Insight
Letter of Demand in Australia
13 September 2026
In short
A letter of demand is a formal written request that someone pay a debt or perform an obligation by a stated deadline, before you start proceedings. It is not a court document, but it creates a paper trail a court will read — so it must state the debt accurately, identify the legal basis, set a reasonable deadline, and say what happens next.
What a letter of demand actually does
Three things. It gives the other side a last clear chance to pay, which is often all a solvent-but-slow debtor needs. It fixes your version of the facts in writing at a point when the other side has to respond to it. And it demonstrates to a court or tribunal that you tried to resolve the matter before spending public resources on it — relevant to costs.
It is not a prerequisite to suing in most commercial matters. It is, however, the cheapest step in any recovery process and the one most often done badly.
What to include
- Correct legal identity of the debtor. The company name and ACN, not the trading name. Demanding from the wrong entity gives them a free reason to ignore you and can waste a limitation period.
- The basis of the debt. The contract, purchase order, quote acceptance or invoice series that created the obligation, with dates.
- A precise amount. Principal, plus any contractual interest or recovery costs the agreement actually allows. Do not invent a penalty.
- What has already happened. Invoices issued, reminders sent, part payments received, promises made.
- A deadline. A specific date, not "immediately".
- How to pay. Bank details and a reference. Friction here costs you money.
- The consequence. That you will commence recovery proceedings and seek interest and costs if payment is not received by the date.
What weakens a letter of demand
- "Without prejudice". Marking a demand this way can make it inadmissible. Leave it off unless you are genuinely making a settlement offer.
- Threats you cannot carry out. Referring to police, criminal charges, or winding up a company when the debt is genuinely disputed can breach ss 50 and 12DJ-style prohibitions on undue harassment and coercion, and hands the other side a counter-complaint.
- Ignoring the contract's own process. Many commercial agreements require notice, negotiation or mediation before proceedings. Skipping it can be a breach on your part.
- Emotion. Every line you write will be read back to you. Keep it flat and factual.
- An amount you cannot substantiate. If the figure moves later, everything in the letter looks unreliable.
Deadlines that matter
The limitation period for a simple contract debt is six years in most Australian jurisdictions (three years in the Northern Territory), running from when the cause of action arose. A part payment or written acknowledgement can restart it. Where the debtor is a company and the debt is undisputed and above the statutory minimum, a creditor's statutory demand under s 459E of the Corporations Act 2001 (Cth) triggers a strict 21-day period, after which the company is presumed insolvent. That is a serious step and the wrong tool for a genuinely disputed debt — a debtor can apply to set the demand aside and seek costs.
Construction and security of payment
If the debt is for construction work or related goods and services, do not default to a letter of demand. The security of payment regimes in each state give you a faster statutory route via payment claims and adjudication, with tight time limits that a general letter of demand does not preserve. See construction debt recovery in Australia.
When to escalate to a lawyer
- The debt is disputed on grounds that touch the substance of the contract.
- The debtor is showing signs of insolvency and you need to move before other creditors.
- There is a personal guarantee, retention of title clause or PPSR registration you may be able to rely on.
- The amount is commercially significant relative to your business.
- The relationship matters and you need pressure without burning it.
How we handle it
We review the contract and invoice trail, confirm the correct debtor entity and any security you hold, and send a demand on our letterhead with a defined deadline — for a fixed fee agreed before we start. If it does not resolve, we set out the realistic recovery options and cost of each before anything is filed. See commercial dispute lawyers Sydney.
Frequently asked questions
Do I need a lawyer to send a letter of demand?
No. A business can send its own letter of demand and many debts are paid at that point. A letter on a law firm's letterhead usually lands harder because it signals that proceedings are the next step, and it avoids wording that could be used against you later.
How long should I give them to pay?
Seven to 14 days is the usual commercial window for a clear, undisputed debt. Give longer where the amount is large, the invoice history is complicated, or a contract sets its own notice period — a contractual dispute-resolution clause overrides your preferred timeframe.
How long do I have to recover a debt in Australia?
In most states and territories the limitation period for a contract debt is six years from the date the cause of action arose (three years in the Northern Territory). Part payment or a written acknowledgement of the debt can restart that clock.
Can a letter of demand get me into trouble?
Yes, if it overstates your position. Threatening criminal action, insolvency steps you have no basis for, or misrepresenting the legal consequences can breach the Australian Consumer Law's prohibition on undue harassment and coercion, and can amount to misleading conduct. Never mark it 'without prejudice' either — that can prevent you relying on it in court.
What happens if they ignore it?
Your options depend on the amount and the debtor. Small claims go to the relevant state tribunal or local court; company debts over the statutory minimum can support a creditor's statutory demand under s 459E of the Corporations Act, which carries a 21-day deadline and serious consequences for the company if unmet.
Two ways to start
Get a fixed fee before any work starts.
Answer a few short questions, attach your documents if you have them, and a senior lawyer replies with the scope and the price.
Know what you need? Request a fixed-fee quote and upload your documents. Not sure of scope? Book a short call with a senior lawyer instead.
Recover what you're owed
We'll review the contract and invoice trail and send the demand for a fee agreed upfront.
Know what you need? Request a fixed-fee quote and upload your documents. Not sure of scope? Book a short call with a senior lawyer instead.