Definition

Novation

Novation is the process of substituting a new party into an existing contract in place of one of the original parties, with the consent of everyone involved, so that the original party is fully released and the new party effectively steps into the same agreement in their place. It requires agreement from all sides, not just a transfer by the departing party.

Reviewed

Novation matters most where a seller wants to be truly free of a contract going forward — a lease, a franchise agreement, a major supplier deal — rather than merely handing it off while remaining on the hook if the buyer later defaults. A landlord or franchisor’s consent to a novation typically confirms the seller is released, which a simple handover does not.

How it differs from an assignment

An assignment transfers rights and duties to a new party, but unless the other side expressly agrees to release the original party, that original party can remain liable if the new party fails to perform. Novation replaces the contract entirely with a new one involving the new party, and the original party’s obligations end.

The mistake people actually make

Using "assign" and "novate" as if they mean the same thing in a deal document. A seller who thinks their obligations under a key contract ended at closing, because the contract was "assigned" to the buyer, can discover years later that they are still exposed — because what actually happened was an assignment without a release, not a novation.

The Quebec difference

Quebec’s Civil Code codifies novation explicitly, including the rule that it is never presumed and must be clearly expressed by the parties, while common law provinces treat novation as a judge-made contract doctrine built up through case law rather than a single governing statutory provision.

Sources

This definition is checked against primary sources. Links were last confirmed on the dates shown.

  1. 01
    Treadstone LawLegal commentary
    Getting Landlord Consent to Assign a Commercial Lease in an Ontario Business Sale
    treadstonelaw.ca·Checked Aug 14, 2026
  2. 02
    Treadstone LawLegal commentary
    Anti-Assignment Clauses in Supplier Contracts
    treadstonelaw.ca·Checked Aug 14, 2026

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