Skip to main content
+41 58 590 11 44
PBM Avocats – Avocats Genève Lausanne
Marriage Annulment

Marriage Annulment

Marriage Annulment in Switzerland

Marriage annulment represents a legal procedure distinct from divorce, allowing a marriage to be declared null and void from its origin. In Swiss law, this approach remains relatively rare but constitutes a legal option in specific circumstances. Unlike divorce, which ends a valid union, annulment considers that the marriage never legally existed. Our Swiss law firm assists persons facing this delicate situation, which requires in-depth legal expertise. The grounds for annulment are strictly governed by the Swiss Civil Code and require demonstration of substantial irregularities at the time of the marriage ceremony or defects of consent.

The Legal Basis for Marriage Annulment in Switzerland

In Swiss law, marriage annulment is primarily governed by articles 104 to 109 of the Civil Code. This procedure is fundamentally distinct from divorce in its grounds and legal effects. While divorce ends a validly contracted marriage, annulment declares that the marriage was tainted by a defect from its formation.

The Swiss legislature has established two categories of grounds for annulment: grounds of absolute nullity and grounds of relative nullity. The distinction is fundamental as it determines who may bring the annulment action and within what time limits.

Grounds of Absolute Nullity

Grounds of absolute nullity, set out in article 105 of the Swiss Civil Code, concern situations where public order is at stake. In these cases, the annulment action may be brought by any interested person or ex officio by the competent authority, without time limitation.

  • One of the spouses was already married at the time of the solemnisation and the previous marriage had not been dissolved
  • One of the spouses permanently lacked the capacity of judgement at the time of solemnisation and has not regained it since
  • The marriage was prohibited due to kinship ties between the spouses (incest)
  • One of the spouses did not genuinely wish to marry but to circumvent provisions on the admission and residence of foreigners (sham marriage)
  • The marriage was contracted between persons of the same sex (before the entry into force of marriage for all)

Grounds of Relative Nullity

Grounds of relative nullity, provided for in article 107 of the Civil Code, concern defects of consent. In these situations, only the aggrieved spouse may bring the annulment action, within a relatively short period (generally six months from discovery of the defect or cessation of the threat, and at most within five years of the marriage).

  • One of the spouses temporarily lacked capacity of judgement at the time of solemnisation
  • One of the spouses declared consent to the marriage in error, either not wishing to marry, or not thinking they were marrying the person who became their spouse
  • One of the spouses was induced into error about essential personal qualities of their future spouse
  • One of the spouses contracted the marriage under threat of serious and imminent danger to their life, health or honour, or those of their close relatives

Federal Supreme Court case law has over time clarified the interpretation of these provisions, particularly regarding the notion of "essential personal qualities" that may justify annulment for mistake.

The Marriage Annulment Procedure Before Swiss Courts

The marriage annulment procedure in Switzerland follows a precise judicial course, requiring meticulous preparation and in-depth knowledge of procedural aspects.

Jurisdiction

The marriage annulment action falls within the jurisdiction of the court of the domicile of one of the spouses. If neither spouse is domiciled in Switzerland but the marriage was solemnised there, the court of the place of solemnisation will be competent.

For international marriages, complex questions of private international law may arise. The Federal Act on Private International Law (PILA) then determines the applicable law and the jurisdiction of Swiss courts.

Course of the Procedure

The procedure begins with the filing of a reasoned application with the competent court. This application must clearly set out the facts justifying annulment and be accompanied by relevant evidence.

The procedure is subject to the rules of the Swiss Civil Procedure Code (CPC). It generally includes:

  • A written phase of exchange of submissions between the parties
  • A preliminary hearing where the judge attempts conciliation
  • Main hearings with taking of evidence
  • The judgment of annulment or rejection of the application

The burden of proof lies with the claimant who must demonstrate the existence of the invoked ground for annulment. This proof can be particularly delicate in certain cases, such as sham marriages or mistake about the spouse's essential personal qualities.

Interim and Provisional Measures

During the annulment procedure, which may last several months, the court may order provisional measures similar to those provided in divorce proceedings: allocation of the family home, fixing of maintenance contributions, regulation of parental authority and custody of children if the couple has any.

Our law firm assists applicants throughout this procedure, from the initial assessment of prospects for success to the enforcement of the annulment judgment, including drafting procedural documents and representation before the court.

Legal Consequences of Marriage Annulment

Marriage annulment produces significant legal effects that partially differ from those of divorce. The fundamental principle is that the marriage is considered never to have legally existed (retroactive effect). However, the Swiss legislature has provided protective mechanisms to mitigate the potentially severe consequences of this retroactivity.

