Quick answer: In New Jersey, each child support installment is a judgment by operation of law on its due date. The IV-D agency may assess interest or late fees on support unpaid 30 days, collected only after the overdue support is paid. A license can be suspended at arrears of six months of support if other enforcement has failed.
This New Jersey child support arrears calculator adds up the unpaid installments, lets you test an interest or late-fee rate under N.J.S.A. 2A:17-56.20 and flags the withholding, license and passport thresholds. The rate defaults to zero because the agency sets it within federal limits.
New Jersey child support arrears and interest at a glance
| Rule | What New Jersey says |
|---|---|
| Judgment | Each installment is a judgment by operation of law on and after the due date; once docketed it is enforced like a civil money judgment (N.J.S.A. 2A:17-56.23a) |
| Interest or late fee | The IV-D agency may assess it on support unpaid 30 days after the due date, within federal HHS amounts; collectible only after the full overdue support is paid (2A:17-56.20) |
| Withholding | Starts at arrears of 14 days of support in alternative-arrangement cases; capped at the federal limit (2A:17-56.9) |
| Licenses | Arrears equal to at least six months of support, all appropriate enforcement exhausted, 30 days after notice (2A:17-56.41) |
| Settlement liens | A docketed judgment is a lien on net proceeds over $2,000 of settlements, awards and inheritances (2A:17-56.23b) |
| After termination | Arrears stay due and enforceable (2A:17-56.69) |
How do child support arrears work in New Jersey?
- Interest and fees. See interest and late fees on New Jersey child support.
- Collection. See what happens if you do not pay child support in New Jersey.
- Time limits and forgiveness. See whether New Jersey child support arrears expire or can be forgiven.
What does this arrears calculator check?
You enter the monthly support, the number of installments unpaid and an optional annual rate to test. The calculator adds a simple interest scenario that starts 30 days after each due date and flags the judgment, the 14-day withholding trigger, the six-month license trigger and the $2,500 passport line. It does not model partial payments. To change the amount going forward, see the New Jersey child support modification calculator, and for when the obligation stops, the New Jersey child support end date calculator.
Frequently asked questions
Does New Jersey charge interest on child support arrears?
The IV-D agency may assess interest or late payment fees on support unpaid 30 days after the due date, within amounts set by federal HHS, and collects them only after the full overdue support is paid.
Is a missed New Jersey child support payment a judgment?
Yes. Each installment is a judgment by operation of law on and after its due date.
Is New Jersey child support interest reduced when I make partial payments?
No. The fee or interest accrues as arrears accumulate and is not reduced on partial payment of arrears.
When can a New Jersey license be suspended for unpaid child support?
When arrears equal at least six months of support and all appropriate enforcement methods have been exhausted, after a 30-day notice.
When does New Jersey start income withholding for arrears?
In alternative-arrangement cases, when arrears equal 14 days of support.
Official sources
- N.J.S.A. 2A:17-56.23a: judgment by operation of law
- N.J.S.A. 2A:17-56.20: interest and late fees
- N.J.S.A. 2A:17-56.9: income withholding
- N.J.S.A. 2A:17-56.41: license notice
- N.J.S.A. 2A:17-56.43: license hearing
- N.J.S.A. 2A:17-56.23b: lien on settlements
- N.J.S.A. 2A:17-56.69: arrears after termination
- 15 U.S.C. 1673: restriction on garnishment
- 42 U.S.C. 652(k): denial of passports