Prompt payment and adjudication in Alberta

Nothing else in Canadian prompt-payment law is shaped like this. Ontario, the federal regime and the rest of the country differ from one another in scope and in timing, but none of them contains a provision that removes schedule disputes from adjudication on a class of projects. Alberta does, and it did so on the same day (1 April 2025) that it made private-sector referral more generous than anywhere else in the country.

The practical consequence is that the first question on an Alberta payment or delay dispute is not what the contract says. It is which Act you are on. This page sits under the Alberta place hub, which carries the two Acts, the citation eras and the Alberta authority map. The pan-Canadian backdrop that Alberta departs from lives at the Canada hub and is not repeated here.

Which Act you are on decides whether your delay claim can be adjudicated at all

Private and municipal work runs on the Prompt Payment and Construction Lien Act, RSA 2000, c P-26.4, where delay is adjudicable by consent and there is no cap. Provincial Crown public works run on the Public Works Act, RSA 2000, c P-46, where delay is excluded from adjudication by statute and a cap applies. The split is more consequential than the contract form, and it is settled before the first notice is served.

The PPCLA has applied since 29 August 2022, when Bill 37 renamed the Builders' Lien Act, RSA 2000, c B-7 and moved the chapter letter from B-7 to P-26.4. The Public Works Act prompt-payment and adjudication provisions were inserted by Bill 30 (2024), the Service Alberta Statutes Amendment Act, 2024, and apply to contracts entered into on or after 1 April 2025. Alberta has two Bill 30s Bill 30 (2026) is the Expedited 120-Day Approvals Act, UNVERIFIED as to status, so any reference must carry the year.

Layer: jurisdictional. Every row rests on secondary sources, no consolidated statutory text was read in original form for this corpus.

Two features of that table are worth isolating because they are the ones practitioners arriving from Ontario, England or the United States get wrong. First, municipal work is private-side for these purposes: a City of Calgary or City of Edmonton job sits under the PPCLA with liens, adjudication and no cap. The public/private line in Alberta is drawn at the provincial Crown, not at public money. Second, the PPCLA s 22 trust is not the lien fund, and it arises only on payments received after a Certificate of Substantial Performance ATB Financial v DLM Oilfield Enterprises Ltd, 2020 ABQB 562, cited to the Builders' Lien Act, c B-7 because it predates the renaming. A delayed private project terminated or abandoned before substantial performance has no trust at all, and a provincial job has no trust of the Crown's money in any event. The security analysis is at liens, the lien fund and trust in Alberta.

Public Works Act s 14.3(2): on provincial Crown work, delay is excluded by name

Public Works Act, RSA 2000, c P-46, s 14.3(2), inserted by Bill 30 (2024) and in force 1 April 2025, removes from adjudication "changes or delays to a construction schedule", "completion or milestone dates in a contract or subcontract", and "disputes over the interpretation of relief events, designated changes in law, remedial actions, or force majeure events". Every category an extension-of-time claim lives in is carved out expressly. Nothing comparable exists anywhere else in Canada.

The subsection also excludes any dispute that is not a dispute for payment for labour, equipment, materials or services on a public work. The validity of a termination, and any monetary claim exceeding the limit cross-referenced to the Court of Justice Act (Alberta) s 9(1)(i), excluding costs and interest. The corpus records the carve-out as verified across four independent sources.

A contractor on an Alberta government job cannot use adjudication to get an interim decision on time. Schedule change, milestone date, relief event and force majeure are each excluded by name, and they are the whole of an extension-of-time claim.

That has three operational effects on a provincial job. The contractual machinery is the only route to time relief, so the notice provisions in the Alberta Infrastructure Construction Management Agreement, the Alberta Transportation and Economic Corridors General Specifications or whichever form governs are doing all of the work, there is no statutory backstop behind them. A delay claim cannot be split off and adjudicated to create leverage on the schedule, as it can on private work by consent. And a claim framed as payment but resolved on schedule facts invites a jurisdictional objection under s 14.3(2), so the referral has to be drafted to stand as a payment dispute on its own terms.

The exclusion is not the only public-side asymmetry. Public Works Act s 14.5(2) exempts "capital asset upkeep contracts" (maintenance and cleaning) and "special scope contracts", which the corpus describes as contractor-financed projects and certain P3 arrangements, from the regime. And SINGLE-SOURCE PWA s 11(3) expands the Crown's right to withhold for late performance to any money owed, not merely money owed on the delayed contract, so on a multi-contract provincial programme one late project can bleed cash from another.

