Guide
Common Mistakes That Invalidate a Payment Claim
A defective payment claim can cost you the right to adjudicate. These are the mistakes we see most often, and how to avoid them.
The most common defects are unclear identification of the work claimed, serving before a reference date has arisen, and, for head contractors, missing the supporting statement. Most are avoidable with a careful check before serving.
A payment claim is a simple document in theory: identify the work, state the amount, serve it correctly. In practice, small mistakes are what respondents' lawyers look for first, because a defective claim can be resisted or can weaken your position in adjudication. These are the errors we see most often.
Not clearly identifying the work
A payment claim must identify the construction work, or related goods and services, that the claim relates to. Vague or generic descriptions, especially on claims covering multiple variations or trade packages, are one of the most common grounds respondents raise to challenge a claim's validity.
Serving before a reference date has arisen
You can only serve a payment claim once a reference date under the contract has arisen, typically monthly or as the contract specifies. Serving early, or serving a second claim for a reference date that's already been claimed, is a common and avoidable error.
Head contractors forgetting the supporting statement
As covered in our separate guide on the supporting statement requirement, a head contractor's payment claim served without one is generally invalid. This is a purely procedural mistake that's entirely avoidable with a checklist.
Serving on the wrong party or at the wrong address
Claims served on the wrong entity, an outdated registered address, or without following a contract's specific notice clause can be challenged on service grounds alone, regardless of how well-founded the underlying claim is.
How this applies across NSW
Sydney metro projects
On complex multi-package projects around the North Shore and the Eastern Suburbs, claims covering multiple variations across several trades are where identification-of-work defects most often arise. For our broader construction law services in these areas, see Archer Lawyers' North Shore and Eastern Suburbs pages.
Regional NSW
On smaller regional jobs around Wagga Wagga and Bowral, where contracts are shorter and less formal, reference date and service errors tend to be more common than identification defects. For our broader construction law services in these areas, see Archer Lawyers' Wagga Wagga and Bowral pages.
Frequently asked questions
Does a minor defect always invalidate a payment claim?
Not always. Courts have generally taken a practical view of minor errors that don't genuinely mislead the respondent, but this is fact-specific and not something to rely on without advice.
Can I fix and re-serve a defective claim?
Sometimes, depending on timing and whether a further reference date has arisen. This is worth assessing quickly rather than assuming you can simply resend.
What's the single most common mistake you see?
Vague identification of the work on claims covering multiple variations, followed closely by head contractors missing the supporting statement.
Should I get every payment claim checked before serving?
For routine, well-understood monthly claims it's often unnecessary. For claims involving variations, disputes, or a head contractor's supporting statement, a quick check is genuinely worthwhile.
What should I do if my claim has already been challenged as defective?
Get advice quickly. Whether the defect is fatal, and what your options are, depends heavily on the specific facts and timing.
If you'd like a payment claim checked before it goes out, or need to respond to a claim that's already been challenged, contact our team for a free assessment.