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WSIB Clearance Certificates: The Free Document That Caps Your Liability
A WSIB clearance certificate is free, takes a minute, and caps what you owe if a subcontractor hasn't paid their premiums. Here's how it works in Ontario.
A WSIB clearance certificate is free, takes about a minute to pull, and is the only thing standing between you and somebody else's unpaid premiums. If you hire subcontractors anywhere in Ontario and you aren't collecting clearances before the work starts, you're carrying a liability you were never paid for.
Here's what a clearance does, what skipping it costs, and who has to be registered with the WSIB in the first place.
What is a WSIB clearance certificate, and what does it protect you from?
A clearance is a number the WSIB issues to a registered business showing it's up to date on premium payments and reporting. Only businesses in good standing can get one, so the certificate is really a statement that this contractor doesn't owe the WSIB money right now.
The protection is spelled out in the WSIB's own policy. The board issues a clearance to relieve a principal of liability for payment obligations to the WSIB that a contractor or sub-contractor may incur on that contract during the certificate's validity period. In plainer terms: hold a valid clearance and the WSIB waives its right to come after you for what your sub owes.
What happens if you hire a subcontractor without a valid one?
You inherit their debt, up to a ceiling. The policy is blunt: if the contractor has payment obligations owing, the principal may be liable for the unpaid premiums and other outstanding amounts, up to the value of the labour portion of the contract.
So the exposure isn't the sub's whole WSIB balance, and it isn't your whole contract. It's the labour portion of what you agreed to pay them. On a job where you supply materials and they supply trades, that's still most of the money. Here's the same $90,000 contract three ways.
| Your situation | Contract value | Labour portion | Clearance held | Exposure to the sub's WSIB debt |
|---|---|---|---|---|
| Clearance pulled before work starts, renewed through the job | $90,000 | $60,000 | Valid throughout | Nil |
| Clearance pulled at signing, job ran six months, never renewed | $90,000 | $60,000 | First 90 days only | Up to $60,000 for the uncovered stretch |
| No clearance, and the sub turns out to owe premiums | $90,000 | $60,000 | None | Up to $60,000 |
The middle row is the one that catches good operators. They did the right thing at the start, the paperwork went in a folder, and nobody diarised the renewal. A clearance is free and the exposure is five figures, which makes this the cheapest risk control in your business and the easiest one to forget.
How long is a clearance valid, and when do you need another?
A clearance is valid for up to 90 calendar days, depending on the date it is issued, and is renewable. One number covers all of your contracts, so this isn't a per-job application, it's a rolling date to keep an eye on.
That 90-day window is why the rule of thumb is to pull a clearance before work begins and keep one current for the duration of the work. If your job runs longer than a quarter, one certificate at signing isn't enough. You can get a clearance immediately through the WSIB's online services, or within three to five business days if you request it by email, and you can switch on email notifications so a new one lands automatically each time yours renews.
Does your business have to register with the WSIB at all?
Most Ontario businesses with employees do, and the WSIB counts family members and sub-contractors as employees for this purpose. You get 10 calendar days to register from the day you hire your first employee, which is a tighter deadline than most new employers expect.
Some industries must register: construction, restaurants and bars, sales and services, agriculture, manufacturing, trucking and transportation, and a private household hiring a nanny, housekeeper or gardener. Others don't have to but may choose to, including banks and insurance companies, trade unions, private day cares, travel agencies, photography businesses, barber shops and many hair salons, and funeral establishments. If you're in that second group and you've never registered, you aren't doing anything wrong, but you also have no coverage to point at when someone gets hurt.
What does WSIB coverage cost in 2026?
Premiums are a rate per $100 of insurable payroll, and the average for 2026 is $1.23 per $100, which the WSIB says is the lowest in more than 50 years. Your own rate depends on your business activity and claims history, so treat the average as a sense of scale rather than a quote.
At the average rate, a business with $400,000 of insurable payroll is looking at $4,920 for the year: $400,000 divided by 100, multiplied by 1.23. There's also a per-worker cap. The maximum insurable earnings ceiling for 2026 is $121,700, up from $117,000 in 2025, so a manager on $140,000 only generates premiums on $121,700 of that, which is $1,496.91 at the average rate.
One more thing worth knowing if your rate moved: the WSIB limits how fast it can move. Businesses with projected increases or decreases shift a maximum of three risk bands a year, roughly 15 per cent, until they reach their projected rate. So a bad claims year doesn't reprice you overnight, and a good one doesn't reward you overnight either.
What about owners, partners and independent operators?
Outside construction, business owners aren't automatically covered. Sole proprietors, partners and executive officers aren't covered by the WSIB but can request optional insurance, and genuine independent operators working outside construction don't need to register at all.
Construction is the exception, and it's a big one. Expanded compulsory coverage means people who own or run a construction business, with or without employees, must have coverage and register, with some exceptions. The same page is explicit that independent operators, sole proprietors, some partners and some executive officers who work in construction must have coverage.
There's a trap here for anyone hiring. An independent operator outside construction might not be obligated to register, and so wouldn't be eligible for a clearance certificate at all. If a sub tells you they can't produce a clearance, that may be perfectly true rather than a red flag, and the WSIB has a worker versus independent operator questionnaire that settles the status in writing. Get that ruling on file, because the same facts that make someone an independent operator here are the facts the CRA weighs when it decides whether your contractor is really an employee.
The YNL Group Inc. approach
We keep a clearance register for clients who use subcontractors, so every active sub has a current certificate and the renewal date is somebody's job rather than nobody's. It's a small piece of admin that quietly removes a five-figure risk, which is the kind of thing a back-office partner should be doing without being asked.
If you've hired a sub this year and you're not sure whether a clearance was ever pulled, that's worth half an hour. Talk to us and we'll go through your subcontractor file with you.
This article is general information about WSIB registration and clearances in Ontario, not legal advice. For your own situation, check with the WSIB or your advisor.