A judgment debt is the sum of money a party is ordered to pay under a court judgment or order (and, where registered or made an order of the court, a tribunal decision, arbitral award or foreign judgment). The expression is descriptive rather than a single statutory definition, though specific statutes and rules use it for particular purposes.Key features: it is enforceable unless stayed; interest may accrue at contractual or statutory rates; it can be assigned; and non‑payment may found insolvency proceedings. Typical enforcement includes seizure of goods, recovery from third parties, charges over property and earnings deductions.Jurisdictional use:- England & Wales: commonly used term; enforced by writ/warrant of control, third party debt orders, charging orders (and orders for sale), attachment of earnings, or insolvency.- Scotland: the equivalent is a debt constituted by decree or a “document of debt”, enforced by diligence (charge for payment, arrestment, earnings arrestment, attachment, inhibition).- Northern Ireland: enforced centrally through the Enforcement of Judgments Office using similar measures.- Ireland: enforced by sheriff execution, instalment/attachment of earnings orders, garnishee orders, and registration as a judgment mortgage.Limitation to enforce varies: generally six years in England & Wales and Northern Ireland, longer in Scotland (up to 20 years) and typically 12 years in Ireland.