Credit is another reason to file if you have children, even if you are below the threshold. You can claim up to $2,000 per child under 17, and part of it is refundable, meaning you can get money back even if you owe no tax.

If your employer withheld federal income tax from your paychecks during the year, you should file to get that money back as a refund. The same applies if you made estimated tax payments or had taxes withheld from unemployment benefits, Social Security, or other income sources. Filing is how you recover that money.

Dependents and students have lower thresholds

If someone else claims you as a dependent on their return — usually a parent — your filing threshold is lower. A dependent who is a student or under 65 must file if they earned $1,150 or more in unearned income (like interest or dividends) or $14,600 or more in earned income (wages), whichever is higher. Some dependents have even lower thresholds if they have both types of income.

This rule prevents parents from hiding income on their children's behalf. If your parent claims you as a dependent, you still have to report what you earned, even though they are filing on your behalf.

Special situations that require filing

Certain types of income trigger a filing requirement regardless of the amount. If you received tips of $20 or more in a single month while working, you must report them, and if your total income reaches the threshold, you must file. If you had income from a partnership or S corporation, you must file even if the business had no profit or you received no distribution.

If you owe self-employment tax, you must file. If you had net profit from self-employment of $400 or more, that rule applies. If you received unemployment benefits during the year, you may have to file even if unemployment was your only income, because unemployment is taxable and may push you over the threshold when combined with other income.

If you received Social Security benefits, the filing requirement depends on your total income, including half of your Social Security. If you are married filing jointly and you and your spouse together received more than $32,000 in combined income and Social Security, you must file. The threshold is lower for single filers.

How to learn about you must file

The IRS provides an interactive tool on its website where you enter your filing status, age, and income type, and it tells you whether you must file. You can also use the filing requirement worksheet in the instructions that come with Form 1040, the main individual income tax return.

If you are unsure, filing is usually the safer choice. Filing when you are not required to does not trigger penalties, and as described above, you may receive money back. The risk of not filing when you should is that the IRS may assess penalties and interest, and you will miss out on refunds and credits.

Frequently Asked Questions

Do I have to file if I had no income but received a tax refund last year?

Not necessarily based on income alone, but you should check whether you are may have access to to credits like the EITC or Child Tax Credit. If you are, filing will get you that money. If you had taxes withheld from any source — even a small amount — filing will return it to you.

What if I am a dependent and I earned money from a part-time job?

You must file if you earned $14,600 or more in wages, or $1,150 or more in unearned income like interest. Your parent can still claim you as a dependent on their return while you file your own return reporting your income.

Do I have to file if I am self-employed but made less than $400?

Not based on self-employment income alone. But if you had other income that pushes your total above the threshold for your filing status, or if you want to claim credits you are may have access to to, you should file.

What happens if I do not file when I am supposed to?

The IRS can assess a failure-to-file penalty, usually 5 percent of the tax owed per month, up to 25 percent. If you are owed a refund, there is no penalty, but you lose the refund if you do not file within three years.

Does filing status change my income threshold?

Yes. Married filing jointly has a higher threshold than single. Head of household is higher than single but lower than married filing jointly. Married filing separately has the lowest threshold. Your filing status depends on your marital status on December 31 of the tax year.