How to Bring a Cross‑border Commercial Claim in Switzerland (2026), Step‑by‑step

If you need to bring a cross‑border commercial claim in Switzerland in 2026, the procedural landscape has shifted materially since 1 January 2026. Federal‑level amendments to the Federal Act on Private International Law (PILA) and Switzerland’s declaration under the Hague Evidence Convention now permit videoconference testimony, voluntary witness participation, and streamlined cooperation channels, all of which change pre‑filing calculations, evidence routes, and realistic timelines. This guide walks general counsel, fund managers, and international trading or FinTech businesses through every stage of cross‑border commercial litigation in Switzerland: from jurisdiction tests and forum selection, through filing, service abroad, evidence collection, provisional measures, and enforcement.

It also covers the documents you will need, indicative costs, and the pitfalls that regularly derail otherwise meritorious claims.

Overview of the Process and Who It Applies To

A “cross‑border commercial claim” in the Swiss context means any contractual, tortious, or insolvency‑related dispute with a foreign element, for example, a claimant or defendant domiciled outside Switzerland, a contract governed by foreign law, or assets located across multiple jurisdictions. Switzerland’s procedural framework for these claims rests on two primary statutes: the PILA, which governs jurisdiction and applicable law for international matters, and the Swiss Code of Civil Procedure (ZPO/CPC), which sets out domestic procedural rules applicable once jurisdiction is established.

The first strategic decision for any claimant is whether to pursue court litigation or international arbitration. Where the contract contains an arbitration clause, and Switzerland remains one of the world’s preferred arbitration seats under PILA Chapter 12, state court proceedings will generally be unavailable for the merits. Where no valid arbitration clause exists, Swiss courts may have jurisdiction if the defendant is domiciled in Switzerland, if the contract designates a Swiss forum, or if Swiss‑located assets provide a basis for interim relief and enforcement.

Evidence‑only actions are also common: a foreign litigant may need to obtain witness testimony or documents located in Switzerland in aid of proceedings abroad. The 2026 reforms to cross‑border evidence rules, effective 1 January 2026, have made this process faster but have not removed the compliance risks under Article 271 of the Swiss Criminal Code (SCC), which criminalises certain foreign official acts on Swiss territory. Understanding both the opportunities and the constraints is essential before any filing.

Eligibility and Prerequisites for a Cross‑Border Commercial Claim in Switzerland

Jurisdiction: Contractual and Statutory Tests

Swiss courts accept jurisdiction over cross‑border commercial claims under several connecting factors. The most straightforward is a contractual choice‑of‑forum clause designating a Swiss canton. In the absence of a forum‑selection clause, the PILA provides default rules: jurisdiction at the defendant’s domicile or habitual residence in Switzerland, jurisdiction at the place of performance of the contractual obligation, and, for tort claims, jurisdiction at the place where the harmful act occurred or produced its effects. Where a defendant has no Swiss domicile but holds assets in Switzerland, provisional measures (attachment of assets) may create a jurisdictional basis under the Federal Debt Enforcement and Bankruptcy Act (DEBA/SchKG).

For disputes between parties from states bound by the Lugano Convention, that instrument’s jurisdiction rules apply instead of the PILA and take precedence.

Courts and Pilot International Commercial Chambers

Cross‑border commercial claims in Switzerland are typically heard by cantonal commercial courts, specialised chambers that exist in several cantons including Zurich, Bern, Aargau, and St. Gallen. These courts handle disputes of a commercial nature where at least one party is registered in the commercial register.

A significant development is the introduction of pilot international commercial court initiatives in selected cantons, enabling proceedings in English where both parties consent and the court grants permission. These pilots aim to position Switzerland as a competitive forum for international commercial disputes. Industry observers expect additional cantons to join these pilot schemes in the coming years. Parties wishing to use English proceedings should include an express language‑of‑proceedings clause in their contracts and confirm availability with the specific cantonal court before filing.

When to Choose Arbitration vs Swiss Court Litigation

Arbitration under PILA Chapter 12 is generally preferable where the contract already contains an arbitration clause, where confidentiality is important, where the dispute involves parties from jurisdictions that have ratified the New York Convention (facilitating enforcement), or where the parties want to choose their adjudicators. Swiss court litigation may be more appropriate where no arbitration agreement exists, where interim relief is needed urgently before an arbitral tribunal is constituted, or where the claimant wishes to attach assets in Switzerland under DEBA/SchKG. In practice, many cross‑border commercial claims involve both tracks: an attachment or freezing application in court, followed by arbitral proceedings on the merits.

Step‑by‑Step Procedure to Bring a Cross‑Border Commercial Claim in Switzerland

The following numbered steps set out the operational flow from pre‑filing preparation through to enforcement. The timeline table below summarises who does what and how long each stage typically takes.

