Cost of Arbitration in Switzerland 2026: Security for Costs, Tribunal Fees, Deposits & Third‑party Funding

Understanding the cost of arbitration in Switzerland is essential for any corporate counsel, insurer or general counsel budgeting a dispute in one of the world’s most popular arbitration seats. Switzerland continues to attract complex commercial and investment treaty arbitrations, yet the total financial exposure, spanning tribunal fees, institutional administration charges, advances on costs and counsel spend, remains opaque for many first-time and repeat users alike. This guide sets out every major cost component for 2026, explains when and how tribunals order security for costs, walks through deposit mechanics and non-payment consequences, and examines the growing influence of third‑party funding on cost allocation and risk.

Executive Summary: What This Guide Answers

This article is designed as a single practical reference for parties and advisers planning or already engaged in Swiss-seated arbitration. It answers the following questions:

• What are the main cost components? Tribunal fees, administrative fees, advances on costs, legal representation, experts, hearing logistics and enforcement, broken down with worked examples.
• When can a tribunal order security for costs? The legal basis under Swiss law and institutional rules, the evidential threshold, typical forms of security (bank guarantees, escrow) and practical drafting pointers.
• How do advances and deposits work? Timing, staged payment options, what happens on non-payment, and how insurers and corporates structure cash-flow.
• How does third‑party funding affect costs? Disclosure obligations, impact on security‑for‑costs applications, funder deposit mechanics and insurer-subrogation interactions.
• How should parties budget realistically? A quick-reference cost matrix, an institutional fee comparison table and a downloadable budgeting checklist.

Quick Glossary: Key Cost Terms

• Tribunal fees. The arbitrators’ remuneration, typically calculated on the basis of the amount in dispute and the time spent. In institutional arbitration these are set by reference to published fee scales.
• Administrative fees. Charges levied by the arbitral institution (e.g. the Swiss Arbitration Centre) for case management, covering registry services, communications and procedural support.
• Advance on costs. An upfront deposit requested by the institution or tribunal to cover anticipated tribunal and administrative fees. Usually split equally between the parties at the outset.
• Security for costs. An order requiring one party, typically the claimant, to provide financial security (bank guarantee, escrow deposit or similar instrument) to protect the other party against an inability to recover costs if the claim fails.
• Third‑party funding (TPF). An arrangement under which a non-party finances a party’s arbitration costs in return for a share of any award or settlement proceeds.
• Cost allocation. The tribunal’s decision, usually in the final award, on how arbitration costs and the parties’ own legal costs are divided, typically following the “costs follow the event” principle, subject to discretion.

Overview: Cost of Arbitration in Switzerland, Components and Examples

Swiss arbitration costs fall into two broad categories: costs of the arbitration (tribunal and institutional fees, expenses) and party costs (counsel, experts, witnesses, hearing logistics). Article 38 of the Swiss Rules of International Arbitration provides a non-exhaustive list of recoverable cost items, including the fees and expenses of the arbitrators, the administrative costs of the institution, fees for expert advice ordered by the tribunal and the reasonable legal and other costs incurred by the parties. Understanding each line item is critical for accurate budgeting in commercial arbitration in Switzerland.

Tribunal and Administrative Fees Under the Swiss Rules

The Swiss Arbitration Centre publishes fee scales and an online cost calculator that produces indicative ranges based on the amount in dispute and the number of arbitrators. Arbitration fees in Switzerland under the Swiss Rules comprise a registration fee payable upon filing and ongoing administrative and tribunal fees calculated on a sliding scale.

Source: Swiss Arbitration Centre cost calculator and published fee schedules.

Counsel, Experts and Incidental Costs

Legal representation is typically the single largest cost item, often exceeding tribunal and administrative fees combined. Hourly rates for senior arbitration counsel in Zurich and Geneva range widely, and total counsel spend depends heavily on the procedural complexity, number of submissions and length of hearing. Party-appointed and tribunal-appointed expert fees add a further variable, particularly in technical, construction or quantum disputes. Incidental costs, hearing-room hire, court reporters, translators, travel, can be significant where multi-day hearings are held in Switzerland’s main arbitration centres.

