An add-on that looked simple in diligence can still create real exposure the moment it is folded into a bigger group, because several employment-law thresholds in Canada are measured at the combined, not the standalone, level — and a platform sponsor who checks them only at the add-on's own scale checks the wrong number.
Key takeaways
An add-on that looked straightforward in diligence can still create real exposure the moment it is folded into a bigger group, because several employment-law thresholds in Canada are measured at the combined platform level, not the add-on's own standalone scale — and a sponsor who checks them only against the add-on's own numbers is checking the wrong figure.
Ontario severance pay, on top of statutory notice, is triggered where an employee has five or more years of service and the employer's global payroll reaches at least $2.5 million. “Global” means exactly that — an add-on whose own payroll never came close to $2.5 million standalone can find itself covered the instant its payroll is measured together with the rest of the platform, which is what integration does by definition the moment shared payroll processing goes live, a point covered in more depth when several sites' back offices are combined at once.
Continuity-of-employment rules do not slow down or reset for integration. An employee's length of service with the seller is attributed onto the purchaser the moment they continue working in the business after the sale, so a role eliminated mid-integration is priced on that employee's full combined tenure — seller years plus platform years together — not on however many months have passed since the add-on's own closing date.
Since October 25, 2021, Ontario has banned employee non-compete agreements outright, with two exceptions. One covers senior executives. The other, more commonly relied on when a seller stays on after the sale, applies only where all of its conditions are met: there is a sale or lease of a business operated as a sole proprietorship or a partnership, the seller becomes an employee of the purchaser immediately following the sale, and the non-compete is entered into as part of that sale. Read literally, that exception names a sole proprietorship or a partnership — not a corporation — so it does not, on its face, cover the ordinary shape of an Ontario add-on deal: a share sale of a corporation where the founder stays on as an employee. Treating a retained founder's non-compete as automatically enforceable on that basis is a real integration-planning risk, not a technicality; non-solicitation and confidentiality agreements, which the ban does not touch, remain available regardless.
Where an add-on's customer contracts are being folded into a shared operating structure, consent to assign is often required before the buyer can enforce those contracts at all — a step distinct from whatever change-of-control consent was already cleared on the acquisition itself, and one that is easy to discover only once an integration timeline is already underway rather than during closing.
Where a seller retains another business that was not part of the deal, and the two businesses coordinate staffing or scheduling during a transition period, that arrangement sits directly against the Competition Act's no-poach test: the criminal offence applies to an agreement with “another employer who is not affiliated” with the accused, and a business the seller kept, rather than sold, is generally not affiliated with the platform at all. Treating an informal no-poach understanding with that retained business as routine transition planning, rather than checking it against the Act first, is the same trap covered from the other side when coordinating pay and hiring across a group's own, commonly owned sites is discussed.
None of this argues for slower integration as a rule — a platform that leaves every add-on running on its own systems indefinitely never realizes the back-office savings covered when several sites are combined into one shared administration. It argues for sequencing the checks that scale with combination — payroll thresholds, service-length pricing, contract consents — ahead of the integration timeline, rather than discovering them partway through it. A 90-day plan that combines payroll systems in week one and only checks the $2.5 million severance threshold in week twelve has already made irreversible termination decisions on the wrong number.
A platform with $2.1M in combined payroll across its existing sites acquires an add-on with $600,000 of its own payroll, a founder who stays on as an employee under the share purchase agreement, and a customer book the platform wants folded into its shared operations within 90 days. Standalone, the add-on's $600,000 payroll came nowhere near Ontario's $2.5 million severance threshold. Combined with the platform's existing $2.1M, the group's payroll is now $2.7 million — above the threshold — so an employee with six years of service let go anywhere in the group during integration now qualifies for severance pay on top of notice, an exposure that did not exist for that role before the add-on closed. Separately, because the add-on was a share sale of a corporation rather than a sole proprietorship, the founder's non-compete does not fall cleanly inside the ESA's stated sale-of-business exception, so the platform relies on non-solicitation and confidentiality terms, which are not banned, rather than assuming the non-compete itself is enforceable.
Yes. Ontario's severance-pay test is triggered at a $2.5 million global payroll, measured across the whole employer. An add-on whose standalone payroll never approached that figure can cross it the moment its payroll is combined with the rest of the platform.
Not automatically. Ontario's sale-of-business exception to its non-compete ban, as published, applies where the business sold operates as a sole proprietorship or a partnership — not, on its face, the ordinary share sale of a corporation, even where the founder stays on as an employee.
Potentially. The Act's criminal no-poach offence applies to agreements between employers that are not affiliated with each other, and a business the seller kept rather than sold is generally not affiliated with the acquiring platform — worth confirming before treating informal coordination during a transition period as routine.
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