Can I break a contract if the other party fails to keep their promises?
You’ve paid a builder to renovate your kitchen, but the work keeps stalling. Or a supplier promised to deliver equipment by Friday, and it still hasn’t arrived weeks later. Can you walk away from the contract?
In Australia, the answer is: sometimes, but not for every broken promise. Whether you can end a contract depends on what the other party promised, how serious the failure is, and what the contract says.
A broken promise doesn’t always end the deal
A failure to do something required by a contract is called a breach. Some breaches are relatively minor. If a supplier delivers a day late and the delay causes little trouble, you may be entitled to compensation for any loss, but not necessarily to cancel the order.
You may be able to terminate—legally end—the contract if the breach is serious enough. This can include a breach of an essential term: a promise so important that you would not have entered the deal without it. For example, if you hired a venue specifically for your wedding date and it cannot provide the venue that day, the date is likely to be crucial.
You may also be able to terminate if the other party makes it clear they will not perform the contract, or will only perform it in a way that is substantially different from what was agreed. Lawyers call this repudiation. An example might be a contractor saying they will not finish the job unless you pay substantially more than the agreed price.
The labels are less important than the practical question: does the failure go to the heart of the deal, or can it reasonably be put right?
Check the contract before acting
Many contracts spell out what happens if someone misses a deadline or fails to perform. They may require you to give written notice and allow time to fix the problem before you can terminate. Follow those steps carefully, including any rules about where to send a notice.
Also check whether a deadline was genuinely critical. “Delivery by Friday” may have a different significance if the seller knew the goods were needed for a Saturday event than if Friday was simply an estimated date.
Don’t assume that stopping payment or hiring someone else immediately is risk-free. If you end a contract without a valid reason—or without following a required process—you could be the one in breach.
What if you’re a consumer?
The Australian Consumer Law gives consumers rights called consumer guarantees when they buy goods or services from a business. For example, goods must be of acceptable quality, and services must be provided with due care and skill.
If a problem is a major failure under those guarantees, you can generally choose a refund or replacement for goods, or cancel a service and seek a refund for the unused portion. For a non-major failure, the business will usually have an opportunity to fix it within a reasonable time. These rights can apply even if the contract or a “no refunds” sign says otherwise.
A sensible way forward
Before ending the contract:
1. Gather evidence. Keep the contract, emails, messages, invoices and photos, and note important dates.2. Explain the problem in writing. Say what was promised, what happened, and what you want done. Give a reasonable deadline to respond or fix it, where appropriate.3. Check your options. Depending on the circumstances, you might seek a repair, replacement, refund, compensation for proven loss, or termination.4. Get advice if the stakes are high. A lawyer or your state or territory consumer affairs agency can help you assess your position before you send a termination notice.
The key is not to treat every disappointment as a reason to walk away. Work out how serious the broken promise is, check the contract and any consumer rights, and take clear, documented steps before making your decision.