Typical Cost Ranges, Worked Examples

These ranges are conservative estimates derived from publicly available Swiss Arbitration Centre fee data and practitioner experience. The percentage of dispute value decreases as the amount in dispute rises, reflecting the degressive nature of institutional fee scales.

How Swiss Institutions Calculate Arbitration Fees

Article 38 of the Swiss Rules of International Arbitration defines the cost items that the tribunal may fix in its final award. The Swiss Arbitration Centre applies a degressive sliding scale: as the amount in dispute increases, the marginal rate applied to each additional tranche of value decreases. Registration fees are banded and payable upon commencement. Administrative costs are calculated separately and cover the institution’s case-management overhead. The cost calculator published on the Swiss Arbitration Centre website allows parties to input the amount in dispute and the number of arbitrators to generate a minimum, middle and maximum fee estimate.

For parties considering alternative institutions, the table below offers a high-level comparison of Swiss arbitration costs against the ICC and LCIA frameworks.

Industry observers expect the Swiss Arbitration Centre’s competitive fee scales and efficient case management to continue attracting mid-market and large commercial disputes, particularly as corporate legal departments benchmark costs across top arbitration seats.

Security for Costs in Swiss-Seated Arbitrations

Security for costs in international commercial arbitration is one of the most contested procedural issues in Swiss practice. Respondents increasingly deploy security‑for‑costs applications as a strategic tool, while claimants, particularly those backed by third‑party funding, must anticipate and plan for such orders at an early stage.

Legal Basis: PILA, Swiss Rules and Tribunal Powers

The Federal Act on Private International Law (PILA), Chapter 12, governs international arbitrations seated in Switzerland. While PILA does not expressly address security for costs, it grants tribunals broad procedural discretion, including the power to order provisional and conservatory measures. The Swiss Rules of International Arbitration similarly empower arbitral tribunals to grant interim measures, which tribunals have consistently interpreted as encompassing security‑for‑costs orders. This power is exercised independently of any domestic procedural code and derives from the principle of party autonomy and the tribunal’s inherent authority to manage proceedings fairly.

Typical Grounds and Evidential Threshold

Tribunals in Switzerland typically assess security‑for‑costs applications against several overlapping criteria. The applicant must demonstrate a genuine and concrete risk that the opposing party will be unable, or unwilling, to satisfy an adverse cost award. Commonly invoked grounds include:

• Impecuniosity or insolvency risk. Evidence of the claimant’s precarious financial position, including balance-sheet insolvency, pending enforcement actions or restructuring proceedings.
• Jurisdictional indicators. The claimant’s domicile in a jurisdiction where enforcement of a Swiss cost award would be difficult or uncertain.
• Corporate structure and asset shielding. Use of special-purpose vehicles or shell entities with no substantial assets.
• Third‑party funding. The existence of a funding arrangement may be relevant, tribunals may infer that a funded claimant lacks resources of its own, although funding alone is not determinative.

The evidential threshold is generally lower than for a final determination on the merits: the applicant must show a prima facie risk rather than prove inability to pay on the balance of probabilities.

Procedure and Remedies

A security‑for‑costs request is normally made by written motion, supported by documentary evidence of the opposing party’s financial position. Tribunals typically invite the other party to respond before issuing an interlocutory order. If security is granted, the tribunal will specify the amount, the form (bank guarantee, escrow account or cash deposit) and a deadline for compliance. Non-compliance may result in the suspension or dismissal of the claim. A party that considers the order unjustified may apply to the Swiss Federal Tribunal to set aside the order, although the grounds for challenge under Article 190 PILA are narrow and courts afford tribunals wide discretion on procedural matters.

Practical Drafting Checklist for a Security‑for‑Costs Request

• Identify and document the financial risk, attach audited accounts, credit reports or evidence of enforcement difficulties.
• Specify the quantum requested and its basis (estimated adverse costs including counsel fees).
• Propose the form and custodian of security (bank guarantee or escrow with a Swiss-licensed institution).
• Set out the consequences sought for non-compliance (stay of proceedings, dismissal of claim).