What a sub-tier claimant on an Alberta government job is actually left with

PPCLA s 1.1 excludes "public works" as defined in the Public Works Act, and agreements with the provincial Crown or a Crown agent, from the PPCLA entirely. Below first tier on an Alberta government job that leaves no lien, no trust of the Crown's money and no substantive Public Works Act right, only the contract claim against the party immediately above, plus the labour and material payment bond if one was furnished. That is a thinner position than a subcontractor anywhere else in Canada expects.

The Public Works Act does supply one surviving statutory route, and it belongs to the claimant who supplied the work. Section 14(3) requires notice of the claim to be given by registered mail within 45 days of last supply, specifying the nature and the amount of the claim. Compliance is strict. Graham Construction and Engineering Inc v Alberta (Infrastructure), 2021 ABQB 184 is the authority, and the arithmetic in it is the argument: 17 claimants who used the statutory form were paid, and 32 claimants, including Graham itself, were shut out. Cite it as ABQB. It predates the 8 September 2022 renaming of the Court of Queen's Bench to the Court of King's Bench, which happened mid-year, so Alberta 2022 carries both ABQB and ABKB and an ABQB citation dated 2023 or later is almost certainly a transcription error.

Three drafting consequences follow for anyone below the general contractor on provincial work. Serve the s 14(3) notice in the statutory form and by registered mail even where the account is not yet in dispute, because the 45 days run from last supply rather than from non-payment. Confirm at award whether a labour and material payment bond exists and obtain a copy, because on a provincial job it is frequently the only security in the structure. And treat the contractual claim provisions in the head contract as the entitlement rule for time, since there is neither adjudication on delay nor a lien to convert the claim into leverage. The notice analysis is at notice and time bars in Alberta.

Why Alberta is the most claim-friendly private adjudication forum in Canada

On private and municipal work three features combine that no other Canadian jurisdiction offers together. Delay is adjudicable by consent through the widest catch-all in the country. Referral is available up to 30 days after final payment under PPCLA s 33.4, so post-completion referral works. And referral is available concurrently with litigation. The last two both took effect on 1 April 2025 under Bill 30 (2024). There is no monetary cap.

The catch-all is recorded in the corpus at s 19 of the Prompt Payment and Adjudication Regulation made under the PPCLA, alongside a valuation head that expressly covers "a written change order, whether approved or not, or a proposed change order". The catch-all itself reaches "any other matter in relation to the contract or subcontract that the parties to the dispute agree to, regardless of whether or not a proper invoice was issued". That wording is wide enough to carry a pure delay reference if the other side agrees, and it is under-used: a respondent confident of its schedule position will sometimes consent.

The timing is the more striking half. PPCLA s 33.4 permits referral up to 30 days after final payment, final payment being defined as the earlier of complete payment under the contract terms or the required payment date under ss 32.2, 32.3 or 32.5. On concurrency with litigation, pre-Bill 30 (2024) sources, including a widely circulated November 2023 cross-jurisdictional comparison, state that Alberta prohibits adjudication once a court action has commenced. That is out of date: Bill 30 (2024) removed the bar, and adjudication now terminates only if the court issues a merits-based order. The caveat the corpus keeps is that where the court action precedes the adjudication, complications may still prevent parallel proceedings.

Set that against the rest of the country. In Ontario, under the Construction Act, adjudication of a contract dispute is unavailable once notice is given more than 90 days after the date the contract is completed, abandoned or terminated (s 13.5(3)) so the Ontario window closes at completion plus 90 days while Alberta's stays open until 30 days after final payment. Ontario is nonetheless the only Canadian jurisdiction where time appears on the adjudicable-matters list at all: O. Reg. 264/25 s 19, in force 1 January 2026, adds a request for an extension of time as an ancillary head, available only where reasonably necessary to a subsequent determination and not on public-private-partnership projects. Federally, the Federal Prompt Payment for Construction Work Act, SC 2019, c 29, s 387, s 16(1) confines an adjudicator to a dispute over non-payment, which is the narrowest scope in Canada.

Layer: jurisdictional, and comparative across four regimes. Every row rests on secondary sources, no consolidated statutory text was read in original form for this corpus.

