How to Write a Letter of Demand for Breach of Contract in Australia

# How to Write a Letter of Demand for Breach of Contract in Australia

When someone fails to perform their obligations under a contract, Australian law expects you to give them a clear opportunity to fix the breach before you escalate to tribunal or court. That opportunity is a letter of demand.

What Is a Letter of Demand for Breach of Contract?

A letter of demand is a formal written notice sent to a party who has breached a contract. It sets out:

• The contract that exists between you
• The specific obligation that has been breached
• The loss or damage you have suffered
• What you require them to do to remedy the breach
• A deadline for compliance (typically 7–14 days)
• The consequences if they fail to comply

The letter gives the breaching party a final chance to perform or negotiate. It also creates a formal record that you attempted to resolve the matter before taking legal action — which tribunals and courts expect to see.

Common Types of Contract Breaches

You can use a letter of demand for any breach of contract. The most common situations include:

• Unpaid invoices — a client refuses to pay for goods or services you delivered
• Non-delivery of goods — you paid for something, but the supplier has not delivered
• Defective work — a contractor performed work that does not meet the agreed standard
• Breach of service agreement — a party has failed to provide services as specified
• Breach of confidentiality or non-compete — someone has violated a restrictive covenant
• Failure to meet deadlines — time-critical obligations have been missed
• Repudiation — one party has indicated they will not perform the contract at all

What to Include in Your Letter of Demand

Your Details and the Recipient’s Details

Start with your full name or business name, address, phone number, and email. Then include the recipient’s full legal name and address. If the contract is with a company, use the registered business name and the address on the ASIC register.

Date

Always date the letter. This starts the clock on your deadline and creates a timeline if the matter proceeds to tribunal or court.

Reference to the Contract

Identify the contract clearly. If it is a written contract, state:

• The date it was signed
• The title or description of the agreement
• The parties to the contract

If the contract is verbal, describe when and how it was formed, and summarise the key terms that were agreed. Verbal contracts are enforceable under Australian law — you just need to prove the agreement existed.

Description of the Breach

Set out exactly what the other party was required to do under the contract, and how they have failed to do it. Be specific. Use dates, amounts, and reference the relevant clause in the written contract if applicable.

For example:

“Under clause 4.2 of the Service Agreement dated 15 March 2024, you were required to deliver the completed website design files by 30 April 2024. As at the date of this letter, you have not delivered any files.”

Loss or Damage Suffered

Explain the consequences of the breach. This might be:

• A specific amount of money owed
• Additional costs you have incurred as a result of the breach
• Loss of business or opportunity
• Damage to property or reputation

Quantify the loss where possible. If you are claiming a debt, state the exact amount. If you are claiming damages, provide a reasonable calculation.

What You Require

State clearly what the recipient must do to remedy the breach. This could be:

• Pay the outstanding amount in full
• Complete the work to the standard required
• Deliver the goods or services
• Cease the conduct that breaches a restrictive covenant
• Agree to a settlement or variation of the contract

Deadline for Compliance

Give a reasonable deadline — typically 7 to 14 days from the date of the letter. The deadline should be realistic given the nature of the breach, but firm enough to show you are serious.

For example:

“You must pay the amount of $4,850 in full within 14 days of the date of this letter.”

Consequences of Non-Compliance

State what will happen if they do not comply. Common consequences include:

• Commencing proceedings in the relevant state or territory tribunal (VCAT, NCAT, QCAT, etc.)
• Filing a claim in the Magistrates Court or District Court
• Engaging a debt collection agency
• Reporting the debt to a credit reporting agency
• Terminating the contract and claiming damages

Do not make threats you cannot or will not follow through on. Keep the tone professional and factual.

Your Signature

Sign the letter and include your printed name. If you are acting on behalf of a company, include your position.

Formatting and Delivery

A letter of demand should be:

• Typed and professionally formatted
• Sent by registered post or email (or both)
• Kept as a PDF for your records

If you send by email, use a read receipt if possible. If you send by post, use Australia Post’s registered or express post service so you have proof of delivery.

Do not send the letter by SMS, social media message, or any informal channel.

What Happens After You Send It?

