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General Legal Information — JusticePourtous provides general legal information based on current Swiss law. This service does not replace personalized legal advice from an attorney.

Practical Guide

I want to keep two nationalities

Switzerland has permitted dual nationality since 1992. A Swiss citizen who acquires a foreign nationality does not lose Swiss nationality (art. 7 LN). Conversely, a foreigner who becomes naturalized as Swiss is not required to renounce his or her nationality of origin — this depends on the law of the other country.…

Verified sources as of 2026-04-07.

# Applicable Law Articles (Note: The text provided contains only a heading/title without substantive content to translate. The section "Articles de loi applicables" translates to "Applicable Law Articles" or "Applicable Legal Provisions.")

Critical deadlines

  1. Verification of the rules in the two Statesimmediate
  2. Announcement to the civil registry officein the 30 days (LN 7 / Cst. 37)
  3. Update of documents60 to 90 days
  4. Appeal to the competent authorityaccording to applicable national law (Federal Constitution art. 37 / possible bilateral agreement)

Keywords

double nationality binational obligation military

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