For the 2026 tax year, a child who can be claimed as a dependent can earn up to $16,100 in wages, salary, or tips without owing any federal income tax. Investment income is treated far more strictly: only the first $1,350 is tax-free, and amounts above $2,700 can be taxed at the parent’s rate under the Kiddie Tax. How much a child can earn tax free depends entirely on whether the money came from work or from investments, and the two sides of that line follow very different rules.
The Earned Income Limit for a Dependent
Earned income means money the child received for work — wages, salary, tips, and net self-employment profit. When a child qualifies as someone else’s dependent, their standard deduction is calculated under a special formula instead of the regular single-filer amount.
For 2026, the dependent’s standard deduction equals the greater of:
- $1,350, or
- The child’s earned income plus $450
The result is capped at $16,100, which is the full 2026 standard deduction for a single filer.1Internal Revenue Service. Revenue Procedure 2025-322Internal Revenue Service. IRS Releases Tax Inflation Adjustments for Tax Year 2026
Because the deduction grows with earnings, the tax-free ceiling moves with the paycheck. A teenager who earns $6,000 at a part-time job gets a $6,450 standard deduction and owes nothing. A child who earns $20,000 hits the $16,100 cap, and the remaining $3,900 is taxable. A child with no job at all still gets the $1,350 floor, which matters once investment income enters the picture.
Self-Employment Has a Much Lower Trigger
Net earnings from self-employment count as earned income for the standard deduction. But self-employment carries its own filing trigger that has nothing to do with the income tax threshold: once net profit reaches $400, the child owes self-employment tax for Social Security and Medicare.3Internal Revenue Service. Self-Employment Tax (Social Security and Medicare Taxes)
A child who mows lawns and nets $500 for the summer owes no income tax, because the standard deduction absorbs the full amount. The $500 still requires a Form 1040 with Schedule C and Schedule SE to report and pay the self-employment tax. There is no age exemption. Families often overlook this because the income tax picture looks clean.
The Unearned Income Limit and the Kiddie Tax
Unearned income — interest, dividends, capital gains, and trust distributions — is handled under rules designed to stop parents from parking investments in a child’s name to use lower brackets.
For 2026, unearned income breaks into three tiers:
- The first $1,350 is tax-free, covered by the standard deduction floor.
- The next slice, from $1,351 to $2,700, is taxed at the child’s own rate, usually 10%.
- Anything above $2,700 is taxed at the parent’s marginal rate under the Kiddie Tax.4Internal Revenue Service. Topic No. 553, Tax on a Child’s Investment and Other Unearned Income (Kiddie Tax)
The Kiddie Tax applies to children under 18 at year-end, 18-year-olds whose earned income doesn’t cover more than half their support, and full-time students aged 19 through 23 whose earned income doesn’t cover more than half their support.5Internal Revenue Service. 2025 Instructions for Form 8615 At least one parent must be alive at year-end, and the child cannot file a joint return. The calculation runs on Form 8615: unearned income above $2,700 gets added to the parent’s taxable income and taxed at whatever rate that reaches. A parent already in the 32% bracket means the child’s excess investment income is taxed at 32% or more.
A parent can skip the separate return and report the child’s income on their own Form 1040 using Form 8814, but only when the child’s income is entirely interest, dividends, and capital gain distributions, and the child’s gross income is less than $13,500 for 2026.4Internal Revenue Service. Topic No. 553, Tax on a Child’s Investment and Other Unearned Income (Kiddie Tax) The convenience can slightly raise the family’s total tax and can affect income-based deductions, since the child’s income flows into the parent’s adjusted gross income.
When a Child Has Both a Paycheck and Investments
Many children have some of each. The combined filing rule says a dependent must file a return when gross income exceeds the larger of $1,350 or earned income plus $450, capped at $16,100.6Internal Revenue Service. Publication 501 (2025), Dependents, Standard Deduction, and Filing Information
Take a 16-year-old who earns $4,000 in wages and receives $800 in dividends from a custodial account. Gross income is $4,800. The filing threshold is $4,450 ($4,000 + $450). Since $4,800 is above $4,450, a return is required. The standard deduction of $4,450 covers most of it, and the leftover $350 is taxed at the child’s rate. If the dividends had been $400 instead, gross income would be $4,400, below the threshold, and no return would be required.
