How the IRS decides who’s the custodial parent
The IRS defines the custodial parent as whoever your child lived with for more nights during the year, not necessarily the parent named in a custody agreement. If a court order says something different, the IRS rules for divorced or separated parents still apply unless you also file Form 8332 (Release/Revocation of Release of Claim to Exemption for Child by Custodial Parent).
Use Form 8332 to allow the noncustodial parent to claim your child
If you’re the custodial parent, you can sign IRS Form 8332 to let the noncustodial parent claim the Child Tax Credit (CTC) and the dependency for a specific year or years. Form 8332 doesn’t transfer every benefit; the following stay with the custodial parent, no matter what the form says:
- Eligibility to claim head of household status
- The Earned Income Tax Credit (EITC)
- The Child and Dependent Care Credit (CDCTC)
The tiebreaker rule when custody is split evenly
If your child spent an equal number of nights with each of you, the IRS breaks the tie by adjusted gross income (AGI)—your total gross income minus specific adjustments. Whichever parent had the higher AGI for the year gets to claim the child on their tax return.
| Situation | Who claims the child |
|---|---|
| Child lived with one parent more nights | That parent (the custodial parent) |
| Equal nights with both parents | Parent with the higher AGI |
Source: Internal Revenue Service
What happens if you both claim the same child
If you and your child’s other parent both claim them, the IRS won’t accept both returns. Whichever return the IRS processes second gets flagged, and both of you may need to prove who’s the rightful custodial parent before each of your refunds are released.
Tax benefits that come with claiming your child
Claiming your child can unlock several tax breaks, including:
- Child Tax Credit (CTC)
- EITC
- CDCTC
- Head of Household filing status
