French Citizenship Processing Time

You have submitted your dossier on the NATALI portal, received your recepisse, and now begins the part nobody prepares you for: the silence. Your application enters what feels like a black box, and depending on where you live in France, it could be eight months or twenty-four months before you hear back. Understanding the actual timeline — not the legal maximum, but what real applicants experience in 2026 — is the difference between patient confidence and corrosive anxiety.

Here is how the process unfolds, how long each stage takes, and what you can do to avoid being the person who waits two years because of a preventable error.

The Six Stages and Their Typical Duration

The naturalization-by-decree process has six distinct phases. Each has its own timeline, and delays in one stage cascade into the next.

Stage 1: Digital submission and completeness review (1-3 months)

After uploading your documents on NATALI, the prefecture reviews them for completeness. If anything is missing or expired, they issue a "demande de completude" — a request for additional documents. You have two months to respond. If you miss this deadline, the file is classified "sans suite" (dismissed) and you lose your 255-euro stamp.

This stage moves fast if your dossier is airtight. It stalls badly if your birth certificate expired during the upload process or if a sworn translation is missing.

Stage 2: Interview scheduling (1-4 months)

Once your file is complete, the prefecture schedules your assimilation interview. In Ile-de-France, this wait alone can be three to four months due to volume. In less populated departments, you might get a slot within four to six weeks.

Stage 3: Local police inquiry (concurrent, 1-3 months)

Simultaneously with or after the interview, local police conduct a character investigation. They verify your address, check for any unreported legal issues, and sometimes interview neighbors. This runs in the background and rarely causes direct delays unless something flags.

Stage 4: Prefecture opinion and transmission (1-2 months)

The prefect reviews your complete file — dossier, interview report, police inquiry — and issues either a favorable or unfavorable opinion. Favorable files are transmitted to the SDANF (Sous-Direction de l'Acces a la Nationalite Francaise) in Nantes. Unfavorable files result in immediate notification of refusal or deferral.

Stage 5: Ministerial review at SDANF Nantes (4-10 months)

This is typically the longest single stage. The Ministry of the Interior conducts its own review of the file. In busy periods, files sit in queue at Nantes for months before an agent picks them up. There is minimal transparency here — the NATALI portal shows your file is "en cours d'instruction au niveau ministeriel" and nothing else.

Stage 6: Decree publication and ceremony (1-2 months)

If approved, your name appears in the Journal Officiel (published every two weeks). After publication, the prefecture invites you to a welcome ceremony where you receive your naturalization decree, sign the Charter of Rights and Duties, and can immediately apply for a CNI and passport.

Regional Processing Times in 2026

Where you live determines how long you wait. This is not a minor difference — it can mean a year's variation.

The statutory legal maximum is 18 months from recepisse issuance. This is reduced to 12 months if you have lived in France for over 10 years. However, the administration frequently exceeds these limits — and your only recourse is a "mise en demeure" letter warning the prefecture you will file a legal challenge for administrative silence. In practice, most applicants prefer to wait rather than antagonize the very people deciding their fate.

What Causes Delays (and How to Avoid Them)

Expired documents: The most common preventable delay. Birth certificates from many countries are only valid for 3-6 months in the eyes of French administration. If your file takes six months to reach the completeness review and your birth certificate has expired by then, you will be asked to provide a fresh one — adding weeks or months while you get a new document, new apostille, and new sworn translation.

Strategy: Time your birth certificate request to arrive no more than one month before you submit. Better yet, order two copies.

Missing tax compliance certificate (P237): Many applicants forget this document or do not know it exists. The Bordereau de situation fiscale P237 proves you are current on all taxes. If you have an unpaid parking fine or a late taxe d'habitation payment from three years ago, it will show up here.

Strategy: Request your P237 from your Service des Impots des Particuliers at least three months before filing. Clear any outstanding debts first.

Language certificate expiration: TCF and TEF certificates are valid for only two years. If your exam was 18 months before filing and processing takes 12 months, it may expire mid-process. Some prefectures accept a certificate valid at the time of submission; others want it valid at the time of decision.

Strategy: If your timeline looks tight, invest in the DELF B2 instead — it has lifetime validity.

Prefecture backlog: You cannot control this. But you can choose your filing address strategically. If you recently moved from Paris to a smaller city, waiting until your new address is established before filing could shave months off your total processing time.

Tracking Your Application

The NATALI portal shows a 13-step progress bar, but it does not send automatic notifications at every stage. You need to log in periodically to check for status changes or document requests.

Key things to track:

• Prefectural reference number (format: 2026X 045...): assigned at submission
• Ministerial REZE number: assigned when the file reaches SDANF Nantes. This number lets you estimate where you are in the publication queue.
• Journal Officiel publication: check legifrance.gouv.fr every two weeks for naturalization decrees

The Citizen Contact Centre (0 806 001 620) can provide status updates, but their information is often a few weeks behind the actual file movement.

The Marriage Declaration Timeline

If you are filing through the marriage pathway rather than naturalization by decree, the timeline is generally shorter because there is no ministerial review in Nantes for straightforward cases. Typical total: 12-18 months. The prefecture has a legal maximum of 12 months to respond.

However, if the prefecture suspects a mariage blanc and launches a deeper investigation (enquete complementaire), this can add 6-12 months.

What You Can Do While Waiting

The wait is long but not wasted. Once your file is in process:

• Do not change jobs if possible (a new CDI resets the "stability" clock in the agent's eyes)
• Do not leave France for extended periods (absences can raise questions)
• Keep paying taxes on time — the administration can pull fresh records at any point
• Maintain your social activities and association memberships (these may come up in follow-up inquiries)

Our France Citizenship Guide includes a timeline tracker worksheet calibrated to your department, a document expiry calculator, and milestone notification templates so you know exactly when to check in and what to do if the statutory deadline passes.

See more France guides →