Manitoba runs the lowest holdback percentage of any province covered in this cluster, on a single 60-day clock that does double duty for both retention and filing. Read directly from the Act, not a summary of it, alongside what Winnipeg's own employment and investment numbers show.
Market signals
Section 24(1) of the Builders' Liens Act (C.C.S.M. c. B91) requires the person primarily liable for payment under a contract to “deduct 7.5% of each payment to be made by the person in respect of the contract,” and to retain that amount for at least 60 days after a certificate of substantial performance is given, or after the work, services and materials under the contract have been completely done, provided and supplied. That is a genuinely lower figure than BC, Ontario, Alberta or Nova Scotia, all of which hold back 10% — a real, statute-level difference worth knowing before assuming a national standard applies.
Section 43(1) of the Act allows a contractor's claim for lien to be registered before or during performance of the contract, or within 60 days after substantial performance or abandonment; section 43(2) gives a subcontractor the same 60-day figure, running from the same trigger or from their own last supply. In Ontario, by contrast, the preserve-and-perfect structure runs 60 days then a further 90; in BC the hold period and the filing period are two different numbers, 55 and 45. Manitoba's single 60-day figure covering both the holdback retention period and the lien filing window is simpler to track but easy to under-estimate — missing it closes both doors at once.
Statistics Canada's Daily release for May 2026 building-construction investment, dated 20 July 2026, records Manitoba among the provinces contributing to that month's national multi-unit residential gain, at $30.8 million — smaller than British Columbia's $52.5 million and Ontario's $44.8 million contribution, but a real, dated, province-level figure in its own right. Separately, BuildForce Canada's 2024 sector review names Winnipeg specifically as the region that “dominates the province's construction market,” recording a slight 0.9% employment decline that year that alone accounted for about 30% of Manitoba's entire provincial construction employment loss — a Winnipeg-specific figure, reported here as Winnipeg's, not blended into a province-wide claim.
Manitoba requires a joint workplace safety and health committee once a site regularly employs 20 or more workers, or when required by the Director, per the jurisdictional table CCOHS publishes — with a committee of at least 4 members but no more than 12, at least half representing workers. That threshold matches Alberta's and BC's 20-worker trigger, though Manitoba's minimum committee size of 4 is higher than Alberta's minimum of 2.
Manitoba's 7.5% holdback is the standout figure in this series — see the BC page for BC's 10%/55-day/45-day structure and the Alberta page for Alberta's 10%/60-day figure alongside real, published prompt-payment day counts that Manitoba's Act does not carry.
They run from the same triggers — substantial performance, completion or abandonment — and both happen to be 60 days under sections 24(1) and 43(1)–(2), but they are legally separate obligations. Missing the filing deadline extinguishes lien rights even if the holdback itself is still being properly retained.
That figure is provincial, from Statistics Canada's May 2026 building-construction investment release. The 0.9% employment decline and “dominates the province's construction market” language are BuildForce's Winnipeg-specific figures — the two are from different sources and describe different things.
A 30-minute call is enough to see where AI flags a holdback release or filing date before it closes.
