Do You Have to File Taxes Under 18? Rules for Teens and Children

Meta description: Find out when a child or teenager under 18 must file a federal tax return, including income limits, job earnings, investment income, and refund situations.

Being under 18 does not automatically exempt someone from filing a tax return. In the United States, the requirement generally depends on income type, income amount, filing status, and whether the young person is claimed as a dependent. A teen with a part-time job may not need to file, while a younger child with investment or self-employment income might. The rules below focus on federal individual income taxes for the 2026 tax year, filed in 2026. State requirements can differ.

Does a Person Under 18 Have to File Taxes?

Sometimes. The IRS does not set a single minimum age for filing an individual income tax return. Instead, it applies income and other filing tests. A child who is claimed as a dependent can have different filing thresholds from someone who is not a dependent, and earned income is treated differently from unearned income.

A parent or guardian claiming a child as a dependent does not automatically file the child’s wages on the parent’s return. In many cases, the child files a separate return if required—or chooses to file to claim a refund. Special rules can apply to a child’s investment income, which may sometimes be reported on a parent’s return.

2026 Federal Filing Rules for a Dependent Under 18

For tax year 2026, a dependent generally must file a federal return if any of the following applies:

• Unearned income was more than $1,350. Unearned income commonly includes taxable interest, dividends, and certain investment income.
• Earned income was more than $15,750. Earned income usually includes wages, salaries, and tips reported as compensation for work.
• Gross income was more than the larger of $1,350 or earned income, up to $15,300, plus $450. This combined-income test accounts for both earned and unearned income.

These are federal rules for a dependent. The IRS has separate filing tests for people who are not dependents, and additional situations can require a return even when income is below the standard thresholds. The filing requirement is based on the relevant tax year’s income, not the child’s age when the return is submitted.

Earned Income: Jobs, Tips, and Summer Work

Earned income generally comes from working. It may include pay from a part-time or summer job, wages from an employer, tips, and other compensation. An employer will often provide a Form W-2 showing wages and federal tax withheld. The amount of withholding does not determine whether a return is required; income and filing rules do.

For example, a dependent teen who earned $5,000 from a summer job and had no other income will generally be below the 2026 federal filing threshold for earned income alone. However, the teen may still benefit from filing if federal income tax was withheld from their pay. A return may allow them to claim a refund of some or all of that withholding.

Social Security and Medicare taxes withheld from wages are different from federal income tax withholding. Filing a return does not ordinarily refund Social Security or Medicare taxes simply because a worker is young or earned relatively little. Those payroll taxes usually apply even when no federal income tax return is required.

Unearned Income: Savings and Investments

Unearned income can include taxable interest, dividends, capital gains, and certain other income that does not come from a job. A child may receive this income through a savings account, investments, or property held in the child’s name. For a dependent under the 2026 rules, unearned income above $1,350 can trigger a federal filing requirement.

Investment income can also be subject to the kiddie tax. This rule may cause some of a child’s unearned income to be taxed using the parent’s tax rate rather than only the child’s rate. It generally applies to qualifying children under 19, and to full-time students under 24 who meet the applicable support and other requirements. The detailed rules and calculations depend on the type and amount of income.

In certain circumstances, a parent may be able to elect to report a child’s qualifying interest and dividend income on the parent’s return using Form 8814. This option is limited and may not be the best choice in every case. A child who has wages, other income, or circumstances outside the election rules may need to file a separate return instead. The IRS instructions for Form 8814 explain eligibility and restrictions.

Self-Employment and Gig Work Can Trigger Filing

A minor who earns money through babysitting, lawn care, online sales, delivery work, or another independent business may have self-employment income. The tax treatment depends on whether the activity is a business, the amount of net earnings, and the nature of the work. A person generally must file a federal return if net earnings from self-employment are $400 or more, even if the person is under 18.

That $400 test is separate from the usual dependent income thresholds. Self-employed workers may owe self-employment tax, which helps fund Social Security and Medicare, as well as income tax. They may also need to keep records of income and eligible business expenses. Payments reported on a tax form are not the only income that may count; cash income can also be taxable.