When a child has no earned income at all, the threshold drops to $1,350. A child with $1,400 in interest and no job must file, even if the tax owed is small.
Scholarships That Count Toward the Limit
Scholarship money spent on tuition, fees, books, and required supplies at an eligible school is tax-free. Amounts spent on room, board, or other living costs are taxable. Scholarship money that pays for required services, like teaching or research assistant duties, is taxable as compensation even when every student in the program must do the same work. A scholarship that requires future service with a substantial penalty for noncompliance is fully taxable as compensation in the year received.7Internal Revenue Service. Publication 970, Tax Benefits for Education
The taxable portion counts toward the filing threshold. If no W-2 was issued, the student reports it on Schedule 1 of Form 1040.
Stopping Unnecessary Withholding With the W-4
When a child starts a job, the employer provides a Form W-4. A child who had no federal income tax liability last year and expects none this year can claim exempt status, which stops federal income tax withholding from each paycheck.8Internal Revenue Service. Form W-4, Employee’s Withholding Certificate For a teenager earning well below $16,100, that often makes sense. There is no reason to lend money to the IRS all year just to get it back in April.
Claiming exempt does not stop Social Security or Medicare withholding, which still come out of every check. If the child ends up earning more than expected, the full tax is due at filing time. An exempt W-4 must be renewed by February 16 of the following year, or the employer will begin withholding at the default rate.
The Earned Income Credit Is Not Available
A child who can be claimed as a dependent cannot claim the Earned Income Tax Credit on their own return, even with qualifying wages.9Internal Revenue Service. Publication 596 (2025), Earned Income Credit (EIC) The dependency relationship disqualifies the child entirely. Families seeing a working teenager with modest wages sometimes assume the credit applies; it doesn’t.
Turning Tax-Free Earnings Into a Roth IRA
A child with earned income can contribute to a Roth IRA. The contributions go in after tax, and all future growth and withdrawals in retirement come out tax-free. For 2026, the annual limit is $7,500 or the child’s total taxable compensation for the year, whichever is less.10Internal Revenue Service. Retirement Topics – IRA Contribution Limits A 15-year-old who earns $3,000 babysitting can contribute up to $3,000. There is no minimum age; earned income is the only requirement.
Because most working children earn well under the standard deduction, they typically pay no federal income tax on the money going in and no tax on it coming out decades later. Since minors cannot open brokerage accounts on their own, a parent or guardian opens a custodial Roth IRA on the child’s behalf. The child is the owner, and the custodian manages it until the child reaches the state’s age of majority. For informal work without a W-2, a simple log of dates, tasks, and payments is enough to substantiate the income.
Penalties if a Required Return Isn’t Filed
If a child owes tax and doesn’t file on time, the IRS applies the same penalties it uses for any other taxpayer. The failure-to-file penalty is 5% of the unpaid tax for each month the return is late, up to 25%.11Internal Revenue Service. Failure to File Penalty A failure-to-pay penalty of 0.5% per month also runs on any balance due, capping at 25%. For returns required to be filed in 2026, a return more than 60 days late triggers a minimum penalty of $525 or 100% of the tax owed, whichever is less.12Internal Revenue Service. Topic No. 653, IRS Notices and Bills, Penalties and Interest Charges On a small balance, that minimum can exceed the tax itself. Being 16 doesn’t change any of this.
If no tax is owed, there is no penalty for filing late or not filing at all. Filing can still be worth the effort to recover federal income tax that was withheld from paychecks during the year.
State Taxes Follow Their Own Rules
These figures are all federal. Most states that have an income tax set their own dependent filing thresholds, and those are often lower than the federal numbers. Some states follow the federal Kiddie Tax rules; others calculate a child’s unearned income tax independently. A child who owes nothing to the IRS can still owe state tax. Check your state revenue department for the specific threshold that applies to dependents.