What if my builder or trade invoices more than the agreed amount?

Check the claim against the contract, work completed, variations and allowance adjustments, and request an itemised explanation of any difference. Record your reasons for disputing it. Do not assume an ordinary invoice is outside security-of-payment legislation or that asking questions pauses a deadline. Coverage and response procedures vary by jurisdiction and contract. Obtain advice promptly about the amount due and any required payment schedule or dispute notice.

Official sources:

• NSW Changes to Security of Payment laws
• QBCC Request payment
• WA Security of Payment Act current version

General information only. Requirements vary by state or territory and change over time, so check the current rules for your location.