New Jersey Child Support — Calculator, Laws & Guide (2026)

Understanding New Jersey child support laws helps both custodial and non-custodial parents know their rights and obligations. This comprehensive New Jersey child support guide covers how payments are calculated, what income counts, when support can be modified, and how orders are enforced. Whether you are going through a divorce, seeking a modification, or dealing with non-payment, this guide explains New Jersey’s child support system in plain language.

Verified against New Jersey statutes and federal OCSE guidelines as of May 2026.

New Jersey Child Support Overview

New Jersey uses the income shares model for calculating child support. This model is based on the principle that children should receive the same proportion of parental income they would have received if the family were intact. Both parents’ incomes are combined, and the support obligation is divided proportionally.

Each parent’s gross income is determined (wages, salaries, tips, commissions, bonuses, self-employment income, pensions, investments, etc.). Mandatory deductions are subtracted (federal/state/local taxes, Social Security, Medicare, mandatory union dues, mandatory retirement contributions, prior child support orders for other dependents) to arrive at each parent’s net income. The two net incomes are combined and the basic child support amount is looked up from the Appendix IX-F table based on combined weekly net income and the number of children (1 through 6). Net child-care costs, health insurance costs for the child, predictable/recurring unreimbursed health-care costs above 250 per child per year, and court-approved extraordinary expenses are added. Each parent’s share equals their percentage of combined net income. The non-custodial parent’s share becomes the child support obligation. The schedule covers combined weekly net incomes from 180 to 3600. Below 180, the court sets support based on minimum basic standards. Above 3600, the court uses discretion. A Shared Parenting Worksheet (Appendix IX-D) is used when the child spends 28% or more overnights with the non-custodial parent. The self-support reserve ensures the obligor’s net income after support does not fall below 150% of the federal poverty guideline for one person. The Appendix IX-F schedule was most recently updated effective September 1, 2025, with further annual updating amendments to Appendices IX-A, IX-B, IX-E, and IX-H effective June 1, 2026.

How New Jersey Calculates Child Support

The New Jersey child support calculation considers multiple factors:

1. Determine each parent’s gross income — wages, salary, commissions, bonuses, self-employment income, investment income, and other sources.
2. Calculate combined parental income — add both parents’ adjusted gross incomes together.
3. Apply the guideline schedule — New Jersey’s guidelines provide a base support amount based on combined income and number of children.
4. Prorate between parents — each parent’s share is proportional to their percentage of the combined income.
5. Add healthcare and childcare costs — these are added to the base amount and divided proportionally.
6. Apply adjustments — parenting time credits, other child obligations, and special circumstances may adjust the final amount.

Online calculator: Use our child support estimator below to calculate your estimated obligation.

What Counts as Income in New Jersey

Gross income includes wages, salaries, tips, commissions, bonuses, overtime, self-employment income, pensions, Social Security benefits, unemployment benefits, workers’ compensation, disability benefits, investment income (interest, dividends, rental income), alimony received, and any other income sources. Mandatory deductions are subtracted to arrive at net income: federal income tax, NJ state income tax, city/local income tax, Social Security tax, Medicare tax, mandatory union dues, mandatory retirement contributions, and previously ordered child support for other dependents. The guidelines use net income after these deductions. Income documentation relies on the prior year’s federal/state tax returns, W-2s, and 1099s (before June 30) or current year documentation (after June 30). For self-employed parents, business receipts and expense statements are used.

Imputed income: YES — when a parent is found to be voluntarily underemployed or unemployed, the court may impute income based on earning capacity, education, work history, job skills, available employment opportunities, and prior earnings. The court examines whether the reduction in income was voluntary and without just cause. Imputed income is based on what the parent could reasonably earn given their qualifications and the job market.

