Your tax filing after divorce depends almost entirely on one date: December 31. If your divorce was final by the last day of the tax year, the IRS considers you unmarried for the entire year, regardless of when the decree was signed. That single fact controls your filing status, which in turn affects your tax brackets, standard deduction, eligibility for credits, and who claims the children.
Divorce changes your tax situation in ways that are not always intuitive. Some rules follow the calendar. Others follow the date your divorce agreement was executed. A few depend on who the children slept with on any given night. This guide covers each major area, starting with the one that affects everything else: your filing status.
Your filing status for the entire year is determined by your marital status on December 31. If your divorce was finalized by December 31, you are unmarried for the full year -- even if you were married for 364 days. If your divorce was not finalized until January 1 or later, you are still married for the prior tax year.
Your filing status for the entire tax year is determined by your marital status on December 31. Not the date you filed for divorce. Not the date you separated. December 31.
If your divorce decree was finalized by December 31, you are unmarried for the entire year. You will file as either Single or Head of Household. You cannot file as Married Filing Jointly, even if you were married for 364 days of the year.
If your divorce was not finalized until January 1 or later, you are still married for the prior tax year. You can file Married Filing Jointly or Married Filing Separately for that year (IRS Publication 504).
Head of Household: the better option if you qualify
After divorce, most parents with custody should file as Head of Household rather than Single. The tax savings are meaningful:
- Standard deduction for Single filers (2025): $15,750
- Standard deduction for Head of Household (2025): $23,625
- Wider tax brackets at every income level
To qualify for Head of Household, you must meet three tests (IRS Publication 501):
- You are unmarried (or considered unmarried) on December 31
- You paid more than half the cost of keeping up your home for the year
- A qualifying person lived with you for more than half the year
A qualifying person is typically your child, but can also be a qualifying relative. The important detail: even if you signed Form 8332 releasing your right to claim the child as a dependent (more on that below), you can still use that child as your qualifying person for Head of Household status. The IRS treats these as separate questions.
Legal separation vs. still married
Some states issue legal separation decrees that are not the same as a divorce. Whether a legal separation counts as "unmarried" for IRS purposes depends on your state's law and the specific decree. Technical detail
Alimony: The Date of Your Agreement Changes Everything
How alimony (also called spousal support or maintenance) is taxed depends on one specific date: when your divorce or separation agreement was executed.
Agreements executed on or before December 31, 2018
Under the old rules, alimony was deductible by the person paying it and taxable income for the person receiving it. This was governed by IRC Sections 71 and 215. If your agreement was signed on or before December 31, 2018, those old rules still apply, and will continue to apply for the life of the agreement.
The practical effect: the payer gets a tax break, and the recipient reports the payments as income.
Agreements executed after December 31, 2018
The Tax Cuts and Jobs Act (TCJA) repealed the alimony deduction for any agreement executed after December 31, 2018. Under the current rules:
- The payer cannot deduct alimony payments
- The recipient does not include alimony in taxable income
This is a permanent change. It does not sunset with other TCJA provisions.
What about modifications to pre-2019 agreements?
If you had a pre-2019 agreement and later modified it, the old (deductible/taxable) rules still apply unless the modification specifically states that the post-2018 rules should apply. Simply amending the payment amount does not trigger the new rules. The modification has to explicitly adopt them (IRS FAQ on Alimony).
Why this matters for settlement negotiations
If your divorce is still being negotiated, the alimony tax treatment is baked in. The payer cannot deduct the payments, which means a dollar of alimony costs a dollar after tax. Under the old rules, a payer in the 32% bracket could deduct the payment and effectively pay 68 cents per dollar of alimony. This shift in who bears the tax cost should be factored into the total settlement math, not treated as a footnote.
Who Claims the Children: Tiebreaker Tests and Form 8332
Claiming a child as a dependent unlocks several tax benefits: the Child Tax Credit, Head of Household status, the Earned Income Tax Credit, and the Child and Dependent Care Credit. After divorce, only one parent can claim each child in any given year. The rules for who gets to claim are more nuanced than most people expect.
The default rule: the custodial parent claims
The custodial parent is the parent with whom the child lived for the greater number of nights during the tax year. Not who has legal custody. Not who pays more support. Where the child actually slept (IRS Publication 504).
If the child spent an equal number of nights with each parent, the tiebreaker goes to the parent with the higher adjusted gross income (AGI).
Releasing the claim with Form 8332
The custodial parent can release their right to claim the child to the noncustodial parent by signing Form 8332 (Release/Revocation of Release of Claim to Exemption for Child by Custodial Parent). This release can be for a single year, multiple specific years, or all future years.
