Under Swiss inheritance law, joint wills for married couples or registered partners are legally invalid. Pursuant to Article 505 of the Swiss Civil Code (CC), a holographic will is a strictly personal, unilateral legal instrument. Unlike in some jurisdictions such as the UK, US, or Germany (Berliner Testament), two individuals cannot combine their testamentary dispositions into a single shared document in Switzerland.

Key Swiss Legal Facts at a Glance:

  • Strict Personal Act: Every testator must handwrite, date, and sign their entire will personally from start to finish (Art. 505 para. 1 CC).
  • Two Separate Wills Required: Spouses must draft two separate handwritten wills on distinct sheets of paper.
  • Inheritance Agreement Alternative: If couples seek binding, reciprocal estate commitments, they must execute a notarized Inheritance Contract (Art. 512 CC).
  • Reviewed and verified under the Swiss Civil Code (2023 Reform) by the OnlineDokument.ch Legal Team.

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1. Why Joint Wills Are Prohibited in Switzerland

Swiss law prioritizes the unconstrained freedom of testamentary disposition. A document co-authored or jointly signed by spouses represents a severe formal defect. In the event of death, statutory heirs can challenge the joint document in court under Article 520 CC (Action for Annulment), rendering the entire will null and void.

2. The Two Legitimate Paths for Couples in Switzerland

Option A: Two Separate Holographic Wills

Each spouse writes their own complete will on a separate sheet of paper. Dispositions can be coordinated reciprocally, allocating the freely disposable portion to the surviving spouse while observing statutory portions under the 2023 Swiss Inheritance Law Reform.

Option B: Notarized Inheritance Contract (Erbvertrag)

If spouses desire a legally binding arrangement that cannot be revoked unilaterally, they must execute an Inheritance Contract (Art. 512 CC) before a public notary in the presence of two independent witnesses.

Practical Tip: Use our verified Swiss Will Template and Instructions Guide to ensure both partners create valid, error-free individual handwritten wills.

3. Comparison: Two Separate Wills vs. Inheritance Contract

Feature Two Separate Handwritten Wills Inheritance Contract (Art. 512 CC)
Formal Requirement 100% handwritten, dated, and signed individually Public notary authentication + 2 witnesses
Unilateral Revocation Permitted at any time by either spouse Only possible with mutual written consent
Cost Affordable with template guide (0 to 49 CHF) Notary fees (800 to 2,500+ CHF)

4. Essential Complementary Estate Documents

In addition to drafting a last will, completing a Swiss Advance Healthcare Directive ensures that your medical preferences and surrogate decisions are binding. Granting a General Power of Attorney empowers a trusted partner to handle administrative and banking matters smoothly. If financial loans exist between relatives, executing an Acknowledgment of Debt prevents future probate disputes.

Frequently Asked Questions

Can foreign couples living in Switzerland use a joint will made in their home country?

Under private international law (PIL), foreign wills may be valid if compliant with the law of the nationality or place of execution. However, for Swiss-domiciled individuals and Swiss real estate, drafting Swiss-compliant individual wills or choosing applicable law via professio juris is strongly advised.

What if one spouse writes the will and both sign it?

This results in complete formal invalidity for the non-writing spouse under Article 505 CC, creating immense legal risk and likely probate rejection.

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