Civil law and business sales in Quebec: what is different

Every other province and territory in Canada operates under common law, a system built primarily on judicial precedent — courts deciding cases and those decisions guiding how future disputes are resolved. Quebec is the exception. Quebec operates under civil law, codified comprehensively in the Civil Code of Québec, which sets out the rules governing contracts, property, obligations and much of private law directly in the code itself rather than leaving them to accumulate through case-by-case court decisions. This is the single most important thing to understand before buying or selling a business in Quebec, because it means the legal reasoning underneath the transaction works differently, not just the vocabulary.

A code, not a body of precedent

In a common law province, a lawyer answering a question about, say, whether a lease can be assigned will often reason from a chain of prior court decisions interpreting similar leases and similar facts. In Quebec, a notary or lawyer starts from the Civil Code’s own provisions and reasons from the code’s text and structure. Court decisions still matter in Quebec, but the code itself is the primary source, not a summary of accumulated case law. This changes how confidently a general answer can be given — a common law lawyer might reasonably generalize from a pattern of cases, while a civil law answer depends more directly on the code’s specific wording, which is exactly why this page avoids stating Quebec-specific rules with a precision it cannot actually support.

Contracts are read differently

The Civil Code codifies obligations that common law provinces handle through separate doctrines, case law, or sometimes not at all — including an explicit, ongoing duty of good faith that runs through the life of a contract, not just its formation. A purchase agreement, a representation and warranty, a restrictive covenant — the documents at the centre of any business sale — need to be drafted or reviewed with the Civil Code’s own contract principles in mind. A common law purchase agreement translated into French is not a Quebec-compliant purchase agreement; it needs to be built, or at minimum reviewed, from the Civil Code side.

Security over assets is a different device entirely

Where common law provinces use mortgages, charges and security interests registered under provincial personal property security legislation, Quebec uses the hypothec — the Civil Code’s own security device — which does not operate as a simple renamed equivalent. Financing a Quebec acquisition, or taking security over a Quebec business’s assets, requires a Quebec lawyer or notary to structure it correctly from the outset; adapting a common law security agreement is not a safe shortcut.

The notary’s role has no common law equivalent

Quebec notaries are legal professionals with the authority to prepare authentic acts — documents carrying a special evidentiary status under the Civil Code — and they play a central role in property and certain security transactions that has no real parallel in how lawyers alone operate in common law provinces. Whether your specific transaction needs a notary, and for which parts of it, is a question to ask early rather than assume your way through.

• Do not adapt a common law purchase agreement for a Quebec deal without Civil Code review
• Confirm whether a notary needs to be part of your transaction team
• Have security and financing arrangements structured under the hypothec regime directly
• Search Quebec’s own registers rather than assuming a common law search covers the same ground
• Treat any Quebec-specific rule you are not certain of as a question for Quebec counsel, not an assumption

Where federal rules still apply the same way

None of this changes the pieces of a business sale that are federal rather than provincial. GST rules and the capital gains framework, including the lifetime capital gains exemption where shares qualify, apply in Quebec exactly as they do in every other province, because they come from federal legislation with no provincial variation. The civil law difference sits specifically in the provincial layer — contracts, property, security, much of employment law — not in the federal tax and financing rules layered on top of any Canadian business sale.

Why this page will not go further than it has

A page written for a general audience cannot responsibly state specific Civil Code article numbers, precise procedural deadlines, or the exact scope of a notary’s required involvement in your particular transaction, because getting a civil law specific wrong is worse than saying nothing at all. Where this guide has described a Quebec rule, it has stayed at the level of what genuinely differs and why it matters, and left the specific application to the people trained to give it: a Quebec notary or a Quebec lawyer.