French naturalization language requirement
French naturalization now requires B2 French, not B1
Since January 2026, the language bar for French naturalization went up. Lira doesn't cover the file or the format, but it builds the B2 reading comprehension and vocabulary the TCF IRN, TEF IRN, and DELF B2 actually test.
Start for freeQuick verdict
- ✗Lira alone: doesn't cover the exam format or your file
- ✓Lira: builds B2 reading comprehension and vocabulary in context
- ✓Use alongside dedicated exam prep, not instead of it
Quick verdict
- ✗Lira alone: doesn't cover the exam format or your file
- ✓Lira: builds B2 reading comprehension and vocabulary in context
- ✓Use alongside dedicated exam prep, not instead of it
Self-check
Where are you actually stuck on your certification?
4 questions to see if your weak spot is reading comprehension or something else.
Question 1 of 4
Faced with a formal-register article or text, you...
What actually changed, and what counts as proof
Since January 1, 2026, applicants for French naturalization by decree need to prove a B2 level in French, both written and spoken. Before that date, the requirement was B1. Accepted proof includes:
- TCF IRN (Test de connaissance du français pour l'accès à la nationalité française)
- TEF IRN (Test d'évaluation de français, same purpose)
- DELF B2 or a higher diploma from the DELF/DALF suite
We're not the source to check exact eligibility, exemptions, or how the file review works, that depends on your prefecture and situation. This page only covers the language side: what B2 reading and vocabulary actually require, and how to build them.
The TCF IRN, TEF IRN, and DELF B2 all lean heavily on reading comprehension and a precise, fairly formal vocabulary, closer to news articles and administrative French than everyday conversation. Most candidates prepare the exam format (timing, question types) with a dedicated course or past papers. Fewer get repeated practice on real B2-level text, and that's usually the gap: you can memorize a handful of set phrases, but recognizing them once doesn't mean you'll understand an unfamiliar article on test day.
3 concrete ways to use Lira for the reading and vocabulary side
Read real French text at B2 register daily
Import a news article, an essay, or a public document close to what the exam tests. Tap-to-translate resolves what actually blocks comprehension instead of stopping your reading at every unfamiliar word.
Build formal vocabulary with FSRS
Administrative and news French uses a more formal register than daily conversation. Every word you look up gets scheduled for review at the right time, so it sticks by test day instead of fading a week later.
Hear the real pronunciation as you read
One click on a word plays its pronunciation. It doesn't train the oral section, but it stops you from attaching a word to a pronunciation you invented while reading silently.
What you actually use
Vocabulary you run into in your reading turns into a review card, and your progress stays visible session over session.
Vocabulary translated without leaving your reading
Your progress on formal vocabulary, at a glance
Vocabulary reviewed as a game
The science
Why a single review session isn't enough: spaced repetition (FSRS)
FSRS calculates, for every word you learn, the exact moment you're about to forget it, and resurfaces it right before that happens. Vocabulary reviewed once before the exam fades fast (the gray curve). With reviews spaced over several weeks, retention climbs in steps and stabilizes (the green curve): that's the difference between a word you vaguely recognize and one you understand instantly in an unfamiliar text, which is what a reading comprehension section actually tests.
B2 vocabulary retention over time
I used a TCF IRN prep book for the exam format, and Lira alongside it to read actual French news and essays. Reading ended up being the section I worried about least.
Amara, 34
Nobody tells you how much of the TCF is reading comprehension until you sit a practice test. I wish I'd started daily reading earlier instead of only cramming grammar rules.
David, 41
Easy to fit into a week that was already full of paperwork, without feeling like one more chore.
Wei, 29
Preparing a different certification instead?
If you're studying for the TOEFL, DELF for a reason other than naturalization, or another certification, our general certification prep page covers the wider picture, including study and work visas.
Go further
Learn a Language by Reading: The Complete Guide
How to learn a language by reading real texts: the research behind it, how much reading is enough, and a step-by-step method.
Best Books to Learn French at A2/B1 Level
Explore 8 French books suited to A2/B1 learners, from free public-domain classics to modern favorites, to build reading skills with Lira.
Start building the B2 reading comprehension the exam tests
Start today, for free, with a French text close to B2 level. Keep your TCF IRN, TEF IRN, or DELF format prep running alongside it, Lira was never meant to replace that part.
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