How the IRS decides who claims the child
After a divorce or separation, only one parent can claim a child as a dependent in a given year. The IRS doesn't care whose turn it "feels" like — it starts from a single fact: who the child lived with the most.
The custodial parent is about nights, not money
The custodial parent is the parent with whom the child spent the greater number of nights during the tax year. That parent has the default right to claim the child and the benefits that come with it. The other parent is the noncustodial parent.
Equal nights? If the child spent the same number of nights with each parent, the tie-breaker generally goes to the parent with the higher adjusted gross income. The calculator applies this automatically and tells you when a tie-breaker decided it.
What Form 8332 actually moves
The custodial parent can release the right to claim the child to the noncustodial parent by signing Form 8332. The noncustodial parent attaches it to their return. This is where most people — and most calculators — get it wrong. Releasing the claim does not hand over everything.
| Benefit | Moves with Form 8332? |
|---|---|
| Child Tax Credit / Additional CTC | Yes → noncustodial |
| Credit for Other Dependents ($500) | Yes → noncustodial |
| Earned Income Tax Credit (EITC) | No — stays custodial |
| Head of Household filing status | No — stays custodial |
| Child & Dependent Care Credit | No — stays custodial |
Because the EITC, Head of Household, and the dependent-care credit can't be transferred, signing Form 8332 only makes sense when the noncustodial parent can use the Child Tax Credit more fully than the custodial parent could — for example, when the custodial parent's income is low enough that only the refundable portion is reachable. Our calculator does this comparison for you.
The 2026 figures this uses
| 2026 parameter | Amount |
|---|---|
| Child Tax Credit (per child, under 17) | $2,200 |
| Refundable portion (Additional CTC, per child) | up to $1,700 |
| Credit for Other Dependents | $500 |
| CTC phase-out begins (single / HOH) | $200,000 |
| Max EITC — 1 child / 2 / 3+ | $4,427 / $7,316 / $8,231 |
| Std. deduction — Single / HOH | $16,100 / $24,150 |
| Dependent-care credit (top rate, 2026) | up to 50% of $3,000/$6,000 |
The Child Tax Credit was set at $2,200 per child by the One Big Beautiful Bill Act (P.L. 119-21) and begins inflation indexing with the 2026 return. A new rule also requires that at least one filer claiming the credit hold a Social Security number valid for work, and the child must have a valid SSN to qualify for the CTC.
Alternating years
Many decrees alternate the claim year to year. Form 8332 can be signed for a single year or for multiple future years at once. If you alternate, run this calculator for the current year — the better answer can flip between years as incomes change. Remember that even in a "noncustodial" year, the custodial parent keeps the EITC, Head of Household status, and the dependent-care credit.