Unpaid Invoice South Australia — How to Recover Through Court
When an Invoice Goes Unpaid Long Enough
You have sent the invoice, followed up twice, maybe three times. The client is not disputing the work — they are just not paying. At some point, the only remaining option is the Magistrates Court.
In South Australia, if the unpaid amount is A$12,000 or less, you file in the Minor Civil Claims Division. The process is designed for exactly this kind of dispute — one party owes a defined amount and is refusing to pay.
Step 1: Verify Who You Are Suing
Before anything else, confirm the correct legal name of the debtor. If you invoiced "Adelaide Design Studio" but the business is actually operated by Jane Smith as a sole trader, you must sue "Jane Smith t/as Adelaide Design Studio." If it is a company, search the ASIC register for the exact name and ACN.
A judgment against a trading name alone is unenforceable. This is the most common mistake small business owners make when filing.
Step 2: Send the Pre-Action Demand
Under the Uniform Civil Rules 2020, you must give the debtor 21 calendar days to pay before you can file a claim. Send a letter of demand (free) or a Form P1 Final Notice through CourtSA (A$27.75 online; A$66.50 at the registry). The letter must include:
- The exact outstanding amount with an itemised breakdown
- The invoice number, date, and description of work
- A deadline (21 days from receipt)
- A clear statement that you will file a court claim if unpaid
- Copies of the original invoice and any contract
Send it by registered post and keep the tracking receipt. You will need to prove delivery.
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Step 3: File the Claim
If 21 days pass without payment, file through the CourtSA portal:
- Form 1 (Claim) — enter the total owed, including pre-judgment interest if applicable
- Form 1S (Statement of Claim) — a factual summary: when the work was done, what was invoiced, when payment was due, and what you are owed
- Form 31 (Multilingual Notice) — mandatory attachment
Pay the A$186 filing fee. This is recoverable if you win.
Step 4: Serve and Wait
Serve the sealed claim on the debtor by personal service, registered post, or the court sheriff (A$46). The debtor then has 28 calendar days to file a defence.
Many unpaid invoice cases end here. The debtor receives formal court papers and pays rather than face a judgment. If they ignore the 28-day window entirely, you apply for default judgment (Form 76B) — no trial needed.
Step 5: If They Defend
If the debtor files a defence disputing the amount or the quality of your work, the court schedules a conciliation conference. Both parties attend. The magistrate explores settlement — a reduced amount, a payment plan, an instalment agreement.
If conciliation fails, the matter goes to trial. Bring three copies of your evidence bundle: the contract or terms of trade, the invoice, proof of delivery, any correspondence showing acknowledgment of the debt, and your demand letter with tracking receipt.
Collecting After Judgment
Winning a judgment creates a legal debt but does not force the debtor to pay. If they still refuse, you can:
- Issue a Form 140 Investigation Notice requiring them to disclose their financial position within 28 days
- Apply for an Investigation Summons (Form 141) compelling them to attend court for an oral financial examination
- Seek enforcement orders — garnishee orders against bank accounts or wages, or a warrant of sale against personal property
For a complete debt recovery walkthrough with templates for every form and deadline, the SA Minor Civil Claim Guide covers the process from demand to enforcement.
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