New Jersey runs child support under Rule 5:6A, Appendix IX of the court rules, using the Appendix IX-F schedule (effective September 1, 2025) applied to combined net weekly income, with sole-parenting and shared-parenting worksheets available. A newer Appendix IX-H gross-to-net conversion method, effective June 1, 2026, is also shown alongside the original for comparison at an exact 50/50 parenting split.
Key facts
| Model | Income shares — R. 5:6A Appendix IX |
|---|---|
| Schedule | Appendix IX-F (eff. 2025-09-01), combined net weekly income |
| Newer conversion method | Appendix IX-H (eff. 2026-06-01) |
| Worksheets | Sole and shared parenting |
Official source: https://www.njchildsupport.org/Home/Estimate-Your-Payments.aspx
Custody arrangements covered
- Sole parenting worksheet
- Shared parenting worksheet
- Both IX-F and IX-H methods shown at exact 50/50 parenting time for comparison
Frequently asked questions
What rule governs New Jersey child support?
Rule 5:6A, Appendix IX of the New Jersey court rules.
What is the difference between IX-F and IX-H in New Jersey?
Appendix IX-F (effective September 1, 2025) is the schedule on combined net weekly income; Appendix IX-H (effective June 1, 2026) is a newer gross-to-net conversion method — this calculator shows both at exact 50/50 parenting time for comparison.
Does New Jersey have separate worksheets for shared custody?
Yes — a sole-parenting worksheet and a shared-parenting worksheet.
Is the New Jersey figure a guaranteed order?
No — it’s a presumptive guideline amount, not a court order or legal advice.
Update history
- — Fixed an input-validation gap that let negative or invalid numbers slip through the form.
- — New Jersey went live under R. 5:6A Appendix IX, using the Appendix IX-F schedule (effective 2025-09-01) on combined net weekly income, sole and shared parenting worksheets, and the Appendix IX-H gross-to-net conversion (effective 2026-06-01).