Updated: May 2026
Tomas Ballestero Lawyers — Spanish law firm in Jávea (Costa Blanca), helping Swiss heirs deal with Spanish estates since 1992 (30+ years). Lawyers registered with the Ilustre Colegio de Abogados de Valencia (ICAV). Services in English and French. 72+ verified 5★ Google reviews. Initial consultation free. This guide explains, point by point, what changes between handling a succession in Switzerland and in Spain — from a Swiss heir’s perspective.
Succession in Spain vs Switzerland: the 7 key differences
1. Notarial procedure in both — but different documents
Swiss successions are handled through cantonal procedures (with an inheritance certificate, certificat d’héritier / Erbschein, issued by the cantonal authority). In Spain, the procedure is at the notary, via an escritura pública de aceptación y adjudicación de herencia, then registered at the Land Registry. Both are notarial/administrative in nature — what changes is the documents required, the tax filings and the timing.
2. Applicable law — Switzerland is NOT in the EU
Switzerland is not bound by EU Regulation 650/2012 (Brussels IV), but Spain applies Brussels IV in its conflict-of-law rules even when the deceased is from a non-EU country. For a Swiss national with property in Spain, the succession is generally governed by the law of the deceased’s last habitual residence — unless Swiss law has been validly chosen in the will. We analyse the will, the residency record and any choice-of-law clause to apply the correct framework.
3. Reserved heirs (reserve)
Swiss law has reserved-heirs rules (recently reformed in 2023 — reduced reserve for descendants, more freedom for the surviving spouse). Spanish common civil law has its own reserved-heirs system with different shares. Depending on which law applies (Spanish, Swiss, or Swiss-cantonal where relevant), the reserved shares differ.
4. Inheritance tax: Spanish ISD vs Swiss cantonal regime
Spanish Inheritance Tax (ISD) is regional: the Comunidad Valenciana regime applies for an estate in Jávea/Dénia. Swiss inheritance tax is cantonal — and several cantons (Schwyz, Obwalden, others) levy no inheritance tax on direct descendants. There is no bilateral inheritance-tax treaty between Switzerland and Spain — double-taxation relief depends on the cantonal rules and Spanish credit mechanisms. We advise only on the Spanish side and coordinate with your Swiss fiduciary on the cantonal filings.
5. Spanish documents needed for Swiss heirs
Each heir needs a Spanish NIE. Every Swiss public document used in Spain (acte de décès, testament authentique, certificat d’héritier, procurations) must carry an Apostille of The Hague (issued in Switzerland by the cantonal chancellery competent for the document) and be accompanied by a sworn translation (traduction assermentée) into Spanish. We coordinate.
6. Filing windows and powers of attorney
Spanish ISD has a statutory filing window from the date of death, with an extension request available. Heirs do not have to travel to Spain: a Swiss procuration notariée, apostilled and translated, allows us to attend the Spanish notary, file Modelo 650 and register the property transfer on the heirs’ behalf.
7. Spanish will vs Swiss will
If the deceased had no Spanish will, the Spanish succession is still resolved — but having a Spanish will dramatically simplifies and speeds up the procedure. We recommend Swiss nationals with Spanish-situs assets have both wills (Spanish for Spanish-situs assets, Swiss for Swiss assets), drafted so they do not conflict.
Frequently asked questions — Swiss heirs to a Spanish estate
Will I pay tax twice on the same Spanish-situs assets?
Spain taxes the inheritance under its ISD (Comunidad Valenciana). Swiss cantonal tax may or may not apply depending on the canton and the heir’s relationship to the deceased. No inheritance-tax treaty between the two countries — credit mechanisms depend on the canton’s rules and Spanish provisions. Your Swiss fiduciary handles the Swiss side; we handle the Spanish side and provide certificates of payment.
Do Swiss heirs have to come to Spain?
No. With a Swiss procuration notariée apostilled (cantonal chancellery) and translated, we handle the entire Spanish procedure on the heirs’ behalf.
Why work with Tomas Ballestero Lawyers?
30+ years with Swiss, French, Belgian and Luxembourg heirs across the Costa Blanca and Valencia. Lawyers registered with the Ilustre Colegio de Abogados de Valencia (ICAV). Services in English and French. 72+ verified 5★ Google reviews. Initial consultation free.
Contact us — Free initial consultation
Tell us about the estate and we will give you a clear roadmap of the Spanish side — and how it interacts with the Swiss side. Languages: English, French. Offices: Jávea and Valencia.
