Getting Divorced: Tax Guide
A guide by Taxstra Tax & Accounting — CPA-led tax strategy for business owners
Pre-2019 vs Post-2018 Alimony Rules
The Tax Cuts and Jobs Act fundamentally changed alimony taxation
The Tax Cuts and Jobs Act (TCJA) of 2017 eliminated alimony deductions and income for divorces finalized after December 31, 2018. This is one of the biggest tax changes impacting high-income divorces. The difference: $500k alimony payment cost the payor $150k-$185k in tax pre-2019. Post-2018, no tax benefit.
Pre-2019 Alimony: Deductible to Payor, Taxable to Recipient
Divorce finalized before Jan 1, 2019: Payor deducts alimony (IRC 71). Recipient includes alimony in income (IRC 71b). Example: $500k alimony. Payor at 37% bracket saves $185k. Recipient at 32% bracket pays $160k tax. Net: payor benefits $25k due to tax bracket difference.
Post-2018 Alimony: Not Deductible, Not Taxable
Divorce finalized Jan 1, 2019 or later: Payor cannot deduct alimony. Recipient doesn't include in income. Example: $500k alimony. Payor gets zero tax deduction ($0 benefit). Recipient pays zero tax. Net: payor loses $185k tax benefit vs pre-2019 rules.
Critical: Divorce Date Determines Rule
The divorce decree FINALIZATION date (not when papers signed, not separation date) determines which rule applies. If decree finalized Dec 30, 2018, use pre-2019 rules (alimony deductible). If Jan 1, 2019 or later, use post-2018 rules (not deductible). One day difference = $100k+ in tax impact on large alimony payments.
Divorce decree wording matters enormously. If decree says "alimony," it falls under IRC 71. If decree says "spousal support" or "maintenance," still treated as alimony for tax purposes if it meets IRC 71 requirements: (1) payment to spouse/former spouse, (2) based on divorce/separation agreement, (3) stops at death of recipient, (4) not designated as non-alimony.
Modification Requests & Alimony Rules
If you have a pre-2019 divorce decree and modified alimony after 2018, consult CPA and attorney. Some modifications trigger the new post-2018 rules; others don't. Depends on language. Could change $100k+ in tax treatment. Don't modify without understanding tax implications.
Child Support Tax Treatment
Never deductible, never taxable (same rule pre/post 2019)
Child support is never deductible by the payor and never taxable to the recipient, both pre-2019 and post-2018. This is consistent IRS rule. The distinction: child support must be for the support of the child, and must terminate at age of majority or specified age.
Child Support vs Alimony: IRS Distinction
Divorce decree must clearly specify which payments are child support (IRC 71(c)) and which are alimony (IRC 71(a)). If ambiguous, IRS will classify. Child support is never deductible/taxable. Alimony is (pre-2019) or is not (post-2018). Get attorney to clarify in decree.
Common mistake: Decree says "spouse support of $2,000/month, includes $500/month for child support." The $500 is non-deductible. The $1,500 is deductible (pre-2019) or not (post-2018). If decree doesn't specify amounts, IRS will challenge. Always specify.
Beware: Alimony Disguised as Child Support
Some payors try to claim child support as alimony to get deduction (pre-2019). IRS audits this. If support continues beyond child's majority (or doesn't clearly terminate), IRS reclassifies as alimony. Don't try this; it triggers audits and penalties.
Dependent Claims After Divorce
Who claims the child and Child Tax Credit
The parent with physical/legal custody claims the child as dependent. This gives access to Child Tax Credit ($2,000 per child in 2026), Dependent Exemption (eliminated federally but available on some state returns), and certain credits (ACTC, Lifetime Learning).
Default Rule: Custodial Parent Claims Dependent
Custodial parent (physical custody over 50% of year) claims child unless they sign Form 8332 releasing the claim to the other parent. Child Tax Credit: $2,000/child. Advanced Child Tax Credit: $200-$300/month for lower-income parents. Coordinate with ex to maximize benefit.
Divorce Decree Coordination
Decree can specify which parent claims child for tax purposes. Even if custodial parent has physical custody, decree might award tax dependency to other parent. If decree is silent, custodial parent claims by default. Coordinate with ex: sometimes one parent benefits more from credit (due to income limits). Consider trading claim with child support adjustment.
Income limits apply: Child Tax Credit phases out at $400k+ MFJ, $200k+ single (2026). Custodial Tax Credit (if parent is lower-income) also has phaseout. Coordinate strategically: sometimes the lower-income parent claiming child yields higher total family tax benefit.
QDRO Retirement Divisions
Properly structured QDROs avoid immediate taxation
A Qualified Domestic Relations Order (QDRO) is a court order dividing retirement assets (401k, pension, 403b) between spouses in divorce. If properly qualified, the receiving spouse can roll assets to their own IRA without immediate taxation. If not qualified, the transfer is treated as taxable distribution + 10% penalty (if under 59.5).
