Chasing an Unpaid Invoice in Australia: Your Legal Options

You did the work. You issued the invoice. The 7-day terms turned into 30, then 60, then 90. The customer stopped replying to emails. Statements bounce off them. The “I will pay next week” text from a fortnight ago has aged badly. Meanwhile your supplier accounts, BAS and payroll do not pause for anyone.

Chasing an unpaid invoice in Australia is not a single action — it is a sequence. Knowing where in the sequence you are, and what the next legitimate step looks like, is the difference between a debt that gets paid and a debt that quietly becomes a write-off.

Why these debts get stuck

Most overdue invoices in Australia stay overdue because the creditor keeps doing the same thing — polite reminders, friendly phone calls, more reminders — long past the point at which the debtor has worked out there is no consequence. Debtors triage. They pay the supplier who is about to suspend service, the lender who reports to a credit bureau, and the creditor who has just sent a formal legal letter. Polite chasers sit at the bottom of the pile.

The legal step that actually moves the needle

A formal Letter of Demand is the standard first legal step in Australian debt recovery. It is not a court filing — it is a written notice from you (or your representative) that sets out the debt, the legal basis, the amount due including interest and recovery costs where applicable, and a clear deadline before formal legal action begins. In practical terms it does three things at once:

• Signals seriousness. The debtor now knows reminders have ended and proceedings have started.
• Creates a paper trail. Courts and tribunals expect to see a Letter of Demand before you file. Skipping it can attract adverse cost orders.
• Triggers the 21-day window. For corporate debtors over the threshold, an unanswered demand opens the door to a Statutory Demand under the Corporations Act 2001.

What Claim Done delivers

• Debtor and debt particulars laid out with precision (invoice numbers, dates, amounts, terms breached)
• Citation of the contractual basis and any statutory interest entitlement
• A clear 14-day deadline and explicit escalation path
• Sent as a PDF — not a chaser email — for a flat $49
• Drafted from your answers, for you to review before it is sent

Common pushbacks and why they fail

• “Cash flow is tight.” Cash flow is not a defence to a debt; if the debtor is genuinely insolvent, that strengthens your case for fast escalation, not delay.
• “There is a dispute.” Genuine disputes must be raised promptly and with detail. Late or vague disputes rarely defeat a properly drafted demand.
• “We are negotiating.” Negotiation can run alongside a demand; it does not require you to pause the legal clock.
• “We never received the invoice.” A Letter of Demand attaches the invoice and re-serves it formally, removing this excuse permanently.

Next escalation if the demand is ignored

If the debtor does not pay or respond inside the 14-day window, a Final Demand ($49) is the next short step — it removes any final ambiguity and warns the debtor that proceedings are about to be filed. Beyond that, the path forks by debtor type and amount: small claims tribunal applications (VCAT, QCAT and equivalents) for most consumer and small-business debts up to the relevant cap, Magistrates Court for mid-size debts, and Statutory Demands under section 459E for corporate debts of $4,000 or more. In New South Wales a business’s unpaid invoice goes to the Local Court of New South Wales, not NCAT: the Small Claims Division up to $20,000 and the General Division over $20,000 up to $100,000. Each of these steps is faster and cheaper than most creditors expect — and each becomes considerably more powerful when it is preceded by a properly drafted Letter of Demand.