Technical detail
What transfers and what doesn't
When a custodial parent signs Form 8332, the noncustodial parent gains the right to claim:
- Child Tax Credit (or Credit for Other Dependents)
- The dependency exemption Currently suspended through 2025 under TCJA, but set to return in 2026 unless extended.
The noncustodial parent does not gain the right to claim:
- Head of Household filing status (stays with the custodial parent)
- Earned Income Tax Credit (stays with the custodial parent)
- Child and Dependent Care Credit (stays with the custodial parent)
- Exclusion for dependent care benefits (stays with the custodial parent)
This split is one of the most commonly misunderstood rules in divorce tax planning. Many divorce agreements assign "the exemption" to one parent without specifying which credits follow. The IRS doesn't care what your divorce decree says about credits that can only be claimed by the custodial parent.
If you previously released your claim and want to take it back, you can file a revocation on Part III of Form 8332. The revocation takes effect no earlier than the tax year after you provide the revocation to the noncustodial parent. You must also attach a copy to your tax return for the first year it applies.
Child Tax Credit After Divorce
The Child Tax Credit for 2025 is worth up to $2,200 per qualifying child under age 17. Up to $1,700 of this is refundable as the Additional Child Tax Credit. Only one parent can claim the credit for each child in a given year.
Splitting the credit between parents
The IRS does not allow parents to split the Child Tax Credit for the same child. One parent claims the full credit; the other claims nothing for that child. However, parents with multiple children can divide: Parent A claims Child 1 while Parent B claims Child 2.
If the custodial parent has signed Form 8332, the noncustodial parent claims the Child Tax Credit. If no Form 8332 exists, the custodial parent claims it.
Income phaseouts
The credit begins to phase out at:
- $200,000 of modified AGI for Single and Head of Household filers
- $400,000 for Married Filing Jointly
After divorce, each parent's income is evaluated individually. A couple that previously had a combined income under $400,000 may find that one or both parents now exceed the $200,000 threshold as single filers.
Strategic considerations
If one parent earns significantly more than the other and is approaching the phaseout, it may make more sense for the lower-earning custodial parent to claim the credit. But if the higher-earning parent is well below the phaseout, signing Form 8332 might produce a larger total tax benefit across both households. The math depends on specific incomes.
Property Settlements: No Tax at Transfer, But Basis Follows
Dividing property in a divorce does not trigger a taxable event at the time of transfer. Technical detail
This sounds straightforward, but the hidden cost is in the basis.
Carryover basis: the tax bill you inherit
When you receive property in a divorce settlement, you receive the transferring spouse's adjusted basis in that property. This is called "carryover basis." The asset's fair market value at the time of divorce is irrelevant for tax purposes.
Example: Your spouse bought stock for $20,000 ten years ago. It's worth $120,000 when transferred to you in the settlement. Your basis is $20,000, not $120,000. If you sell the stock for $120,000, you owe tax on $100,000 of capital gain.
This means that not all assets in a divorce settlement are worth the same after tax. A brokerage account worth $200,000 with a basis of $50,000 is worth less (after taxes) than $200,000 in cash. A CPA can calculate the after-tax value of each asset to ensure the split is genuinely equitable.
- Cost basis: $50,000
- Embedded capital gain: $150,000
- Tax on sale (20% + 3.8% NIIT): $35,700
- No embedded gain
- No tax due on receipt
- Full value available immediately
A transfer qualifies for tax-free treatment under Section 1041 if it occurs:
- During the marriage, or
- Within one year after the marriage ends, or
- Within six years after the marriage ends, but only if the transfer is made pursuant to the divorce or separation instrument
Technical detail
Documentation the transferring spouse must provide
The spouse who transfers property must provide the recipient with records sufficient to determine the adjusted basis and holding period of the property. If you're receiving assets, insist on this documentation during the settlement process, not after. Tracking down cost basis years later is difficult and sometimes impossible.
Selling the Marital Home: Section 121 Exclusion
If you sell the home you lived in during the marriage, you may be able to exclude up to $250,000 of capital gain from income ($500,000 if you still qualify to file jointly for the year of sale). This is the Section 121 exclusion under IRC Section 121.
The ownership and use tests
To qualify for the exclusion, you must have owned and used the home as your principal residence for at least two of the five years before the sale. Both tests must be met independently.