Advances on Costs and Deposits: Timing, Non‑Payment and Consequences

An advance on costs in Switzerland is the primary mechanism by which arbitral institutions ensure that tribunal and administrative fees are funded before substantive proceedings begin. Under the Swiss Rules, the Swiss Arbitration Centre fixes the advance after constitution of the tribunal and invites each party to pay its equal share within a specified deadline. The advance is calculated on the basis of the estimated total cost of the arbitration, including tribunal fees and institutional administrative charges, and may be adjusted as the case develops.

Failure to pay the advance on costs carries serious consequences. If the claimant defaults, the institution may suspend or terminate the proceedings. If the respondent fails to pay its share, the claimant is typically invited to substitute the shortfall; absent full payment, the tribunal may decline to continue. In practice, non-payment by one party often leads to the other party stepping in to preserve the arbitration, creating an immediate cash-flow burden that must be factored into budgeting.

Managing Cash-Flow: Staged Deposits and Cost Forecasts

Experienced practitioners request staged advances where feasible, particularly in document-heavy or multi-phase proceedings. Some tribunals are receptive to splitting the advance into an initial deposit covering the written phase and a supplementary deposit covering the hearing and post-hearing phase. Early engagement with the institution on likely cost ranges, using the Swiss Arbitration Centre’s published calculator, allows parties to model cash-flow requirements and avoid last-minute funding gaps. Corporate legal departments should integrate advance-on-costs timelines into their quarterly financial forecasts.

Insurer-Funded vs Party-Funded Deposits

Where an insurer funds the defence under a policy obligation, deposit payments may be routed through the insurer’s claims function. This introduces additional approval and disbursement timelines that must be communicated to the institution. Practitioners handling insurer-funded deposits should confirm in advance whether the insurer will pay directly into the institution’s account or reimburse the insured, and ensure that the institution’s invoicing format is compatible with the insurer’s payment processes.

Third‑Party Funding: How Funding Affects Costs, Security Requests and Conflicts

Third‑party funding in arbitration has grown significantly in Switzerland, driven by the country’s well-established seat, high-value commercial disputes and the enforceability of Swiss awards. The interaction between TPF and the cost of arbitration in Switzerland raises distinct practical issues for both funded and non-funded parties.

Disclosure and Conflict Risk

Swiss law does not currently impose a statutory obligation to disclose the existence or identity of a third‑party funder. However, the Swiss Rules require parties to disclose the identity of any person or entity with an economic interest in the outcome of the dispute, which tribunals have interpreted as encompassing third‑party funders in certain circumstances. The practical effect is that funded parties should anticipate disclosure requests, particularly from respondents seeking to use funding as evidence in security‑for‑costs applications, and prepare disclosure positions early. Non-disclosure risks creating grounds for a challenge to an arbitrator’s independence if a conflict with the funder later emerges.

Funding and Cost Exposure: Who Pays Deposits and How Funders Handle Advances

Under a typical funding agreement, the funder agrees to pay the funded party’s share of the advance on costs, counsel fees and expert costs up to a defined budget. The funder does not become a party to the arbitration and is not directly liable for adverse cost orders. However, if the funded party loses and faces an adverse cost allocation, the funder’s contractual obligation may or may not extend to covering those costs, this depends entirely on the funding agreement’s terms. Parties entering funding arrangements should negotiate explicit provisions on adverse-cost indemnities and security‑for‑costs compliance.

Insurer Interaction and Subrogation Considerations

In disputes where an insurer both funds the defence and retains subrogation rights, the interplay with third‑party funding on the claimant side creates distinctive cost dynamics. Consider a scenario: a claimant backed by a third‑party funder brings a claim against a respondent whose defence is funded by its liability insurer. If the respondent seeks security for costs, the tribunal may examine whether the funder’s commitment provides sufficient assurance of the claimant’s ability to meet an adverse cost award. The insurer funding the defence will want visibility over the claimant’s funding structure to assess enforcement risk. Early indications suggest that tribunals are increasingly willing to order disclosure of TPF arrangements precisely to enable this assessment, though practice remains institution- and tribunal-specific.

