Updated: 2026-10-16
Quick answer: When parents live apart, the IRS treats the parent the child lived with for more nights during the year as the custodial parent. That parent gets head of household status, the earned income credit, and the dependent care credit for the child, and those three cannot be handed to the other parent. The custodial parent can release only the child’s dependency claim and the child tax credit to the other parent by signing Form 8332.
Disclaimer: This article is general information based on IRS publications for the 2025 tax year (the returns most people file in 2026). It is not tax or legal advice. Tax rules change, and your situation may have details that change the answer, so check with a CPA, an enrolled agent, or the IRS before you file.
Filing taxes after divorce is where a lot of co-parents find out their parenting plan and the tax code do not use the same words. The order says “joint custody.” The IRS asks a simpler question: where did the child sleep? Two parents who both file as head of household with the same child, or both claim the same child tax credit, will get a letter from the IRS months later, and one of them will owe money back.
This guide covers co-parenting and taxes as a whole: your filing status in the year you divorce, who can file as head of household, how the child tax credit, earned income credit, and dependent care credit split, and what to put in your agreement. Two related topics have their own guides. For the release form itself, see our guide to IRS Form 8332. For alimony, see is spousal support taxable.
Table of Contents
- What is your filing status in the year you divorce?
- Who counts as the custodial parent for taxes?
- Which tax benefits can co-parents split, and which can’t they?
- Can both parents claim head of household?
- Who gets the child tax credit?
- Who gets the earned income credit and the dependent care credit?
- What happens if both parents claim the same child?
- Are child support, alimony, and divorce costs taxable or deductible?
- What should your parenting plan say about taxes?
- Frequently Asked Questions
What is your filing status in the year you divorce?
Your filing status depends on your marital status on December 31. Under IRS Publication 501, if you are divorced under a final decree by the last day of the year, you are considered unmarried for the whole year, and you cannot file a joint return for that year. If the divorce is not final by December 31, you are still married for tax purposes, even if you moved out in March.
That date matters more than most people expect. A divorce finalized on January 3 means you file the previous year as a married person. If your case is close to the end of the year, our guide to how long a divorce takes explains the waiting periods that control when a judge can sign.
In the table below, HOH means head of household.
| Status on Dec 31 | Filing options |
|---|---|
| Divorced (final decree) | Single, or HOH if eligible |
| Legally separated by decree | Single, or HOH if eligible |
| Still married | Joint or separate |
| Married, apart last 6 months | Joint, separate, or HOH if “considered unmarried” |
Pub. 501 adds one guardrail: if you divorce only to file as unmarried and then remarry each other the next year, you must file as married for both years.
Should you file jointly one last time?
If you are still married on December 31, a joint return is often cheaper, but it carries a risk that survives the divorce. IRS Publication 504 says each spouse can be held responsible for all the tax, interest, and penalties on a joint return, and that this applies even if your divorce decree says your former spouse will pay. If you have doubts about what your spouse reports, married filing separately protects you. If a joint return you already filed turns out to be wrong because of your spouse’s income, Pub. 504 points to innocent spouse relief, requested on Form 8857.
Who counts as the custodial parent for taxes?
For tax purposes, the custodial parent is the parent the child lived with for the greater number of nights during the year. The court order’s label does not decide it. Pub. 501 counts a night as spent with a parent if the child sleeps at that parent’s home, whether or not the parent is there, or with that parent somewhere else, such as on vacation.
If the nights are exactly equal, the custodial parent is the parent with the higher adjusted gross income. If you separated partway through the year, you count nights only for the rest of the year after the separation. These rules also apply to parents who never married, as long as they lived apart for the last six months of the year.
At true 50/50, the count can come down to one or two nights, so keep a calendar. Our guide to who is the custodial parent in 50/50 custody walks through how the night count works with common schedules.
Which tax benefits can co-parents split, and which can’t they?
Only one parent can use a given child for the five main child-related tax benefits, and parents cannot agree to divide them however they like. Pub. 501 lists the five as the child tax credit (with the additional child tax credit and credit for other dependents), head of household filing status, the dependent care credit, the exclusion for dependent care benefits, and the earned income credit.
