29 April 2026

When Enforcement Meets Foreign Policy: Sanctions as a Hard Stop for Swiss Collection

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The Swiss Federal Supreme Court ruled in its Decision of 13 March 2026 (4A_305/2025) that enforceability may yield to sanctions – and the enforcement courts must act ex officio.

  • Raphael Brunner

    Legal Partner

A binding title is usually the end of the story: once you have it, Swiss debt enforcement tends to be fast, technical and predictable. The Swiss Federal Supreme Court’s decision 4A_305/2025 (13 March 2026) shows how quickly that certainty dissolves when sanctions enter the equation. In that scenario, collection is no longer just about procedural form – it becomes a question of whether Swiss law permits payment at all, and foreign‑policy measures can override private-law enforcement.

A seemingly standard debt enforcement (Betreibung) – until sanctions took centre stage

The case began as an ordinary debt enforcement (Betreibung). An Angolan company active in the diamond and minerals sector pursued a Swiss-based individual for CHF 368’207.06 (plus interest), particularly relying on an LCIA arbitral award from 28 April 2023. In January 2024, the creditor served a Swiss payment order (Zahlungsbefehl); the debtor filed an objection (Rechtsvorschlag). The creditor then sought for definitive setting aside of the debtor’s objection (definitive Rechtsöffnung) – the summary procedure that normally succeeds when a creditor holds a qualifying title under Swiss enforcement law such as a final arbitral award. The District Court of Aarau granted the request, but the Cantonal Court of Aargau reversed and refused definitive Rechtsöffnung, and the dispute reached the Swiss Federal Supreme Court.

What the courts found: “control” and indirect payments matter

The turning point was the Swiss Ukraine Ordinance. Article 15 freezes funds and economic resources owned or controlled (directly or indirectly) by designated persons/entities and prohibits making funds available to them – directly or indirectly.

Even though the creditor was incorporated in Angola, the cantonal court concluded it was controlled by a sanctioned entity listed in Annex 8 of the Swiss Ukraine Ordinance. Its analysis looked beyond formalities and relied on a constellation of indicators: the sanctioned entity held approximately 41% of the creditor’s share capital; individuals described as Russian nationals occupied influential governance and key management roles (notably finance and production); major contracts were signed by senior finance management; and the creditor appeared with detailed financial figures in the sanctioned entity’s consolidated financial statements, supporting the inference of unified management and consolidation.

The creditor argued that, under Swiss law, the debtor could discharge by paying the enforcement office (Art. 12 Federal Act on Debt Enforcement and Bankruptcy). The courts rejected this as a workaround: payment to the office creates a depositum irregulare and results in an indirect value transfer, because the creditor would acquire an entitlement to payout. That, too, would amount to indirectly making funds available – exactly what Article 15 seeks to prevent.

The Supreme Court’s legal reasoning: enforceability yields to sanctions – and courts must act ex officio

The cantonal court had framed the sanctions prohibition as subsequent legal impossibility within the meaning of Art. 119(1) Swiss Code of Obligations, leading to the conclusion that the claim could not be enforced through definitive Rechtsöffnung. The Swiss Federal Supreme Court upheld the result but left open whether this qualification was correct.

First, the Swiss Federal Supreme Court emphasized the systemic contradiction that would arise if enforcement were allowed: a debtor cannot be put in a position where Swiss law prohibits payment under sanctions while Swiss authorities compel payment through enforcement. Consequently, the claim must be at least unenforceable for as long as sanctions block payment – whether one characterizes the situation as extinction through impossibility or, more cautiously, as a form of statutory “suspension” of enforceability.

Second, the Swiss Federal Supreme Court treated sanctions as a matter of overriding mandatory Swiss law, reflecting Switzerland’s foreign-policy interests, and therefore to be taken into account also in private‑law enforcement proceedings.

Third – and most practically – the Swiss Federal Supreme Court signaled that sanctions compliance cannot be left to the pleadings of the parties. While definitive Rechtsöffnung typically operates with strict documentary proof requirements for defenses, sanctions are different: given their mandatory character, courts must be able to examine sanctions issues ex officio and, where required, maintain an enforcement moratorium even if the debtor has not properly raised or proven it.

What clients should consider now

Swiss Federal Supreme Court’s Decision 4A_305/2025 confirms that sanctions law operates as a decisive constraint on debt enforcement. A claim may be perfectly valid on the merits and still become practically non-collectable in Switzerland if payment is prohibited – directly or indirectly. This leads to the following practical takeaways:

  • Map control, not just ownership. Minority stakes, governance influence, consolidation signals and management roles can be decisive in a “control” assessment.
  • Stress-test the payment path. Paying “into the system” (via authorities) may still be an indirect making-available of funds.
  • Build sanctions considerations into enforcement strategy from day one. Before initiating debt enforcement, buying receivables, or negotiating settlement leverage, assess sanctions exposure – because Swiss courts must raise it themselves, and an otherwise strong title can end in an enforcement standstill.

The MME team is happy to support you.

 


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