Child support is not taxable income in New Hampshire under 26 U.S.C. § 61 and IRS Publication 504. The parent receiving child support owes zero federal or state income tax on those payments. The parent paying child support cannot deduct the payments from taxable income. New Hampshire has no broad-based personal income tax on wages, and the state's interest and dividends tax (repealed effective January 1, 2025) never applied to child support anyway. This rule applies to every child support order entered under N.H. Rev. Stat. Ann. § 458-C, regardless of whether the order was entered in 2026 or decades earlier.
Key Facts: New Hampshire Divorce and Child Support
| Item | Detail |
|---|---|
| Filing Fee (Divorce) | $250 (as of April 2026. Verify with your local clerk.) |
| Child Support Statute | N.H. Rev. Stat. Ann. § 458-C |
| Residency Requirement | 1 year, or both parties domiciled in NH when cause arose (RSA § 458:5) |
| Waiting Period | No statutory minimum; typical timeline 6-12 months |
| Grounds | No-fault (irreconcilable differences) plus 8 fault grounds (RSA § 458:7) |
| Property Division Type | Equitable distribution (RSA § 458:16-a) |
| Child Support Taxable? | No (federal and state) |
| Child Support Deductible? | No (payer receives no deduction) |
| State Income Tax on Wages | None |
| Interest & Dividends Tax | Repealed effective January 1, 2025 |
Is Child Support Taxable in New Hampshire?
Child support is not taxable in New Hampshire or under federal law. The parent who receives child support reports $0 of those payments as income on IRS Form 1040, and the parent who pays child support receives no deduction on Schedule 1 or anywhere else. This treatment is identical whether the paying parent sends $200 per month or $5,000 per month. The rule traces back to 26 U.S.C. § 71(c) (pre-2019 language) and remains binding today under 26 U.S.C. § 61, which excludes child support from the definition of gross income. The IRS has consistently held since Commissioner v. Lester (404 U.S. 299, 1961) that only payments clearly designated as child support fall outside taxable income.
Because New Hampshire imposes no tax on wages or salary, residents face no state income tax question on child support either. The state's narrow Interest and Dividends Tax (5% through 2023, 4% in 2023, 3% in 2024, and fully repealed January 1, 2025) applied only to investment income and never captured child support. For the 2026 tax year, a New Hampshire parent who received $18,000 in child support reports $0 on both federal Form 1040 and owes no New Hampshire return for that income.
How the IRS Treats Child Support Payments
The IRS treats child support as a tax-neutral transfer: the payer uses after-tax dollars, and the recipient receives tax-free funds. Under 26 U.S.C. § 61, gross income specifically excludes child support received, and under 26 U.S.C. § 215 (as amended by the Tax Cuts and Jobs Act of 2017), no deduction is allowed for child support paid. IRS Publication 504 (Divorced or Separated Individuals), last revised for the 2025 tax year, states this plainly on page 17: "Child support payments are not deductible by the payer and are not taxable to the payee."
This rule applies without exception. A New Hampshire father paying $1,200 per month ($14,400 annually) through the New Hampshire Division of Child Support Services cannot reduce his adjusted gross income by that amount. A New Hampshire mother receiving those same payments does not list them on Form 1040 line 1a (wages), line 2b (taxable interest), line 8 (other income), or anywhere else. The funds transfer with zero federal income tax consequence. New Hampshire residents benefit further because the state has no broad income tax to layer on top, making child support genuinely tax-free at both levels.
New Hampshire Child Support Calculation Formula
New Hampshire uses the Income Shares Model under N.H. Rev. Stat. Ann. § 458-C:3, which sets child support as a percentage of combined net income based on the number of children: 25% for one child, 35% for two children, 42% for three children, 45% for four children, and 50% for five or more children. These percentages apply to combined adjusted gross income up to $325,000 per year (the 2025 guideline ceiling, which remains in effect for 2026 per NH DHHS Commissioner's Rule He-W 805). Above that ceiling, courts have discretion to set support based on the children's reasonable needs and the parents' lifestyle.
The formula begins with gross income, subtracts federal and FICA taxes, state income taxes (if any, which does not apply to NH wages), mandatory retirement contributions, health insurance for the children, and any pre-existing child support orders. The resulting net income produces a combined figure, and each parent pays their proportional share. A non-custodial parent earning 60% of combined net income with two children owes 60% of 35% of the combined figure. New Hampshire last updated its guidelines percentages in 2021, and the next quadrennial review is scheduled for 2027 under RSA § 458-C:6.
Claiming Children on Taxes After a New Hampshire Divorce
Only one parent may claim a child as a dependent in any given tax year, and by default that parent is the custodial parent—defined by the IRS as the parent with whom the child lived for the greater number of nights during the year. This rule is set by 26 U.S.C. § 152(e) and survives regardless of state court custody labels. In New Hampshire, where parenting plans often describe "parenting time" rather than "custody," the IRS counts actual overnights: 183 or more overnights with one parent triggers custodial parent status for federal tax purposes.
