Back child support in New Jersey, also called child support arrears, becomes an automatic judgment under N.J. Rev. Stat. § 2A:17-56.23a and cannot be retroactively reduced or erased. New Jersey enforces past due child support with no statute of limitations on collection, wage garnishment up to 65% of disposable income, tax refund interception at $150 owed, passport denial at $2,500, and license suspension after six months of nonpayment. This guide explains how arrears accrue, how the New Jersey Child Support Program collects them, and what options exist if you owe or are owed money.
Key Facts: Back Child Support in New Jersey
| Factor | New Jersey Rule |
|---|---|
| Statute of limitations on enforcement | None — arrears collectible indefinitely |
| Retroactive modification | Prohibited except back to motion-filing date (§ 2A:17-56.23a) |
| Arrears become judgment | Automatically, by operation of law |
| Maximum wage garnishment | 65% of disposable income (12+ weeks behind) |
| Tax refund offset threshold | $150 in arrears |
| Passport denial threshold | $2,500 in arrears |
| License suspension trigger | 6 months of nonpayment |
| Motion to enforce filing fee | $50 (FM divorce case), $25 (standalone) |
| Support termination age | 19 (extendable to 23) |
All fees and thresholds are current as of June 2026. Verify with your local Family Division clerk or the New Jersey Child Support Program before filing.
What Is Back Child Support in New Jersey?
Back child support in New Jersey is the total of all court-ordered child support payments an obligor failed to make by their due date, accumulated into a balance called arrears. Under N.J. Rev. Stat. § 2A:17-56.23a, each missed installment converts into an enforceable money judgment automatically, with no separate court hearing required. The New Jersey Child Support Program tracks these balances through its NJKiDS computer system.
Arrears arise whenever a parent pays less than the ordered amount or stops paying entirely. Because New Jersey treats every unpaid installment as a judgment by operation of law, the debt attaches as a lien against the obligor's real and personal property. This means the property cannot be sold or transferred until the past due child support is satisfied. The balance survives even after the underlying support order ends — Probation maintains an open file solely to collect remaining arrears until the debt reaches zero.
Can Back Child Support Be Reduced or Forgiven in New Jersey?
No. New Jersey law prohibits retroactive modification of child support arrears under N.J. Rev. Stat. § 2A:17-56.23a. A court may only adjust support back to the date a modification motion was formally filed and mailed — never earlier. Past due amounts that accrued before that filing date are permanently owed. This rule is curative and applies to all orders entered before, on, or after the statute's effective date.
This anti-retroactivity provision means an obligor who loses a job, becomes disabled, or faces a reduced income cannot wait to address the change. If a parent stops paying for six months and then files to lower the obligation, the six months of arrears remain fully collectible. The only path to limit future arrears is to file a modification motion immediately when circumstances change, because the court can adjust the obligation only from the motion's filing date forward. Arrears already on the books are treated as a final judgment that no judge can wipe out.
How Long Can You Collect Back Child Support in New Jersey?
New Jersey imposes no statute of limitations on enforcing child support arrears. A custodial parent or the state can pursue collection of past due child support regardless of how many years have passed or whether the child has reached adulthood. Because each unpaid installment becomes a standing judgment under N.J. Rev. Stat. § 2A:17-56.23a, the obligation remains enforceable until paid in full.
Confusion sometimes arises because New Jersey does have a five-year limit, but that limit applies to paternity actions — not to enforcing an existing support order. A paternity action must commence within five years after the child's 18th birthday. Once a support order exists and arrears accumulate, no clock runs against collection. Even when a child support case formally closes, the outstanding arrears are reduced to judgment, the judgment remains open, and the custodial parent may be entitled to post-judgment interest on the unpaid balance. The debt does not expire, and the obligor cannot outlast it.
How Does New Jersey Enforce Back Child Support?
New Jersey enforces back child support through income withholding, tax refund interception, liens, license suspension, passport denial, and bank levies, coordinated by the Office of Child Support Services and the county Probation Division. Income withholding (wage garnishment) is the primary tool under N.J. Rev. Stat. § 2A:17-56.8, and the withheld amount includes both current support and an extra sum applied toward liquidating arrears.
The full enforcement toolkit is broad. Wage garnishment can reach 60% of disposable income, rising to 65% when the obligor is more than 12 weeks behind. State and federal tax refunds are intercepted once arrears reach $150 through the Tax Offset and SOIL programs. Real estate and personal property are subject to automatic liens. The state can levy bank accounts, intercept lottery and gambling winnings, report the debt to credit bureaus, and certify cases for passport denial. Each of these actions can proceed without a new hearing because the arrears already exist as a judgment by operation of law, giving New Jersey one of the most aggressive child support debt collection systems in the country.
