Letter of Demand Australia: How to Write One That Gets Results
Someone owes you money. You've asked nicely. You've followed up. Nothing. The next step — before you spend thousands on lawyers or tribunals — is a formal letter of demand. Done right, it often resolves the situation without going any further.
This guide explains exactly what a letter of demand is, when to use one, what it must include to be effective under Australian law, and how to send it correctly.
This article is general information, not legal advice. For high-value or complex disputes, consider independent legal advice.
What is a Letter of Demand?
A letter of demand is a formal written notice that demands payment of a debt or requires a person or business to take a specific action — and warns of legal consequences if they don't comply within a set deadline.
It is not a court document. It is a pre-litigation step — a serious, documented warning that puts the recipient on notice that you mean business. Many disputes are resolved at this stage because the recipient realises you are prepared to escalate.
When Should You Send One?
A letter of demand is appropriate when:
- A client hasn't paid an invoice after repeated follow-ups
- A builder, tradie or contractor has left work unfinished or defective
- A landlord has failed to return your bond without valid reason
- A tenant has caused damage to your property
- Someone has borrowed money and is refusing to repay it
- A business has sold you a defective product or failed to deliver a service
- An employer owes you unpaid wages, entitlements, or final pay
Letters of Demand and Australian Consumer Law
If your demand relates to a faulty product or a service that wasn't delivered as promised, the Australian Consumer Law (ACL) strengthens your position significantly. Under the ACL, businesses must meet automatic consumer guarantees — goods must be of acceptable quality and fit for purpose, and services must be provided with due care and skill. Referencing the specific consumer guarantee that's been breached (not just "I'm unhappy") makes a letter of demand far harder to ignore, because it points to a legal obligation the business already has, not just your opinion.
Most Australian courts and tribunals expect you to have made a genuine attempt to resolve the dispute before filing a claim. A formal letter of demand is evidence that you did exactly that — and it strengthens your position significantly if you do end up in a hearing.
What to Include in a Letter of Demand
An effective letter of demand must be clear, factual, and professional. It should include:
Your Details
- Your full name and address
- Date of the letter
- Contact details for the recipient to respond to
Recipient Details
- Full name of the person or business you are demanding from
- Their address
Subject Line
- A clear subject line: e.g. "Letter of Demand — Unpaid Invoice #1042 — $2,400"
Background Facts
- What happened — clearly and factually, with dates
- The amount owed or the action required
- Any previous attempts to resolve the issue
The Demand
- Exactly what you are demanding — a specific dollar amount, or a specific action
- The deadline — typically 14 days from the date of the letter
- How payment should be made (bank account details)
Consequences of Non-Compliance
- What you will do if they don't comply — lodge a claim with a tribunal or court
- Reference the relevant body: VCAT (VIC), NCAT (NSW), QCAT (QLD), Magistrates Court (WA, SA, TAS), ACAT (ACT), NTCAT (NT)
Key principle: Keep it factual, not emotional. A letter of demand should read like a professional legal notice — not a vent. Accusations, aggressive language, or emotional statements weaken your position. Stick to dates, amounts, and facts.
How Long Should You Give Them to Respond?
The standard deadline in Australia is 14 days from the date of the letter. This is long enough to be reasonable, short enough to maintain pressure. Some situations may warrant a shorter deadline (7 days for urgent matters) or a longer one (21–28 days for complex commercial disputes).
Be realistic — if you give 14 days but the dispute obviously needs more time to resolve, courts and tribunals will consider whether your deadline was reasonable.
How to Send a Letter of Demand
Send it in a way that creates a record of delivery:
- Email — fast, with a delivery and read receipt if possible. Follow up with a hard copy.
- Registered post — provides proof of postage and delivery via Australia Post tracking
- Both — the safest approach for significant claims, as it removes any "I never received it" defence
Keep a copy of everything — the letter, the email thread, delivery confirmation, and any response you receive.
What Happens After You Send It?
Three possible outcomes:
They pay or comply
Best case. The letter worked. Keep the documentation for your records in case the issue resurfaces.
They respond and dispute
They may offer a reduced amount, dispute the facts, or propose an alternative resolution. Consider whether the offer is reasonable. If not, you can proceed to a tribunal or court claim with your demand letter as evidence.
They ignore it
This is actually useful — it demonstrates to a tribunal that you tried to resolve the matter before escalating. Proceed to lodge a formal claim with the appropriate body in your state.
If the deadline passes with no response, don't send a second letter of demand. Act on your stated consequence. Sending multiple letters without following through signals that you're not serious, and gives the other party reason to keep ignoring you.
Does a Letter of Demand Need to Be Written by a Lawyer?
No. There is no legal requirement for a lawyer to write your letter of demand. A well-written letter from the claimant themselves is perfectly valid and taken seriously. Many lawyers charge $200–$500 to draft a basic letter of demand — costs that are rarely recoverable in small claims proceedings.
What matters is that the letter is professional, factual, specific, and clearly states the deadline and consequences.
Create Your Letter of Demand in Minutes
SignedSorted drafts a personalised, formal letter of demand based on your specific situation. You describe what happened, who owes what, and the details — our AI produces a properly structured demand letter ready to sign and send. From $3.99.
Create Your Letter of Demand
Describe your situation and get a formal letter ready to send — in minutes. From $3.99. See the full breakdown on our Letter of Demand page.
Start Your Letter →Sources: ACCC — How to Complain, NSW Civil and Administrative Tribunal.
Frequently Asked Questions
Is a letter of demand legally binding?
The letter itself is not a court order — the recipient is not legally compelled to comply. However, it is a legally significant document. It establishes that you made a formal demand, which is often a prerequisite for filing a tribunal or court claim, and it is admissible as evidence.
Can I send a letter of demand to a business?
Yes. Letters of demand are commonly sent to businesses — including sole traders, companies, and trusts. Address it to the business's registered address and include the correct legal entity name (e.g., "XYZ Pty Ltd" not just "XYZ").
What if I don't know their address?
For registered companies, you can look up their registered address on the ASIC register at asic.gov.au. For individuals, send to their last known address and also by email if you have it.
Can they sue me for sending a letter of demand?
No — provided your letter is factual and not defamatory. Making a good-faith demand for a legitimate debt is a protected legal activity. Stick to facts and avoid making false statements.
Do I need to send one before going to VCAT/NCAT/QCAT?
It is not always formally required, but it is strongly recommended. Tribunals look favourably on claimants who have made a genuine attempt to resolve the dispute first. Some tribunals explicitly ask whether you have sent a letter of demand before lodging your application.
How much does a letter of demand cost in Australia?
A lawyer-drafted letter of demand typically costs $200–$500, which is rarely recoverable even if you win a small claim. Writing it yourself costs nothing but time — or you can get a properly structured, Australian-law-specific letter from SignedSorted from $3.99, a fraction of the lawyer rate.
How long does a letter of demand take to resolve a dispute?
Most respond within the deadline you set (commonly 14 days). Including drafting and sending, most disputes that are going to resolve at this stage do so within 2–4 weeks of the letter being sent. If there's no response or resolution by your deadline, the next step is lodging a claim with the relevant tribunal or court.