Letter of Demand for Breach of Contract: What to Include and What Not to Say

When the other party fails to deliver, pay, or perform as agreed, a letter of demand for breach of contract is often your first step toward recovery. Done correctly, it can resolve the dispute without tribunal proceedings. Done poorly, it undermines your case.

This is not a vague complaint. It identifies the broken promise, quantifies the damage, and gives the breaching party one last chance to fix it.

What makes a breach of contract demand different

A breach of contract demand is more precise than a general letter of demand. You are pointing to a specific clause in a signed agreement and showing how the other party failed to meet their obligation.

Your letter must:

• Reference the contract by name and date—”Service Agreement dated 12 March 2024″
• Cite the exact clause breached—”Clause 7.2 required payment within 14 days of invoice”
• Show the breach occurred—”Invoice #1234 was issued on 15 April 2024 and remains unpaid”
• Quantify your loss—”The outstanding amount is $8,500 plus interest”
• Set a deadline—”Payment must be received by 5pm on 20 May 2024″

The other party cannot claim they did not know what was expected—they signed it.

Essential elements to include

Contract identification

State the full name of the contract, the date it was signed, and who the parties are. If the contract was verbal, describe the agreement in detail including when and where it was made, what was agreed, and any witnesses present.

Example: “This letter concerns the Graphic Design Services Agreement dated 3 February 2024 between CleanSlate Marketing Pty Ltd (Client) and yourself (Designer).”

The breached term

Quote the exact clause. Do not paraphrase. If the contract is poorly drafted or the term is ambiguous, describe what was agreed and how a reasonable person would interpret it.

Example: “Clause 4.1 states: ‘The Designer will deliver final artwork in print-ready format by 28 February 2024.’ You did not deliver the artwork by that date.”

Evidence of the breach

Attach proof:

• Invoices showing non-payment
• Emails showing missed deadlines
• Photos of defective work
• Delivery records showing non-delivery
• Correspondence where the breach was acknowledged

If you say the work was not done, show the email where you requested it and received no response.

Your loss (damages)

Breach of contract damages typically fall into several categories:

Direct loss—the amount you are out of pocket because of the breach. If they did not pay, it is the invoice amount. If they did not deliver, it is the cost of getting someone else to do it.

Consequential loss—losses that flowed from the breach but were not the immediate cost. For example, if a supplier failed to deliver stock and you lost a major client as a result, that lost profit may be recoverable if it was foreseeable.

Interest—you are entitled to claim interest on unpaid amounts. The rate depends on the contract terms or, if silent, the relevant state penalty interest rate (typically 8-10% per annum).

Costs—some contracts allow you to recover legal costs or debt recovery fees. If not, you generally cannot claim them in a letter of demand, though you can mention them as a consequence of non-payment.

Be specific. “$8,500 for unpaid invoices #1234 and #1235, plus $340 interest calculated at 10% per annum from the due date” is clear. “You owe me money” is not.

Deadline and next steps

Give them a reasonable time to respond—typically 7 to 14 days depending on the amount and urgency. State what will happen if they do not comply.

Example: “If payment is not received by 5pm on 20 May 2024, I will file an application in the NSW Civil and Administrative Tribunal without further notice. You will then be liable for the tribunal filing fee and any additional costs.”

Do not threaten criminal charges (breach of contract is a civil matter). Do not threaten to “ruin their reputation” or report them to authorities unless there is a genuine regulatory breach.

What not to say

Do not make it personal

Calling them dishonest, incompetent, or a liar weakens your position. “You failed to deliver the goods as required by Clause 3.2” is stronger than “You are a scammer who cannot be trusted.”

Do not exaggerate your loss

If you claim $20,000 in damages but can only prove $5,000, you lose credibility. Tribunals expect you to mitigate your loss—if you could have reduced the damage by acting reasonably, you should have.

Do not cite cases or statutes incorrectly

Unless you are quoting a widely known principle, do not invent case law or misquote legislation. The contract itself is your primary evidence.

Do not threaten legal action you cannot follow through on

If the debt is $800, do not threaten Supreme Court proceedings. Tribunals handle most contract disputes under $25,000 (varies by state). Be realistic about your next step.

