Since 1 January 2026, French naturalisation requires level B2 in spoken and written French, and service-public.fr lists exactly two language tests that can prove it: the TCF and the TEF, each with a result less than two years old. The same two tests are the only ones recognised for a first residence card (B1) and a first multi-year residence permit (A2). So "which one is better?" has a simple answer. The real decision is not TCF against TEF. It is which version of either one your file needs.
Does the French administration prefer the TCF or the TEF?
No. For nationality and residence files, the administration treats them as equivalent: same levels, same two-year validity, same weight in your file. The TCF is run by France Éducation international, a public body. The TEF is run by the Paris Île-de-France Chamber of Commerce and Industry. Both appear side by side on the official service-public.fr pages.
What the two pages require, in short:
- Naturalisation: B2, spoken and written, with a TCF or TEF certificate issued less than two years ago (or a qualifying diploma)
- First residence card (carte de résident): B1
- First multi-year permit (carte de séjour pluriannuelle): A2
- Format condition: for residence files, the test must cover listening, reading, speaking and writing as separate papers, taken in person in a single session
That last point is the trap. A general-purpose TCF or TEF does not automatically meet it, which is exactly why each exam exists in a dedicated version.
Which version of the exam do you actually need?
Book the version named after your procedure: IRN for France, Canada for Canadian immigration. IRN stands for intégration, résidence et nationalité. The Canada versions are separate products built for Immigration, Refugees and Citizenship Canada.
| Your file | What to book | Required level |
|---|---|---|
| French nationality | TCF IRN or TEF IRN | B2, spoken and written |
| First French residence card | TCF IRN or TEF IRN | B1 |
| First multi-year French permit | TCF IRN or TEF IRN | A2 |
| Canada, Express Entry | TCF Canada or TEF Canada | Set by your programme |
| University, job, personal goal | The general TCF or TEF, or a diploma | Set by the institution |
Canada lists both TEF Canada and TCF Canada as approved French tests for Express Entry, with results that must be less than two years old when you create your profile and when you apply. Québec runs its own immigration programmes with their own rules, so check the Québec government's page if your file goes through Québec.
The costly mistake is not picking the "wrong" exam. It is passing the general version and then finding the préfecture will not accept it. Before you pay, check the exact test name on your booking.
If both are accepted, how do you choose between TCF and TEF?
Choose on logistics first, format second: the nearest centre with a session that fits your deadline, then the format that suits how you work under pressure. Since the administration does not prefer one, what differs is practical:
- When is the next session? A session in three weeks beats a "better" exam in three months if your file has a deadline.
- Where is the centre? The test is taken in person, and a given city may offer only one of the two.
- When will you submit? Results must be less than two years old. Sit the exam too early and you may have to sit it again.
- Which format feels natural? Try an official sample paper of each. On the TEF IRN, the operator describes four compulsory papers (reading, listening, writing and speaking), all in the same session. If one exam's question style throws you, that is a reason to pick the other.
A phrase worth knowing when you call a test centre:
- Je voudrais m'inscrire au TCF IRN pour un dossier de naturalisation. (I would like to register for the TCF IRN for a naturalisation file.)
- Quelle est la date de la prochaine session ? (When is the next session?)
- Sous quel délai les résultats sont-ils disponibles ? (How long until the results are available?)
Does preparation for one work for the other?
Mostly, yes. Both measure the same four skills against the same CEFR levels, so the work that raises your level raises it for both. What does not transfer perfectly is the format: the timing, the question types and the shape of the speaking tasks.
That means a sensible plan has two layers. Most of your time goes into the skill that is furthest from the level your file needs, usually speaking or writing for B2 candidates. Then, in the final weeks, you switch to timed practice on the exact exam you booked, so nothing on the day is a surprise. Our TCF IRN guide covers that second layer in detail.
| Common belief | What is true |
|---|---|
| "The TEF is easier" | Neither is officially easier, both map to the same levels |
| "Any TCF will do" | France requires the IRN version for these files |
| "My result lasts forever" | Under two years for nationality and residence |
| "I can choose later" | Choose before you prepare the format, not the day before |
Conclusion
TCF or TEF is a logistics decision once you know which version your file needs, and the level target is what deserves your energy. If you are aiming at B1 for a residence card or B2 for nationality, Yann is a certified French teacher who prepares adults for exactly these files, with timed speaking and writing practice against the official levels. Your first lesson at frenchwithyann.com is free, and it is enough to tell you how far you are from the level your file requires.
Common questions
Is the TEF easier than the TCF?
Neither is officially easier. Both are scored against the same CEFR levels and the administration treats them as equivalent. Candidates often feel one suits them better, which is why a mock paper of each is worth doing before you book.
Can I use a TEF Canada result for French nationality?
Do not count on it. The French administration lists the TCF and the TEF in their integration, residence and nationality versions, so book the IRN version for a French file and the Canada version for a Canadian one.
How long is a TCF or TEF result valid?
For French nationality and residence files, the result must be less than two years old. Canada's Express Entry also requires results less than two years old, so time the exam close to when you will submit.
Sources
- service-public.fr, Nationalité française : comment justifier de son niveau en français ?
- service-public.fr, Carte de résident et carte de séjour pluriannuelle : comment justifier de votre connaissance du français ?
- Le français des affaires (CCI Paris Île-de-France), Your TEF IRN journey
- Canada.ca, Express Entry: Language test results