A letter of demand is the formal step between chasing an unpaid invoice and starting legal action. Done well, it often gets you paid without going anywhere near a courtroom. This guide covers what an Australian letter of demand needs to include, when to send one, common mistakes to avoid, and a practical template you can adapt for your business.

What is a letter of demand?

A letter of demand is a formal written request for payment of an outstanding debt. It sets out what’s owed, why it’s owed, and gives the debtor a deadline to pay — along with a clear warning of what you’ll do next if they don’t.

It’s not a legal document in the sense that a court issues it. You can write one yourself or have a lawyer prepare it on your behalf. But don’t let its simplicity fool you — a well-drafted letter of demand is one of the most effective debt recovery tools available to Australian businesses.

In New South Wales, courts generally expect you to have attempted to resolve a dispute before commencing proceedings. A letter of demand is your evidence that you tried. Under the Civil Procedure Act 2005 (NSW), parties are encouraged to take genuine steps to resolve disputes before filing in court.

When to send a letter of demand

Timing matters. Send it too early and you risk damaging a relationship unnecessarily. Wait too long and you reduce your chances of recovery — or worse, you could run into limitation period issues.

Here’s the general escalation path most Australian businesses follow:

Invoice due date passes — Give 7 days’ grace, then follow up with a phone call or email.
First reminder — A polite written reminder, typically 7–14 days after the due date.
Second reminder — A firmer follow-up flagging potential consequences.
Letter of demand — The formal, final step before legal action. Give 7–14 days to respond.
Legal action — Statement of Claim (Local Court), statutory demand (s 459E Corporations Act 2001), or other enforcement steps.

A good rule of thumb: if two genuine attempts at collection have failed and 30+ days have passed since the original due date, it’s time to send the letter of demand.

When NOT to send a letter of demand

There are situations where a letter of demand is the wrong move — or at least requires careful thought before sending:

There’s a genuine dispute about the debt. If the debtor has a legitimate reason for non-payment (e.g., defective goods, incomplete work), a demand letter can escalate things unnecessarily. Try to resolve the dispute first.
An AVO is in place. NSW Legal Aid warns that sending a letter of demand to someone protected by an Apprehended Violence Order could constitute a breach. Get legal advice first.
The limitation period has expired. In NSW, you generally have six years to commence court proceedings for a debt (under the Limitation Act 1969). If you’re close to or past that window, talk to a lawyer before sending anything.
The debtor is already in administration or liquidation. If a company is in voluntary administration, sending a demand could breach the moratorium on creditor claims. Different rules apply — and you’ll need specialist advice.

What to include in your letter of demand

An effective letter of demand in Australia should include all of the following:

Element	What to write
Heading	“Letter of Demand” — clear and prominent at the top
Your details	Full name, business name, ABN/ACN, address
Debtor’s details	Full name and address (verify who owns the business — it may not be who you dealt with)
Date	The date the letter is sent
Amount owed	Exact dollar amount, including GST if applicable. Break it down if there are multiple invoices.
Basis for the debt	Brief description of the goods or services provided, referencing the contract or agreement
Invoice reference	Invoice number(s) and original due date(s)
Previous attempts	Mention earlier reminders sent (establishes your good faith)
Payment deadline	A specific date — typically 7 to 14 days from receipt. Use a calendar date, not just “14 days”.
Payment method	Bank details, BPAY reference, or payment link — make it easy to pay
Interest/costs	Only include late payment interest if your contract allows it
Consequences	State what action you’ll take if payment isn’t received — but only threaten what you’re genuinely prepared to do
Contact details	Phone and email for the debtor to respond or ask questions
Attachments	Copies of outstanding invoices, the contract, and any earlier correspondence

Letter of demand template (Australia)

Below is a practical template you can adapt. Replace the bracketed sections with your details.

LETTER OF DEMAND

[Date]

[Debtor’s full name]
[Debtor’s business name, if applicable]
[Debtor’s address]

Dear [Debtor’s name],

Re: Outstanding payment — $[amount] (including GST)

I refer to the [goods/services] provided by [your business name] (ABN [your ABN]) to [debtor’s business name] under [the agreement/contract/purchase order] dated [date].

Invoice [number], dated [date], in the amount of $[amount] was due for payment on [due date]. Despite our previous reminders dated [dates of reminders], the amount remains outstanding.

I formally demand that you pay the full amount of $[amount] within [14] days of the date of this letter — that is, by [specific calendar date].