One further private-side feature is easy to miss. PPCLA s 5(2), as amended and in force 1 April 2025, allows engineers and architects to contract out of the Act, waiving lien and holdback rights in exchange for not being subject to holdback obligations. A delay claim advanced by or against a consultant on an Alberta private project may therefore sit entirely outside the PPCLA machinery, including outside adjudication.

The monetary cap applies to Public Works Act adjudication only, and the figure is not settled

There is a cap, but it belongs to one regime. It applies to adjudication under the Public Works Act, RSA 2000, c P-46, provincial Crown public works, contracts entered on or after 1 April 2025, and it does not apply to PPCLA private-sector adjudication, where there is no cap at all. That much the corpus records as verified across four independent sources. The figure itself is not settled and this page does not choose between the two numbers in circulation.

The cap is expressed as a cross-reference rather than a figure. Public Works Act s 14.3(2) points at the limit in the Court of Justice Act (Alberta) s 9(1)(i), excluding costs and interest. CONFLICT Firm commentary uniformly glosses that cross-reference as $200,000, but the prescribed civil limit of the Alberta Court of Justice has been $100,000 since 1 August 2023. The amendment to s 9(1) gave the government authority to publish a regulation allowing claims up to $200,000, and the government selected $100,000 as the actual limit after consulting stakeholders. Every source but one says $200,000, one says $100,000.

So the open question is narrow and precise: does PWA s 14.3(2) point at the statutory ceiling in s 9(1)(i) or at the prescribed limit made under it? Read s 9(1)(i) before relying on either number. Two subsidiary points follow. On a provincial job the cap is rarely the binding constraint on a delay claim in any event, because s 14.3(2) has already removed schedule disputes from adjudication before any monetary threshold is reached. And on private work the cap should not be mentioned at all. The widely repeated statement that "a $200,000 cap applies to Alberta adjudication" is wrong as a description of the PPCLA regime, and repeating it will cost a claimant a referral it was entitled to bring.

Note the naming trap that sits behind the cross-reference. The Provincial Court of Alberta became the Alberta Court of Justice on 1 April 2023, and the $100,000 civil limit took effect on 1 August 2023. Commentary written before those dates, or describing the court by its former name, is describing a different threshold landscape.

The prompt-payment machinery: the proper invoice, the cascade and the notice chain

Both Alberta regimes run on the same architecture. A proper invoice starts a clock, a payment period runs from it, and a notice of dispute stops or narrows it, but the periods and the escape routes differ. Under the PPCLA, private and municipal, the proper invoice is defined by s 32.1(1) and must contain a description of the work or materials, the amount requested, a breakdown of payment terms, the contract reference and an express statement that the invoice is intended to be a proper invoice.

That express statement is the single most commonly missed requirement in the Act. An invoice lacking it does not start the 28-day payment clock, does not start the notice-of-dispute clock, and does not start the run toward final payment for the purposes of s 33.4 adjudication timing. Two further provisions matter on a delayed job. PPCLA s 32.1(3) voids any contract term making a proper invoice conditional on prior certification or owner approval, with a testing-and-commissioning exception at s 32.1(4) a direct statutory attack on "no certificate, no invoice" clauses, which are exactly what strangles a contractor's prolongation cash flow on a disputed private job. And s 32.1(6) requires a proper invoice at least every 31 days, a cycle that may be shortened by agreement but not lengthened. Both of the last two are recorded SINGLE-SOURCE in part. On a long prolongation, keep invoicing monthly even where the parties have stopped certifying.

Layer: jurisdictional, private and municipal work only. Rests on secondary sources, it is UNVERIFIED whether Forms 1 to 5 sit in the Prompt Payment and Construction Lien Forms Regulation, Alta Reg 51/2002, or in Alta Reg 23/2022.

The undertaking in s 32.3(5) is the most aggressive feature of the Alberta cascade and it bites hardest on delay. A contractor withholding from a subcontractor because of alleged subcontractor delay must, within 7 days of the owner's Form 1, commit to referring the dispute to adjudication within 21 days. And delay is precisely the dispute type Alberta's forum architecture is least comfortable with. A withholding decision taken on schedule grounds is therefore a decision to adjudicate on schedule grounds, on a very short fuse.

