A Swiss passport or Identitätskarte may need a certified translation when a foreign bank, notary, registry or authority relies on it as proof of identity — to open an account, sign a notarial deed, apply for a visa, marry, or enrol at a university abroad. Conversely, a Swiss authority such as the cantonal Migrationsamt, or a bank in Switzerland, may require a certified translation of a foreign-language ID document that is not in an official Swiss language. The exact formal requirement depends on the canton, receiving body and intended use. Where certification or notarisation is required, FÜD checks the applicable form before the assignment.
The reference for every name is the machine-readable zone (MRZ) on the passport's data page, read under ICAO rules. Whatever the passport spells, the translation matches — so a bank, notary or registry never has reason to treat you as a different person. This guide explains when the translation is required, how the apostille route works, and what it costs in CHF.