Free construction-payment educationPrompt Payment and Construction Lien Act
Alberta.
Know your starting point.
A proper invoice is more than a request for payment. It needs the required information and a statement that it is intended to be a proper invoice.
Prompt-payment framework in force
Scope comes before calculation.
The PPCLA framework began on 29 August 2022. Transition rules applied to older contracts. Alberta government public works have a separate framework; the PPCLA calculator is not for those contracts.
The owner’s 14-day notice window and 28-day payment window are in section 32.2. Use the prescribed form and check the service requirements.
Read the governing statute28days · ordinary owner payment14days · owner notice window
Eligible proper invoices only. Holdback, notices and counting rules can affect the result.
Try the deadline calculatorExplore the fundamentals.
General guides with Alberta contextKeep the primary sources close.
Prompt Payment and Construction Lien Act, RSA 2000, c. P-26.4Prompt Payment and Adjudication Regulation (AR 23/2022)Prompt Payment and Construction Lien Forms Regulation (AR 51/2002): Forms 1 to 5Alberta prompt-payment implementation pageEdition: 4 October 2026. Regime status and linked instruments must be checked again before relying on a live deadline.