Deviation factors: New Jersey courts may deviate from the guideline amount based on: (1) special needs of the child including physical or mental disabilities; (2) the ages of the children; (3) the custodial parent’s income and earning capacity; (4) the non-custodial parent’s income and earning capacity; (5) the standard of living the child would have enjoyed had the family remained intact; (6) the economic circumstances of each parent; (7) costs of private school or special education; (8) the financial obligations of both parties related to prior relationships; (9) the needs of other dependents; (10) debts and liabilities of either parent; (11) the relative assets and earning abilities of both parents; (12) the earning capacity of the child (if applicable); (13) income and assets of the child; (14) the responsibility of parents for the court costs of litigation; (15) any other relevant factors. Shared parenting time above 28% of overnights triggers use of the Shared Parenting Worksheet, which adjusts the calculation. Travel expenses for visitation may also be considered. When combined net income exceeds the 3600 per week maximum on the schedule, the court uses discretion and may deviate from guideline amounts.

Healthcare & Childcare in New Jersey Child Support

Health insurance: The cost of health insurance for the child is excluded from the Appendix IX-F base schedule and must be added separately on the worksheet. The parent’s weekly marginal cost of adding the child to an existing health insurance policy is used. If the marginal cost is unknown, the per capita cost of a family policy at the parent’s workplace is used. If both parents provide health insurance, both marginal costs are added. Health insurance costs are apportioned between parents in proportion to their share of combined net income. The first 250 per child per year in unreimbursed medical and dental expenses is already included in the base schedule and does not require a separate add-on. Unreimbursed health care expenses exceeding 250 per child per year that are predictable and recurring are added to the basic obligation as a separate line item and apportioned between parents.

Childcare costs: Only the net cost of work-related child care (after federal and NJ state child care tax credits) is added to the basic child support award. It is assumed the parent paying for child care will apply for and receive the federal child care tax credit. A separate Net Child Care Cost Worksheet (Appendix IX-E) is used to calculate the net cost after tax credits. The net child-care cost is then apportioned between parents proportional to their respective shares of combined net income.

When Does New Jersey Child Support End?

In New Jersey, child support generally ends when the child reaches 19 — child support terminates by operation of law when the child reaches age 19 under N.J.S.A. 2A:17-56.67 (effective February 1, 2017), without requiring a court order. Support may be extended beyond 19 up to the child’s 23rd birthday if the child is still in high school, enrolled full-time in college or vocational or graduate school, has a disability, or the parents agree. The obligation terminates by operation of law at age 23. Support may continue past 23 only if the child has a severe mental or physical incapacity causing financial dependence on a parent, in which case it continues until the court finds the incapacity is relieved or the child is no longer financially dependent.. However, support may continue or end earlier based on:

• The child graduates from high school (if still a minor)
• The child becomes emancipated (marriage, military service, self-supporting)
• The child has special needs requiring ongoing support
• College support: YES — New Jersey is one of the few states where courts can order a parent to contribute to a child’s college education. The court considers the factors set forth in Newburgh v. Arrigo, 88 N.J. 529 (1982), including: the parent’s ability to pay, the child’s financial resources and aptitude, the relationship between parent and child, the availability of financial aid (scholarships, grants, loans, work-study), the child’s commitment to education, the cost of the education, and any other relevant factors. College support may extend the child support obligation up to the child’s 23rd birthday. Either parent or the child may petition the court for a contribution to college expenses.

Modifying New Jersey Child Support

When to modify: A party must demonstrate changed circumstances under N.J.S.A. 2A:34-23. Recognized triggers include: increase or decrease in either parent’s income, job loss, disability, involuntary unemployment, change in the child’s needs, change in custody or parenting time arrangements, maturation of a child and resulting changes in needs, and other substantial changes in circumstances. New Jersey does not specify a fixed percentage or dollar threshold in statute — the standard is whether a material change in circumstances has occurred. For IV-D cases, support orders are eligible for review and possible modification every three years by the county board of social services, even without a showing of changed circumstances.

