When a contract breaks down, the immediate aftermath can feel disorienting. You might find yourself staring at an email from a supplier who has just informed you that they cannot deliver the materials you need for a project already underway, or perhaps you have opened a letter from a client announcing they will not be paying the final invoice despite your complete performance of the agreed work. In these moments, the emotional response is often to react quickly, whether through an angry phone call, an immediate threat of legal action, or conversely, a resigned acceptance that nothing can be done. None of these reactions serves your interests. What you do in the hours and days following a breach of contract can dramatically affect your ability to recover damages, preserve business relationships where salvageable, and protect yourself from counterclaims. This lesson provides you with a practical framework for responding to breach situations, drawing together the principles you have learned throughout this course and translating them into concrete actions you can take as a Canadian business owner, sole proprietor, or non-profit operator.
Understanding why immediate action matters requires appreciating how Canadian contract law treats the duties of both parties when a breach occurs. Across all common law provinces, including British Columbia, Alberta, Saskatchewan, Ontario, and the other provinces following the English common law tradition, the innocent party to a breach carries an obligation to mitigate their losses. This means you cannot simply sit back and allow damages to accumulate when reasonable steps could reduce or avoid those losses. The duty to mitigate is not optional, and failing to fulfill it can result in a court reducing any damages you might otherwise recover by the amount that proper mitigation would have saved. In Quebec, while the legal framework operates under the Civil Code of Quebec rather than common law principles, a similar obligation exists. Article 1479 of the Civil Code of Quebec, as of the date of authorship, establishes that a person who is injured by the fault of another must take reasonable steps to minimize the injury. Whether you operate in Halifax or Montreal, in Edmonton or Ottawa, this fundamental principle shapes what you must do when facing a breach.