Payment should be made by [direct deposit to BSB XXX-XXX, Account XXXXXXXX / other method].

[If applicable: In accordance with clause [X] of our agreement, interest of [X]% per annum will accrue on any outstanding amount from the original due date.]

If payment is not received by the above date, I intend to [commence legal proceedings to recover the debt / refer this matter to our solicitors for recovery / issue a statutory demand under section 459E of the Corporations Act 2001] without further notice. Legal costs and interest may be added to the amount claimed.

If you wish to discuss this matter or arrange a payment plan, please contact me at [phone] or [email] before the above deadline.

Yours sincerely,

[Your name]
[Your position]
[Your business name]
[Your ABN]
[Your address]
[Your phone]
[Your email]

Enclosures: Copy of invoice [number]; [contract/agreement]; previous correspondence dated [dates]

DIY vs lawyer-drafted: which gets better results?

You’re legally able to send a letter of demand yourself — and for straightforward, smaller debts, that’s often a perfectly reasonable approach. But there are situations where a lawyer’s letter delivers a stronger result.

	DIY letter	Lawyer’s letter
Cost	Free	Typically $200–$600 fixed fee
Impact	Good for small debts between known parties	Significantly more weight; signals you’re serious about legal action
Legal accuracy	Risk of errors that could weaken your position	Properly references legislation and contractual obligations
Follow-through	You need to manage next steps yourself	Lawyer can seamlessly escalate to court proceedings if needed
Cost recovery	May not recover costs from debtor	Legal costs can often be added to the debt if proceedings are commenced
Best for	Debts under $5,000; ongoing relationships	Debts over $5,000; unresponsive debtors; complex situations

At Hilton Bradley, we send letters of demand on a fixed-fee basis — and for debt recovery matters, we work on a no-win, no-fee basis with no commission. If the debtor pays after receiving our letter, our costs can often be recovered from them.

Five common mistakes that weaken a letter of demand

Threatening action you won’t take. If you say you’ll commence legal proceedings, you need to be prepared to follow through. Empty threats damage your credibility — and the debtor may call your bluff next time.
Getting the amount wrong. Double-check every figure, including GST. An inaccurate demand gives the debtor grounds to dispute it.
Being vague about the deadline. “14 days” is ambiguous — 14 days from when? Use a specific calendar date: “by 5:00 pm on Friday, 28 February 2026.”
Sending it to the wrong person. Check who actually owns the business or entity you’re pursuing. If you contracted with a company, the demand should go to the company (and potentially its directors), not just the person you dealt with day-to-day.
Skipping the earlier steps. Courts look at whether you made genuine attempts to resolve things before filing a claim. If you jump straight to a formal demand without earlier reminders, it can work against you.

What happens if the debtor doesn’t pay?

If the deadline passes and you haven’t received payment (or a reasonable proposal), you have several options depending on the size and nature of the debt:

Small claims (under $20,000): File in the NSW Local Court small claims division — relatively quick and informal.
General claims ($20,000–$100,000): File a Statement of Claim in the NSW Local Court general division.
Larger claims (over $100,000): File in the District Court or Supreme Court of NSW.
Company debts (over the statutory minimum): Issue a statutory demand under s 459E of the Corporations Act 2001. If the company doesn’t pay or apply to set it aside within 21 days, you can apply to wind it up. This is one of the most powerful tools in commercial debt recovery. Read our guide to statutory demands for more detail.

For a complete overview of the process from invoice to recovery, see our practical guide to business debt recovery in NSW.

Key takeaways

✓ A letter of demand is a formal, final request for payment before legal action — and courts expect you to send one
✓ Include all essential details: exact amount, basis for the debt, a specific payment deadline, and clear consequences
✓ Send it via registered post and keep copies of everything
✓ Only threaten action you’re genuinely prepared to follow through on
✓ For debts over $5,000 or unresponsive debtors, a lawyer-drafted letter on firm letterhead delivers stronger results
✓ If the debtor doesn’t respond, the next steps include court proceedings or a statutory demand

Need help recovering a debt?

Hilton Bradley’s debt recovery team works on a no-win, no-fee basis — no commission, and we recover our costs from the debtor, not from you.

Call 1300 240 319 for a free 15-minute consultation.

Sydney · Brisbane · Melbourne

Disclaimer: This article provides general information about letters of demand under Australian law as at February 2026. Your situation may involve specific factors that affect how the law applies to you. For advice tailored to your circumstances, contact Hilton Bradley on 1300 240 319.