The American Rescue Plan Act of 2021 temporarily expanded the child tax credit for the 2021 tax year to $3,600 per child under age 6 and $3,000 per child up to age 17.
You lose the Child Tax Credit (CTC) at age 17 because federal tax law specifies the credit applies to children under age 17 at the end of the tax year; once a child turns 17, they "age out" of this specific credit, though they might qualify for the smaller Credit for Other Dependents ($500) or remain a standard dependent for other tax benefits. This age cutoff isn't based on student status or living situation (which allow them to remain dependents), but is a strict IRS rule for the CTC.
No, if your child turned 17 in 2025, you generally won't get the main Child Tax Credit (CTC) for them because the child must be under 17 at the end of the tax year (December 31st) to qualify. Turning 17, even late in the year, makes them ineligible for the full CTC, though you might qualify for the smaller Credit for Other Dependents (ODC) if they meet other dependency tests.
To meet the qualifying child test, your child must be younger than you or your spouse if filing jointly and either younger than 19 years old or be a "student" younger than 24 years old as of the end of the calendar year.
Qualifying children can include your son, daughter, stepchild, adopted child or a descendant, foster child, brother, sister, stepbrother, stepsister or a descendant of one of these, provided they are age 18 or younger as of the end of the year (or 23 or young if the child is a full-time student).
For the federal Child Tax Credit (CTC), the qualifying child must be under age 17 at the end of the tax year (meaning 16 or younger) and meet other criteria like having a Social Security number, being a U.S. citizen/resident, and living with the taxpayer for more than half the year, with the credit amount typically up to $2,200 per child for 2025, notes the IRS, National Conference of State Legislatures, Center on Budget and Policy Priorities, and Tax Policy Center.
Increased the credit from up to $2,000 per qualifying child in 2020 to up to $3,600 for each qualifying child under age 6. Increased the credit from up to $2,000 per qualifying child in 2020 to up to $3,000 for each qualifying child ages 6 to 16. Makes 17-year-olds eligible for up to $3,000 in credit.
Your parents can claim you as a dependent on their taxes after you turn 18 if they support you financially and you meet other IRS requirements for dependent children or relatives.
Make sure your dependent meets the IRS requirements. Generally, the IRS requires that the child is under the age of 19 (or under 24 if a full-time student), lives with you for more than half the year, and does not provide more than half of their own financial support.
The IRS Child Tax Credit (CTC) has seen recent increases, with the 2025 tax year (filed in 2026) bringing the maximum credit to $2,200 per child, up from $2,000, thanks to recent legislation, with the refundable portion (ACTC) at $1,700, also indexed for inflation. Key changes for 2025-2026 include the requirement for a Social Security Number (SSN) for both child and claimant, and the credit is partially refundable, not fully, as it was in the temporary 2021 expansion.
You generally cannot claim your daughter as a dependent if she made over $5,000 (specifically, over the 2024 gross income limit of $5,050 or 2025 limit of $5,200) as a Qualifying Relative, but she might still be a Qualifying Child if she's under 19 (or 24 as a student), lived with you, and didn't provide over half her own support, as the income limit doesn't apply to Qualifying Children. The key is whether she's a Qualifying Child (no income limit) or a Qualifying Relative (income limit applies).
For UK Child Benefit, payments generally stop when a child turns 16, but can continue to age 20 if they stay in full-time education or training, requiring notification to HMRC; in the US, Social Security child benefits usually end at 18 (or 19 if a high school student) but can extend for disabled children under 22, while the Child Tax Credit (CTC) generally requires the child to be under 17 at year-end, with variations for full-time students up to 24 for dependents, so it depends on the specific country and benefit.
Other dependents—including children ages 17–18 and full-time college students ages 19–23—can be claimed for a nonrefundable credit of up to $500 each.
The underlying purpose of the CTC is to financially support families during their children's growth and development years. Consequently, once the child reaches the age of 17, the aid provided through this credit gradually lessens.
If your child is 18 or over and not in education or training
If your child is no longer enrolled on, or accepted for, eligible education or training, they can apply for Universal Credit themselves.
What kinds of taxes do teenagers have to pay? As an employee, you'll need to pay federal income tax. If you live in a state with income tax, you'll need to pay state income taxes as well, which means filing a state tax return in addition to a federal tax return.
You lose the Child Tax Credit (CTC) at age 17 because federal tax law specifies the credit applies to children under age 17 at the end of the tax year; once a child turns 17, they "age out" of this specific credit, though they might qualify for the smaller Credit for Other Dependents ($500) or remain a standard dependent for other tax benefits. This age cutoff isn't based on student status or living situation (which allow them to remain dependents), but is a strict IRS rule for the CTC.
For the federal Child Tax Credit (CTC), the qualifying child must be under age 17 at the end of the tax year (meaning 16 or younger) and meet other criteria like having a Social Security number, being a U.S. citizen/resident, and living with the taxpayer for more than half the year, with the credit amount typically up to $2,200 per child for 2025, notes the IRS, National Conference of State Legislatures, Center on Budget and Policy Priorities, and Tax Policy Center.
The criteria for claiming the Additional Child Tax Credit are below: Age limit: The child must be under 17 at the end of the US tax year (December 31). SSN: Both you and the child or dependent must have a Social Security Number issued by the tax filing deadline.
The maximum credit amount is $500 for each dependent who meets certain conditions. This credit can be claimed for: Dependents of any age, including those who are age 18 or older. Dependents who have Social Security numbers or Individual Taxpayer Identification numbers.
Yes, you can get a tax credit for a college student, but it's usually the Credit for Other Dependents (up to $500) if they are 19-23 and a full-time student, not the main Child Tax Credit (CTC), which phases out after age 16. For education-specific credits like the American Opportunity Tax Credit (AOTC), the student or parent can claim them, offering up to $2,500, but the parent must claim the student as a dependent to claim certain education credits.