Wage Garnishment for Child Support Arrears in New Jersey
Wage garnishment for child support arrears in New Jersey can reach up to 65% of an obligor's disposable income. Under federal Consumer Credit Protection Act limits adopted by New Jersey, up to 60% of disposable earnings may be withheld when an obligor owes arrears, increasing to 65% once the obligor is more than 12 weeks behind on payments. Disposable income is what remains after mandatory deductions such as taxes and insurance.
Income withholding under N.J. Rev. Stat. § 2A:17-56.8 applies not only to wages but also to unemployment compensation, trust funds, and other income sources. The withheld amount automatically combines the current monthly obligation plus an additional arrears payback amount. If the obligor supports other dependents, the lower 50%-55% federal tier may apply instead, but the 65% ceiling governs delinquent obligors with no other dependents. An obligor who believes the garnishment amount is miscalculated may request a court hearing to challenge it or negotiate a payment plan with the New Jersey Child Support Program.
License Suspension for Unpaid Child Support in New Jersey
New Jersey may suspend a driver's, professional, occupational, or recreational license after six months of unpaid child support under N.J. Rev. Stat. § 2A:17-56.43. The trigger is time-based — six months of nonpayment — rather than a fixed dollar amount. Before suspension, the court must find that all appropriate enforcement methods have been exhausted and that no equitable reason excuses the nonpayment.
The statute builds in protections. The court must first consider suspending a driver's license before a professional license, and the obligor must have received written notice from the Child Support Enforcement Agency with an opportunity to cure. A hardship exception lets an obligor avoid suspension by paying 25% of the past due amount within three working days of the hearing, establishing a payment schedule to clear the balance within one year, and staying current on the ongoing obligation. New Jersey revised its license-suspension rules in 2021 to allow more leeway for delinquent payers, aiming to keep parents working and paying rather than trapped by a suspended license that prevents employment.
Passport Denial and Tax Refund Offset in New Jersey
New Jersey certifies obligors who owe $2,500 or more in child support arrears for passport denial through the federal Office of Child Support Services, and intercepts tax refunds once arrears reach $150. The passport restriction blocks both new applications and renewals, and because New Jersey applies a zero-arrears policy, the full balance generally must be paid before the passport restriction is lifted.
Tax refund offset operates on a lower threshold. The state Set-Off of Individual Liability (SOIL) program captures New Jersey income tax refunds for arrears-only cases above a $25 selection threshold, while federal refund interception under 45 C.F.R. § 303.72 generally applies once arrears reach $150. The Division of Taxation must notify taxpayers whose refunds are subject to offset. These programs run automatically each year, meaning an obligor with arrears can lose an entire expected refund without any new court appearance. Combined, passport and tax-offset enforcement give New Jersey a strong lever to collect past due child support from obligors who have assets or anticipated refunds but resist paying.
Does Back Child Support Survive When the Child Turns 19?
Yes. A child support obligation in New Jersey terminates by operation of law when a child turns 19 under N.J. Rev. Stat. § 2A:17-56.67, but any arrears owed at that point remain fully collectible. When the current support obligation ends, the Probation Division closes the support account but keeps an open file solely to collect the remaining child support debt until it is paid.
The termination law, effective February 1, 2017, ends current support at age 19 unless an exception applies — such as full-time college enrollment, ongoing high school attendance, severe disability, or DCPP custody — in which case support may continue, but generally not beyond age 23. Probation sends at least two written termination notices: the first at least 180 days before the proposed termination date and the second at least 90 days prior. Critically, termination of current support does nothing to erase accumulated arrears. The past due child support converts to a judgment that survives the child's emancipation, and enforcement tools like garnishment, liens, and tax offset continue to operate against the obligor until the balance is satisfied.
How to Collect Back Child Support in New Jersey
A custodial parent collects back child support in New Jersey by opening or reactivating a case with the New Jersey Child Support Program or filing a post-judgment Motion to Enforce Litigant's Rights in the Family Division. The motion fee is approximately $50 in a divorce (FM) case or $25 for a standalone motion, and a fee waiver is available for those who cannot afford it. The motion asks the court to compel payment and impose enforcement remedies.
Most custodial parents work through the Probation Division, which handles enforcement administratively without requiring the parent to file individual motions. Probation can initiate wage garnishment, tax offset, license suspension, and judgment liens on the parent's behalf. For obligors who refuse to comply, the court can issue a bench warrant or hold the parent in violation of litigant's rights. New Jersey's enforcement is largely automated through the NJKiDS system, so once arrears are recorded as a judgment, the state pursues collection through layered remedies. A custodial parent owed money should document every missed payment, keep the support case open, and use the Post-Judgment Motion Kit (Form CN 10483) available from the New Jersey Courts when court intervention becomes necessary.