The tests, the tie-breakers, and divorced parents.
Claiming a dependent can be worth thousands of dollars: the $2,200 Child Tax Credit, head of household status, the Earned Income Tax Credit, the child care credit, and Colorado’s family credits all depend on it. The rules are mechanical, and when two people claim the same person, the IRS applies them strictly.
For 2025 and 2026 returns. Current as of October 11, 2026.
Each benefit has its own extra conditions, but they all start with the same question: is this person your dependent?
| Benefit | Value | Who it needs |
|---|---|---|
| Child Tax Credit | $2,200 per child, up to $1,700 refundable | Qualifying child under 17 with a Social Security number |
| Credit for other dependents | $500 each | Any other dependent: older children, parents, children with an ITIN |
| Head of household status | Bigger standard deduction and wider brackets than single | An unmarried taxpayer paying more than half the cost of a home for a qualifying person |
| Earned Income Tax Credit | Up to $8,231 for 2026 | A qualifying child who lived with you more than half the year |
| Child and dependent care credit | Up to $3,000 from 2026 | A child under 13, or a spouse or dependent who can’t care for themselves |
| Education credits | Up to $2,500 per student | The student must be you, your spouse or your dependent |
Colorado’s child tax credit and child care credit follow the same federal dependents. (See the Child Tax Credit and the child care credit.)
A qualifying child has no income limit. Your child can earn $30,000 and still be your dependent, as long as all five tests are met.
Your son, daughter, stepchild, adopted child or eligible foster child; your brother, sister, half-sibling or step-sibling; or a descendant of any of them, like a grandchild, niece or nephew.
Under 19 at the end of the year, or under 24 and a full-time student for at least five months of the year, and younger than you (or your spouse). A child who is permanently and totally disabled qualifies at any age.
Lived with you for more than half the year. Time away at school, in the hospital, in juvenile detention or on military service counts as time at home. A child born or who died during the year counts if your home was their home for the time they were alive.
The child didn’t pay for more than half of his or her own support. Note the test: it’s whether the child provided half, not whether you did. Scholarships don’t count as the child’s support.
The child isn’t filing a joint return with a spouse, unless only to claim a refund of withholding.
A dependent must be a U.S. citizen, national or resident, or a resident of Canada or Mexico. Someone who is a dependent can’t claim dependents of their own.
A person who isn’t anyone’s qualifying child may still be your dependent. This is how people claim aging parents, adult children with little income, and other relatives they support.
The person can’t be your qualifying child or anyone else’s.
Either related to you (children, parents, grandparents, siblings, in-laws, aunts, uncles, nieces, nephews, step-relatives), or living with you all year as a member of your household, like a partner. A parent doesn’t have to live with you.
Under $5,200 for 2025 and $5,300 for 2026. Social Security that isn’t taxable doesn’t count toward this, which is why many retired parents qualify.
You paid more than half of the person’s total support for the year: housing, food, medical care, clothing, transportation. Their own Social Security spent on themselves counts as their support, not yours.
If no one pays more than half but together you do, any one of you who paid more than 10% can claim the parent. The others sign a statement agreeing not to, and the one claiming attaches Form 2120. You can rotate the claim from year to year.
A child can be the qualifying child of more than one person: two parents living apart, or a parent and a grandparent in the same house. Only one can claim the child for the child-related benefits. If you can’t agree, the IRS uses these tie-breakers:
If a parent can claim the child, a grandparent or aunt can only claim the child if the parent doesn’t, and only if their AGI is higher than any parent’s.
Between two parents who don’t file together, the one the child lived with for more nights during the year.
If the nights are exactly equal, the parent with the higher adjusted gross income.
If no parent can claim the child, the eligible person with the highest AGI.
For tax purposes, the custodial parent is the one the child spent more nights with during the year, whatever the custody order says. That parent claims the child. But the custodial parent can release part of the claim to the other parent.
The custodial parent signs Form 8332, and the noncustodial parent attaches it. It lets the noncustodial parent claim the child as a dependent for the Child Tax Credit and the credit for other dependents.
Head of household status, the Earned Income Tax Credit, and the child care credit stay with the custodial parent no matter what. Splitting them this way is often the best result for the family overall.
For decrees after 2008, the IRS won’t accept pages of the decree in place of Form 8332, even if the decree says who claims the child. The custodial parent has to sign the form or an equivalent statement. A decree can require the other parent to sign, but enforcing that is a matter for the court, not the IRS.
A release can cover one year, several years or all future years. The custodial parent can revoke it using Part III of Form 8332, effective the following year, after giving the other parent a copy.
Under 24 and full-time, and time at school counts as living at home, so most college students remain qualifying children. The student shouldn’t claim themselves. Only one return gets the education credit for that student.
Over 24 and not disabled, a child can only be a qualifying relative: income under $5,300 for 2026 and you pay more than half their support. The $500 credit for other dependents and head of household status can still apply.
A parent doesn’t have to live with you. If the parentIf the parent’s taxable income is under the limitrsquo;s gross income, not counting nontaxable Social Security, is under the limit and you pay more than half the cost of care, the parent can be your dependent, and you may qualify for head of household and deduct medical costs you pay.
An unrelated partner who lived with you all year and meets the income and support tests can be a qualifying relative, but doesn’t make you head of household.
Counts as having lived with you all year. Get the Social Security number before filing to claim the full Child Tax Credit.
The second e-filed return is rejected. The second parent can file on paper, and the IRS will apply the tie-breakers and send letters to both. It’s faster and cheaper to agree first.
Usually, yes. A full-time student under 24 can be your qualifying child, and time at school counts as time living with you, as long as he didn’t pay for more than half of his own support.
Not if she’s your qualifying child, because there’s no income limit for a qualifying child. She can file her own return to get her withholding back, checking the box that someone can claim her.
The parent with more nights in the year. If the nights are exactly equal, the parent with the higher AGI. You can still agree to alternate years using Form 8332, but head of household and the earned income credit stay with the parent who has the child more nights.
Yes, if her gross income, not counting nontaxable Social Security, is under $5,300 for 2026 and you pay more than half her total support.
The IRS will apply the tie-breaker rules and send letters asking each of you to prove your claim. The parent who doesn’t qualify will owe back the credits, plus interest. Call us before you respond.
Bring us the custody arrangement and last year’s returns. We’ll sort out who claims what before both returns get filed. Taxes can be tough, but the Tax Shop has your back.