The Public Works Act cascade, for provincial Crown contracts entered on or after 1 April 2025, is harsher in two respects. Proper invoices run every 31 days, the Crown pays the contractor within 28 days. The contractor pays its subcontractor within 35 days, the subcontractor pays its sub-subcontractor within 42 days. All measured from the proper invoice rather than from receipt of the payment above. The contractor must pay undisputed amounts at 35 days even if the Province has not paid it. And SINGLE-SOURCE the PPCLA's notice-of-non-payment mechanism for stopping the clock is not available under the Public Works Act, so the public-side contractor carries the financing risk of the Crown's delay without the private-side escape.

Pay-when-paid is not prohibited in Alberta, it fails on clarity

Several cross-province surveys state that pay-when-paid is disallowed in Alberta. That is an overstatement and repeating it will misprice a subcontractor's risk. The PPCLA, RSA 2000, c P-26.4 contains no express prohibition on pay-when-paid or pay-if-paid clauses on private and municipal work. What the Act does is make such a clause commercially inoperative as a withholding mechanism, and what the case law does is hold it to a demanding standard of clarity.

The statutory half is the 35-day backstop. A contractor who has not itself been paid must still pay its subcontractor at 35 days from the proper invoice under PPCLA s 32.3(4), unless it serves a s 32.3(5) notice carrying the 21-day adjudication undertaking. The contractual half is Canadian Pressure Testing Technologies Ltd v EllisDon Industrial Inc, 2022 ABKB 649, in which a clause providing for payment "no later than five business days after [the general contractor] receives payment" was held not to be an enforceable contingent-payment clause. The reasoning was clarity: any provision intended to diminish or remove the subcontractor's right to be paid should clearly state that. Summary judgment went to the subcontractor for $98,301.

The accurate statement, then, is that on an Alberta private or municipal project a subcontractor's prolongation money is not protected by a statutory ban. It is protected by a drafting-clarity rule plus a 35-day statutory backstop. A well-drafted pay-if-paid clause probably still allocates owner-insolvency risk, and a subcontractor pricing an Alberta prolongation exposure should assume the clause may work if it is written plainly enough. On provincial Crown public works the analysis is different again: the Public Works Act cascade requires payment of undisputed amounts at 35 days from the proper invoice whether or not the Province has paid, and the PPCLA notice mechanism is not available.

Determinations, lien rights and the judicial review that has never happened

A PPCLA determination on private or municipal work is binding and enforceable, and it runs on a track independent of the lien. Welcome Homes Construction Inc v Atlas Granite Inc, 2024 ABKB 301 holds that lien rights and adjudication are independent processes, that a homeowner's notice to prove lien could not override an adjudicator's determination, and that an adjudicator's order may be filed as an order of the court with the same effect. Determinations are binding under PPCLA s 33.6(5) save for a court order, judicial review, an appointed arbitrator's award, or the parties' written agreement.

Commentators note SINGLE-SOURCE that Alberta's drafting uses "except", which reads more final than Ontario's expressly interim-binding formulation. That is a difference of tone in the sources rather than a decided point, and it should be treated as such until a court says otherwise. Judicial review must be brought within 30 days, CONFLICT the section number is given as s 33.7 by some sources and s 33.8 by others, and the 30-day period is agreed across all of them.

Which brings the page to its flattest finding. There is no reported Alberta judicial review of an adjudicator's determination as at August 2026. Welcome Homes was not a judicial review, and the whole Canadian body of adjudication-review law is Ontarian. That is not a gap in the research. It is the state of the law, and it means an Alberta party contemplating review of a determination is reasoning from Ontario Divisional Court authority applied to a differently worded statute. The Ontario line is set out at Ontario prompt payment and adjudication.

Two further Alberta absences bear on the same forum question and belong in print rather than in a footnote. There is no Alberta decision from 2020 to 2026 setting aside or varying an arbitral award on a construction delay finding, every located Alberta construction-arbitration decision in that window is pro-finality. And Alberta has no specialist construction list, no construction judges and no construction practice note the Commercial List is insolvency-only. A party that loses a determination on a delayed Alberta project is therefore heading into a general civil forum, on an untested review route, against a statute whose reviewability nobody has yet litigated in the province.

À propos de ce contenu Le contenu de la bibliothèque est une information générale sur la pratique des réclamations de construction, et non un avis juridique. Le droit à réclamation, les délais et la procédure sont régis par votre propre contrat et par le droit du lieu où les travaux sont exécutés. Révisé le 9 août 2026 · Signaler une correction