Formal notice in France (mise en demeure)

The formal notice (mise en demeure) is the most widely used – and most widely misused – pre-litigation tool in French civil law. Overhauled by Ordinance No. 2016-131 of 10 February 2016, it is codified at Articles 1344 to 1345-3 of the Civil Code and underpins much of contractual litigation: default interest, termination, loan acceleration, transfer of risk, starting point of damages. Properly drafted, it resolves the dispute before it reaches a court; poorly drafted, it is legally sterile and the creditor must start again, often too late.

Defining the formal notice

The formal notice is a unilateral legal act by which a creditor demands that a debtor perform their obligation. It is not a procedural act within the meaning of Articles 648 et seq. of the Code of Civil Procedure (Cass. 1re civ., 20 January 2021, No. 19-20.680). It precedes litigation – it prepares it, sometimes renders it unnecessary, and conditions certain of its effects.

Three characteristics structure its regime. It is interpellative: it must enable the recipient “to understand the nature, cause, and extent of their obligation” (Cass. 2e civ., 17 March 2022, No. 20-18.056). A vague letter mentioning an unpaid sum without specifying the basis or amount is not a formal notice. It is receptive: it exists legally only from the moment it reaches its recipient. It is comminatory: the announcement of a sanction for non-performance distinguishes it from a simple reminder.

A formal notice is neither a sommation (an act served by an enforcement officer, in regulated form), nor a payment order (commandement de payer – a pre-seizure act), nor a simple commercial reminder. It is the general-law act by which a creditor establishes a date to trigger contractual and statutory sanctions.

It is also not, by itself, a prior amicable resolution attempt within the meaning of Article 750-1 of the Code of Civil Procedure. A creditor who merely sends a formal notice before issuing proceedings for a claim below EUR 5,000 will see the writ declared inadmissible: Article 750-1 requires a genuine conciliation, mediation, or participatory procedure attempt.

Articles 1344 to 1345-3 of the Civil Code

Article 1344 lists three admissible forms: summons by enforcement officer, act bearing sufficient interpellation (registered letter with acknowledgement of receipt is the most common), or a contractual clause providing that the mere enforceability of the obligation places the debtor in default automatically.

Articles 1344-1 and 1344-2 describe the automatic effects. The first triggers default interest at the statutory rate on monetary obligations, without the creditor needing to prove loss. The second transfers to the debtor the risk of the thing to be delivered but not yet delivered.

Articles 1345 to 1345-3 organise, in mirror, the debtor’s formal notice to the creditor. Where a debtor offers to perform and the creditor refuses, the debtor may interpellate and, after two months, consign the sum or sequester the thing, thereby obtaining release.

Admissible forms: registered letter, enforcement officer, email

Registered letter with acknowledgement of receipt (LRAR)

The majority route. Its primary advantage is evidential: the signed acknowledgement establishes the date of receipt. The Cour de cassation held on 11 January 2023 (No. 21-23.957) that failure to physically collect the letter does not affect validity: the relevant date is presentation, not delivery. A bad-faith debtor who avoids collecting their mail does not escape the formal notice’s effects.

Summons by enforcement officer (commissaire de justice)

More costly (EUR 100-200) but with two decisive advantages: the evidential force of the official report (proof until proved false), and the psychological impact of an officer’s intervention.

Email

Admissible where the act is identifiable, dated, and receipt can be established. An automatic read receipt, a qualified electronic registered service, or delivery confirmation suffices. Recommended for initial demands and established B2B relationships; inadvisable for high-stakes disputes without a postal or officer backup.

Mandatory content

The formal notice must allow the recipient to understand the nature, cause, and extent of the obligation. Mandatory content:

• Complete identification of sender and recipient
• Date (determines the starting point of legal effects)
• Exact basis of the claim: contract number, invoice, delivery date, breached clause
• Exact amount due (principal and accessories) or the performance expected
• Reasonable time limit for performance
• Express mention of the termination clause if the creditor intends to rely on one (Article 1225, paragraph 2 – the clause must be specifically referred to, on pain of ineffectiveness)

Recommended additions: the words “formal notice” (mise en demeure) explicitly stated; announcement of sanctions for non-performance; signature.

The special case of the termination clause

Article 1225 provides that a contractual termination clause (clause resolutoire) takes effect only if the prior formal notice expressly mentions the clause. A creditor who invokes “automatic termination” without reproducing the contractual clause risks judicial invalidation of the termination.

For unilateral termination at the creditor’s risk (Article 1226 – termination without a clause, in cases of sufficiently serious breach), the formal notice must expressly state “that failing performance, the creditor will be entitled to terminate the contract.”

What time limit to allow

Article 1231 requires a reasonable time limit. This is not fixed by statute: it is assessed in concreto. Benchmarks from practice:

• 8 days: commercial B2B claims, urgency, established professional relationships
• 15 days: defensive standard; no court would consider this unreasonably short except in special circumstances
• 30 days: consumer or credit matters, where European and domestic case law has been particularly demanding
• 1 month minimum: commercial lease payment demand (Article L. 145-41 Commercial Code, mandatory)

In mortgage credit, the Cour de cassation has held (22 March 2023, No. 21-16.044) that a clause permitting loan acceleration after a formal notice with an unreasonably short time limit is unfair (abusive). The lesson is clear: a notice period that is too short vitiates the act and renders the sanction unenforceable.

Automatic legal effects

Default interest at the statutory rate

Article 1344-1: “Putting the debtor in default to pay a monetary obligation triggers default interest at the statutory rate, without the creditor having to prove loss.” This effect is limited to pecuniary obligations. The statutory rate is set semi-annually by the Banque de France, with a higher rate for debts owed by individuals than for those owed by professionals.

Transfer of risk

Article 1344-2: the risk of the thing passes to the debtor from the formal notice. If a seller, put in formal notice to deliver, sees the asset destroyed by force majeure between the notice and delivery, they can no longer shelter behind force majeure. They must either return the price or pay equivalent damages.

Other effects

The formal notice also constitutes the starting point for certain damages (Article 1231-6 extending to all contractual obligations), triggers the right to seek judicial or unilateral termination, and is a precondition for loan acceleration (see the loan acceleration guide).

Dispensation from formal notice

Certain situations dispense with the requirement: the obligation that can only be performed within a specific time (Article 1344, in fine), the obligation to refrain from acting (the breach itself constitutes the default), and a contractual clause expressly providing for automatic default upon enforceability. Such clauses are subject to fairness control under consumer law.

The formal notice by the debtor to the creditor

Articles 1345 to 1345-3 organise the rarely studied but highly useful mirror mechanism. Where a debtor tenders performance and the creditor refuses, the debtor may put the creditor in formal notice. After two months without response, the debtor may: consign the sum with the Caisse des depots et consignations (which releases them from the obligation), or place the thing in the hands of a sequestrator. This mechanism is invaluable where a creditor refuses payment in order to maintain pressure or accumulate interest.