There is a particular tension at the end of a tradie job. The work is mostly done. A few items aren’t quite right. The tradie sends the final invoice and expects to be paid. The customer reads the invoice and feels uneasy because the snag list is still open. Most people pay anyway, partly out of politeness and partly because they’re not sure if they’re allowed to hold money back. The answer is, sometimes yes, sometimes no. The law in Australia is more nuanced than either side usually realises.
Here’s when you can legally withhold a final payment to a tradie, when you can’t, and how to do it without ending up on the wrong end of a debt collector or a defamation action.
Withholding payment is not the same as refusing to pay
Withholding payment means temporarily holding back the money pending resolution of a specific issue. Refusing to pay means deciding the tradie has not earned the money and you do not intend to settle. The two have different legal consequences. Withholding usually involves writing to the tradie, identifying the unresolved issue, and stating that payment will be made once that issue is resolved. Refusing without explanation invites the tradie to take recovery action straight away. Most successful customer disputes are about withholding, not refusing.
You can usually withhold an amount that reasonably matches the unresolved work
The general principle is that you can hold back an amount that fairly reflects the cost of completing or fixing the unresolved work. Holding back $300 against an unfinished snag list is generally defensible. Holding back the entire $12,000 invoice because of a $300 snag list is not. Courts and tribunals routinely tell customers to pay the undisputed balance and only withhold an amount that genuinely matches the unresolved item. Trying to use a small problem as a reason to keep all of the money tends to undermine your case.
Set out what you are withholding and why, in writing
The single most important practical step is to put it in writing. A short message to the tradie identifying the specific items still unresolved, the reasonable estimated cost to put them right, the amount you are withholding, and the fact that the balance has been paid (or is about to be) clears the air. This message is also your evidence later. If the tradie escalates, the magistrate sees a customer who behaved reasonably, paid most of the bill, and held back a clearly identified amount against a clearly identified problem.
A faulty job is not automatic permission to keep the money
Even when the work is genuinely defective, you generally don’t get to skip payment entirely. Under the ACL, the tradie usually has the right to come back and remedy a minor fault. Withholding payment to force them to do so is fine. Refusing to allow the tradie to remedy and then refusing to pay is much weaker. The right sequence is: identify the problem, give the tradie a fair chance to fix it, hold back a proportionate amount until they do, and pay the rest.
Major faults change the maths
For a major fault under the ACL, the customer has the right to a refund, a rework, or compensation. In that situation, withholding a much larger portion of the final payment is more defensible because the failure is more serious. Even then, the safer approach is to pay the parts of the invoice that are not in dispute and identify clearly which parts are. Mixing the disputed amount into a single refusal often muddies the legal position when the dispute eventually escalates.
State-level retention rules for residential building
In some residential building contexts, statutory retention is a thing. The customer can hold back a defined percentage of the contract sum until practical completion or until the defect liability period ends. Each state’s residential building scheme handles retention differently, and a typical approach is something like 5 per cent of the contract value held until practical completion, then a smaller percentage held during the defects period. If your contract was set up under one of these schemes, retention is a planned process, not a dispute.
Don’t withhold to make a point
Some customers withhold money as a negotiating tool, not because the work is unresolved, but because they want a discount, an apology, or some non-contractual concession. This is a poor strategy. Tribunals and courts can usually tell when withholding is being used to apply leverage rather than to fairly reflect unresolved work. The customer ends up paying the full amount plus interest, sometimes plus the tradie’s costs. If you want a discount, ask for one. Don’t dress it up as a defective-work claim.
Watch for late-payment penalties hidden in the contract
Many tradie contracts include a late-payment clause: 1.5 per cent per month, sometimes higher. If you withhold payment for several months while a dispute drags on, the running interest can become significant. The clause is generally enforceable for ordinary unpaid amounts, although the position is more complex if you can demonstrate the underlying invoice was disputed for a legitimate reason. It is a reason to resolve disputes quickly rather than letting them drift.
What to do when the tradie sends a debt collector
If the tradie escalates by passing the debt to a collector while the dispute is still open, don’t ignore it. Respond in writing. Provide the message trail showing the dispute, the snag list, your offer to pay the undisputed amount, and your reasons for withholding the rest. Reasonable debt collectors will pause when they see a genuine dispute documented. The next step is usually conciliation through your state’s consumer or building regulator, not court. The cleaner your record, the smoother that step is.
Withholding a final payment is a legitimate tool when used properly, and a very expensive own-goal when used badly. Pay the undisputed balance. Identify the specific issue. Hold back an amount that fairly reflects the cost of completing or fixing the unresolved work. Put the whole thing in writing. Give the tradie a chance to remedy. The customer who follows that sequence almost always lands in a better legal position than the one who simply ignores the invoice.