Can a Swiss will be written in English or only official languages?

Under Swiss inheritance law (Article 505 of the Swiss Civil Code / ZGB), there is no statutory requirement stating that a holographic will must be drafted in one of Switzerland's four official national languages (German, French, Italian, or Romansh). A will written entirely in English is formally valid and legally binding in Switzerland, provided that the testator demonstrably understands English and complies strictly with the mandatory formal requirements: it must be entirely handwritten from beginning to end, dated with the day, month, and year, and signed by hand.

However, drafting an English will while living in Switzerland presents practical hurdles during the probate procedure (Testamentseröffnung). The cantonal probate court (Bezirksgericht, Justice de paix, or Erbschaftsamt) operates in the official local language and will mandate an official sworn certified translation at the expense of the estate, typically adding CHF 300 to CHF 1,200 in administrative costs. Furthermore, mixing common law terms with the Swiss Civil Code often sparks disputes among heirs regarding interpretation.

1. Swiss Statutory Framework for Foreign-Language Wills

Article 505 of the Swiss Civil Code focuses exclusively on authenticity and mental clarity rather than linguistic origin. As long as the testator has the capacity of discernment (Art. 467 ZGB) and writes the entire document by hand, Swiss law recognizes the document. This is especially advantageous for expats and multinational families residing in Zurich, Geneva, Basel, or Zug.

Nonetheless, expats must beware of the critical distinction between typed wills and holographic wills. In Anglo-American jurisdictions, typed wills executed before two attesting witnesses are customary. In Switzerland, an ordinary typed will executed at home without a certified public notary is completely void under Art. 505 ZGB, regardless of witness signatures. Our comprehensive guide on how to make a legally valid will in Switzerland breaks down these essential rules step by step.

2. Choice of Law for Foreign Nationals (Professio Juris)

If you hold foreign citizenship, Article 90 and 91 of the Swiss Private International Law Act (PILA / LDIP) grant you a crucial legal privilege: you can elect in your will that the succession of your estate be governed by the law of your citizenship rather than Swiss law. Learn how foreigners can choose their home country's inheritance law to optimize statutory shares.

If no explicit choice-of-law clause is included, Swiss inheritance law applies by default to all assets of testators whose last domicile was in Switzerland, including Swiss real estate, bank deposits, and personal effects.

3. Comprehensive Swiss Estate & Personal Protection

Alongside an accurate last will, a complete Swiss estate plan requires essential lifetime directives. Drafting a Swiss Advance Healthcare Directive guarantees that your medical treatment wishes are carried out if you become incapacitated, while an overarching General Power of Attorney authorizes a designated representative to manage banking and administrative affairs. If financial loans exist within the family, executing an official Acknowledgment of Debt protects estate assets against conflicting inheritance claims.

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