Estimate New Jersey child support under N.J. Court Rules Appendix IX-F (rev. eff. Sep. 1, 2025) — Income Shares model, current caps and percentages, with a step-by-step worked example.
| Guideline model | Income Shares |
|---|---|
| Income basis | Net (after-tax) income |
| How it works | Both parents’ incomes are combined, a basic obligation is taken from the state’s official schedule, and each parent pays in proportion to their share of combined income. |
| Caps & limits | Appendix IX-F (revised Sept. 1, 2025; NJ updates annually) covers combined weekly net income $180-$3,600; the rule forbids extrapolation above $3,600/wk - the $3,600 amount is the minimum and the court adds a discretionary supplement |
| Statute / rule | N.J. Court Rules Appendix IX-F (rev. eff. Sep. 1, 2025) |
| Parameters verified | 2026-07 |
Result: $1,254 per month
New Jersey uses the income shares model under N.J. Court Rules Appendix IX-F (rev. eff. Sep. 1, 2025): both parents’ incomes are combined, a basic obligation is determined, and each parent is responsible for their proportional share. Both parents’ incomes are combined, a basic obligation is taken from the state’s official schedule, and each parent pays in proportion to their share of combined income.
New Jersey calculates support on net (after-tax) income as defined in N.J. Court Rules Appendix IX-F (rev. eff. Sep. 1, 2025). Appendix IX-F (revised Sept. 1, 2025; NJ updates annually) covers combined weekly net income $180-$3,600; the rule forbids extrapolation above $3,600/wk - the $3,600 amount is the minimum and the court adds a discretionary supplement.
Yes. The guideline amount under N.J. Court Rules Appendix IX-F (rev. eff. Sep. 1, 2025) is presumptive, not absolute - courts may deviate with written findings for factors like extraordinary medical or educational needs, other children supported, or very high income beyond the guideline range.
Apply through the New Jersey child support agency or the family court in your county. Existing orders can be modified on a substantial change in circumstances - typically a significant income change, job loss, or a change in custody. The official calculator/worksheet is linked on this page (www.njchildsupport.org).
Estimate only — not legal advice. Based on New Jersey guidelines (N.J. Court Rules Appendix IX-F (rev. eff. Sep. 1, 2025)), last verified 2026-07. Courts may deviate. For an official figure use the official New Jersey calculator.