Divorce-specific rules that expand eligibility
The tax code includes two provisions specifically designed for divorce situations:
Ownership credited from your ex-spouse. If your divorce decree grants you the home and your ex-spouse owned it before the divorce, you can count their period of ownership toward the two-year ownership test. IRC Section 121(d)(3)(A).
Use counted while your ex-spouse lives there. If you own the home but your ex-spouse lives in it under the terms of the divorce or separation instrument, the IRS treats you as using the home during that period. This prevents the use test from failing simply because you moved out as part of the divorce. IRC Section 121(d)(3)(B).
After divorce, the exclusion drops to $250,000
Once you are divorced, you can no longer claim the $500,000 married exclusion. Each ex-spouse can individually claim up to $250,000, but only if they independently satisfy the ownership and use tests.
If the home has appreciated significantly, the $250,000 cap may not cover the full gain. For a couple who bought a home for $300,000 and it's now worth $900,000, the $600,000 gain exceeds even the married exclusion. Planning the timing of the sale relative to the divorce can matter.
Selling before vs. after the divorce
If both spouses still qualify for the exclusion and the gain exceeds $250,000, selling before the divorce is finalized allows the $500,000 married exclusion. After the divorce, each person is limited to $250,000 on their share of the gain.
QDROs: Splitting Retirement Accounts Without Penalties
A Qualified Domestic Relations Order (QDRO) is a court order that directs a retirement plan administrator to pay a portion of one spouse's retirement benefits to the other spouse. It applies to employer-sponsored plans governed by ERISA: 401(k)s, 403(b)s, pensions, and similar plans.
If QDRO funds are rolled into an IRA first and then withdrawn, the 10% early withdrawal penalty applies to anyone under 59-1/2. The penalty exemption only works for distributions taken directly from the employer plan under the QDRO. The order of operations matters.
When retirement assets are transferred under a QDRO, the transfer itself is not a taxable event. The receiving spouse (called the "alternate payee") becomes the owner of their portion and is taxed only when they take distributions.
The receiving spouse has two options:
- Roll the funds into their own IRA or qualified plan. No tax is owed at the time of the rollover. Taxes apply only when distributions are eventually taken.
- Take a cash distribution. The distribution is taxable as ordinary income. However, distributions made directly from a qualified plan under a QDRO are exempt from the 10% early withdrawal penalty, even if the alternate payee is under 59 and a half.
Technical detail
This penalty exception applies only to distributions taken directly from the employer plan under the QDRO. If the funds are first rolled into an IRA and then withdrawn, the 10% penalty applies to withdrawals before age 59 and a half.
IRAs don't need a QDRO
Dividing an IRA in a divorce does not require a QDRO. The transfer is done under a "transfer incident to divorce" directly between IRA custodians, and it is not taxable if properly executed. Technical detail
Getting the QDRO right matters
A QDRO that is drafted incorrectly can be rejected by the plan administrator, delaying the transfer and potentially creating unintended tax consequences. Most divorce attorneys recommend having a QDRO specialist or the plan's own model QDRO template used to avoid rejection. The cost of having a QDRO prepared is typically $500 to $1,500 and is well worth the prevention of a rejected order.
| Action | Key Date or Deadline | Form or Reference |
|---|---|---|
| Filing status determined | December 31 of tax year | IRS Publication 504 |
| Alimony deduction cutoff | Agreement executed before/after Dec 31, 2018 | IRC Sections 71, 215 (repealed for post-2018) |
| Form 8332 dependency release | Attach to noncustodial parent's return | Form 8332 |
| Form 8332 revocation effective | Tax year after notice to other parent | Form 8332, Part III |
| Property transfer tax-free window | Within 1 year, or within 6 years if per decree | IRC Section 1041 |
| Section 121 home sale exclusion | Ownership and use: 2 of 5 years before sale | IRC Section 121 |
| QDRO submission to plan | Before distribution; no IRS deadline but plan rules apply | Plan administrator |
| Child Tax Credit (2025) | $2,200 per qualifying child | IRS CTC page |
When to Get Professional Help
Divorce creates a set of interlocking tax decisions where the right answer for one question depends on the answer to another. Whether to sign Form 8332 depends on who benefits more from the Child Tax Credit. Whether to sell the house before or after the divorce depends on how much gain exceeds $250,000. Whether to take a QDRO distribution or roll it over depends on your age and need for cash.
A CPA who regularly works with divorced clients can model these scenarios with your actual numbers in a single session. The variables are your income, your ex-spouse's income, the children's custody arrangement, the property and its basis, and the retirement accounts involved. The cost of that session is small relative to the tax consequences of getting any of these decisions wrong.