Wrongful Termination Risk In Ontario Commercial Contracts
April 22, 2026
BY: IAN ANDREW LAW
Sometimes the issue is not whether a business wants to end the contract. It is whether the business can do so without creating a new lawsuit in the process.
That is the wrongful-termination lens. In Ontario commercial disputes, an exit that feels commercially justified can still be legally defective if the contract, the notice sequence, or the surrounding conduct does not support it.
Key Takeaways
• Wrongful termination risk often turns on mechanics, not just merits.
• Notice, cure, and default language often decide whether termination is valid.
• Good faith can matter in how a termination right is exercised.
Start With The Termination Clause, Not The Frustration Level
The first step is usually the written agreement. Some contracts create an express right to terminate for cause, for convenience, after a material breach, after insolvency, or after a missed milestone. Others require notice, a cure period, or a particular form of default notice before the right can be exercised.
If the agreement speaks clearly, that wording usually controls the path. If it is silent or incomplete, common-law rights may still matter, but the analysis becomes more complex. Whether common-law termination is available is highly fact-specific, and not every serious performance problem rises to repudiation. A business can be commercially justified in wanting out and still be legally wrong about the mechanism.
Check What Counts As A Default
Many disputes begin because the parties do not agree on whether a triggering default even occurred. Some defaults are obvious, such as non-payment. Others are more interpretive: failure to meet a standard, delay in performance, breach of exclusivity, or refusal to co-operate.
That is why the contract needs to be read as a whole. Definitions, schedules, notice provisions, discretion language, limitation clauses, and adjacent provisions can all affect whether the breach is material enough to support termination.
Notice And Cure Periods Are Not Procedural Trivia
A contract may require written notice to a named address, delivery by a defined method, and a set number of days to cure before termination is effective. Those details are easy to dismiss when the relationship has already collapsed. They are also exactly the details courts often examine closely.
A party that had a substantive right to terminate can still create avoidable risk by exercising that right through a defective process. In commercial litigation, process failures often weaken an otherwise strong merits position.
Consider Good Faith And Contractual Discretion
Ontario contract law does not require self-sacrifice, but it does take the duty of honest performance seriously. A party exercising contractual rights still needs to avoid misleading conduct about whether the relationship will continue, whether a cure opportunity is real, or whether a decision has already been made.
Where the agreement gives one side discretion, the exercise of that discretion may also be reviewed against the purpose for which the discretion was granted. That issue becomes especially important where termination depends on evaluative language such as satisfaction, approval, or business judgment.
Map the Damage Exposure Before Pulling The Trigger
Termination is not only about whether the contract can be ended. It is also about the financial consequences if the call is challenged. The review should account for unpaid amounts, accelerated obligations, lost-profit claims, caps on liability, exclusion clauses, and any formula the contract uses to value damages.
In some files, a strong substantive complaint is outweighed by the downside risk of getting termination wrong. In others, the contract contains clear risk-allocation language that materially changes settlement leverage.
Keep The Record Disciplined
Termination files are often won or lost on the written record created before the actual notice is sent. Internal emails, draft notices, side conversations, and shifting explanations can all become part of the later dispute.
A disciplined record usually focuses on the contract, the identified defaults, the relevant dates, and the actual decision path. It is generally safer than a record full of emotion, improvisation, and mixed messages.
Termination can be a valid and commercially necessary step. The legal risk usually turns on whether the contract was read carefully, the process was followed properly, and the decision was exercised in a way the law can support.
Wrongful-termination exposure often arises not because the underlying complaint was imagined, but because the exit was executed loosely. In a stressed commercial relationship, that distinction can decide the file.
Sources
• Sattva Capital Corp. v. Creston Moly Corp., 2014 SCC 53.
• Bhasin v. Hrynew, 2014 SCC 71.
• C.M. Callow Inc. v. Zollinger, 2020 SCC 45.
• Wastech Services Ltd. v. Greater Vancouver Sewerage and Drainage District, 2021 SCC 7.
• General Ontario common-law principles respecting repudiation and wrongful termination in commercial contracts; the analysis is fact-specific and not governed by a single statute.
This article is for general information purposes only and does not constitute legal advice. Reading this article does not create a solicitor-client relationship. If you require advice specific to your situation, contact my office.