Alimony and Taxes: How the 2019 Rule Change Still Affects Your Return

Whether alimony is tax deductible depends entirely on when your divorce or separation agreement was executed. For agreements finalized before January 1, 2019, the payer deducts alimony and the recipient reports it as income. For agreements executed on or after that date, alimony has no tax consequences for either party. This single date divides millions of divorced taxpayers into two completely different tax regimes.

## The Pre-2019 Rules: Deductible for Payer, Taxable to Recipient

For any divorce or separation instrument executed before January 1, 2019, alimony payments are deductible by the payer and included in the recipient's gross income.

Technical detail

Under the former IRC Section 71 and Section 215, alimony qualified as an above-the-line deduction, meaning the payer did not need to itemize to claim it. The recipient reported alimony as ordinary income on their return.

This treatment created a tax arbitrage that often benefited both parties. The payer, typically in a higher tax bracket, received a deduction worth more per dollar than the tax the lower-bracket recipient owed on the same payment.

Example: Mark pays $3,000 per month ($36,000 per year) in alimony under a 2017 divorce agreement. Mark is in the 32% federal bracket; his ex-spouse Lisa is in the 22% bracket. Mark's deduction saves him $11,520 per year in federal taxes. Lisa owes $7,920 on the same $36,000. The combined tax savings to both parties is $3,600 per year.

To qualify as deductible alimony under the old rules, a payment had to satisfy all of these conditions:

• Made in cash (or check or money order)
• Made under a divorce or separation instrument
• The instrument does not designate the payment as non-alimony
• The spouses are not members of the same household when the payment is made
• There is no liability to make the payment after the recipient's death
• The payment is not treated as child support
• The spouses do not file a joint return

These pre-2019 rules remain in effect today for qualifying agreements. They did not expire. If your divorce was finalized in 2016 and your agreement has not been modified to opt into the new rules, you still deduct (or report) alimony the old way. IRS Topic No. 452 and Publication 504 confirm the continuing application of former Section 71 to pre-2019 instruments.

The Post-2019 Rules: Neither Deductible Nor Taxable

Section 11051 of the Tax Cuts and Jobs Act (TCJA) repealed IRC Sections 71 and 215, effective for any divorce or separation instrument executed after December 31, 2018.

Technical detail

TCJA Section 11051(b)(1)(B) struck Section 71 and (b)(1)(A) struck Section 215. Unlike many other TCJA provisions, this change does not sunset and will remain permanent unless Congress acts.

For agreements executed on or after January 1, 2019, alimony is not deductible by the payer and is not included in the recipient's gross income. The payment is treated, for tax purposes, as if it did not happen.

Example using the same numbers: Mark and Lisa divorce in 2020 instead of 2017, with the same $36,000 annual alimony. Mark gets no deduction. His $36,000 payment costs him the full $36,000 with no tax offset. Lisa receives $36,000 tax-free. The total tax cost to the couple is $11,520 higher than it would have been under the old rules, because Mark's deduction is gone.

This rule change fundamentally shifted how divorce attorneys and CPAs negotiate settlement amounts. Under the old system, a $36,000 alimony payment effectively cost the payer less than $36,000 after the tax deduction. Under the new system, every dollar of alimony costs the payer a full dollar.

What Happens When You Modify a Pre-2019 Agreement?

If you modify a divorce or separation agreement that was originally executed before 2019, the old rules continue to apply by default. The modification does not automatically trigger the new TCJA treatment.

Technical detail

IRS Topic No. 452 states that the new rules apply to a pre-2019 instrument modified after 2018 only if the modification "expressly provides that the repeal of the deduction for alimony payments applies."

However, both parties can voluntarily opt into the new rules by including specific language in the modification stating that the TCJA repeal applies. This might make sense in situations where the recipient's tax bracket has risen above the payer's, or where both parties prefer the simplicity of non-taxable treatment.

Without that express language, even a significant modification to payment amounts, duration, or other terms will not change the tax treatment. The agreement retains its pre-2019 character.

## Child Support vs. Alimony: The Tax Distinction

Child support is never deductible by the payer and never taxable to the recipient, regardless of when the agreement was executed. This has always been the rule, and the TCJA did not change it.

Technical detail

IRS Publication 504 distinguishes child support from alimony. A payment is treated as child support (not alimony) if the divorce instrument fixes a specific amount as child support, or if the payment is reduced based on a contingency relating to a child.

If your agreement requires both alimony and child support and you pay less than the total amount due, the IRS treats the payments as going to child support first. Only after the child support obligation is fully satisfied does any remaining amount count as alimony.

Watch for disguised child support. Even if a payment is labeled "alimony" or "spousal support," the IRS will reclassify it as child support if it is reduced based on a contingency relating to a child. The most common triggers: payments that decrease when a child turns 18, 21, or reaches the local age of majority, or payments that step down on two or more occasions tied to different children reaching specific ages between 18 and 24.

Technical detail

IRC Section 71(c)(2) (for pre-2019 agreements) defined contingency relating to a child. The IRS applies a presumption if the reduction occurs within 6 months before or after a child reaches age 18, 21, or the local age of majority.

The Recapture Rules: Preventing Front-Loading

For pre-2019 agreements where alimony is still deductible, the IRS recapture rules prevent disguising a property settlement as alimony by front-loading large payments in the first few years.

Technical detail

Former IRC Section 71(f) established the recapture mechanism. It applies when alimony payments decrease by more than $15,000 between the first three calendar years.

The recapture calculation compares payments across the first three calendar years after separation. If payments decrease significantly, the payer must "recapture" the excess by adding it back to income in the third year, and the recipient can deduct the same amount.

Simplified example: David pays $50,000 in year one, $20,000 in year two, and $15,000 in year three. The year-two recapture is the excess of year-two payments over year-three payments minus $15,000: $20,000 minus ($15,000 + $15,000) = $0 (no recapture). But comparing year one, the excess is $50,000 minus the average of adjusted year two ($20,000) and year three ($15,000) plus $15,000 = $50,000 minus $32,500 = $17,500 recapture. David reports $17,500 as additional income in year three.

Recapture does not apply if payments end because the recipient dies or remarries during the first three years. It also does not apply to payments that fluctuate based on a fixed percentage of income from a business, property, or employment.

## State-Level Variations

Federal tax law is uniform, but several states diverge on alimony treatment at the state level, creating situations where you file one way for federal and another way for state.

• New Jersey still allows payers to deduct alimony on state returns and requires recipients to report it as state income, regardless of when the agreement was executed.
• California historically followed the old federal rule for all agreements, allowing the state deduction even for post-2018 divorces. However, SB 711, signed in October 2025, conforms California to the federal TCJA treatment starting January 1, 2026. Agreements executed between 2019 and 2025 still follow the old rules for California state taxes, creating a transition period.
• New York generally follows federal tax treatment, meaning alimony under post-2018 agreements is neither deductible nor taxable at the state level.

If you live in a state that diverges from federal treatment, you will need to make adjustments on your state return. This is one of the situations where a CPA familiar with your state's rules can prevent errors that trigger notices.

Technical detail

State conformity to federal alimony rules varies. Taxpayers in non-conforming states must track two separate treatments for the same payments.