Qualified vs Non-Qualified QDRO
Qualified QDRO: transfer to ex-spouse's IRA, no tax, no penalty. Non-qualified: treated as distribution, taxable, 10% penalty if under 59.5. Example: $500k 401(k) division. Qualified QDRO = zero tax. Non-qualified = $150k-$185k in taxes + $50k penalty. Never divide retirement without QDRO.
QDRO Must Be Drafted by Attorney
Never divide retirement assets without QDRO from family law attorney. Your accountant or CPA can't draft QDRO (legal document). Cost: $500-$2k for attorney to draft. Saves $50k+ in taxes/penalties. Always use QDRO.
QDRO process: (1) Divorce attorney drafts QDRO. (2) QDRO is submitted to plan administrator for approval. (3) Plan administrator transfers ex-spouse's share to new IRA (in ex-spouse's name). (4) Transfer is tax-free; no 1099-R issued. (5) Future growth/distributions are taxed to ex-spouse. Timeline: 2-3 months typically.
Property Division & Capital Gains
Non-taxable transfers under IRC 1041
Under IRC 1041, transfers of property between spouses incident to divorce are non-taxable. If you give your ex-spouse an investment account worth $200k with basis of $100k, no capital gains tax on transfer. However, ex-spouse takes your $100k basis, so if they sell later, they owe capital gains on the $100k appreciation.
IRC 1041: Non-Taxable Property Transfers
Transfer to ex-spouse incident to divorce: zero tax on transfer. Example: real estate with $500k FMV, $200k basis. Transfer to ex = no tax. Ex-spouse takes $200k basis. If ex sells for $500k, they owe capital gains on $300k. You're not taxed; ex-spouse is (when they sell).
Basis Planning in Divorce Settlements
If dividing appreciated assets, consider trading appreciation for other assets. Example: give ex-spouse cash assets, you take appreciated real estate. Ex pays no future capital gains on cash. You can defer/plan capital gains. Coordinate with attorney and CPA to minimize tax.
Titled property (real estate, vehicles) requires deed/title transfer. Consult attorney about proper transfer process and recording. Failure to properly transfer title creates liability complications (if ex-spouse causes accident, you could still be liable if title is in your name).
| Metric | Pre2019 | Post2018 |
|---|---|---|
| Alimony Treatment (Divorce Date) | Alimony IS deductible by payor (IRC 71). Alimony IS taxable to recipient (IRC 71(b)). | Alimony is NOT deductible by payor. NOT taxable to recipient. (TCJA 2017, effective 2019+) |
| Child Support Treatment (All Dates) | Never deductible by payor. Never taxable to recipient. | Never deductible by payor. Never taxable to recipient. (No change post-2019) |
| Filing Status on Dec 31 | Divorced Dec 31: Single for year. Divorced Jan 5: Married for prior year. | Same rule applies. Dec 31 snapshot determines filing status. |
| Dependent Claim (Who Gets $2k Child Tax Credit) | Parent with custody claims (unless Form 8332 signed). Credit: $2k/child. | Same rule. Custody determines dependent claim. Credit: $2k/child (2026). |
| Retirement Account Division (QDRO) | Qualified QDRO = tax-free transfer to ex-spouse IRA. Non-qualified = taxable + 10% penalty. | Same QDRO rules apply. Must be properly drafted to avoid tax consequences. |
| Property Division Tax Treatment (IRC 1041) | Transfers between spouses incident to divorce are non-taxable. No capital gains tax on transfer. | Same rule applies. Property transfers in divorce are generally tax-free events. |
| Head of Household Eligibility | Unmarried on Dec 31, maintain home for dependent over 50% of year. HoH rate applies. | Same rule applies. HoH has better rates than Single (~$6.3k more standard deduction). |
| Innocent Spouse Relief Claim | Available if ex-spouse had unreported income/wrong deductions on joint return. Must request within 2 years of assessment. | Same rule applies. Claim Form 8857 within 2-3 years of discovering issue. |
| Estimated Tax Payments (If Self-Employed) | If divorced during year, may need separate estimate for new filing status. | Same. Filing status changes Dec 31; estimated taxes adjust accordingly. |
| Example: $500k Alimony Payment | Payor deducts $500k (saves ~$150k in federal tax at 30% bracket). Recipient pays tax on $500k. | Payor cannot deduct. Recipient pays no tax. $500k alimony has no tax benefit to payor. |
| IRS Audit Risk Post-Divorce | Higher if alimony amounts inconsistent between payor/recipient (IRS cross-checks). | Lower; no deduction/inclusion means IRS cross-checks less relevant. |
Frequently Asked Questions
10 divorce tax questions answered
More Life-Event Tax Guides
Get Expert Divorce Tax Guidance
The difference between pre-2019 and post-2018 alimony rules is worth $100k+ on large payments. QDROs, dependent claims, and property division require strategic planning. Get professional advice before signing divorce decree.
Find Out What You're Overpaying in Taxes
Book a free 30-minute call to walk through your situation. We'll tell you exactly how our CPA-led team can help — and whether we're the right fit.