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In brief
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Duration: Response no later than 18 months after receipt, or 12 months after at least 10 years of residence; extension of 3 months is possible
Cost: Tax stamp 255 € (127,50 € in French Guiana); tests, translations and legalizations in addition
Possible online

Who this guide is for

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  • Major foreigners considering naturalization by decree
  • Residents who must verify the five-year period or a legal exception
  • Candidates preparing the B2 level, the civic examination and their administrative records

To be prepared in advance

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  • Valid residence permit, unless not required
  • Civil status, residence, resources, employment and taxation documents
  • Accepted justification for a level of French B2
  • Certification of civic exam success
  • Foreign court case when requested according to your path
  • Tax stamp of 255 € at the stage indicated by the official procedure

Step-by-step procedure

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  1. 1Check the conditions. The general length of residence is five years, but some cases benefit from a lack of minimum duration or a reduction to two years. Marriage with a Frenchman is a separate procedure by declaration.
  2. 2Check the centre of your interests in France, the regularity of the stay, the professional integration, the resources and the absence of incompatible convictions.
  3. 3Justify an oral and written French B2 and pass the civic exam. For naturalisation by decree, the formal examination adds to the interview in prefecture.
  4. 4Gather the pieces indicated by the personalized list of the teleservice. The deposit is normally made online; the mail is reserved for the situations foreseen or for a justified impossibility of using the service.
  5. 5Set the €255 tax stamp (€127.50 in French Guiana). No private intermediary can guarantee a favourable decision.
  6. 6Follow your space, respond to additional requests and report any change of address, family or professional status.
  7. 7Present yourself to the interview with the originals. The administration controls the assimilation, consistency of the file and adherence to the principles of the Republic.
  8. 8The maximum period is from receipt: 18 months, or 12 months if you justify at least ten years of habitual residence; a reasoned extension of three months is possible only once.

Common mistakes

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  • Naturalization by decree and declaration of nationality by marriage
  • Prepare a B1 level instead of the current B2 level
  • To believe that the interview replaces the formal civic examination
  • Use the old amount of 55 € instead of 255 €
  • Paying an intermediary that promises a guaranteed result
  • Do not update the file after a change of job, family or address

Official sources

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Show sources in this section

Useful links

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Important remark

Naturalization remains an individual administrative decision. Duration exceptions, parts, exemptions, and the method of filing depend on the situation; use the custom list of the official teleservice.

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