Only within three named limits, and the burden of proving the covenant is valid sits on the employer, not the employee.
Short answer
Civil Code of Québec art. 2089 permits the parties to stipulate that an employee may not compete after the contract ends, but “the stipulation shall be limited as to time, place and type of employment, to what is necessary for the protection of the legitimate interests of the employer,” and “the burden of proof that the stipulation is valid is on the employer.” A clause silent on any one of the three axes — commonly the type of employment, phrased instead as a bar on any competing activity — fails on its face.
Time and place are the axes every template limits. Type of employment is the one a clause phrased as prohibiting “any competing activity” silently abandons — that phrasing is not a limitation on type of employment, it is the absence of one. The measure is necessity, not reasonableness: each limit must be confined to what is necessary to protect the employer’s legitimate interests, and the reversed onus removes the practical fallback an overbroad covenant enjoys at common law, where the party attacking it usually carries the running.
Article 2095 goes further than a reasonableness limit: “An employer may not avail himself of a stipulation of non-competition if he has resiliated the contract without a serious reason or if he has himself given the employee such a reason for resiliating the contract.” This does not narrow an overbroad covenant — it removes it from the employer’s hands altogether. An ordinary restructuring termination, with no cause alleged, is a resiliation without a serious reason and is enough to trigger it, whether or not the employer meant anything strategic by the timing.
Article 2089 governs only a covenant genuinely accessory to a contract of employment. A covenant bought as part of the purchase price on a sale, running from the closing date and tracking the business sold rather than the vendor’s job, is governed instead by the sale-covenant rules the Supreme Court set out in Payette v. Guay inc., 2013 SCC 45 — parties negotiating a sale have materially more contractual freedom than parties negotiating an employment contract, and the characterisation turns on substance rather than which document the clause happens to sit in.
The three-axis failure decided a covenant silent on the type of employment. The characterisation question — and art. 2095’s effect on it — is worked through in a covenant that had to choose which contract it belonged to.
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