Judgment Debt Interest and Time Limits in South Australia

Post-Judgment Interest: 6% Per Annum

Under section 35 of the Magistrates Court Act 1991 (SA) and rule 185.1(1) of the Uniform Civil Rules 2020 (SA), unpaid judgment debts accrue interest automatically at 6% per annum, calculated as simple interest. No application is needed — the interest runs from the date of judgment and continues until the debt is paid in full.

The daily accrual formula:

Daily interest = outstanding judgment debt excluding post-judgment interest × 0.06 ÷ 365

On a $5,000 judgment, that works out to about $0.82 per day — roughly $300 per year. On a $12,000 judgment (the minor civil ceiling), it is closer to $1.97 per day.

How Partial Payments Are Applied

Under rule 185.1(4) of the Uniform Civil Rules 2020 (SA), a payment is credited in this order:

1. The judgment debt excluding post-judgment interest, including recoverable enforcement costs
2. Accrued post-judgment interest, after that judgment debt has been discharged

This matters because a partial payment reduces the judgment debt before it reduces accrued interest. If a debtor pays $1,000 on a $5,000 judgment after 90 days, the judgment debt excluding interest falls to $4,000, while about $74 in accrued interest remains outstanding. From that point, interest accrues on the lower judgment debt balance.

Keeping a running ledger with these calculations is essential. When you apply for enforcement (particularly an Examination Summons after a payment-order default), the court expects you to produce an accurate Memorandum of Interest showing the current balance.

The 6-Year Window

Under rule 201.5 of the Uniform Civil Rules 2020 (SA), you must commence enforcement proceedings within 6 years of the date judgment was entered. If you miss this window, you do not lose the judgment, but you need court permission to proceed.

To get leave after 6 years, you file an Interlocutory Application supported by an Affidavit explaining the delay, confirming the debt remains unpaid, and demonstrating that enforcing now would not cause unfair prejudice to the debtor. Courts generally grant leave when the debt is genuine and unpaid, but the application adds cost and delay.

The practical lesson: do not sit on a judgment for years without at least starting enforcement. Even if the debtor is currently judgment-proof, filing an Investigation Summons within the first 6 years preserves your position without needing special permission.

The 15-Year Absolute Limit

Under section 34 of the Limitation of Actions Act 1936 (SA), you have 15 years from the date of judgment to enforce the debt. After 15 years, the right to enforce expires entirely — no court application can revive it.

The two clocks run simultaneously:

• Years 1–6: enforce freely, no court permission needed
• Years 7–15: enforcement requires leave of the court
• After year 15: the judgment is dead

How Long Does Enforcement Actually Take?

There is no blanket waiting period before you can start enforcement. If the court ordered immediate payment and the debtor has not paid, you can request enforcement applications the same day.

The real timeline depends on which tools you use:

• Investigation Notice (Form 140): at least 28 days for the debtor to respond, plus time to negotiate
• Investigation Summons: filing, Sheriff service (days to weeks), hearing date (weeks to months depending on court lists)
• Garnishee Order: ex parte application, interim order, adjourned hearing — roughly 4–8 weeks end to end
• Warrant of Sale: filing, Sheriff attendance and auction scheduling — 6–12 weeks or more
• Charging Order: registration on the title; recovery may wait for a later sale unless the Court makes an ancillary sale order

Some enforcement tools produce results in weeks (a bank garnishee that captures funds on service). Others can be long-term plays (a charging order that sits on the title until the property sells if the Court does not order a sale). The right approach depends on what the debtor has and how urgently you need the money.

Our SA Judgment Enforcement Guide includes a payment tracking ledger with pre-built interest calculations and a timeline planner for matching enforcement tools to your situation.

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