Do not waive your rights accidentally

Phrases like “this is my final offer” or “I will accept $X in full settlement” can be interpreted as you agreeing to less than you are owed. If you want full payment, say so clearly.

How Australian contract law applies

Australian contract law is based on common law principles. A contract is enforceable if there was:

• Offer and acceptance—one party proposed terms, the other agreed
• Consideration—something of value was exchanged (money, services, goods)
• Intention to create legal relations—both parties meant it to be binding
• Certainty—the terms are clear enough to enforce

A breach occurs when one party fails to perform their obligation without lawful excuse.

Limitation periods also matter. In most Australian states, you have six years from the date of breach to take action on a written contract. For verbal contracts or certain statutory claims, the period may be shorter.

When to escalate beyond a letter

If the other party ignores your demand, your options typically include:

• Tribunal application—for disputes under $25,000 (varies by state), tribunals are faster and cheaper than court
• Mediation—some contracts require mediation before litigation
• Court proceedings—for higher-value claims or where tribunal jurisdiction does not apply
• Debt recovery—if it is a simple debt, you may instruct a debt collector or issue a statutory demand (if the debtor is a company owing $4,000+)

Do not let a demand letter sit unanswered for months. If they do not respond within your deadline, act.

How ClaimDone prepares your breach of contract demand

ClaimDone’s Proprietary AI Engine reads your contract, identifies the breached term, calculates your loss, and drafts a professionally formatted letter. You upload your contract and evidence, answer a few questions, and the letter is generated and sent automatically—usually within 60 minutes.

What you get:

• Contract clause analysis identifying the specific breach
• Damages calculation based on your uploaded invoices or evidence
• Professionally formatted letter on ClaimDone letterhead
• Automatic delivery via registered post and email
• Proof of service for tribunal use if needed

What ClaimDone does not do:

• Provide legal advice on whether your contract is enforceable
• Represent you in tribunal or court
• Negotiate on your behalf after the letter is sent

For straightforward breaches—unpaid invoices, missed deadlines, defective work—ClaimDone gets the letter out fast at a fixed $79 fee. For complex disputes involving ambiguous terms, significant consequential loss, or disputed facts, consider getting a solicitor to review the contract first.

Final checklist before sending

Before you send your breach of contract demand, confirm:

• [ ] The contract is in writing or can be proven through correspondence
• [ ] The term breached is clearly identified
• [ ] Your loss is quantified with supporting evidence
• [ ] The deadline is reasonable (7-14 days)
• [ ] Your contact details and payment instructions are included
• [ ] You have kept a copy of the letter and all attachments
• [ ] You can prove delivery (registered post or email with read receipt)

A well-drafted letter of demand for breach of contract often resolves the dispute without further action. If it does not, it becomes the foundation of your tribunal application. Get your breach of contract demand drafted and sent today through ClaimDone’s AI-generated letter of demand service—fixed fee, fast turnaround, Australia-wide.

Frequently Asked Questions

Can I send a letter of demand if the contract was verbal?

Yes, but you will need to prove the agreement existed. Use emails, text messages, invoices, or witness statements showing what was agreed. Verbal contracts are enforceable in Australia if you can demonstrate offer, acceptance, and consideration.

How much interest can I claim on an unpaid contract debt?

If the contract specifies an interest rate, use that. If not, you can typically claim the penalty interest rate set by your state’s legislation—usually 8-10% per annum. Calculate from the due date to the date of your letter.

What if the other party disputes the breach?

If they claim they did not breach the contract or that the term is ambiguous, you may need to escalate to a tribunal or court. Keep all correspondence—their response may help clarify the dispute or show they acknowledge the breach.

Do I need a lawyer to write a breach of contract demand?

Not for straightforward breaches like unpaid invoices or missed deadlines. ClaimDone can draft the letter based on your contract and evidence. For complex disputes involving significant damages or unclear terms, consider getting legal advice first.

What happens if they ignore my letter of demand?

If they do not respond by your deadline, your next step is usually a tribunal application (for claims under $25,000 in most states) or court proceedings. The letter becomes evidence that you attempted to resolve the matter before escalating.