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What Is a Non-Compete Clause When You Sell a Business in Ontario?

Understand how non-compete clauses work when you sell a business in Ontario, how they differ from employment non-competes, and what to ask before signing.

Buying & Selling a Business4 min readTSLBy the Treadstone Law Team · OntarioUpdated November 1, 2026
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Key takeaways
  • Ontario's ESA bans most employment non-competes made since October 25, 2021.
  • An exception applies for some sole proprietorship or partnership sales where the seller becomes the buyer's employee.
  • The Ministry reads that exception as not covering the sale of a corporation.

When you sell a business, the buyer often wants your promise not to open a competing one nearby. That promise is a non-compete clause. If you are the seller, it can limit what you do next, so it deserves a careful read.

Ontario treats non-competes in employment very differently from those in a business sale. This article explains the difference, the exceptions, and the questions to raise before you sign.

Two kinds of non-compete

A sale-of-business non-compete is a promise by the seller to the buyer, made as part of the deal, to protect the value of what the buyer paid for, such as customers and goodwill. An employment non-compete is a promise by an employee to an employer.

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, and non-solicit and non-disclosure agreements fall outside the ban.

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.

The Ministry's manual reads this 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 a commercial covenant, whereas non-competes with the seller's employees remain barred unless an exception applies.

Who signsHow the ESA ban applies
Individual or partners selling, then employed by the buyerException may apply
Corporation selling its businessException does not cover it; the non-compete is a commercial covenant
Seller's employeesBarred unless an exception applies
Executive of the businessNot prohibited

Executives and other exceptions

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, chief corporate development officer or any other chief executive position.

A job title alone is not enough to rely on, so check whether the person actually holds one of the listed offices.

How enforceable is it?

Whether a sale-of-business non-compete can be enforced is a question for the courts, and disputes about enforceability can still go to court. How this applies to your own clause depends on your situation. It is worth having a lawyer read the clause against your own facts.

Employees who signed a prohibited non-compete, or faced reprisal for refusing one, can file an ESA claim with the Ministry of Labour.

Other points that come up in a sale

The non-compete is rarely the only term that matters. Staff and tax questions often sit beside it in the same agreement, and they can affect what you owe or receive.

How these points apply to your deal depends on the facts, so it is worth confirming them with a lawyer or accountant.

What to do next

Treat the non-compete as a term you can negotiate, not a formality. Think about what you plan to do after closing before you agree to it.

Frequently asked questions

Can an employer make staff sign a non-compete in Ontario?

Generally not. Since October 25, 2021, the ESA prohibits employers from entering non-compete agreements with employees. Executives are an exception.

Does the ban apply to me as a business seller?

The ban does not apply where a sole proprietorship or partnership business is sold, the seller becomes the buyer's employee immediately after, and a non-compete is signed as part of the sale. It does not extend to the sale of a corporation.

Are non-solicit agreements also banned?

No. Non-solicit and non-disclosure agreements fall outside the ESA ban. Whether a particular one can be enforced depends on its wording and the facts, so it is worth having a lawyer read it.

What if I think my non-compete is unfair?

Disputes about enforceability can still go to court. A lawyer can look at the wording, the sale terms and your situation.

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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