Manitoba does two things no other province quite matches: it sets mandatory minimum wages for the construction industry that sit far above the general minimum, and it runs the lowest builders lien holdback in the country at 7.5 percent. Add a 12 percent combined sales tax, prompt payment in force since 1 April 2025, WCB Manitoba at the lowest average rate in Canada, a nine-trade compulsory list that includes three beauty trades, and gas permits that come from the Office of the Fire Commissioner rather than the utility, and Manitoba has a profile all its own. This guide goes deeper than the one-page summary on construction wages, the 7.5 percent holdback and the trade quirks.
The Construction Industry Wages Act
This is the big one. The general minimum wage under The Employment Standards Code is 16.00 dollars an hour, but if you hire on a construction site, the Construction Industry Wages Act (CIWA) sets much higher mandatory floors that win where they are higher. CIWA covers two sectors with separate schedules: ICI (industrial, commercial and institutional building work) and Heavy Construction (highways, bridges, dams, sewer and water mains). House building is generally excluded except for major projects.
The rates are real wage floors, not benchmarks. As examples from the current ICI journeyperson schedule, a carpenter sits around 37 to 38 dollars an hour, a construction electrician around 44 to 45 dollars, a plumber and a steamfitter-pipefitter each around 44 dollars, and a sprinkler system installer near 48 dollars. ICI workers are classified into journeyperson, skilled tradesperson, trainee and construction worker tiers, with ratio limits on trainees per skilled tradesperson. A self-employed sole proprietor with no employees is not directly bound by CIWA rates, but the moment you put a CIWA-classified worker on a site you must pay at or above the schedule, and the rates are the de facto benchmark for quoting subcontract labour. Confirm the current schedule with the Employment Standards Branch, because the rates step up on 1 May each year.
Builders lien: 60 days, 7.5 percent holdback
Under The Builders' Liens Act, you have 60 days to preserve a lien by registering it on title. Following the Bill 38 reforms, that 60-day period applies to all contracts entered on or after the change came into force in late 2024; the older 40-day period still governs genuinely old contracts. The holdback is 7.5 percent, not the 10 percent used almost everywhere else, and Manitoba has used that lower rate since the Act's inception. After registration you have an unusually generous 2 years to perfect the lien by commencing an action, although a formal notice to commence can shorten that to 30 days.
Manitoba also has strong statutory trust provisions that operate independently of the lien. Money a contractor receives on a project is held in trust for subcontractors, workers and the WCB, and misusing trust funds is an offence. Providing a lien bond does not cancel the trust obligation, so you cannot use a bond as a substitute for actually paying the people below you.
Prompt payment through the MPPAA
Prompt payment has been in force since 1 April 2025, but only for contracts entered on or after that date. It is not retroactive, so a job signed in 2024 runs under the old rules. An owner must pay a proper invoice within 28 days, a notice of non-payment is due within 14 days if the owner disputes, and a contractor pays subcontractors within 7 days of being paid. Disputes go to adjudication through the Manitoba Prompt Payment Adjudication Authority (MPPAA), with a determination within 30 days that is interim binding and payable within 10 days. Adjudication must be started before the contract is treated as completed, which happens 90 days after the work is ready for use, so do not sit on a dispute.
RST: the end-consumer rule
Manitoba charges the 5 percent GST plus a 7 percent Retail Sales Tax (RST), for a combined 12 percent. The RST rule for trades is that a contractor who supplies and installs materials into real property is the end consumer and pays 7 percent RST on those materials at purchase, rather than charging RST on the contract price. Mechanical and electrical trades are the exception: plumbers, electricians, HVAC and gas fitters collect RST on their total selling price for the work under a separate bulletin. Know which side of that line your trade falls on.
Compulsory trades and the gas-permit trap
Manitoba designates nine compulsory trades, and unusually three of them are personal-service trades, not construction: hairstylist, plus electrologist and esthetician. The construction compulsory trades are construction electrician, industrial electrician, refrigeration and air conditioning mechanic, sprinkler fitter, steamfitter-pipefitter, and the crane and boom truck operator group. Plumber and sheet metal worker, compulsory in many provinces, are voluntary in Manitoba. The permit trap to remember: Manitoba Hydro issues electrical permits, but gas installation permits come from the Office of the Fire Commissioner, not Hydro and not the apprenticeship body. That split costs people time.
Workers comp and small claims
Your board is WCB Manitoba, with a 2026 average rate of 0.95 dollars per 100 dollars of assessable payroll, the lowest in Canada, reflecting a healthy reserve, and a high assessable-earnings ceiling of 171,500 dollars. That 0.95 is the all-industry average; construction classes sit well above it, so pull your own classification rate. The small claims limit is 20,000 dollars, raised from 15,000 dollars on 1 January 2025.
Common mistakes
- Quoting labour off the general minimum wage. On a construction site the CIWA floor governs, and it is far higher than 16.00 dollars.
- Expecting a 10 percent holdback. Manitoba is 7.5 percent, the lowest in the country.
- Going to Manitoba Hydro for a gas permit. Gas permits come from the Office of the Fire Commissioner.
- Assuming prompt payment covers an old contract. It applies only to contracts entered on or after 1 April 2025.
Know someone who needs this?
Keep reading
Was this guide useful?
Didn't find what you were looking for?
Spotted something wrong or out of date? Email us at hello@kilnguides.co.uk.
In crisis? 988 Suicide Crisis Helpline (call or text 988) ·