Child support payments are not tax deductible for the person paying them
The IRS does not allow you to deduct child support on your federal income tax return, even though you pay it with after-tax dollars. This rule has been in place since 1985 and applies to all child support arrangements — whether ordered by a court, set through a written agreement, or paid voluntarily. The person receiving child support also does not report it as income on their tax return.
This is different from alimony (spousal support), which has its own tax treatment that changed in 2019. Many people confuse the two because they often appear together in divorce or separation agreements, but the IRS treats them completely separately for tax purposes.
Key Takeaways
- Child support payments cannot be deducted from your taxable income, regardless of the amount you pay or whether a court ordered it.
- The person receiving child support does not report it as income, so neither party gets a tax benefit from the payment.
- Alimony (spousal support) has different tax rules than child support, especially for agreements signed after December 31, 2018.
- If your divorce or separation agreement lists both child support and alimony, only the alimony portion may be deductible under current rules.
- You should keep records of all child support payments in case the IRS questions your tax return or you need to prove compliance with a court order.
How the IRS defines child support versus alimony
The IRS looks at the language in your divorce decree, separation agreement, or court order to determine what counts as child support. Child support is any payment made for the care, support, maintenance, or education of a child of the payer. It does not matter whether the payment is called "child support" in the agreement — the IRS looks at the actual purpose.
Alimony (also called spousal support or maintenance) is a payment made to a spouse or former spouse for their own support. The key difference is that child support is for the benefit of the child, while alimony is for the benefit of the other adult. If an agreement says "the payer will pay $1,500 per month for child support and $500 per month for alimony," only the $500 alimony portion could potentially be deductible — but only if the agreement was signed before January 1, 2019.
Some agreements do not separate the two amounts. If your order says "the payer will pay $2,000 per month in support," the IRS will try to determine how much is for the child and how much is for the spouse. If the agreement does not make this clear, you may need to contact the court that issued the order to get a clarification.
What changed with alimony deductions in 2019
For divorce or separation agreements signed on or after January 1, 2019, alimony is no longer deductible by the payer and is no longer reported as income by the recipient. This change was part of the Tax Cuts and Jobs Act of 2017 and took effect in 2019.
If your agreement was signed before January 1, 2019, the old rules still explore: the payer can deduct alimony, and the recipient must report it as income. This creates a significant difference depending on when your agreement was finalized. If you have an older agreement and are still paying alimony, you may be able to deduct it. If your agreement is newer, you cannot.
Child support has never been deductible, even under the old rules. This has not changed and will not change based on the date of your agreement.
Why the IRS does not allow child support deductions
The IRS treats child support as a personal obligation rather than a business or investment expense. The money you pay goes directly to support a dependent, which is considered a personal family matter. Because the child is your dependent (or the dependent of the other parent), the IRS reasons that you already receive a tax benefit through the dependent exemption or child tax credit claimed by the custodial parent.
This approach is consistent with how the IRS treats other personal expenses. You cannot deduct money you spend on your child's food, clothing, housing, or education if you are paying it directly. Child support works the same way — it is a direct payment for the child's support, so it is not deductible.
The custodial parent (the one receiving the support) also does not report child support as income. This means child support is treated as a transfer of money between parents, not as income to either party. The IRS does not tax the same dollar twice, and it does not tax money that is straightforward moving between two people responsible for the same child.
How to report child support on your tax return
You do not report child support anywhere on your federal income tax return. You do not claim it as a deduction, and you do not list it as an expense. If you are using tax software, you will not find a line item for child support payments.
However, you should keep records of all child support payments you make. If you pay through the court system, the court will send you a statement each year showing what you paid. If you pay directly to the other parent, keep copies of checks, bank transfers, or receipts. These records protect you if the IRS ever questions your return or if there is a dispute about whether you have met your court-ordered obligations.
If your divorce agreement includes both child support and alimony, and your agreement was signed before 2019, you will need to report only the alimony portion on Schedule 1 (Form 1040) as a deduction. Make sure your agreement clearly separates the two amounts so you know exactly what portion is deductible.
What happens if your agreement does not separate child support from alimony
Some older divorce decrees combine child support and alimony into a single payment without specifying how much is for each purpose. If this is your situation, you have a few options.
First, contact the court that issued the original order and ask for a clarification or amended order that breaks out the child support and alimony amounts separately. Many courts will do this without requiring you to go back to court — you may be able to request it by mail or through the court clerk's office.
Second, if the court will not clarify, you can contact your ex-spouse and ask them to sign a written agreement that specifies the split. This agreement does not have to go back to court; it just needs to be in writing and signed by both of you. Keep a copy for your records and for the IRS if they ever question your return.
Third, if neither of those options works, the IRS has rules for determining the split based on the facts of your case. This is more complicated and may require you to work with a tax professional or attorney. Do not guess or make up a number — if you cannot document the split, it is safer to treat the entire payment as child support (which is not deductible) than to claim a deduction you cannot support.
State tax rules for child support
Most states follow the federal rule: child support is not deductible on your state income tax return. However, a few states have different rules, and some states do not have income tax at all.
If you live in a state with income tax, check your state's tax instructions or contact your state tax agency to confirm whether child support is deductible under state law. Even if your state allows a deduction (which is rare), you still cannot deduct it on your federal return.
If you pay child support to someone in a different state, you follow the rules of the state where you live for your own tax return. The state where the recipient lives does not affect your deduction.
Frequently Asked Questions
Can I deduct child support if I have custody part of the time?
No. Child support is not deductible regardless of how much time you spend with the child or whether you share custody. The rule is the same whether you pay full child support, partial support, or any amount in between. The only exception would be if part of your payment is actually alimony to your ex-spouse, which may be deductible under older agreements.
What if I pay child support and also claim the child as a dependent?
You cannot claim a child as your dependent if you are required to pay child support and the other parent has custody. The custodial parent (the one the child lives with most of the time) claims the dependent exemption and the child tax credit. If you share custody equally, you may be able to claim the child in alternating years, but you still cannot deduct the child support you pay.
Do I need to report child support payments to the IRS?
You do not need to report child support on your tax return, but you should keep records of all payments. If you pay through the court system, keep the annual statement. If you pay directly, keep copies of checks or bank records. These records protect you if there is ever a question about whether you paid what you owed.
If my agreement says "family support" instead of "child support," can I deduct it?
It depends on what "family support" actually covers. If the payment is for the child's support, it is treated as child support and is not deductible. If it is split between the child and your ex-spouse's support, only the portion for your ex-spouse may be deductible (if your agreement is old enough). You may need to ask the court to clarify what portion of "family support" is for the child versus the adult.
What if I pay child support but the other parent does not report it as income?
That does not change your tax situation. Child support is not reported as income by either party, so there is no income to report. If the IRS ever questions the other parent's return, that is between them and the IRS. Your obligation is to pay what the court ordered and keep records of those payments.