Contract addendum template Quebec
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Free template to adapt to your situation: replace the sample information (names, addresses, dates, amounts, references) with your own.
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Addendum No. [__] to the [Name of Agreement]
Between: [Party 1], [legal form], [address], represented by [name, title] (“Party 1”),
And: [Party 2], [legal form], [address], represented by [name, title] (“Party 2”).
Preamble
The parties entered into a [agreement] on [date] (the “Agreement”). They wish to amend it as set out below.
1. Amendments
1.1 Section [__] of the Agreement is replaced by the following: “[new text]”.
1.2 The following section [__] is added after section [__]: “[new text]”.
1.3 Section [__] is deleted.
2. Effective date
This addendum takes effect on [date].
3. Other terms
All other provisions of the Agreement remain unchanged and in full force. In case of conflict, this addendum prevails. Capitalized terms have the meaning given in the Agreement.
Signed in [city], on [date], in duplicate. Party 1: ____________ Party 2: ____________
Free, no sign-up. Replace the sample information with your own.
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Drafting notes
- A contract may be modified only by the agreement of the parties (art. 1439 C.C.Q.); have the addendum signed by persons with authority to bind.
- Check whether the original contract requires amendments in writing or a particular form.
- Number addenda and keep them with the original agreement.
How to use this template
- Download the letter in Word or PDF with the button above.
- Adapt it to your situation: your contact information, the recipient’s, the facts, dates and amounts.
- Send it and keep a dated copy.

About the author
Sonia Pin Legal counsel, business law
Sonia Pin is a legal professional specializing in business law and commercial litigation. She drafts and updates the contract and letter templates published on Avocat Montréal, with a focus on Quebec civil law (Civil Code of Québec) and the practical requirements of the courts and administrative tribunals.