How to modify: File a motion or application with the Family Division of Superior Court in the county where the case is filed, using the Family Multi-Purpose Post Judgment Motion Packet (form CN 10483 for dissolution cases or CN 11487 for non-dissolution FD cases). The movant must establish a prima facie case for changed circumstances. The court may order discovery and, if material facts remain in dispute, conduct a plenary hearing. For IV-D cases, the county board of social services may also initiate a review and modification every three years. A current Case Information Statement must be filed with the motion. The NJ Probation Division and county boards of social services facilitate the process.

Either parent can request a modification. Changes are typically not retroactive to before the date of filing the modification request.

New Jersey Child Support Enforcement

New Jersey has multiple tools to enforce child support orders when a parent fails to pay:

• Wage garnishment (income withholding
• mandatory for all court-ordered child support); federal and state tax refund intercept; driver’s license suspension under N.J.S.A. 2A:17-56.41; professional
• occupational
• recreational
• and sporting license suspension
• revocation
• or denial; passport denial or revocation through federal certification under 42 U.S.C. 652(k); bank account levy; judgment lien recording against real property; credit bureau reporting of delinquencies; lottery winnings intercept; civil contempt under NJ Court Rule 1:10-3; criminal contempt under N.J.S.A. 2C:29-9 (disorderly persons offense
• up to 180 days jail and 1000 fine); bench warrants for failure to appear or comply.

Contact New Jersey has two key agencies. The Probation Child Support Enforcement Unit (PCSE), operating within the NJ Judiciary’s Probation Division, monitors, collects, distributes, and enforces child support. The NJ Department of Human Services, Division of Family Development, Office of Child Support Services (OCSS) is the designated federal Title IV-D agency that supervises the statewide child support program. The NJ Family Support Services Center can be reached at 1-877-655-4371. at https://www.njchildsupport.gov/ for enforcement assistance.

Additional New Jersey rules: (1) Self-support reserve: if the obligor’s net income after child support falls below 150% of the federal poverty guideline for one person, the court must review whether the award denies the obligor the means of self-support. No adjustment is made if the obligee’s income minus their share is also below 150% of the poverty guideline. (2) Shared parenting threshold: when the child spends 28% or more overnights with the non-custodial parent (equivalent to two or more overnights per week), the Shared Parenting Worksheet (Appendix IX-D) is used instead of the Sole Parenting Worksheet. (3) College contribution: New Jersey is one of a small number of states that can order parents to pay for a child’s college education under the Newburgh v. Arrigo factors. (4) Automatic termination at 19 without a court order (since February 2017), with hard cutoff at 23. (5) The Appendix IX-F schedule is updated annually by the NJ Supreme Court. The most recent schedule update took effect September 1, 2025, with further annual amendments to other appendices effective June 1, 2026. (6) Emancipation is distinct from age-based termination — an obligor may file a motion at any time to have a child declared emancipated if the child has moved beyond the sphere of parental influence and responsibility.

Official Sources & Resources

• New Jersey has two key agencies. The Probation Child Support Enforcement Unit (PCSE), operating within the NJ Judiciary’s Probation Division, monitors, collects, distributes, and enforces child support. The NJ Department of Human Services, Division of Family Development, Office of Child Support Services (OCSS) is the designated federal Title IV-D agency that supervises the statewide child support program. The NJ Family Support Services Center can be reached at 1-877-655-4371.: https://www.njchildsupport.gov/
• Federal OCSE: acf.hhs.gov/css
• Cornell LII — Child Support: law.cornell.edu
• New Jersey Guidelines Statute: NJ Court Rule 5:6A and Appendices IX-A through IX-H; N.J.S.A. 2A:34-23 (general child support obligation and factors); N.J.S.A. 2A:17-56.67 (termination at age 19); N.J.A.C. 10:110 (administrative regulations for the child support program)

Last verified May 2026. Contact us if you notice outdated information.

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Related Guides

• New Jersey Divorce Process Guide
• New Jersey Child Custody Guide
• New Jersey Alimony Guide
• All Child Support Guides