The one exception is the Form 8332 release. When the custodial parent signs it, Pub. 501 says only the noncustodial parent can claim the child as a dependent and take the child tax credit for that child. But only the custodial parent can take the dependent care credit or exclusion, and the noncustodial parent generally cannot use the child for head of household status or the earned income credit.
| Tax benefit | Custodial parent | Other parent with 8332 |
|---|---|---|
| Dependency claim | Released | Yes |
| Child tax credit | Released | Yes |
| Head of household | Keeps it | No |
| Earned income credit | Keeps it | No |
| Dependent care credit | Keeps it | No |
| Dependent care FSA | Keeps it | No |
So a release moves two things, not everything. A noncustodial parent who signs a settlement thinking they “get the kids for taxes” in alternate years should know which benefits that phrase actually covers.
Can both parents claim head of household?
Not with the same child. Pub. 501 states that a person cannot qualify more than one taxpayer to use head of household filing status for the year, and a noncustodial parent cannot use a child who is their qualifying child only because of a Form 8332 release.
To file as head of household, Pub. 501 requires that you are unmarried or “considered unmarried” on the last day of the year, that you paid more than half the cost of keeping up your home for the year, and that a qualifying person lived with you for more than half the year. Head of household usually means a lower tax rate and a higher standard deduction than filing single, which is why both parents want it.
Parents with two or more children can sometimes each file as head of household, but only if each parent is the custodial parent of a different child. That means each child must actually spend more nights with that parent. Writing “Mom gets HOH with the older child, Dad with the younger” into an agreement does not work if both children sleep at Mom’s most nights.
The custodial parent keeps head of household status even after releasing the dependency claim. Pub. 501 says you still meet the “considered unmarried” test if you cannot claim the child only because the noncustodial parent claims the child under the divorced-parent rules.
Who gets the child tax credit?
The child tax credit goes to whoever claims the child as a dependent: the custodial parent by default, or the noncustodial parent if the custodial parent signs a Form 8332 release. On its Child Tax Credit page, the IRS lists the 2025 credit at up to $2,200 per qualifying child, with up to $1,700 of that refundable as the additional child tax credit. The full credit is available if your income is not more than $200,000, or $400,000 on a joint return.
The child must generally be under 17 at the end of the tax year and have a Social Security number valid for employment, issued before the return’s due date. Pub. 501 notes that although the dependency exemption amount is zero for 2025, the release still lets the noncustodial parent claim the child tax credit, which is why Form 8332 still matters.
The release can cover one year, specific years (such as alternate years), or all future years. It can also be revoked. Both topics, and what to do if the other parent will not sign, are covered in our Form 8332 guide.
Who gets the earned income credit and the dependent care credit?
The earned income credit
The earned income credit (EIC) stays with the custodial parent. Pub. 501 says the noncustodial parent generally cannot use the child for the earned income credit, even with a signed release. The noncustodial parent may still qualify for the smaller credit for workers without a qualifying child. IRS Publication 596 has the income limits and the full rules.
This is the benefit most often lost by accident. A lower-income custodial parent who releases the child to a higher-earning ex still keeps the EIC, but only if they actually claim it on their own return.
The dependent care credit and FSA
Daycare, after-school care, and summer day camp costs count toward the credit for child and dependent care expenses. IRS Publication 503 says the child is treated as the qualifying person of the custodial parent, the one with more nights, even if that parent cannot claim the child as a dependent. The child must be under 13 when the care is provided.
The same rule applies to dependent care benefits from an employer, such as a dependent care FSA. If the noncustodial parent pays for after-school care, they cannot claim the credit for it. Agreements sometimes handle this by having the custodial parent pay the provider directly while the other parent pays a larger share of some other cost. Our shared expenses list has a childcare category you can use to track who pays what.
What happens if both parents claim the same child?
The IRS applies tiebreaker rules. Pub. 501 says that if both parents claim the child and do not file jointly, the child is treated as the qualifying child of the parent the child lived with longer during the year. If the time was equal, the child goes to the parent with the higher adjusted gross income.
