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Can a Departing Partner Be Bound by a Non-Compete in Ontario?

Learn how Ontario's ESA non-compete ban applies when a co-owner sells and stays on as an employee or leaves, and which exceptions may apply to your buyout.

Buying & Selling a Business4 min readTSLBy the Treadstone Law Team · OntarioUpdated November 13, 2026
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Key takeaways
  • Ontario's ESA bans non-compete agreements with employees made on or after October 25, 2021, but non-solicit and non-disclosure clauses fall outside the ban.
  • A sale-of-business exception can allow a non-compete when a sole proprietorship or partnership is sold or leased, the seller becomes the buyer's employee right after, and the non-compete is signed as part of the sale.
  • The Ministry reads that exception as covering individual sellers only, and executives are a separate exception.

When one co-owner buys out another, the buyer usually wants the departing owner not to start a competing business. Whether the person stays on as an employee or leaves completely can affect whether Ontario's employment standards rules limit that promise.

This article explains how the Employment Standards Act, 2000 (ESA) ban on non-competes works in a buyout, and the exceptions that may apply. Enforceability questions can be technical, so a lawyer should review the actual documents.

The general ESA ban on non-competes

Since October 25, 2021, the ESA prohibits employers from entering non-compete agreements with employees, whether before, during or after employment. Agreements made before that date are not prohibited by the ESA.

The ban is limited to non-competes. Non-solicit agreements and non-disclosure agreements fall outside it. A buyout document may therefore still contain those clauses even where a non-compete is barred.

The sale-of-business exception

The ESA ban does not apply where a business, or part of one, run as a sole proprietorship or partnership is sold or leased, the seller becomes the buyer's employee immediately after, and the parties sign a non-compete as part of the sale.

That means all of the conditions matter. The exception is tied to the sale itself, so a non-compete added later or unrelated to the sale does not fit it neatly.

Individual sellers versus corporations

The Ministry's manual reads the sale exception as working only where the seller is an individual or individuals, so it does not cover the sale of a corporation.

A corporate seller's non-compete with the buyer is treated as a commercial covenant, but non-competes with the seller's employees remain barred unless an exception applies. If you own shares through a company, how the deal is structured can change which rules apply, so raise this early.

The executive exception

Non-competes with an executive are not prohibited. An executive means someone holding the office of CEO, president, chief administrative officer, COO, CFO, CIO, chief legal officer, chief human resources officer or chief corporate development officer, or any other chief executive position.

A co-owner who holds one of these offices and stays on may fall within this exception. Holding a title informally or having ownership alone is not the same thing, so check the actual office held.

What to do next

If you are bound by a non-compete, or asked to sign one, a few steps can clarify where you stand. An employee who signed a prohibited non-compete, or faced reprisal for refusing one, can file an ESA claim with the Ministry of Labour, and disputes about enforceability can still go to court.

Frequently asked questions

Does the ESA ban apply to non-competes signed before October 25, 2021?

No. Agreements made before that date are not prohibited by the ESA. Other questions about those agreements may still arise, so it is worth getting advice.

Can I still be bound by a non-solicit or confidentiality clause?

The ESA ban does not cover non-solicit or non-disclosure agreements. Whether a particular clause is enforceable is a separate question a lawyer can assess.

Does the sale exception work if our business is a corporation?

The Ministry reads the exception as covering individual sellers only, so it does not cover the sale of a corporation. A corporate seller's covenant with the buyer is commercial, but non-competes with employees stay barred unless an exception applies.

What can I do if I was made to sign a prohibited non-compete?

You can file an ESA claim with the Ministry of Labour, and disputes about enforceability can still go to court. A lawyer can help you choose between those routes.

Sources

Links go to official government, court and regulator pages. The law changes — confirm you are reading the current version.

This article is general information, not legal advice. Reading it does not create a lawyer-client relationship. Ontario laws, tax rates, and government programs change, and how the law applies depends on your specific facts. For advice about your situation, speak with a licensed Ontario lawyer. Treadstone Law is licensed by the Law Society of Ontario — reach us at 1-844-900-1070 or start a file online.

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