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Oppression Remedy for Minority Shareholders Seeking a Buyout in Ontario

Frozen out as a minority shareholder? Learn what the Ontario oppression remedy under OBCA s. 248 requires you to prove and how a buyout may arise.

Buying & Selling a Business4 min readTSLBy the Treadstone Law Team · OntarioUpdated November 1, 2026
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Key takeaways
  • The oppression remedy for Ontario corporations is in OBCA s. 248.
  • The Supreme Court of Canada's BCE test asks about a reasonable expectation that was breached and conduct that was oppressive, unfairly prejudicial or unfairly disregarded your interests.
  • In one Ontario case, refusing to redeem a terminated shareholder's shares was found oppressive, and the court awarded damages based on a valuation.

You own a minority stake in a private company, and things have changed. You may have been removed from your job, cut out of information, or blocked from any return on your investment. Your shares are hard to sell, and the majority will not buy them. You want to know whether a court can help.

The oppression remedy is a court claim under OBCA s. 248 about unfair treatment in a company. This article explains the test the court applies, what you generally need to show, and how a buyout can come out of a claim. Every case depends on its own facts.

What the oppression remedy is

The oppression remedy is in section 248 of the Ontario Business Corporations Act (OBCA). It lets a complainant ask the court to deal with conduct that is unfair to their interests as a shareholder.

It is often used in private companies because a minority owner there cannot simply sell on a market. If the majority controls the board and refuses to buy you out, you can be left holding shares that pay nothing and cannot be sold.

The wording of the test points to fairness, not only to whether a rule in a document was followed. That is why the details of how you were treated, and what you reasonably expected, tend to matter so much.

What you need to show

The Supreme Court of Canada has set out a two-part test, often called the BCE test. You must show that you had a reasonable expectation and that it was breached, and that the conduct was oppressive, unfairly prejudicial or unfairly disregarded your interests.

In plain terms, the court asks what a person in your position could fairly have expected, and then whether what happened went against that expectation in a way that was unfair. Evidence of expectations can come from many places, so gather it early:

How a buyout can come out of a claim

A buyout is not automatic. What a court orders depends on the conduct found and the facts of the company. A lawyer can explain the orders that may be available in your situation.

An Ontario Court of Appeal decision shows how this can look. The court upheld a finding that refusing to redeem a terminated shareholder's shares was oppressive, and it upheld an equitable damages award based on a trial valuation set between two experts' figures of $20.8 million and $52.8 million.

That example shows two practical points. Share value is often disputed, and the court may have to decide it. Expect valuation evidence to be a major part of any claim that ends in a payment for your shares.

Another Ontario Court of Appeal decision, Bimman v. Neiman, 2017 ONCA 264, is a buyout valuation case. It deals with the valuation date and with the use of a later sale price when valuing shares.

Questions like these can change the number a court arrives at. The date used for valuing your shares, and any later sale of the company or its shares, are worth raising with a lawyer early, because how they apply depends on your facts.

Practical points before you start

IssueWhy it matters
Your agreementIt may already set a buyout process or valuation method that affects your options
Your evidenceThe test turns on expectations and unfair conduct, so records are important
ValuationDisputed values are common, and each side may rely on an expert
TimingActing promptly keeps evidence fresh; a lawyer can advise on any deadlines

Court claims can be costly and slow, and relations with the other owners can suffer. Many disputes are resolved by negotiation, so a clear picture of your position helps in either route.

What to do next

Frequently asked questions

Who can bring an oppression claim?

The remedy is in OBCA s. 248, and the BCE test looks at the complainant's reasonable expectations and interests. Whether you are able to bring a claim depends on your position and the facts, so it is worth confirming with a lawyer. Gathering your shareholder records early will help that conversation.

Will the court order the company to buy my shares?

Not necessarily. The court decides based on what it finds happened. In one Ontario case, refusal to redeem a terminated shareholder's shares was found oppressive and damages were awarded based on a valuation.

Is being outvoted the same as oppression?

No. Losing a vote on its own is not enough. The test asks whether you had a reasonable expectation that was breached and whether the conduct was oppressive, unfairly prejudicial or unfairly disregarded your interests.

Who decides what my shares are worth?

If the parties cannot agree, the court may have to decide, often after hearing from valuation experts. In one case the court set a value between two experts' figures.

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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