Free construction-payment educationTrust should be
checkable.
The original sources, with their scope and limits.
See how a guide connects to its source
One invoice.
Two different windows.
For an eligible Ontario proper invoice, the owner’s payment and notice windows run from receipt. The date on the invoice is only part of the picture.
Understand the payment clockReceived by the owner
Ontario illustration · eligible proper invoices.
Statutory counting rules and qualifications apply.
The Construction Act.
Section 6.4 sets out the ordinary owner payment and non-payment provisions. Read it alongside the proper-invoice and transition rules.
Read the Act (opens in a new tab)The primary material
Start with the statute, regulations and official implementation material. A summary helps explain a rule; it does not replace it.
The applicable facts
Jurisdiction, contract transition, project type, role and evidenced events determine whether a rule fits a situation.
The honest limit
This is general education produced by Tiercord Solutions. No independent legal review, government status or accreditation is claimed.
The source register.
Ontario
Framework in forcePrompt-payment applicability depends on the contract and procurement transition rules, not just the date on an invoice. Check section 87.3. The rules changed again on 1 January 2026; use the applicable version.
Construction Act, R.S.O. 1990, c. C.30 (consolidated)O. Reg. 303/18 (Forms 1.1-1.5, Form 6, Form 8)O. Reg. 264/25 (Adjudications under Part II.1)Prescribed construction-lien formsAlberta
Framework in forceThe 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.
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 pageSaskatchewan
Framework in forceThe prompt-payment provisions began on 1 March 2022. Contract transition rules and exclusions matter; an old contract is not automatically brought into the regime by a new invoice.
The Builders' Lien Act, SS 1984-85-86, c. B-7.1 (consolidated)The Builders' Lien Regulations, RRS c. B-7.1 Reg 1 (consolidated to SR 92/2020; Forms A.1 to A.6)SK coming-into-force announcement (2022-03-01)Manitoba
Framework in forceThe prompt-payment provisions came into force on 1 April 2025. Check the contract transition provisions and confirm that the work falls within the Act before calculating.
The Builders' Liens Act, C.C.S.M. c. B91Builders' Liens (Prompt Payment) Regulation, M.R. 113/2024The Interpretation Act, ss. 22-24British Columbia
Awaiting commencementThe official consolidation checked on 4 October 2026, current to 22 September 2026, marks sections 1–51 as not in force. Commencement and transition details need to be checked before using the new framework.
Builders Lien Act, SBC 1997, c. 45 (in force)Construction Prompt Payment Act, SBC 2025, c. 24 (NOT in force)Bill 20 as passed third reading (full text; the statreg page prints no section text)BC prompt-payment implementation status (Ministry of Infrastructure)Federal
Federal deadlines are not offered by these calculators. The Act has separate scope, designation and counting provisions.
About this edition
Editorial edition: 4 October 2026. Ontario, Alberta, Saskatchewan, Manitoba and B.C. status references were checked for this edition. The calculators reuse Tiercord’s shared statutory constants and provincial holiday calendars, whose legal-research review dates remain recorded in the product source.
A publication date is not a guarantee that every law remains unchanged. Follow the primary source and seek qualified advice for a live decision. To flag a correction, email support@tiercord.ca with the page and supporting source.