Ontario Temp Agency Licensing: What Clients Have to Check Before the Holiday Rush

If you bring in temporary workers anywhere in Ontario, the agency supplying them must hold a temporary help agency licence issued under the Employment Standards Act, 2000. That has been the rule since July 1, 2024, and the obligation runs both ways: a business is not allowed to knowingly engage or use an unlicensed agency. Checking takes a few minutes on the province's public licence search, and it belongs at the top of your vendor checklist before the November and December ramp-up.

The licensing regime came out of the Working for Workers Act, 2021. It sits on top of older rules in Part XVIII.1 of the ESA that already made client businesses share responsibility for some agency obligations. Put together, they mean a cheap quote from an agency you have never vetted can turn into your problem.

Why this matters more in October than in March

Most of the GTA's seasonal labour demand lands in a short window. Distribution centres around Mississauga and Brampton, e-commerce fulfilment along the 401 and 407 corridors, retail backrooms and event venues all add people at roughly the same time. That is when new agencies appear, when established ones run short, and when purchasing teams are under pressure to sign whoever can fill a shift on Monday.

Licensing does not change how hard it is to find workers. It changes what happens if you choose badly. An operations manager who signs a rush order with an agency that turns out to be unlicensed, or whose licence lapsed, has a compliance exposure that is easy to avoid with a short pre-check.

What the licence actually covers

A few points worth knowing before you talk to any agency:

• Every agency operating in Ontario needs one. This includes agencies based outside the province that place workers at Ontario sites.
• Licences are not permanent. They are issued for a set term and must be renewed, so an agency that was licensed when you signed last year may need to be checked again now.
• The ministry can refuse, suspend or revoke a licence. An agency that loses its licence cannot keep supplying workers, which can leave you short mid-season if you had no backup.
• Agencies post security with the ministry as a condition of licensing. The amount and form have been adjusted since the program launched, so confirm current details on ontario.ca rather than relying on a figure from an old article.

The official overview lives on the Ontario government's temporary help agency and recruiter licensing page, which also links to the public licence search.

The client obligations that already existed

Licensing is new. Joint responsibility is not. Since November 2015, a client business in Ontario has been jointly and severally liable with the agency for certain unpaid wages owed to assignment employees who worked at its site. That covers regular wages, overtime pay, public holiday pay and premium pay for the pay period in which the work was done.

In practice: if the agency fails to pay a worker for hours worked at your warehouse, the worker can pursue your company for that money. You cannot contract out of this with a clause in the services agreement.

Clients also have a record-keeping duty. You are expected to record the hours each assignment employee works at your site, by day and by week, and keep those records. Most sites already have this through a badge or punch system, but check that temporary workers are actually going through it and not being tracked on a supervisor's clipboard.

Two other rules affect how agency contracts are written:

• Agencies cannot charge workers fees for being placed or for things like resume help.
• If you want to hire a temp directly, the agency can only charge you a conversion fee within the first six months after that worker started their assignment with you. A contract that tries to stretch that window is not enforceable on that point.

A pre-season vendor checklist

Before you sign or renew an agency agreement for the holiday period, work through this list. None of it requires a lawyer.

1. Search the licence register. Use the exact legal name on the agency's invoice, not the brand name on the website. Save a screenshot with the date in your vendor file.
2. Check the licence term. If it expires during your peak, ask when the renewal application was filed.
3. Ask for a WSIB clearance certificate. Agencies in Ontario are generally the employer of record for WSIB purposes. A current clearance certificate confirms their account is in good standing. Request a fresh one at least every 90 days during a long engagement.
4. Confirm payroll mechanics in writing. Who pays, on what cycle, and how hours are reported. Your record of hours and the agency's payroll records should match.
5. Read the conversion clause. Make sure it follows the six-month limit.
6. Get the orientation plan. The Occupational Health and Safety Act still applies at your site. Agree who delivers the site orientation, WHMIS refresher where required, and any equipment training before anyone starts.
7. Name a backup. If your main agency loses capacity or its licence status changes, you want a second licensed supplier already set up.

Keep this file. If a worker files a wage claim with the Ministry of Labour, Immigration, Training and Skills Development, being able to show you checked the licence and kept accurate hours records puts you in a much better position.

Red flags in a rush order

Some signs that deserve a second look before you accept workers:

• The quote is noticeably below what licensed competitors are offering for the same role and shift. Part of an agency's bill rate covers statutory deductions, vacation pay and WSIB premiums. A rate that leaves no room for those is a warning.
• The agency describes workers as "independent contractors" for general labour roles. Misclassifying general labour this way shifts risk onto the business using the workers.
• No one can tell you the legal entity name, or it differs between the quote, the contract and the invoice.
• The agency asks you to pay workers in cash or through a third party.

How Mainforce handles it

Every Mainforce request starts with the roles, the site requirements and the terms in writing. When we send a proposal for an Ontario site, the employer-of-record arrangements, payroll responsibilities and conversion terms are spelled out, so your vendor file has what it needs. See the roles we staff on our services overview, or our Toronto staffing page.

Frequently asked questions

Do temp agencies in Ontario need a licence?

Yes. Since July 1, 2024, a temporary help agency must hold a licence under the Employment Standards Act, 2000 to operate in Ontario. Agencies that applied before that date could keep operating while their application was pending, but new applicants must wait for the licence before placing workers.

Can my business be penalized for using an unlicensed temp agency?

The ESA prohibits businesses from knowingly engaging or using an unlicensed temporary help agency. The simplest protection is to search the public licence register before signing and to save a dated record that you did. Recheck at renewal time, since licences have a fixed term.

Is the client responsible if the temp agency does not pay its workers in Ontario?

Partly, yes. Client businesses are jointly and severally liable with the agency for unpaid regular wages, overtime pay, public holiday pay and premium pay earned by assignment employees during the pay period they worked at the client's site. That liability cannot be removed by contract.

How long can a temp agency charge a fee if I hire the worker directly?

Under the ESA, an agency can only charge a client a fee for directly hiring an assignment employee within six months of the date that worker began their assignment with that client. After that, the worker can be hired without a conversion fee.

Book seasonal workers with the terms in writing

If you are planning holiday volume at an Ontario warehouse, plant or event venue, send us the roles, headcount, shift pattern and start date through the quote form. We follow up with a written proposal covering rates, minimums and the employment arrangements before anyone is scheduled.