Official online portal for managing NJ child support cases at njchildsupport.gov. Parents can make payments, view case status, check payment history, and access account information 24 hours a day, 7 days a week. Call the support line at 1-877-655-4371 Monday through Friday 8am to 7pm. Use the portal to set up automatic payments, download payment records for court, and update contact information. Registration with a case number is required.
Child support in the United States is administered state-by-state under the Title IV-D federal program, with every state required to operate a child support enforcement agency. These agencies establish paternity, locate non-custodial parents, calculate support obligations, and enforce payments through wage garnishment, tax refund intercepts, license suspension, and other civil enforcement tools. Support amounts are calculated using state-specific guidelines, most based on an income shares or percentage-of-income formula. Fathers paying support can request modifications when their income drops substantially or when circumstances change (job loss, additional children, disability). Fathers owed support can open a case with their state agency free of charge. This directory includes each state's child support agency, online calculators, local enforcement offices, and modification resources.
Child Support in New Jersey
New Jersey Superior Court Family Part handles family law in each of its 15 vicinages. The Office of Child Support Services operates under DHS. Newark, Jersey City, Paterson, Elizabeth, and Trenton are the largest cities. Legal Services of New Jersey coordinates six regional LSC-funded programs covering all 21 counties.
Essex County Probation - Child Support — Essex County Probation Division monitoring and enforcing child support payments through the Newark office at 212 Washington St. Handles paym
Bergen County Probation - Child Support — Bergen County Probation Division in Hackensack handles child support payment monitoring, enforcement actions, paternity establishment, and c
Camden County Probation - Child Support — Camden County Probation Division handles child support payment monitoring, enforcement actions, and compliance for Camden County residents.
Mercer County Probation - Child Support — Mercer County Probation Division in Trenton manages child support enforcement, payment monitoring, and compliance for the state capital regi
NJ Child Support QuickCalc — Official NJ child support guidelines calculator for estimating payment amounts based on the income shares model per NJ Court Rule Appendix I
Child Support — Common Questions
How do I open a child support case?
Apply through your state's Child Support Services agency — usually online, in person, or by mail. Applications are free, and the agency handles paternity establishment, order creation, and enforcement on your behalf. You don't need the other parent's cooperation to open a case.
Can I modify my child support order?
Yes, if there's a substantial change in circumstances (income drop of 15–25% or more, job loss, disability, a new child, change in custody time). File a Motion to Modify with the court that issued the original order. Most states don't modify retroactively — file as soon as circumstances change.
What happens if I can't pay?
Contact the child support agency immediately — don't ignore the debt. Options include payment plans, hardship modifications, and in some states, work programs that substitute community service for payment. Accumulated arrears don't disappear but can sometimes be reduced through debt compromise programs.
How is the amount calculated?
Each state uses guidelines — most follow Income Shares (combining both parents' income) or Percentage of Income (only non-custodial parent's income). Online calculators on every state agency site estimate your obligation. The actual order also considers health insurance, childcare, and other add-ons.