Cost Allocation and Final Awards: What to Expect

There are no mandatory cost rules in Switzerland-seated arbitrations. Tribunals enjoy wide discretion to allocate costs in the final award, guided by the principle that costs generally follow the event, the unsuccessful party bears the costs. Article 38 of the Swiss Rules confirms this discretion, allowing the tribunal to take into account the circumstances of the case, including the parties’ conduct, the complexity of issues and the outcome on individual claims.

In practice, Swiss arbitration costs are allocated on a sliding scale of success: partial winners may recover a proportion of their costs. Tribunals also award post-award interest on cost allocations, ensuring that the successful party is compensated for the time value of funds expended. Enforcement of Swiss cost awards benefits from Switzerland’s membership of the New York Convention and the country’s strong record of judicial support for arbitral awards.

Practical Sample Clause: Cost Allocation and Security for Costs

Parties can reduce uncertainty by including cost provisions in their arbitration clause at the contract-drafting stage. A well-drafted clause might provide:

“The tribunal shall have the power to order security for costs and to allocate the costs of the arbitration, including the parties’ reasonable legal costs, in the final award. The tribunal shall apply the principle that costs follow the event, subject to its discretion to depart from that principle where the circumstances of the case so require.”

Practical Budgeting Checklist and Tools

Accurate budgeting for commercial arbitration in Switzerland requires early engagement with fee calculators, realistic assumptions about procedural complexity and contingency planning for security‑for‑costs applications. The following checklist provides a starting framework.

Quick Budgeting Template

• Step 1: Estimate tribunal and admin fees. Use the Swiss Arbitration Centre’s online cost calculator, inputting the amount in dispute and the number of arbitrators.
• Step 2: Estimate counsel and expert costs. Obtain fee estimates from prospective counsel; budget separately for party-appointed and tribunal-appointed experts.
• Step 3: Model advance-on-costs timing. Assume an initial deposit of 50–100% of estimated tribunal and admin fees within 30 days of tribunal constitution; plan for a supplementary advance if the case extends.
• Step 4: Factor in security‑for‑costs exposure. If acting as claimant, model the cost of providing a bank guarantee or cash deposit. If acting as respondent, budget for the motion and supporting evidence.
• Step 5: Include hearing and incidental costs. Hearing-room hire, court reporters, interpreters, travel and accommodation, particularly for multi-day hearings in Zurich or Geneva.
• Step 6: Add contingency. A contingency of 15–25% of the total estimated budget is prudent to cover procedural complications, additional submissions or supplementary expert reports.

For a downloadable CSV budgeting template and access to Switzerland-focused arbitration specialists, visit the Global Law Experts directory.

Conclusion and Recommended Next Steps

The cost of arbitration in Switzerland is driven by a combination of institutional fee scales, counsel and expert spend, advance-on-costs requirements and the procedural dynamics of security‑for‑costs applications and third‑party funding. Parties that engage early with fee calculators, model realistic cost scenarios and address security and funding risks at the outset will be better positioned to manage exposure and achieve efficient outcomes. For tailored guidance on budgeting, risk allocation and dispute strategy in Swiss-seated arbitrations, consult an experienced practitioner through the Global Law Experts Switzerland directory.

Sources

1. Swiss Arbitration Centre, Cost Calculator
2. Swiss Arbitration Association, Costs of Arbitration in Switzerland (2022)
3. Homburger / CMS, Swiss Rules of International Arbitration Practice Note
4. Lenz & Staehelin, Practical Law Multi-jurisdictional Guide: Arbitration
5. Global Legal Insights, International Arbitration: Switzerland
6. Federal Act on Private International Law (PILA), Consolidated Text
7. Aceris Law, Swiss Arbitration Centre Costs Explainer
8. ICC, Costs and Payments
9. LCIA, Fees and Costs