The custodial parent may release the dependency exemption and the Child Tax Credit (worth up to $2,000 per qualifying child under 17 in 2026 under the Tax Cuts and Jobs Act, which remains in effect through December 31, 2025, and is scheduled to revert to $1,000 in 2026 unless Congress extends it). Release requires a signed IRS Form 8332, attached to the non-custodial parent's return each year the release applies. New Hampshire family courts have authority under RSA § 458:17-a to order a parent to sign Form 8332, and judges frequently alternate the exemption annually or assign it based on income tax brackets. Failure to comply with a court-ordered Form 8332 signing can result in contempt proceedings at the Merrimack County Superior Court or any of the other nine NH Circuit Court family divisions.
Filing Fees and Divorce Costs in New Hampshire
The filing fee for a divorce petition in New Hampshire is $250 as of April 2026, payable to the New Hampshire Circuit Court – Family Division. Verify with your local clerk, as fees are periodically adjusted by the New Hampshire Supreme Court under RSA § 490:26-a. Additional costs include a $25 certificate fee if you need certified copies of the final decree, a $125 fee for a Parenting Plan filing in cases involving minor children, and optional service-of-process costs ranging from $25 (sheriff service) to $75 (certified mail with return receipt).
New Hampshire offers a fee waiver under In Forma Pauperis procedures for indigent parties whose household income falls below 125% of the federal poverty line ($19,562 for a single person in 2026). Applicants file Form NHJB-2099-F with supporting income documentation. Total out-of-pocket costs for an uncontested New Hampshire divorce with children typically run $400 to $800 including filing fees, parenting class fees ($25 to $60), and notary costs. Contested divorces involving custody disputes, business valuations, or substantial assets routinely exceed $15,000 per party when attorneys charge the NH average of $275 to $425 per hour.
Residency and Grounds for Divorce in New Hampshire
To file for divorce in New Hampshire, at least one spouse must have been domiciled in the state for one year prior to filing, OR the plaintiff must have been domiciled in New Hampshire when the cause of action arose AND the defendant must be personally served within the state, OR both parties must have been domiciled in New Hampshire when the cause arose. This three-part residency rule is codified at N.H. Rev. Stat. Ann. § 458:5 and has remained substantively unchanged since 1842. Military service members stationed in New Hampshire count their time in the state toward the one-year requirement.
New Hampshire recognizes no-fault divorce under the ground of "irreconcilable differences which have caused the irremediable breakdown of the marriage" per RSA § 458:7-a. The state also preserves eight fault grounds under RSA § 458:7: impotence, adultery, extreme cruelty, conviction of a crime with imprisonment exceeding one year, treatment seriously injuring health or endangering reason, absence for two years without being heard from, habitual drunkenness for two years, and joining a religious sect that professes marriage unlawful. Fault grounds rarely affect the tax treatment of child support but can influence alimony and property division outcomes under RSA § 458:16-a.
Alimony vs Child Support: Tax Treatment Differences in 2026
For New Hampshire divorce decrees executed on or after January 1, 2019, alimony and child support receive identical federal tax treatment: both are non-deductible to the payer and non-taxable to the recipient. The Tax Cuts and Jobs Act of 2017 eliminated the alimony deduction at 26 U.S.C. § 215 and excluded alimony from gross income at 26 U.S.C. § 71 for all post-2018 decrees. For divorces finalized before January 1, 2019, the old rules grandfather in: alimony remains deductible by the payer and taxable to the recipient, but child support has always been tax-free on both sides.
This creates a planning distinction that matters in New Hampshire divorces. A 2015 decree requiring $2,000 per month in alimony and $1,500 per month in child support generates $24,000 of deductible alimony for the payer and $18,000 of tax-free child support. The same dollar amounts in a 2026 decree produce zero deduction for the payer. New Hampshire attorneys negotiating post-2018 settlements must account for the loss of the alimony deduction when calculating net after-tax support, often resulting in lower gross alimony figures than would have been ordered under pre-TCJA law. The state's alimony statute, RSA § 458:19, was amended in 2018 to establish formula-based term alimony of up to 50% of the length of the marriage.
Child Support Enforcement in New Hampshire
The New Hampshire Division of Child Support Services (DCSS), operating under the Department of Health and Human Services pursuant to RSA § 161-B, collects and distributes child support payments for approximately 38,000 active cases statewide as of fiscal year 2025. DCSS uses income withholding orders on employers under RSA § 458-B, tax refund intercepts through the Federal Tax Refund Offset Program, license suspensions for arrears exceeding $1,500, and credit bureau reporting for arrears exceeding 60 days. Enforcement actions do not convert child support into taxable income—intercepted federal tax refunds applied to child support arrears remain non-taxable to the recipient.
A non-custodial parent in New Hampshire who falls more than $5,000 behind in child support faces potential federal felony charges under the Deadbeat Parents Punishment Act of 1998 (18 U.S.C. § 228). State contempt proceedings in NH Circuit Court can result in up to 30 days of civil confinement per violation under RSA § 458:51. DCSS charges no fee for public assistance cases and a $25 annual federal fee (increased from $35 in October 2024 per the Bipartisan Budget Act of 2018) for non-assistance cases that have received at least $550 in support during the year. Report all enforcement-related questions to DCSS at 1-800-852-3345 or visit dhhs.nh.gov/dcss.
