General information, not tax advice. Federal tax rules and credit amounts change year to year. Confirm the details for your filing year with the current IRS instructions or a tax professional. Amicably prepares divorce documents, not tax returns.
The short answer
The IRS doesn't care what your custody order calls the arrangement. For taxes, the child is claimed by the custodial parent — defined as the parent the child spent the greater number of nights with during the year. If the nights are exactly equal, the parent with the higher adjusted gross income (AGI) claims the child. Either way, the custodial parent can choose to release the claim to the other parent using Form 8332.
Who had more overnights this year?
That parent claims the child
(the "custodial parent")
Higher-income (AGI) parent claims the child
The IRS tiebreaker.
Either way: the custodial parent can sign Form 8332 to let the other parent claim instead.
Who the IRS calls the "custodial parent"
This is the part that surprises co-parents: the "custodial parent" for taxes is a counting question, not a legal one. It's whoever the child slept with for more nights during the year — even if your parenting plan says "50/50." A night counts for the parent whose home the child sleeps at (or who the child is with, if away from home). Because a year has an odd number of nights (365), a true tie is actually uncommon — usually one parent edges ahead by a night or two, and that parent is the custodial parent for tax purposes.
Exactly equal nights: the income tiebreaker
If the overnights genuinely come out equal, the IRS breaks the tie with income: the parent with the higher AGI is treated as the custodial parent and gets to claim the child. This isn't a reward — it's just the tiebreaker rule. And it's exactly the situation where parents most often decide to plan who claims the child rather than leave it to the default (see Form 8332 below).
Alternating years: Form 8332
The custodial parent can release the right to claim the child to the other parent by signing IRS Form 8332, which the other parent attaches to their return. The release can cover a single year, several years, or all future years, and it can be revoked later (effective the following year). This is how the very common "we alternate years" arrangement actually works on paper — one parent claims in even years, the other in odd, documented with Form 8332 each release year.
What transfers — and what doesn't
Here's the nuance that trips people up: signing Form 8332 moves some tax benefits to the other parent but not all of them. Several stay with the custodial parent no matter what.
Transfers via Form 8332
Goes to the parent who claims the child.
- • The dependency claim
- • Child Tax Credit
- • Credit for Other Dependents
Stays with the custodial parent
Cannot be transferred by Form 8332.
- • Earned Income Tax Credit (EITC)
- • Head of Household status
- • Child & Dependent Care Credit
The dollar value of these credits changes by tax year and with new legislation, so check the current IRS instructions for your filing year rather than relying on a fixed figure.
What if both parents claim the child
You can't both claim the same child, and the IRS will catch it. Usually the second return to be e-filed is rejected because the child's Social Security number is already used, forcing that parent to paper-file. The IRS then applies the tiebreaker rules and reviews who was actually entitled; the parent who wasn't has to pay back the benefit, plus interest and possible penalties. It's not worth the fight — sort out who claims the child before tax season.
Put it in your parenting plan
The cleanest way to avoid a tax-season standoff is to decide who claims the child — or that you'll alternate years — and write it into your parenting plan or settlement agreement up front. One caution: the IRS follows its own rules and needs a signed Form 8332; a divorce decree that just says the noncustodial parent claims the child isn't enough on its own, though a court can order the custodial parent to sign the form. If you're divorcing in Florida with kids, this is the kind of detail a good parenting plan should nail down — see our guide to getting divorced with kids in Florida. Amicably includes a parenting plan in its flat $99 divorce package.
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Check if you qualifyFrequently asked questions
Who claims the child on taxes with 50/50 custody?
The parent the child spent more nights with during the year (the "custodial parent" for IRS purposes), regardless of what the custody order says. If the nights are exactly equal, the parent with the higher adjusted gross income claims the child. The custodial parent can also release the claim to the other parent with Form 8332.
Can both parents claim the same child on taxes?
No. Only one parent can claim a given child in a tax year, and you can't split one child between two returns. If both try, the IRS applies its tiebreaker rules and only one parent is entitled; the other must repay any benefit received.
What happens if both parents claim the child?
Typically the second return e-filed is rejected because the child's Social Security number is already used, so that parent has to paper-file. The IRS then reviews entitlement under the tiebreaker rules and requires the parent who wasn't entitled to repay the tax benefit, plus interest and possible penalties.
Does the higher-income parent claim the child in 50/50 custody?
Only when the overnights are exactly equal. The first rule is overnights — whoever had the child more nights claims. The higher-AGI rule is just the tiebreaker for a true 50/50 split, which is uncommon because a 365-night year rarely divides evenly.
What is Form 8332?
Form 8332 is the IRS form a custodial parent signs to release the right to claim the child to the other parent, who attaches it to their return. It can cover one year, several years, or all future years, and it can be revoked. It transfers the dependency and Child Tax Credit but not the EITC, Head of Household status, or the dependent care credit.
Can the noncustodial parent claim the Child Tax Credit?
Yes, but only if the custodial parent releases the claim by signing Form 8332. With that release, the Child Tax Credit and Credit for Other Dependents follow the dependency to the noncustodial parent. The EITC and Head of Household status still stay with the custodial parent.
Can divorced parents alternate claiming a child?
Yes — alternating years is very common. The custodial parent signs Form 8332 for each year (or the future years) they release the claim, letting the other parent claim the child in those years. Many parents write the alternating schedule into their parenting plan.
Does a divorce decree override the IRS rules?
No. The IRS follows its own federal rules and requires a signed Form 8332 to move the claim to the noncustodial parent — a decree's wording alone isn't enough. A state court can order the custodial parent to sign the form, but enforcing that order is a family-law matter, not something the IRS handles.
Official sources
IRS Publication 504 — Divorced or Separated Individuals
IRS Publication 501 — Dependents & the qualifying-child tiebreaker
IRS Form 8332 — Release/Revocation of Claim to Exemption
Reviewed by the Amicably document team
Amicably is a Florida registered legal document preparation service. We prepare uncontested Florida divorce packets, including parenting plans that can address who claims the children on taxes. We are not a law firm or a tax advisor and do not provide legal or tax advice; this guide is general information, not advice about your return.