Quick Answer
Alimony payments are only tax deductible if your divorce was finalized before January 1, 2019. For divorces finalized after 2018, alimony is neither deductible for the payer nor taxable income for the recipient. This change affects approximately 600,000 divorced Americans annually.
Best Answer
Robert Kim, Tax Return Analyst
Best for people whose divorce was finalized after December 31, 2018
Are alimony payments tax deductible after 2018?
No, alimony payments are not tax deductible if your divorce was finalized after December 31, 2018. This represents one of the most significant changes from the Tax Cuts and Jobs Act, affecting how divorced couples handle their tax obligations.
The 2019 rule change explained
The Tax Cuts and Jobs Act eliminated the alimony deduction for divorce agreements executed after December 31, 2018. Under the old rules, the paying spouse could deduct alimony payments, and the receiving spouse had to report them as taxable income. Now, neither party deals with tax consequences for alimony.
Example: $24,000 annual alimony payment
Consider Sarah, who pays $2,000/month ($24,000/year) in alimony following her 2020 divorce:
Under old rules (pre-2019 divorces):
Under current rules (post-2018 divorces):
Impact on divorce negotiations
This change fundamentally altered divorce settlement strategies. Since alimony payments are now made with after-tax dollars, many couples negotiate higher alimony amounts to offset the lost tax benefit, or structure settlements differently using property transfers instead.
Comparison: Pre-2019 vs. Post-2018 divorce rules
What qualifies as alimony under current rules
Even though post-2018 alimony isn't deductible, payments must still meet specific criteria to be considered alimony rather than property settlement or child support:
What you should do
If you're paying alimony under a post-2018 divorce decree, focus on accurate record-keeping for potential modifications rather than tax planning. Consider using our return scanner to ensure you're not incorrectly claiming an alimony deduction, which could trigger an IRS audit.
For those with pre-2019 divorces, continue claiming your deduction but maintain detailed payment records including dates, amounts, and recipient information.
Key takeaway: Alimony payments from divorces finalized after 2018 are not tax deductible, eliminating a deduction that previously saved high-earning divorced individuals thousands annually in taxes.
Key Takeaway: Post-2018 divorce alimony payments are not deductible, but pre-2019 divorce payments remain fully deductible if properly documented.
Tax treatment comparison between pre-2019 and post-2018 divorce alimony rules
| Rule Aspect | Pre-2019 Divorces | Post-2018 Divorces |
|---|---|---|
| Payer deduction | Fully deductible | No deduction |
| Recipient taxation | Taxable income | Tax-free |
| Form required | Schedule 1, Line 11 | No special form |
| SSN requirement | Must provide recipient SSN | No SSN needed |
| Modification risk | Changes could affect deductibility | No tax impact from changes |
More Perspectives
Diana Flores, Tax Credits & Amendments Specialist
Best for people whose divorce was finalized before January 1, 2019
Good news: Your alimony is still deductible
If your divorce was finalized before January 1, 2019, you can continue deducting alimony payments under the original tax rules. This grandfather clause protects existing arrangements from the Tax Cuts and Jobs Act changes.
How to claim your deduction
Report alimony payments on Form 1040, Schedule 1, Line 11. You'll need your ex-spouse's Social Security number and must provide it to them for their tax filing. The IRS cross-references these numbers to prevent fraud.
Documentation requirements
Maintain detailed records of every payment including:
Example calculation
John pays $1,800/month ($21,600/year) under his 2017 divorce decree. In the 32% tax bracket, this deduction saves him $6,912 annually ($21,600 × 0.32). His ex-wife reports this as income and pays taxes based on her bracket.
Modification considerations
Be cautious about modifying your pre-2019 divorce agreement. Substantial modifications might trigger the new rules, potentially eliminating your deduction. Consult a tax professional before agreeing to changes.
Key takeaway: Pre-2019 divorce alimony remains fully deductible, potentially saving thousands in taxes, but requires meticulous record-keeping and careful handling of any modifications.
Key Takeaway: Pre-2019 divorce alimony remains fully deductible with proper documentation and careful handling of modifications.
Robert Kim, Tax Return Analyst
Best for people navigating their first tax season after divorce
First tax return after divorce: What to expect
Your first tax filing after divorce can be confusing, especially regarding alimony treatment. The key factor is your divorce finalization date, not when you separated or started making payments.
Timeline matters more than payment dates
Even if you made alimony payments throughout 2023, only the divorce finalization date determines deductibility:
Common first-year mistakes
Mistake 1: Deducting temporary support payments made during separation. Only court-ordered alimony after final divorce decree qualifies.
Mistake 2: Confusing child support with alimony. Child support is never deductible, regardless of divorce date.
Mistake 3: Claiming attorney fees as deductible. Legal fees for divorce are generally not deductible (though fees for tax advice within the divorce may be).
What to gather for your tax preparer
Bring these documents to ensure accurate filing:
Remember, this is often emotionally challenging, but accurate tax filing protects you from future IRS complications during an already difficult time.
Key takeaway: Your divorce finalization date, not separation date, determines alimony tax treatment—and mistakes in your first post-divorce return can create long-term complications.
Key Takeaway: First-year post-divorce filers must focus on finalization date and avoid common mistakes that could trigger IRS scrutiny.
Sources
- IRS Publication 504 — Divorced or Separated Individuals
- Tax Cuts and Jobs Act — Section 11051 - Repeal of Deduction for Alimony Payments
Reviewed by Robert Kim, Tax Return Analyst on February 28, 2026
This content is for educational purposes only and is not a substitute for professional tax advice. Consult a qualified tax professional for advice specific to your situation.