How to Write a Letter of Demand in NSW (Template + What Happens Next)

A letter of demand is often the most effective step you can take before formal legal action — and the least expensive. In NSW, a well-drafted letter of demand resolves a significant proportion of disputed and unpaid debts without any court involvement. This guide explains what to include, common mistakes that undermine a demand letter, and what your options are when the debtor doesn't respond.

What is a letter of demand?

A letter of demand is a formal written notice to a debtor requiring payment of an outstanding debt by a specific date. It establishes a clear record that you've formally notified the debtor of the amount owed, given them a reasonable opportunity to pay, and documented the consequences of non-payment. In NSW, this record is often a prerequisite for court proceedings — courts look unfavourably on creditors who escalate without first giving the debtor a reasonable opportunity to resolve the matter.

What a letter of demand must include

• Your full legal name (or your business name and ABN)
• The debtor's full legal name and last known address
• The exact amount owed, broken down by invoice or account
• The date each invoice was issued and the original due date
• A clear payment deadline (typically 7–14 days from the letter date)
• Your nominated payment method (bank account BSB/account number, or payment link)
• The consequences of non-payment — specifically, that you will take legal action to recover the debt
• Your contact details for the debtor to raise a dispute or arrange payment

Common mistakes that weaken a demand letter

The effectiveness of a letter of demand depends almost entirely on its credibility. A letter that looks like a template, lacks specific amounts, or makes threats you clearly can't or won't follow through on gives the debtor a reason to ignore it.

• Vague amounts — always specify each invoice individually, with dates
• No deadline — an open-ended demand is easy to ignore
• Unrealistic threats — threatening Supreme Court proceedings on a $2,000 debt looks hollow
• Wrong recipient — sending to the trading name rather than the legal entity means the letter may have no legal effect
• No attachment — always attach copies of the unpaid invoices
• Emotional language — a demand letter should be formal and factual, not angry

The right deadline: 7 days or 14 days?

The standard for NSW letters of demand is 7–14 days. Seven days creates urgency and is appropriate for accounts that are significantly overdue. Fourteen days is more common for commercial accounts or where the debtor may need time to process payment through their accounts payable. Courts in NSW generally require that the debtor had a reasonable opportunity to pay — 7 days is usually considered sufficient for straightforward debts.

What happens after a letter of demand?

In most cases, one of three things happens: the debtor pays, the debtor contacts you to negotiate a payment arrangement, or the debtor ignores the letter. If the debtor pays or negotiates — the letter has done its job. If they ignore it, your options are:

• NCAT (NSW Civil and Administrative Tribunal) for debts under $40,000 — Consumer and Commercial Division
• NSW Local Court for debts under $100,000
• NSW District Court for debts between $100,000 and $750,000
• NSW Supreme Court for debts over $750,000
• Engage a debt collection agency to pursue the account on your behalf

When to use a debt collection agency instead

A letter of demand from a debt collection agency often produces a better response than one from the creditor directly — the debtor knows there is a professional recovery process behind the letter. For accounts over 30 days overdue, placing the debt with a commission-only agency is often more cost-effective than managing the demand process yourself.