Some work performed for a household, such as babysitting, may be treated differently depending on the worker’s age, the arrangement, and the facts. A young person who is unsure whether work counts as self-employment should review IRS guidance or consult a qualified tax professional rather than assuming that informal or cash-paid work is tax-free.

When Filing Is Optional but May Be Worthwhile

A child who is not required to file may still choose to file a return. The most common reason is to claim a refund of federal income tax withheld from wages. For instance, a teen may have had income below the filing threshold but still see federal income tax withheld on a W-2. Filing a return is generally necessary to request that money back.

A return may also help document income from self-employment or support a future financial application. Before filing, the child or parent should gather tax forms and compare the withholding shown with the final tax calculation. Filing a return does not mean that the person will receive a refund: a refund is available only when payments and credits exceed tax owed.

Does a Parent File for a Child?

A child who is required to file generally files a separate federal return in the child’s name, using the child’s Social Security number or other applicable taxpayer identification number. A parent or guardian can help prepare and submit the return, but the child’s income and tax situation remain separate from the parent’s in many common cases.

Parents should not assume that claiming a child as a dependent means the child’s wages belong on the parent’s return. The dependency claim and the child’s filing requirement are separate questions. Investment income is the main area where a special parent election may be available, subject to IRS conditions. If a child files separately, the return should indicate the dependency status accurately.

When a parent prepares a child’s return, the parent should use the correct tax forms and sign as required. A child who is able to sign should generally sign their own return; a parent may sign for a child who cannot legally do so, following IRS procedures. Electronic filing software typically asks whether the taxpayer can be claimed as a dependent on someone else’s return.

Federal Taxes and State Tax Returns Are Different

Meeting the federal filing rules does not settle whether a child must file a state income tax return. States set their own thresholds and may use different definitions of income, dependency, or withholding. A teen who does not need to file a federal return might still need to file a state return, or might file one to recover state income tax withheld from wages.

State rules can also affect how investment income is reported. The relevant state department of revenue is the best source for local requirements. For a child who worked or lived in more than one state, additional state filing questions may arise.

How to Decide Whether a Teen Must File

A practical review can help a family identify the next step. It does not replace the IRS instructions, especially when income includes investments, self-employment, or unusual tax situations.

1. Identify the tax year. Use income and filing rules for the year in which the money was earned.
2. Check dependency status. Confirm whether a parent or another taxpayer can claim the child as a dependent.
3. Gather income records. Collect W-2s, 1099 forms, bank statements, and reliable records of cash or business income.
4. Separate income by type. Distinguish wages and self-employment earnings from interest, dividends, and other unearned income.
5. Apply every relevant filing test. Check income thresholds as well as special requirements, including the $400 self-employment test.
6. Check withholding and state rules. A return may be useful to claim a refund, and state filing rules may differ.

Common Tax Filing Mistakes for Minors

• Assuming age alone decides. There is no general federal exemption that automatically covers everyone under 18.
• Ignoring self-employment income. A young person may have a filing obligation even with modest earnings if net self-employment income reaches the applicable threshold.
• Forgetting investment income. Interest and dividends can trigger filing requirements or kiddie tax rules.
• Confusing a refund with a filing requirement. A return can be optional but useful for recovering withheld income tax.
• Combining the child’s wages with a parent’s income without checking the rules. A dependent child commonly files separately; a limited parent election may apply to certain investment income.
• Overlooking state taxes. State filing thresholds and refund procedures may not match federal rules.

Where to Verify Current IRS Requirements

Tax rules and thresholds can change from year to year. The IRS provides a filing requirement overview in “Do I Need to File a Tax Return?” and details for dependents in Publication 501, Dependents, Standard Deduction, and Filing Information. For children’s investment income, see Form 8615 and Form 8814. For self-employment requirements, review the IRS information on self-employed individuals.

Bottom line: A person under 18 may have to file taxes, but age alone does not determine the answer. For a dependent, the 2026 federal rules consider earned income, unearned income, combined income, and special situations such as self-employment. Filing can also be worthwhile when it is not required, particularly when federal income tax was withheld and a refund may be due.