New Jersey Child Support Calculator 2026

Both parents’ weekly net incomes are added, the combined figure is found on the Appendix IX-F schedule for the number of children, and each parent owes a share of that basic amount in proportion to income. Work-related child care and the children’s health insurance cost join the amount before it is divided. Which worksheet applies, sole or shared parenting, depends on whether the other parent has at least 28 percent of overnights.

Yes, materially. A re-based Appendix IX-F schedule took effect September 1, 2025, the first new table since 2013. It was built from a 2024 study of family spending rather than an inflation bump, so awards moved by different amounts at different incomes. Any calculator or old worksheet using the 2013 table is out of date. Orders entered before the change are not automatically recalculated; a new schedule alone is not a change of circumstances.

Because the worksheets say so. Appendix IX-B builds every line in weekly dollars and defines income as net: gross minus income tax withholding (from the Appendix IX-H tables), mandatory union dues, mandatory retirement contributions, and support ordered for other cases. Monthly figures convert at monthly divided by 4.3. Orders come out of court expressed in dollars per week, which is why this page shows the weekly order first and a monthly equivalent only for comparison.

The substantial equivalent of two or more overnights a week over a year or more, which the guidelines translate to at least 28 percent of overnights, about 104 nights. Vacation-style extended visits do not count toward it, and the alternate-residence parent must show separate living accommodations for the child. Below the line, the instructions are blunt: stop and use the sole-parenting worksheet, where regular parenting time earns a credit of the basic amount times the overnight share times 0.37.

The guidelines run out at $3,600 a week, which is $187,200 a year of combined net income. The award at the $3,600 row becomes the minimum basic award, and the court adds a discretionary amount for the income above the table based on the statutory factors in N.J.S.A. 2A:34-23. The schedule itself instructs, in capitals, that it may not be extrapolated beyond $3,600. This tool shows the minimum and flags the supplement instead of inventing one.

A 14.6 percent increase. The schedule amounts are averages across all ages of childhood, and spending on teenagers runs above that average. So when an initial order is entered at a time when the youngest child is 12 or older, Appendix IX-A paragraph 17 adjusts the award upward by 14.6 percent, and that adjustment carries into later orders for the same child.

Yes. The state’s Office of Child Support Services runs the Child Support Guidelines QuickCalc at quickcalc.njchildsupport.gov, and the court instruments are the Appendix IX-C (sole parenting) and IX-D (shared parenting) worksheets. Use this page to understand each step and check the math; use the state’s tools to file.

Yes, and the order of operations is fixed: alimony is decided first. An award in the same case is deducted from the paying spouse’s income and added to the receiving spouse’s income before the child support guideline runs. New Jersey has no alimony formula, so that number comes from the 14 statutory factors, but once set it shifts the child support inputs.

The guidelines cover children through age 18 or the end of high school. When one of several children is emancipated, the order is recalculated under the guidelines rather than reduced proportionally, because the schedule is not a per-child price list: two children do not cost twice what one costs.