Effects on the Spouses

Annulment ends the matrimonial regime between the spouses. The liquidation of the regime is carried out according to the rules applicable to divorce. Thus, despite the theoretically retroactive effect of annulment, the patrimonial consequences are treated as if the marriage had existed until its annulment.

Regarding surname, the spouse who changed their name upon marriage may declare to the civil registry officer, within six months of the final judgment, that they wish to keep the name acquired by the marriage or resume their maiden/bachelor name.

For occupational pension provision (second pillar), assets accumulated during the marriage are in principle divided between the former spouses, as in the case of divorce.

Protection of Good Faith

Article 109 of the Swiss Civil Code specifically protects the good-faith spouse. If one of the spouses was unaware of the ground for nullity at the time of the marriage, the annulment does not have retroactive effect with respect to them. They therefore retain the advantages they would have derived from a valid marriage.

This protection is particularly relevant in the following cases:

  • Right to appropriate maintenance contribution
  • Succession rights preserved until annulment
  • Potential maintenance of acquired rights in social insurance matters

Effects on Children

Marriage annulment has no effect on the filiation of children born during the union. They retain their status as legitimate children, with all attached rights. Questions relating to parental authority, custody, visiting rights and maintenance contributions are resolved according to the same principles as in divorce, prioritising the child's best interests.

The court rules on these questions as part of the annulment judgment, applying the provisions of articles 131 et seq. of the Swiss Civil Code.

Special Cases and Complex Annulment Situations

Certain marriage annulment situations present particularities and complexities requiring a specific legal approach. Our law firm has developed expertise in these sensitive areas.

Sham or Fictitious Marriages

Annulment for fictitious marriage (article 105, no. 4 CC) is a frequently invoked ground, particularly in the migration context. These unions, contracted solely to circumvent provisions on foreigners' residence, are the subject of increased attention from Swiss authorities.

Proof of the fictitious nature of the marriage often rests on a body of evidence:

  • Absence of effective shared life
  • Mutual ignorance of fundamental aspects of each other's lives
  • Significant age difference without plausible explanation
  • Payment of a sum of money to obtain the marriage
  • Absence of a shared life project

Civil registry offices, migration services and the Public Prosecutor may report suspected cases to the courts, which will then initiate ex officio proceedings. Annulment of a marriage on this ground can have serious consequences for the foreign spouse's residence status.

Forced Marriages

Since the revision of the Civil Code that entered into force in 2013, the fight against forced marriages has been strengthened. Article 105, no. 5 CC expressly provides for absolute nullity of a marriage when it was contracted in violation of the free will of one of the spouses.

In these particularly delicate situations, our law firm works in collaboration with specialist associations to provide comprehensive support to victims. The procedure must be conducted with particular sensitivity to the cultural dimensions and security risks for the person concerned.

International Marriages

Annulment of marriages with a foreign element raises complex questions of private international law. Determination of the applicable law and jurisdictional competence follows the rules of the PILA.

Specific difficulties may arise regarding:

  • Recognition in Switzerland of marriages solemnised abroad
  • Recognition abroad of Swiss annulment judgments
  • Potential conflicts between different legal systems

Our firm assists clients in these cross-border situations, taking into account the implications both under Swiss law and the foreign legal systems involved.

Practical Dimension and Legal Support in Annulment Matters

Given the complexity of marriage annulment procedures and their multiple implications, specialised legal support often proves decisive for the success of the approach. Our law firm offers a comprehensive approach that takes into account the legal, emotional and practical dimensions of each situation.

Preliminary Assessment and Legal Strategy

Before initiating any procedure, we conduct a thorough analysis of each file to determine whether the conditions for annulment are met. This assessment phase includes:

  • Precise identification of the applicable ground for annulment
  • Verification of legal deadlines for action
  • Examination of available and required evidence
  • Assessment of prospects for success

On this basis, we develop an appropriate legal strategy, which may sometimes include the alternative option of divorce if this proves more appropriate or more accessible in the client's specific situation.

Building the Evidence File

Since the burden of proof is a determining aspect in annulment procedures, we assist our clients in collecting and organising evidence:

  • Testimonies and attestations
  • Official documents and correspondence
  • Medical or psychological assessments in certain cases
  • Legally admissible private investigations

This phase requires a rigorous methodology to meet the strict evidentiary requirements of Swiss courts in annulment matters.

