Under Swiss inheritance law (Art. 477 of the Swiss Civil Code / ZGB), completely disinheriting a protected statutory heir (such as a child or surviving spouse) is subject to exceptionally strict legal thresholds. A testator can only deprive a protected heir of their forced share (Pflichtteil) if that heir committed a grave criminal offense against the testator or their close relatives, or committed a severe breach of statutory family duties.

Estrangement, personal disagreements, lifestyle choices, or a complete lack of contact do not qualify as legal grounds for disinheritance under Swiss court jurisprudence. However, you are entirely free to reduce any protected heir to their statutory minimum forced portion (Pflichtteilssetzung) without providing any justification, and assign the remaining estate to other beneficiaries.

Key Takeaways at a Glance:

  • Punitive Disinheritance (Art. 477 ZGB): Only legally valid for serious intentional crimes or severe, unprovoked abandonment of family support duties.
  • Mandatory Written Substantiation: The specific dates and facts must be explicitly stated in the handwritten will (Art. 479 ZGB).
  • Watertight Strategy: Limit protected heirs to their statutory minimum under Swiss statutory shares rules to avoid court challenges.

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1. Legal Grounds for Disinheritance Under Art. 477 ZGB

Article 477 of the Swiss Civil Code restricts complete disinheritance to two exhaustive scenarios:

  • Grave Criminal Offense: The heir committed a serious intentional criminal act against the testator or someone closely connected to them (e.g., severe bodily harm, armed assault, extortion).
  • Severe Breach of Family Duties: The heir grossly and unjustifiably failed to fulfill legal maintenance or essential care duties owed under Swiss family law.

Pursuant to Art. 479 ZGB, the burden of proving these facts in court rests upon the remaining heirs if the disinherited heir challenges the will after the testator's death.

2. Complete Disinheritance vs. Forced Share Reduction

Disinheritance Mechanism Statutory Standard (ZGB) Litigation Risk in Swiss Court
Punitive Disinheritance (Art. 477 ZGB) Extremely stringent (serious crime / severe breach) Very High (frequently overturned)
Preventive Disinheritance (Art. 480 ZGB) Certificate of loss against descendant (allocated to grandchildren) Moderate (formal conditions required)
Forced Share Reduction (Art. 470 ZGB) No legal justification needed (testamentary freedom) Very Low (unassailable under Swiss law)

Strategic Recommendation: In the vast majority of situations, reducing an unwanted heir to their statutory minimum forced share and redirecting the freely disposable portion is the safest approach. Our Swiss Will Template & Guide provides tested formulation samples.

3. Preventive Disinheritance for Insolvent Descendants (Art. 480 ZGB)

If an adult child has outstanding certificates of loss (Verlustscheine) from debt enforcement proceedings, Art. 480 ZGB allows the testator to deprive them of up to half of their statutory share, provided that this portion is explicitly transferred to the child's own descendants (your grandchildren), protecting family wealth from creditors.

4. What Happens if a Disinheritance Clause Fails?

If a disinheritance fails to satisfy the rigorous criteria of Art. 477 ZGB, the disinherited heir can initiate an abatement action (Herabsetzungsklage, Art. 522 ZGB) before the competent Swiss civil court to recover their statutory portion.

Frequently Asked Questions

Can I disinherit a child because we have not spoken in years?

No. Estrangement or lack of contact is not recognized as a valid ground for punitive disinheritance under Swiss law. However, you can reduce their share to their statutory minimum (1/2 of their intestate share).

Can siblings be disinherited in Switzerland?

Yes. Siblings have no forced heirship protection under the Swiss Civil Code. You can exclude them completely from your will without giving any reason.

Can I exclude my spouse during divorce proceedings?

Under the revised 2023 Swiss inheritance law, a spouse loses their forced heirship rights if divorce proceedings are pending at the time of death and the testator explicitly excludes them in their will.

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