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Published on 1 July 2026

Language requirements

Knowledge of a national language is a basic requirement for the successful integration into working and social life.

All persons applying for family reunification, a residence or permanent residence permit, or regular or early naturalisation must prove their knowledge of a national language. The required language level, which is based on a phased model and differentiates between oral and written language proficiency, is a minimum requirement. Further information can be obtained from the cantonal migration authorities.

SEM publishes the list of recognised language certificates. The list is regularly updated and indicates which language certificates are valid for proof of language proficiency in naturalisation and immigration proceedings.