Dependent tax brackets are the ordinary single-filer brackets: 10% on the first $12,400 of taxable income and 12% on income from $12,401 to $50,400 for 2026.1Internal Revenue Service. Rev. Proc. 2025-32 What makes a dependent’s tax bill different is not the rates but two things wrapped around them: a standard deduction that shrinks with earnings, and a kiddie tax that can push investment income into a parent’s higher bracket.
The Rate Schedule on a Dependent’s Earned Income
Wages, salary, and other pay for work run through the same progressive schedule everyone else uses. For 2026, the first two brackets cover almost every dependent who owes anything at all:1Internal Revenue Service. Rev. Proc. 2025-32
- 10% on taxable income up to $12,400
- 12% on taxable income from $12,401 to $50,400
A dependent earning $25,000 in wages subtracts the $16,100 standard deduction, leaves $8,900 taxable, and owes $890 at the 10% rate. There is no separate “dependent rate” that makes these brackets harsher.
Why the Standard Deduction Changes the Math
The rates are the same, but the deduction that sits in front of them is not. A dependent’s standard deduction is the greater of $1,350 or earned income plus $450, capped at $16,100 for 2026.1Internal Revenue Service. Rev. Proc. 2025-32 It slides with what you actually earn from work.
A teenager with $800 in summer wages gets the $1,350 floor. A dependent earning $20,000 gets the full $16,100 cap. Most dependents with a modest part-time job owe zero federal income tax because the deduction wipes out the taxable income entirely. The formula only pinches when unearned income is in the picture, because interest and dividends do not raise the deduction.
The Kiddie Tax on Unearned Income
This is where a dependent’s effective bracket can jump. Congress built the kiddie tax to stop parents from parking investments in a child’s name to use the child’s lower rate. Under the rule, unearned income above a threshold gets taxed at the parent’s marginal rate, not the child’s.2Office of the Law Revision Counsel. 26 USC 1 – Tax Imposed
For 2026, the tiers stack this way:
- First $1,350 of unearned income: sheltered by the standard deduction and untaxed
- Next $1,350: taxed at the child’s own rate, usually 10%
- Anything above $2,700: taxed at the parent’s marginal rate
If a parent sits in the 32% bracket, dividends over $2,700 on the child’s account get taxed at 32% instead of the 10% the child would otherwise owe. The dependent reports this calculation on Form 8615.3Internal Revenue Service. Instructions for Form 8615
Who the Kiddie Tax Applies To
The rule reaches a specific set of dependents. All of these conditions must hold at the end of the tax year:2Office of the Law Revision Counsel. 26 USC 1 – Tax Imposed
- Under age 18, or
- Age 18 whose earned income did not cover more than half of their own support, or
- A full-time student ages 19 through 23 whose earned income did not cover more than half of their own support
At least one parent must be alive, and the child cannot file a joint return. A 22-year-old full-time student with a large trust fund and a $4,000 campus job is still caught by the rule, because that job income does not come close to half of their total support. A 20-year-old working full time who pays most of their own bills is not, even if a parent still claims them.
When a Dependent Has To File
Being claimed on someone else’s return does not remove the obligation to file your own. For 2026, a dependent must file if:4Office of the Law Revision Counsel. 26 USC 6012 – Persons Required to Make Returns of Income
- Earned income tops $16,100
- Unearned income tops $1,350
- With both types, gross income exceeds the larger of $1,350 or earned income plus $450
Skipping a required return runs a failure-to-file penalty of 5% of the unpaid tax per month, up to 25%,5Internal Revenue Service. Failure to File Penalty and interest accrues on any balance.6Internal Revenue Service. Failure to Pay Penalty
Self-Employment Tax Sits Outside the Brackets
A dependent who freelances, drives for a platform, or runs a small online business faces a separate tax that has nothing to do with income tax brackets. Net self-employment earnings above $400 trigger self-employment tax on Schedule SE.7Internal Revenue Service. Instructions for Schedule SE (Form 1040) The combined rate is 15.3% on the first $184,500 of net earnings, split between 12.4% for Social Security and 2.9% for Medicare.8Social Security Administration. If You Are Self-Employed
A dependent with $5,000 in freelance profit owes roughly $706 in self-employment tax regardless of what happens on the income tax side. The $400 threshold sits far below the standard deduction, so you can owe this tax while owing zero income tax.
Filing To Reclaim Withholding
The filing thresholds say when a return is required, not when one is worth filing. If an employer withheld federal income tax from a dependent’s paychecks and the year’s income comes in below the threshold, the withheld amount is a refund waiting to be claimed. The only way to get it back is to file a Form 1040.9Internal Revenue Service. Publication 501 – Dependents, Standard Deduction, and Filing Information A high school student who earned $3,000 over the summer and had $200 withheld owes nothing after the standard deduction, but that $200 stays with the IRS until they file. Filing the dependent’s return does not affect the parent’s ability to claim them.