Once the letter is delivered, one of four things typically happens:

1. They pay or comply — the matter is resolved
2. They dispute the claim — they may send a response denying the breach or the amount owed
3. They negotiate — they may offer a partial payment, payment plan, or alternative resolution
4. They ignore it — no response at all

If they dispute the claim or ignore the letter, you can proceed to the next step — usually filing an application in your state or territory’s civil and administrative tribunal, or in some cases, the Magistrates Court.

The letter of demand becomes evidence that you attempted to resolve the matter before commencing proceedings. Tribunals and courts look favourably on parties who have tried to settle disputes without litigation.

Common Mistakes to Avoid

Being vague about the breach — do not say “you breached the contract.” Say exactly what they were supposed to do and what they failed to do.

Overstating your claim — only claim what you can prove. Inflating the amount or making up losses will damage your credibility if the matter goes to tribunal.

Making it personal — stick to the facts. Do not insult the recipient, make accusations of dishonesty, or let emotion take over.

Giving an unrealistic deadline — 24 hours is not reasonable unless the contract itself specifies it. Seven to fourteen days is standard.

Failing to keep evidence — keep all contracts, invoices, emails, messages, and records of the work or goods in question. You will need them if the matter escalates.

When to Get a Lawyer

You should consider engaging a qualified Australian lawyer if:

• The contract is complex or high-value (generally over $25,000)
• The breach involves multiple parties or cross-claims
• The other party is legally represented
• You are unsure whether a valid contract exists
• The matter involves fraud, misrepresentation, or criminal conduct

For straightforward contract breaches — unpaid invoices, non-delivery, defective work — a letter of demand is often all you need to get the matter resolved.

How ClaimDone Generates Your Letter of Demand

ClaimDone’s AI-generated letter of demand service generates a professionally formatted, legally precise letter of demand for breach of contract — and sends it automatically.

You complete a short intake form about the contract, the breach, and what you are owed. Our Proprietary AI Engine reads your evidence, identifies the applicable law, and drafts the letter citing the relevant legal principles. The letter is then delivered to the other party by email and registered post.

Flat fee of $79. No subscription. Done in 60 minutes.

If the recipient does not comply, ClaimDone can also prepare your tribunal application or settlement deed to finalise the matter.

Final Checklist

Before you send your letter of demand for breach of contract, confirm:

• [ ] You have a valid contract (written or verbal)
• [ ] The other party has clearly breached a specific obligation
• [ ] You have quantified your loss or the amount owed
• [ ] You have given a reasonable deadline
• [ ] You have stated the consequences of non-compliance
• [ ] The letter is signed, dated, and professionally formatted
• [ ] You have kept copies of all evidence and the letter itself

A well-drafted letter of demand is often the fastest and cheapest way to resolve a contract dispute. Most recipients will pay or negotiate rather than face tribunal proceedings. If you need a letter drafted and sent today, see how ClaimDone works.

Frequently Asked Questions

Can I send a letter of demand for a verbal contract?

Yes. Verbal contracts are enforceable under Australian law. In your letter, describe when and how the agreement was formed, and summarise the key terms that were agreed. Keep any evidence of the agreement — text messages, emails, witness statements, or records of payment.

How long should I give the other party to respond?

Seven to fourteen days is standard. The deadline should be reasonable given the nature of the breach. For urgent matters or time-sensitive contracts, a shorter deadline may be justified. For complex disputes, you may give longer.

What if they ignore my letter of demand?

If they do not respond or comply within the deadline, your next step is usually to file an application in your state or territory’s civil tribunal (VCAT, NCAT, QCAT, etc.) or the Magistrates Court. The letter of demand becomes evidence that you attempted to resolve the matter before commencing proceedings.

Do I need to reference specific laws in the letter?

It is not required, but it can strengthen your letter. For consumer contracts, you may reference the Australian Consumer Law. For general contract breaches, common law principles apply. A well-drafted letter will cite the applicable legal framework without overstating your position.

Can I claim interest on the debt in my letter of demand?

Yes, if the contract allows for it or if you are claiming under the Australian Consumer Law. State the interest rate and how it is calculated. If the contract is silent on interest, you may still be able to claim interest once you commence tribunal or court proceedings.