Alimony became non-deductible for federal income tax purposes on January 1, 2019. The Tax Cuts and Jobs Act of 2017 repealed the rule that let the paying spouse deduct alimony and required the receiving spouse to report it as income. The change applies to any divorce or separation agreement executed after December 31, 2018. Agreements finalized on or before that date keep the old treatment.1Internal Revenue Service. About Topic No. 452 Alimony and Separate Maintenance
How Alimony Used to Be Taxed
For decades, alimony worked as a tax transfer between former spouses. The payer deducted the full amount from gross income. The recipient reported the same amount as taxable income.1Internal Revenue Service. About Topic No. 452 Alimony and Separate Maintenance Because the payer was usually in a higher bracket than the recipient, shifting the income lowered the couple’s combined federal tax. A dollar moved from a 32% bracket to a 12% bracket saved 20 cents.
That savings shaped negotiations. The deduction made payments cheaper on an after-tax basis, so payers could agree to higher amounts than they would have without the tax break.
What the Tax Cuts and Jobs Act Changed
Section 11051 of the Tax Cuts and Jobs Act eliminated the alimony deduction for the payer and removed the corresponding inclusion in income for the recipient.2Congress.gov. Public Law 115-97 Alimony no longer appears in the statutory definition of gross income either.3Office of the Law Revision Counsel. 26 U.S. Code 61 – Gross Income Defined
For agreements the new rule covers, alimony is now invisible to the federal tax system. The payer sends after-tax dollars. The recipient receives them tax-free. Neither side reports the payments.
Which Agreements the Change Applies To
The dividing line is the execution date of the divorce or separation agreement, not when payments begin and not when the divorce process started. Agreements executed after December 31, 2018, fall under the new rules automatically.1Internal Revenue Service. About Topic No. 452 Alimony and Separate Maintenance “Executed” means signed and finalized by the court, not merely filed or drafted.
Agreements finalized on or before December 31, 2018, are grandfathered. The payer keeps deducting the payments, and the recipient keeps reporting them as income, for as long as that agreement remains in effect.4Internal Revenue Service. Divorce or Separation May Have an Effect on Taxes
What Happens if a Pre-2019 Agreement Is Modified
Modifying a grandfathered agreement does not automatically switch it to the new tax treatment. The old rules survive a modification unless two things happen together: the modification changes the terms of the alimony payments, and it explicitly states that the TCJA repeal of the deduction applies.4Internal Revenue Service. Divorce or Separation May Have an Effect on Taxes A modification that adjusts the payment amount but says nothing about the TCJA leaves the old treatment intact.
In practice, the tax election can become a bargaining chip during a modification. A recipient currently reporting alimony as income might want to switch so the payments become tax-free. The payer usually wants to preserve the deduction.
Is the Change Permanent?
Yes. Many individual tax provisions in the TCJA are scheduled to expire after 2025, including the expanded standard deduction and the adjusted income tax brackets. The alimony repeal is not one of them. The elimination of the deduction and inclusion is permanent and does not sunset.2Congress.gov. Public Law 115-97 Alimony will stay non-deductible for post-2018 agreements unless Congress passes new legislation restoring the old treatment.
How the Change Affects Payment Amounts
Under the old rules, a payer in the 32% bracket who paid $3,000 a month in alimony effectively spent about $2,040 after the tax savings. Without the deduction, the same $3,000 costs the full $3,000 in after-tax dollars.
Because payers can no longer offset alimony through a deduction, the total money available to fund spousal support has shrunk. Recipients often find that post-2018 alimony offers are lower than what they might have received under the old tax regime. The shared tax savings that used to enlarge the pie for both sides is gone.
What the Change Does Not Cover
Child support has never been deductible by the payer or taxable to the recipient, and the TCJA did not change that.5Internal Revenue Service. Alimony, Child Support, Court Awards, Damages 1 Property settlements are also separate: transfers of property between spouses incident to a divorce are generally not taxable events under 26 U.S.C. ยง 1041. Noncash property divisions, lump-sum settlements, and voluntary payments fall outside the alimony category.6Internal Revenue Service. Tax Considerations for People Who Are Separating or Divorcing
State income tax is a separate question. Each state sets its own policy, and not every state adopted the TCJA change on the same timeline. Some states continued to allow a payer’s deduction and require recipient reporting for state purposes after the federal deduction disappeared. If you live in a state with an income tax, check whether your state conforms to the federal treatment before you file.