How to write a formal letter in French for the TCF/TEF Canada

When the TCF Canada writing paper asks you for a letter, it is not a French test with a letter attached. It is a letter test that happens to be in French, and the difference matters, because the first thing the marker checks is whether you wrote to the person the instruction named, for the reason it gave. Get the formal letter shape wrong and the language underneath it barely counts.

A formal letter is the single most predictable shape the TCF Canada expression écrite hands you, because the instruction so often puts you in front of an institution: a landlord, an employer, a town hall, a company. Learn its moves cold and you free up all your attention for the argument.

One scoping warning before you apply any of this to the TEF. Everything below is written for the TCF Canada. Le Français des affaires states that the TEF Canada expression écrite does not require formal-letter presentation at all: no header, no address block, and no closing politeness formula. Section A asks you to continue a factual news item in its own register, and Section B asks you to take a position and defend it. Neither is a letter. Spending your Section B word count on Madame, Monsieur, and je vous prie d’agréer buys you nothing there, and the board is equally explicit that all-purpose introductions and conclusions earn no credit. Use this page for the TCF; for the TEF, put the same effort into the argument itself.

When does the exam actually want a formal letter?

You know it is formal the moment the instruction names a recipient with a status rather than a first name. A syndic, a directeur, a maire, a service client all demand vouvoiement and a full politeness frame. A friend, a cousin or a colleague you are on first-name terms with does not. That status line is not decoration; it is the hook of the sociolinguistic criterion, and it decides your register from the first word to the last.

Decide tu or vous before you write a single sentence, and never drift. One stray tu in a letter to a director is visible from a metre away, and it is the easiest mark to lose because it has nothing to do with how good your French is.

How do you open a formal letter in French?

A formal opening has two parts most candidates collapse into one. First the formule d’appel: Madame, Monsieur, when you do not know who will read it, or Madame la Directrice, when the instruction names the role. Then the first sentence states your business in one line, the way the strong version of any exam text does.

Weak openings announce that they are about to speak. Je vous écris pour vous parler d’un problème important tells the reader nothing. A strong opening already speaks: Je me permets de vous écrire au sujet des travaux de l’immeuble, dont les horaires rendent le télétravail impossible. Subject, situation and problem arrive in the same sentence, and the reader knows in one line what the letter is for.

Useful opening verbs to have ready: je me permets de vous écrire, je souhaite vous faire part de, je me permets de solliciter. Each is neutral, formal and does the job the first mark depends on.

What politeness formula should you close with?

The closing is where anglophones either overthink or underthink. There is a small set of safe formulas, and one of them fits almost any exam letter. The rule is simple: the closing must live in the same world as the opening, and it must repeat the formule d’appel inside it.

Two things to remember. The formule d’appel must reappear exactly inside the long closing, so if you opened with Madame, Monsieur, you cannot close with Madame la Directrice. And Cordialement, which anglophones reach for by instinct from email, is too light for a full formal letter; keep it for a semi-formal note to a colleague.

Which structure earns the marks?

Between the opening and the closing, a formal letter is just a short, well-signposted argument. The shape that works:

• Objet. One short line naming the subject, if the format allows it: Objet: demande d’aménagement des horaires de travaux.
• The situation. Who you are relative to the recipient and what the facts are, in order, with one concrete detail rather than a vague complaint.
• The reason it matters. Why this is a problem, argued rather than asserted, using a connector that names a real relation: en effet, dans la mesure où, c’est pourquoi.
• The request. Exactly what you want the recipient to do, and by when if relevant. A letter with no clear demand reads as incomplete.

One idea per paragraph, a blank line between them, so the structure is visible before it is read. This is the same discipline the TCF Canada course drills in the marked writing tiers, because structure is one of the few things a candidate can control completely.

What mistakes drop a formal letter to a middle band?

The register slips are the expensive ones. Contractions of tone like c’est vraiment n’importe quoi belong to speech, not to a letter to a company; the formal version is cette situation me paraît difficilement acceptable. Reaching for English politeness patterns is another: j’espère que vous allez bien to open a complaint sounds odd to a French reader, who expects you to get to the point.

Watch your word count, which is public, precise and eliminatory in a way nothing else in the marking is. Land in the upper middle of the range, not on the boundary, and confirm the exact ranges for your task on france-education-international.fr (TCF) or lefrancaisdesaffaires.fr (TEF), since they can change. Draft the body against the word counter so the count is a fact, not a guess, and so you never spend the last minutes recopying instead of finishing.

The formulas above are worth memorising precisely because they are automatic on the day. The mark is not in the closing; it is in the argument. But a candidate who has to invent the frame under the clock writes a worse argument, every time.