Modifying Child Support Orders in New Hampshire
New Hampshire courts will modify child support orders under RSA § 458-C:7 when the petitioning parent shows either (1) a substantial change in circumstances, or (2) that three years have passed since the last order and recalculation would produce a 20% or greater difference in the support amount. Substantial change includes job loss, significant income increase, new children from subsequent relationships, disability, or a parenting time change exceeding 25% of overnights. Modifications become effective on the date the modification petition was served, not retroactively to the triggering event.
A successfully modified order does not create taxable income for the recipient or a deduction for the payer—the tax-free treatment continues unchanged. If a New Hampshire parent's monthly child support increases from $800 to $1,200 following a modification, the additional $400 per month flows tax-free just like the original $800. Retroactive arrears collected through modification proceedings are similarly tax-free. Filing a modification petition costs $75 in the NH Circuit Court Family Division as of April 2026 (verify with your local clerk), plus $25 service fees if the other parent requires personal service by the Merrimack County Sheriff or another county sheriff's office.
Frequently Asked Questions
FAQs
Do I pay New Hampshire state tax on child support?
No. New Hampshire has no broad-based personal income tax on wages or salary, and child support is exempt from federal income tax under 26 U.S.C. § 61. The state's former Interest and Dividends Tax was fully repealed effective January 1, 2025, and never applied to child support anyway. You report $0 on both federal and state returns.
Can I deduct child support payments on my federal tax return?
No. Child support payments are never deductible on federal tax returns under 26 U.S.C. § 215 and IRS Publication 504. This has been the rule since 1984 and applies regardless of how much you pay. A New Hampshire parent paying $18,000 annually in child support receives zero deduction and pays taxes on the full amount before transferring the funds.
Who claims the children on taxes after a New Hampshire divorce?
The custodial parent (the one with whom the child lived more than 183 nights in the tax year) claims the children by default under 26 U.S.C. § 152(e). The non-custodial parent may claim children only if the custodial parent signs IRS Form 8332 releasing the exemption. New Hampshire judges frequently order alternating years in the final divorce decree.
Does the Child Tax Credit follow child support payments?
No. The Child Tax Credit (up to $2,000 per qualifying child in 2026) follows the parent claiming the child as a dependent, not the parent paying child support. A father paying $20,000 per year in New Hampshire child support receives zero Child Tax Credit unless he is also the custodial parent or holds a signed Form 8332 from the mother.
How is child support calculated in New Hampshire in 2026?
New Hampshire applies the Income Shares Model under RSA § 458-C:3, using 25% of combined net income for one child, 35% for two, 42% for three, 45% for four, and 50% for five or more. The guideline ceiling is $325,000 combined annual net income, above which courts apply discretion. Each parent contributes their proportional share of combined net income.
Is child support income counted when applying for food stamps or Medicaid in New Hampshire?
Yes, but differently than taxable income. The New Hampshire Department of Health and Human Services counts child support received as income for SNAP (food stamps) and Medicaid eligibility under RSA § 167, even though it is not federally taxable. The first $50 per month is disregarded for SNAP calculations (pass-through payment). Report all child support to DHHS within 10 days of receiving it.
What happens to child support if I remarry in New Hampshire?
Remarriage does not automatically change child support obligations in New Hampshire. The new spouse's income is not counted in recalculating support under RSA § 458-C:2, though it may be considered indirectly if it frees up the obligor parent's income for support. Child support remains tax-free whether the paying or receiving parent remarries. A new marriage does not terminate a child support order.
Can child support arrears be discharged in bankruptcy?
No. Child support arrears are non-dischargeable in both Chapter 7 and Chapter 13 bankruptcy under 11 U.S.C. § 523(a)(5) and 11 U.S.C. § 1328(a)(2). A New Hampshire parent who owes $25,000 in back child support cannot eliminate that debt in bankruptcy, and the arrears continue accruing 7% annual interest under RSA § 336:1. The arrears remain tax-free to the recipient when eventually collected.
How long does child support last in New Hampshire?
Child support continues in New Hampshire until the child turns 18 or graduates from high school, whichever occurs later, but not beyond age 18 years and 8 months for high school completion, per RSA § 461-A:14. Unlike some states, New Hampshire courts cannot order college support absent voluntary agreement. Support for a disabled adult child may continue indefinitely under RSA § 461-A:14(VI).
Where do I file for divorce and child support in New Hampshire?
File in the NH Circuit Court – Family Division in the county where either spouse lives. New Hampshire operates 10 family division locations including Manchester, Nashua, Concord, Portsmouth, Laconia, Keene, Lebanon, Berlin, Dover, and Rochester. The filing fee is $250 as of April 2026 (verify with your local clerk). Self-represented litigants can access forms at courts.nh.gov/our-courts/circuit-court/family-division.