What Ontario Business Owners Should Check Before Suing For Breach Of Contract
April 22, 2026
BY: IAN ANDREW LAW
A lawsuit can feel like the natural next step when a contract has clearly gone wrong. But issuing a claim is not just a decision about principle. It is a decision about contract language, evidence, remedy, cost, timing, and recoverability.
That is why the better question is rarely just, “Did they breach?” It is closer to, “What does this claim look like after a serious legal review of the contract, the documents, the remedy, and the defendant’s practical ability to answer it?”
KEY TAKEAWAYS:
• A possible breach is only the start of the analysis.
• The contract, the documents, and the remedy objective all need to line up.
• Jurisdiction, arbitration, limitation, and liability caps can change the file quickly.
• Damages and collectability matter as much as liability.
• Dood early review often changes whether a claim should be commenced, negotiated, or reframed.
Check The Contract First
Before a claim is issued, the agreement should be read in full. The disputed clause matters, but so do the adjacent clauses and the process provisions. Governing law, arbitration terms, notice requirements, the basic two-year limitation period and discoverability issues, limitation of liability language, exclusivity provisions, conditions precedent, and remedy language can all affect whether a lawsuit is the right first move.
Many disputes look cleaner before the contract is reread than after.
Check The Proof, Not Just The Story
A plaintiff still needs a provable case. What documents establish the obligation? What documents show a breach? What documents support the claimed loss? Are there bad internal records that complicate the theory? Has mitigation been documented? A strong narrative unsupported by the record usually weakens under scrutiny rather than improves.
This is where early realism creates value.
Check The Economics
The commercial side matters too. Is the defendant collectible? Is urgent relief needed? Is the relationship still valuable enough that litigation may damage a better business solution? Does the likely cost of litigation make sense relative to the realistic recovery, especially if the contract caps certain damages? These are not side questions. They are part of competent early decision-making.
In some cases, they materially change the route forward.
Check Timing And Process
Ontario limitation law and contractual time bars can affect urgency. So can arbitration clauses or mandatory pre-suit steps. A claim that looks ready in business terms may not be ready in legal process terms, and the reverse can also be true.
Suing for breach of contract can be the right move. The stronger files are usually the ones in which the decision was made after a disciplined review of the contract, the evidence, and the claim's commercial value.
SOURCES
• Sattva Capital Corp. v. Creston Moly Corp., 2014 SCC 53.
• Limitations Act, 2002, S.O. 2002, c. 24, Sched. B, ss. 4, 5.
• Arbitration Act, 1991, S.O. 1991, c. 17.
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.