Mise en Demeure in Quebec: What the Civil Code Actually Requires

A mise en demeure is a formal notice that puts a person in default of performing an obligation. In Quebec, articles 1594 to 1600 of the Civil Code of Quebec govern its effects, but the Code requires neither registered mail nor a bailiff: it requires only a writing and a reasonable delay.

Information last verified on 2026-09-24. This article has not yet been reviewed by a licensed lawyer.

This article covers Quebec's civil law of the mise en demeure (formal notice of default), as set out in articles 1594 to 1600 of the Civil Code of Quebec (CCQ). It also briefly covers its role before a small claims lawsuit in Quebec; for the full filing process before the Small Claims Division, see Small Claims in Quebec. It does not cover the rules of other Canadian provinces, which often follow a different framework for contractual default.

What a Mise En Demeure Is

"A debtor may be in default for failing to perform the obligation owing to the terms of the contract itself, when it contains a stipulation that the mere lapse of time for performing it will have that effect. A debtor may also be put in default by an extrajudicial demand to perform the obligation addressed to him by his creditor, a judicial application filed against him or the sole operation of law." (Civil Code of Quebec, art. 1594, official English text)

This passage describes the four ways a debtor can be put in default of performing an obligation toward a creditor: a contract clause that provides for it, an extrajudicial demand (this is the demand letter in the ordinary sense), the filing of a lawsuit, or the automatic operation of law. The demand letter corresponds to the second way: it is the written notice a creditor sends a debtor to demand performance of an obligation before taking the matter further.

What the Code Actually Requires: A Writing and a Reasonable Delay

Article 1595 CCQ sets out the central requirement, and it is narrower than commonly assumed:

"An extrajudicial demand by which a creditor puts his debtor in default must be made in writing. The demand must allow the debtor sufficient time for performance, having regard to the nature of the obligation and the circumstances; otherwise the debtor may perform the obligation within a reasonable time after the demand." (Civil Code of Quebec, art. 1595, official English text)

Two conditions, and only two: the demand must be in writing, and it must grant a delay sufficient given the nature of the obligation and the circumstances. The Code specifies no required delivery method and fixes no universal number of days. The Quebec government states, as practical guidance rather than a legal rule, that 10 days is normally considered a reasonable delay, but that figure is a pointer, not a floor fixed by law; an urgent obligation may call for a shorter delay, a complex one a longer delay.

The Registered Mail and Bailiff Myth

This is the most common trap surrounding the mise en demeure: many sites present registered mail or a bailiff (huissier) as a legal requirement. It is not. The Quebec government is direct on this point:

"You must send the original copy of your mise en demeure. You can use a registered mail service or retain the services of a bailiff to deliver the mise en demeure. Whichever method you choose, you may later have to prove in court that the mise en demeure actually reached its recipient. Keep proof of receipt [...]." (Government of Quebec, translated from the French)

Registered mail and a bailiff are ways to PROVE, later, that the recipient actually received the notice, not requirements article 1595 imposes. Article 1595 itself requires only a writing. The Quebec government's guidance, however, is to send the original copy by registered mail or through a bailiff, and whatever method is used, the practical risk is having to prove receipt if the dispute ends up in court.

What a Mise En Demeure Letter Should Contain

The Code sets no fixed form, but the Quebec government recommends including: the date, the recipient's identifying details, the phrase "SOUS TOUTES RÉSERVES" (in the Quebec government's words, translated from the French, "to protect you from any statement contained in the letter"), the delivery method used, the words "mise en demeure" themselves so the recipient understands the nature of the notice, a summary of the problem, the specific remedy demanded, a reasonable delay to comply, and the sender's contact details and signature.

Is It Required Before Suing in Small Claims?

Not universally, but the answer is nuanced. The Quebec government presents sending a mise en demeure as a usual step in the process, among the steps to follow to file a small claims application, while stating:

"In certain types of lawsuit, the mise en demeure is mandatory and failing to send one can cause you to lose your case. It is preferable to send a mise en demeure or consult a lawyer if you are not sure whether sending one is mandatory." (Government of Quebec, translated from the French)

The same page gives a related example: in a hidden defect (vice caché) dispute, you must notify the seller in writing that you discovered a hidden defect, within a reasonable time after discovering it, and the Quebec government states that a mise en demeure letter can be sent to the seller instead of a notice. The underlying rule is article 1739 CCQ: "A buyer who ascertains that the property is defective shall give notice in writing of the defect to the seller within a reasonable time after discovering it." (Civil Code of Quebec, art. 1739, official English text) Outside cases where the law governing your specific type of claim requires it, sending a mise en demeure remains strongly recommended rather than mandatory, for the reason explained in the next section.

Suing Without a Prior Mise En Demeure

Article 1596 CCQ covers what happens if you sue directly, without first sending a mise en demeure: filing the lawsuit itself constitutes putting the debtor in default. The debtor then gets a reasonable delay, counted from the lawsuit, to perform the obligation. If the debtor performs within that delay, the creditor, meaning the person suing, must bear the costs of the lawsuit. That is the most concrete practical incentive to send a mise en demeure first: it avoids the risk of having to pay the costs of a lawsuit that may not have been necessary.

Sending a Mise En Demeure Is Not the Same as Suing

A mise en demeure is not itself a lawsuit and does not commit you to anything further. The Quebec government confirms this directly:

"This letter gives the recipient the opportunity to fulfill their obligation to you without going to court. Sending a mise en demeure does not obligate you to sue the recipient afterward." (Government of Quebec, translated from the French)

The recipient, for their part, is also not legally required to respond to the letter or perform simply because they received it. The legal effect of the mise en demeure only truly materializes if you go on to enforce your rights, including before a court.

When Default Arises Automatically, Without a Letter

Article 1597 CCQ covers several situations where the debtor is put in default automatically, by operation of law, with no letter required: when an obligation to be performed within a specific delay essential to its usefulness was not performed within that delay; when an urgent situation was not addressed without delay; when the debtor has failed to fulfill an obligation not to do something; when the debtor's fault has made performance in kind impossible; when the debtor has clearly indicated they will not perform the obligation; or, for an obligation of successive performance, when the debtor repeatedly refuses or neglects to perform it. Article 1598 states that it is the creditor's burden to prove that one of these circumstances actually occurred, despite any declaration or stipulation to the contrary in the contract.

The Effects of Being in Default

Once the debtor is in default, whether that arose by letter, by contract, by lawsuit, or automatically, article 1600 CCQ sets out two concrete effects: where the obligation is a sum of money, the debtor, even if granted a period of grace, is liable for injury resulting from the delay from the moment of default; and the debtor is also liable, from the same moment, for any loss resulting from superior force (force majeure), unless released thereby from the obligation. Article 1599 adds that where several debtors are solidarily bound, a demand addressed to one puts all of them in default too; the same applies where several creditors are solidarily entitled.

Next Step

If the mise en demeure does not resolve the dispute within the delay given, the next step, for an eligible claim, is often the Small Claims Division of the Court of Quebec. For the filing process, deadlines, and how a hearing works, see Small Claims in Quebec and the small claims hub.

Disclaimer: This article provides general legal information about the mise en demeure under articles 1594 to 1600 of the Civil Code of Quebec, current as of September 2026. It is not legal advice. It does not cover every type of claim for which a mise en demeure would be mandatory under a specific law applicable to your situation. Consult a lawyer licensed by the Barreau du Québec for advice on your specific situation.