Step 1, Conduct Pre‑Filing Checks and Issue a Demand Letter

Before filing any claim, the claimant should take three immediate actions. First, issue an evidence preservation hold to all internal teams and relevant counterparties. This means instructing IT departments to suspend routine data‑deletion policies, backing up email servers, preserving metadata on all electronic communications, and documenting the chain of custody for hard‑copy records. Second, assess whether interim relief, such as a freezing order or asset attachment, is needed urgently. If assets are at risk of dissipation, skip ahead to provisional measures (Step 5 below) and apply on an ex parte basis before the formal claim is filed. Third, send a formal demand letter to the defendant setting out the claim, the legal basis, and the relief sought.

Under Swiss practice, a demand letter is not always a statutory prerequisite, but it is standard commercial practice and can establish the start date for default interest.

Step 2, Select the Forum and Prepare the Statement of Claim

Confirm the appropriate forum: the canton designated in the contract, the canton of the defendant’s domicile, or the canton where interim relief is sought. Identify whether the cantonal commercial court has jurisdiction (commercial register requirements) or whether a general civil court applies. If the parties have agreed to English proceedings and the chosen canton participates in the international commercial court pilot, request language permission at this stage. Prepare the statement of claim (Klageschrift / demande), which must set out the jurisdictional basis, the factual narrative, the legal grounds, and the specific relief sought. Attach all supporting evidence available at the time of filing.

Step 3, File the Claim with the Court

File the statement of claim at the competent cantonal court. Pay the court filing fee, which is calculated based on the amount in dispute and varies by canton. The claim must be filed in the official language of the canton, German, French, or Italian, unless English proceedings have been authorised. If the contract or supporting evidence is in a foreign language, certified translations must accompany the filing. The court will issue a procedural acknowledgement and set the case on its docket.

In some cantons, a conciliation hearing before the justice of the peace is required before the claim reaches the commercial court; where the amount in dispute exceeds CHF 100,000 and both parties agree, the parties may waive conciliation and proceed directly.

Step 4, Serve Documents Abroad and Comply with Article 271

Where the defendant is domiciled abroad, service must comply with the Hague Service Convention if the destination state is a contracting party. The claimant transmits the documents through the Swiss central authority (the cantonal court or the FOJ, depending on the canton) to the foreign central authority. This process typically takes 2–12 weeks depending on the receiving jurisdiction’s efficiency. For non‑Hague states, consular or diplomatic service channels apply, which are slower.

Article 271 of the SCC is a critical compliance point. This provision criminalises the performance on Swiss territory of acts on behalf of a foreign state, a foreign public authority, or a foreign organisation without official authorisation. In practical terms, this means a foreign litigant or foreign authority cannot directly instruct witnesses, collect documents, or conduct depositions in Switzerland without going through proper channels, either the FOJ, the Hague Evidence Convention process, or by obtaining prior authorisation. Violations can result in criminal penalties. The 2026 reforms have relaxed the rules for voluntary participation and videoconference testimony, but the underlying Article 271 prohibition remains in force.

Any evidence‑gathering activity in Switzerland should be reviewed by Swiss counsel for Article 271 compliance before it begins.

Step 5, Apply for Interim and Provisional Measures

Where there is a credible risk of asset dissipation, destruction of evidence, or irreparable harm, the claimant should apply for provisional measures. Swiss courts can grant asset attachments (Arrest) under the DEBA/SchKG, freezing orders, and other protective measures. Applications may be made ex parte in urgent cases, courts can hear these within 24–72 hours. The applicant must demonstrate a prima facie claim, a credible risk, and proportionality. In most cases, the court will require the applicant to post a security deposit to cover potential damages if the measures later prove unjustified. Once granted, the measures must be validated by commencing the main proceedings within a deadline set by the court, typically 10–30 days.

Step 6, Gather Cross‑Border Evidence Under the 2026 Rules

Collecting cross‑border evidence in Switzerland has become materially more efficient since 1 January 2026. Key changes include the option for witnesses to give testimony by videoconference without requiring the physical presence of foreign officials on Swiss soil, and the ability for persons in Switzerland to voluntarily participate in foreign proceedings (including providing documents) without triggering the full FOJ authorisation process. The traditional route, a formal letter rogatory through the Hague Evidence Convention, remains available and is still required where the witness is unwilling or where formal compulsion is needed. Typical timeframes for evidence collection range from 2–6 weeks for straightforward documentary requests to 3–6 months for multi‑witness, cross‑border exercises.

Swiss courts appoint their own experts in most cases, though party‑appointed experts are accepted subject to court approval.

Step 7, Obtain Judgment and Enforce

Once evidence has been taken and oral hearings concluded, the court will render its judgment. For domestic enforcement, the prevailing party can use the procedures set out in the ZPO/CPC and the DEBA/SchKG to enforce against the losing party’s Swiss assets. For enforcement of foreign judgments in Switzerland, the Lugano Convention governs recognition between Switzerland and EU/EFTA member states; other foreign judgments require recognition under the PILA. Arbitral awards rendered in Switzerland are enforceable directly under the ZPO/CPC, while foreign arbitral awards benefit from recognition and enforcement under the New York Convention, to which Switzerland is a contracting party. The enforcement stage typically takes 1–6 months depending on the complexity of the assets involved and any defences raised.

