Rule 510.Overpayments
Ch. XVII: Delaware Child Support Formula · Last amended 2019 · Current through June 1, 2026 · Last verified September 9, 2026
Full Text of Rule 510
Amendment History
Delaware prints each rule’s amendment history as a single “Credits” line naming every order that adopted or amended it. It is reproduced verbatim below.
[Adopted effective February 1, 2019.]
Plain-English Summary
Support is collected by attachment, adjusted administratively and paid over years. Sometimes a parent ends up ahead. This rule says what happens to the money.
While support continues. Where a net account credit arises in favour of the obligated parent, the arrears balance is set to zero and current support is deferred for as long as it takes to exhaust the credit — and that deferral can itself be modified if the underlying obligation changes.
Where full deferral would be a hardship on the recipient's household and enough time remains on the obligation, the court may instead defer part of it, between 20% and 50%, until the credit runs out. The overpaying parent is repaid either way; the children's household is not asked to absorb the whole correction at once.
When time is short. If not enough of the obligation remains to exhaust the credit, the court defers as usual and estimates both the likely termination date and the credit likely to be left at that point. For the estimate the court may presume a child emancipates for support purposes on June 1 following their 18th birthday — or on the birthday itself for a child born in June, July or August — adjusted to the child's actual circumstances.
That presumption is quietly sensible: it tracks the end of a school year rather than a calendar date.
When the children move. Where the credit arises because placement changed to the obligated parent, it becomes a past due support balance in that parent's favour, enforceable as such. Where placement changed to a third party, the credit likewise becomes a past due balance for the obligated parent — but it may be reduced to the extent the previous recipient passed the money on to the new custodian or spent it for the children.
That reduction is fair to everyone. A parent who forwarded the support to whoever was raising the child, or spent it on the child, has not been unjustly enriched and is not made to repay it.
When it is over. Where the credit arises on the emancipation or death of the final child of the order, it is established as a past due support obligation in favour of the obligated parent and enforced as such — including where it had been estimated in advance, with the actual amount varying according to the circumstances.
Frequently Asked Questions
What happens if I overpay child support in Delaware?
The arrears balance is set to zero and current support is deferred for the period necessary to exhaust the credit.
What if stopping support would leave the other household short?
Where full deferral would be a hardship on the recipient's household and enough time remains on the obligation, the court may instead partially defer the obligation by 20% to 50% until the credit is exhausted.
When does a child emancipate for Delaware support purposes?
For the purpose of estimating a termination date, the court may presume emancipation on June 1 following the child's 18th birthday, or on the birthday itself for a child born in June, July or August, adjusted to the child's actual circumstances.
What happens to a credit when the order ends?
Where the credit arises on the emancipation or death of the final child of the order, it is established as a past due support obligation in favour of the obligated parent and is enforceable as such.