The parent who loses under the tiebreaker rules has to give up the benefits they claimed for that child, which usually means amending the return and repaying the credits. If you believe you are the one entitled to the child, file your return accurately, keep records of where the child slept, and respond to any IRS notice with that evidence. A written night-by-night calendar or a co-parenting app log is far stronger than memory.
The cleaner fix is to settle it in advance. If your order or agreement assigns the dependency claim, the custodial parent signs Form 8332 for those years, and the noncustodial parent attaches it to their return.
Are child support, alimony, and divorce costs taxable or deductible?
Child support: the IRS states in Topic 452 that child support is never deductible and is not considered income. If someone pays less than the total of alimony and child support they owe, the payment counts toward child support first. For how support amounts are set, see our guide to child support explained. Changing the amount through a child support modification does not change this tax treatment.
Alimony: the tax treatment depends on when your divorce or separation agreement was signed and where you live. That question has its own guide: is spousal support taxable.
Property transfers: Pub. 504 says that, generally, no gain or loss is recognized when you transfer property to a spouse or to a former spouse incident to the divorce. That does not mean the property comes with no future tax. The person who receives it generally takes over its tax basis, which matters when the house or investment account is later sold.
Divorce costs: Pub. 504 says you cannot deduct legal fees and court costs for getting a divorce, including fees for tax advice in connection with the divorce or for getting alimony.
Children’s medical bills: these follow a different rule. For the medical expense deduction and health savings accounts, the IRS treats a child of divorced or separated parents as a dependent of both parents, so each parent can count the qualifying costs they actually paid. Our guide to splitting medical expenses in shared custody covers that rule and how parents divide uninsured costs.
What should your parenting plan say about taxes?
A parenting plan or settlement that deals with taxes in one vague sentence will cause a dispute. These points prevent most of them:
- Who claims each child, and in which years. Name the child and the tax years, for example “the noncustodial parent claims the younger child in even-numbered years.”
- A duty to sign Form 8332. Require the custodial parent to sign and deliver it by a set date, such as February 15, for each year the other parent claims the child.
- Conditions, if any. Some agreements tie the release to child support being current by December 31. If you use a condition, state exactly how it is measured.
- The benefits that can’t move. Say plainly that head of household, the earned income credit, and dependent care benefits stay with the parent who has more nights, so no one expects otherwise.
- Childcare payment. Decide who pays the provider directly, given that only the custodial parent can take the dependent care credit.
- Records. Agree to share the year-end calendar or app records before either of you files.
Because the IRS follows nights, not the order’s wording, a plan that assigns benefits to a parent who ends up with fewer nights can still be overridden at tax time. Review the plan whenever the schedule changes.
Frequently Asked Questions
Who claims the child on taxes with 50/50 custody?
The parent with whom the child spent more nights during the year is the custodial parent and claims the child. If the nights are exactly equal, the IRS treats the parent with the higher adjusted gross income as the custodial parent. That parent can release the dependency claim and child tax credit to the other parent with Form 8332, but keeps head of household status, the earned income credit, and the dependent care credit.
Can both divorced parents file as head of household?
Yes, but not using the same child. Each parent needs their own qualifying person who lived with them for more than half the year. Parents with two or more children can each file as head of household if each is the custodial parent of a different child.
Can I file jointly if my divorce isn’t final by December 31?
Yes. If you are still legally married on the last day of the year, you can file jointly or separately for that whole year. If the divorce is final by December 31, you cannot file jointly for that year. Remember that a joint return makes each of you liable for the full tax due, even after the divorce.
Does signing Form 8332 give the other parent the earned income credit?
No. A Form 8332 release lets the noncustodial parent claim the child as a dependent and take the child tax credit. The earned income credit, head of household status, and the dependent care credit stay with the custodial parent.
Is child support taxable income?
No. The IRS says child support is never deductible by the parent who pays it and is not considered income to the parent who receives it.
Do these rules apply if we were never married?
Yes. The IRS applies the same divorced-parent rules to parents who never married, as long as they lived apart at all times during the last six months of the year.