Documents Needed for a Cross‑Border Commercial Claim in Switzerland

Compiling the right documentation before and during proceedings is essential. The checklist below covers both filing requirements and evidence‑gathering needs. Missing or incorrectly formatted documents are among the most common causes of procedural delay.

Before filing, verify that every document requiring legalisation or apostille has been properly certified. Courts will not accept unverified foreign‑language originals. Build in at least 2–3 weeks for translations and notarisations when planning the filing timeline.

Timeline and Key Deadlines for Cross‑Border Commercial Claims in Switzerland

Realistic timeframes vary significantly depending on claim complexity, the number of parties, and whether evidence must be collected from multiple jurisdictions. The table below provides indicative ranges for a routine versus a complex cross‑border commercial claim.

Statutes of limitation. Under the Swiss Code of Obligations, the general limitation period for contractual claims is 10 years. However, specific shorter periods apply to certain claim types, for example, tort claims are subject to shorter limitation periods. Claimants must verify the applicable limitation period for their specific cause of action before commencing proceedings. An expired limitation period is a complete defence and cannot be remedied after the fact.

Deadlines after interim relief. Where a court grants provisional measures before the main claim is filed, the applicant must typically commence proceedings on the merits within a court‑imposed deadline, commonly 10–30 days. Failing to do so results in automatic lapse of the provisional measures.

The 2026 cross‑border evidence reforms have shortened the evidence‑gathering phase in many cases. Industry observers expect the average duration for obtaining witness testimony from Switzerland to decrease by several weeks where videoconference options are used instead of the traditional letter‑rogatory process.

Costs, Fees, and Tax Considerations for a Cross‑Border Commercial Claim in Switzerland

Cost recovery. Swiss courts award costs to the prevailing party under the ZPO/CPC, but the recoverable amount typically does not cover the full hourly rate of external counsel. Parties engaged in cross‑border commercial litigation should factor in an irrecoverable cost component. Including an indemnity costs clause in future contracts can help mitigate this gap.

What Changes in 2026 for Cross‑Border Commercial Claims in Switzerland

The reforms effective 1 January 2026 represent the most significant modernisation of Switzerland’s cross‑border civil procedure framework in decades. Three changes carry the greatest practical impact for commercial claimants:

• Videoconference testimony. Witnesses and experts in Switzerland may now provide testimony by videoconference in aid of foreign proceedings, without the physical presence of foreign judicial officers on Swiss soil. This removes a major bottleneck that previously required formal letters rogatory for almost all witness evidence.
• Voluntary participation. Persons located in Switzerland may voluntarily participate in foreign proceedings, including providing documents and answering questions, without triggering the full FOJ authorisation process. This significantly reduces the administrative burden for cooperative witnesses and document holders.
• Pilot international commercial courts. Selected cantons now operate pilot international commercial court chambers that accept proceedings in English where both parties consent. The likely practical effect will be to attract more international disputes to Swiss courts and to reduce translation costs and delays.

Critically, Article 271 SCC remains in force. The 2026 reforms do not authorise foreign states or their agents to conduct official acts on Swiss territory without authorisation. Any evidence‑gathering activity that goes beyond voluntary cooperation, such as a foreign regulator compelling testimony or conducting depositions, still requires FOJ clearance. Swiss counsel should be instructed before any cross‑border evidence activity is initiated.

Common Pitfalls and How to Avoid Them

• Ignoring Article 271 risk. Foreign litigants and their agents who collect evidence on Swiss soil without authorisation face criminal exposure. Always route evidence requests through proper channels, the FOJ, the Hague Evidence Convention, or Swiss counsel.
• Failing to preserve ESI and metadata. Delay in issuing a preservation hold can result in the routine destruction of critical electronic evidence. Implement holds immediately upon contemplation of litigation.
• Choosing the wrong service route. Consular service is slower and less predictable than the Hague Service Convention. Use the Hague route wherever the destination state is a contracting party.
• Not planning for translations and notarisation. Courts will reject filings with unverified foreign‑language documents. Build translation and legalisation time into the pre‑filing schedule, allow at least 2–3 weeks.
• Assuming English will be accepted. English proceedings are available only in participating pilot cantons and only with both parties’ consent and court approval. Confirm language availability before filing and include an English‑proceedings clause in future contracts.
• Missing provisional‑measures validation deadlines. If the court grants ex parte interim relief, the claimant must file the main claim within a short court‑imposed deadline, typically 10–30 days. Missing this deadline causes the measures to lapse automatically.

Sources

1. Federal Act on Private International Law (PILA), Chapter 12 (English Translation)
2. Swiss Code of Civil Procedure (ZPO / CPC), Fedlex
3. Bär & Karrer, New Rules to Facilitate Cross‑Border Civil Proceedings (Effective 1 January 2026)
4. Lenz & Staehelin, Taking of Evidence in Aid of Cross‑Border Civil Proceedings
5. Lexology, Switzerland: Cross‑Border Evidence Reforms 2026
6. Global Law Experts, Cross‑Border Commercial Litigation Switzerland 2026
7. LALIVE, Article 271(1) of the Swiss Criminal Code: Myth or Reality?