- Under section 9 of the Employment Standards Act, 2000, where an employer sells a business — or part of one — and the purchaser employs an employee of the seller, that employee's…
- There must be a sale of a business, or part of a business, as a going concern.
One of the more surprising things a first-time business buyer learns is that Ontario law can treat you as if you had employed the seller's staff all along — even though you never signed anything with them before closing. This is the effect of Ontario's successor employer rules, and understanding when they apply (and when they don't) is essential to pricing and structuring a business purchase correctly.
The short version: whether you inherit an employee's history depends heavily on how the deal is structured and on the specific timing of the hire. This article walks through the legal basis for that rule, the key exceptions, and what it means for your purchase agreement.
What "Successor Employer" Means
Under section 9 of the Employment Standards Act, 2000, where an employer sells a business — or part of one — and the purchaser employs an employee of the seller, that employee's employment is deemed not to have been terminated by the sale. The employee's prior service with the seller counts as service with the purchaser for ESA purposes: things like vacation entitlement, statutory leaves, notice of termination, and severance pay.
In plain terms, the ESA does not let a sale "reset the clock" on an employee's service just because the legal employer changed on paper — provided the conditions below are met.
When the Rule Applies (and When It Doesn't)
- There must be a sale of a business, or part of a business, as a going concern. The rule is built around continuity of the business operation, not a bare purchase of unrelated equipment or inventory.
- The purchaser must actually employ the seller's employee. The ESA does not force a buyer to hire anyone. A purchaser in an asset deal has no statutory obligation to take on any of the seller's staff — the continuity rule only engages once the purchaser chooses to employ them.
- Timing matters. Continuity does not apply if the purchaser hires the employee more than a set window (13 weeks, under ESA s. 9(2)) after the earlier of the employee's last day working for the seller and the day the sale occurs. Hire someone well after that window closes, and the statutory bridge is broken.
- The deal structure changes the analysis entirely. In a share sale, the corporate employer never actually changes — the company that always employed the staff simply has new owners — so continuity is automatic and this rule is not really in play. The successor employer question is really an asset-sale question.
Share Sale vs. Asset Sale: A Quick Comparison
| Share sale | Asset sale (business sold as going concern) | |
|---|---|---|
| Legal employer | Unchanged | Changes to the purchaser |
| Is hiring the seller's staff required? | N/A — employment continues automatically | No statutory requirement to hire anyone |
| Does prior service count if hired? | Always (same employer) | Yes, if hired within the statutory window and the sale is of the business as a going concern |
| Common-law notice exposure | Comes with the corporation | Separate question — not automatically inherited just because ESA minimums transfer |
What Carries Over — and What Doesn't
Where the successor employer rule applies, an employee's continuous service is generally recognized for ESA entitlements going forward — the years they worked for the seller count toward things like vacation and notice calculations under the purchaser going forward. That is a statutory-minimum concept, though. It does not automatically mean:
- The purchaser inherits the seller's common-law wrongful dismissal exposure for that employee. Common-law reasonable notice is a separate legal question from ESA continuity, and a sale of a business can, in some circumstances, still be treated as ending the prior employment relationship at common law even where ESA service counts continue.
- The employee keeps identical wages, benefits, or job title. Continuity of service under the ESA is not the same as a guarantee that all contractual terms stay frozen.
- Non-compete or non-solicitation obligations automatically transfer with the employee. Those depend on the specific wording of the original agreement and on Ontario's post-2021 restrictions on general employee non-competes.
Why This Matters at the Negotiation Table
If you are buying a business as a going concern and plan to keep most of the staff on, build the successor employer analysis into your due diligence early. It affects:
- How you estimate future termination costs (since inherited service length drives ESA entitlements).
- Whether representations, warranties, and indemnities in the purchase agreement need to specifically address employment continuity.
- How offers of employment to existing staff should be worded, so it is clear from day one what is and isn't changing.
Frequently asked questions
If I buy a business and don't hire any of the seller's staff, do these rules still apply to me?
Generally no. The successor employer rule under ESA s. 9 is triggered by the purchaser actually employing the seller's employee. If you decline to hire someone, the continuity provision does not create an obligation toward them.
Does this rule apply if I only buy some of the seller's equipment, not the whole business?
It depends on whether what you bought amounts to a business, or part of a business, sold as a going concern, rather than a collection of unrelated assets. This is a fact-specific question that benefits from legal review before you rely on either outcome.
Can the purchase agreement override the successor employer rule?
The purchase agreement can address how the parties allocate the cost or risk of employment continuity between themselves (through price, indemnities, or representations), but it cannot override an employee's statutory ESA entitlements, which exist independently of what the buyer and seller agree between themselves.
Is a share purchase always simpler for employment purposes?
It avoids the successor employer analysis because the employer never changes, but it is not automatically "simpler" overall — the buyer in a share deal inherits the full employment history and any past HR issues along with everything else in the corporation.
This is a business purchase or sale question
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