The TCJA eliminated the alimony deduction for divorce agreements executed after December 31, 2018. Pre-2019 divorce agreements retain the old rules unless they are modified to explicitly adopt the new rules. Child support is never deductible.
Pro Tip: If you have a pre-2019 divorce agreement, the alimony deduction is an above-the-line deduction -- you do not need to itemize. If you are renegotiating a pre-2019 agreement, be careful: modifying the agreement to adopt the new rules eliminates the deduction.
The TCJA created a bright-line rule based on divorce date. Divorce agreements executed before January 1, 2019: alimony is deductible by the payer (above-the-line) and taxable income to the recipient. Divorce agreements executed on or after January 1, 2019: alimony is not deductible and not taxable income.
If you have a pre-2019 divorce agreement and modify it, the new rules may apply to the modified agreement -- eliminating the deduction. Any modification that explicitly states the new TCJA rules apply will trigger the change. Consult a tax attorney before modifying a pre-2019 divorce agreement.
Child support is categorically different from alimony. Child support is never deductible by the payer and never taxable income to the recipient -- regardless of when the divorce was finalized. Payments that are labeled as alimony but contingent on the child's status (age, graduation, etc.) may be recharacterized as child support by the IRS.
Here is how this deduction typically works in real situations:
A taxpayer pays $24,000 per year in alimony under a divorce agreement finalized in 2016.
A taxpayer pays $30,000 per year in alimony under a divorce finalized in 2021.
A taxpayer modifies their 2015 divorce agreement in 2022 to increase alimony payments.
Key Takeaway: The difference between a valid deduction and a denied one usually comes down to documentation, usage percentage, and proper structuring. The same expense can be fully deductible, partially deductible, or not deductible at all — depending on how it is handled.
It depends on when your divorce was finalized. For divorce agreements executed before January 1, 2019, alimony is still deductible for the payer and taxable to the recipient under the old rules. For agreements executed after December 31, 2018, alimony is not deductible for the payer and not taxable to the recipient -- the TCJA permanently changed this rule.
Child support is never deductible for the payer and never taxable to the recipient -- regardless of when the divorce occurred. Pre-2019 alimony is deductible/taxable. Post-2018 alimony is neither. Payments that could be either alimony or child support must be clearly designated in the divorce agreement.
Potentially yes. If you modify a pre-2019 agreement and the modification explicitly states it is subject to the post-2018 TCJA rules, the new rules apply. If the modification does not reference TCJA, the original pre-2019 rules generally continue. This is a complex area -- always consult a tax professional before modifying a divorce agreement.
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