Key difference
Two WA regimes can apply
The Building and Construction Industry (Security of Payment) Act 2021 generally applies to contracts entered into on or after 1 August 2022. Earlier contracts remain under the former-provisions scheme. Under the 2021 Act a claim must be written, state the claimed amount, describe the items and quantities of work or related supply, and say it is made under that Act. Home-building matters may be excluded or require the prescribed homeowner notice depending on the parties, project and contract value.