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Practical guides · 2026 edition

Guides to file on your own

Prepare and file your application yourself, step by step, with the EFA Conseil method. Guides written in French.

French nationality · Guide written in French

My nationality through marriage

  • By post or in person: filing methods and addresses of the 8 Île-de-France prefectures
  • The 34 supporting documents explained, to tick off
  • 50 questions and answers, 2 letter templates and 6 forms, including the official Cerfa
€29 See details Buy
Option: have your file checked before filing for €149
French nationality · Guide written in French

My nationality through a sibling

  • By post or in person: filing methods and addresses of the 8 Île-de-France prefectures
  • The 28 supporting documents explained, to tick off
  • 50 questions and answers, 2 letter templates and 3 forms, including the official Cerfa
€29 See details Buy
Option: have your file checked before filing for €149
Have you put your file together?

Have it checked by an expert before filing it

A birth certificate that is not a full copy, a mistake in a name or date, a non-compliant translation: a single error is enough to hold up a file for months. We check each of your documents before filing.

  • Full certificates or not
  • Spelling mistakes in dates or places of birth
  • Translations, apostille and legalisation
  • Documents in both spouses' names
  • Validity dates of documents
  • Missing documents for your situation

Written report, document by document (compliant, to be corrected, missing) + a re-check of your corrected documents.

€149 Order the check

Naturalisation by decree or nationality through marriage. Document check service: it does not include filing the file and does not guarantee that nationality will be granted. Service provided in French.

PDF guides written in French, instant download. Information resources: they do not replace an individual review of your situation and do not guarantee that a permit or nationality will be granted. EFA Conseil is an independent private firm, not affiliated with the administration. Terms and conditions of sale.