Coordination With Other Proceedings

Marriage annulment may occur within a broader legal context, requiring coordination with other proceedings:

  • Criminal proceedings (in cases of duress, deception or bigamy)
  • Administrative proceedings related to immigration law
  • Protective measures in domestic violence situations

Our firm ensures this coordination to guarantee the coherence of all legal steps taken.

Human Support and Post-Procedure Follow-Up

Beyond the strictly legal aspects, we recognise the emotional and social impact that annulment proceedings can have. Our lawyers offer personalised support throughout the process and maintain clear communication on developments in the file.

After the annulment judgment, we assist our clients in implementing the court's decisions and direct them to the appropriate professionals for the non-legal aspects of their situation (psychological support, administrative steps, etc.).

In a context where family law is rapidly evolving, our law firm maintains constant legal monitoring of legislative and case law developments in marriage annulment matters. This up-to-date expertise allows us to offer quality legal advice, adapted to contemporary realities and the specificities of Swiss law.

Restrictive Annulment Conditions: Comparative Summary

The table below summarises the conditions for marriage annulment under articles 104 to 109 CC, distinguishing absolute and relative nullity.

Type Ground Who Can Act? Deadline Legal Basis
Absolute nullityBigamy (prior marriage not dissolved)Any interested party / ex officioNo time limitArt. 105 no. 1 CC
Absolute nullityPermanent incapacity of judgementAny interested party / ex officioNo time limitArt. 105 no. 2 CC
Absolute nullityProhibited kinship (incest)Any interested party / ex officioNo time limitArt. 105 no. 3 CC
Absolute nullitySham marriage (evasion of immigration law)Any interested party / ex officioNo time limitArt. 105 no. 4 CC
Absolute nullityForced marriage (serious duress)Any interested party / ex officioNo time limitArt. 105 no. 5 CC
Relative nullityTemporary incapacity of judgementAggrieved spouse only6 months from recovery / 5 years maxArt. 107 no. 1 CC
Relative nullityMistake as to identity or essential qualitiesAggrieved spouse only6 months from discovery / 5 years maxArt. 107 no. 2-3 CC
Relative nullityDuress (serious and imminent threat)Aggrieved spouse only6 months from cessation / 5 years maxArt. 107 no. 4 CC

Frequently Asked Questions About Marriage Annulment

What are the conditions for annulling a marriage under Swiss law?

The Swiss Civil Code distinguishes two categories of grounds for annulment (art. 104-109 CC). Grounds for absolute nullity (art. 105 CC): bigamy (one of the spouses was already married), permanent incapacity of judgement, prohibited kinship (incest), fictitious marriage to circumvent rules on foreigners, and forced marriage. These grounds may be invoked by any interested person, without time limit. Grounds for relative nullity (art. 107 CC): temporary incapacity of judgement, mistake as to identity or essential personal qualities, duress. These may only be invoked by the aggrieved spouse, within 6 months of discovering the defect (and at most within 5 years of the marriage).

What is the difference between marriage annulment and divorce?

Annulment (art. 104 CC) declares the marriage null and void from its origin: in theory, it never existed. Divorce (art. 111 et seq. CC) ends a validly contracted marriage. In practice, the patrimonial effects of annulment are however treated as those of a divorce (liquidation of the matrimonial regime, division of the second pillar). The good-faith spouse is protected (art. 109 CC). The distinction is most important for succession rights and civil status.

Who can apply for marriage annulment in Switzerland?

For grounds of absolute nullity (art. 105 CC), the action may be brought by either spouse, by any interested party, and ex officio by the competent authority (Public Prosecutor, guardianship authority), without time limit. For grounds of relative nullity (art. 107 CC), only the aggrieved spouse may act, within 6 months of becoming aware of the ground or the cessation of duress, and at most within 5 years of the solemnisation of the marriage.

Is a sham marriage a ground for annulment in Switzerland?

Yes. According to art. 105 no. 4 CC, a marriage contracted solely to circumvent rules on the admission and residence of foreigners is absolutely null. Proof of the fictitious nature of the marriage rests on a body of evidence: absence of shared life, mutual ignorance of each other, absence of a family project, payment of money. Migration authorities, civil registry offices and the Public Prosecutor may report suspected cases and initiate ex officio annulment proceedings. Annulment for sham marriage can have serious consequences for the foreign spouse's residence status.

Need a lawyer?

Book an appointment now by calling our office or filling out the contact form. In-person or video conference appointments available.