A Warsaw-based technology company signs a distribution agreement with a German partner. The contract contains a one-line arbitration clause copied from a template. Three years later, a dispute arises. The clause names an institution that no longer accepts commercial cases. The seat is ambiguous. The governing law is unstated. What should have been a streamlined private process becomes a procedural quagmire lasting two years before the parties even reach the merits.

Arbitration clauses in Polish contracts are governed by the Kodeks postępowania cywilnego (Code of Civil Procedure, KPC), which requires a written agreement designating arbitration as the chosen dispute resolution method. A defective clause – one that omits the seat, misstates the institution, or fails to specify the scope of disputes – is unenforceable under Polish law. Courts regularly refuse to stay proceedings when faced with a poorly drafted clause, directing parties back to state litigation regardless of their original intent.

This page explains how to draft an arbitration clause that actually works in a Polish context. It covers the legal framework, the common drafting errors that invalidate clauses, cross-border considerations for foreign investors, and the practical checklist your legal team needs before signing. The structure follows the path from regulatory foundation through to enforcement strategy.

What legal framework governs arbitration clauses in Polish contracts?

Polish arbitration law sits within the Code of Civil Procedure and largely mirrors the UNCITRAL Model Law. That alignment matters for foreign parties. It means that fundamental concepts – separability of the arbitration agreement, kompetenz-kompetenz, and interim measures – operate in ways recognisable to practitioners from most commercial jurisdictions. The National Court Register (Krajowy Rejestr Sądowy, KRS) plays no direct role in arbitration, but it is the reference point for verifying the legal capacity of Polish counterparties before a clause is signed.

The Polish framework imposes three hard requirements for a valid arbitration clause. First, the agreement must be in writing – email exchange satisfies this, but an oral agreement does not. Second, the clause must cover a "dispute" that is arbitrable under Polish law: property claims and selected non-property claims qualify, while certain family law and labour matters do not. Third, the clause must be sufficiently certain to be enforced. Vague language such as "disputes may be submitted to arbitration" has been treated by Polish courts as optional rather than mandatory, effectively nullifying the clause.

Two permanent arbitration institutions dominate the Polish market. The Court of Arbitration at the Polish Chamber of Commerce (Sąd Arbitrażowy przy Krajowej Izbie Gospodarczej, SA KIG) in Warsaw is the largest. The Lewiatan Court of Arbitration (Sąd Arbitrażowy Lewiatan) is the second major option. Both publish model clauses. Using a model clause from the chosen institution, rather than drafting from scratch, eliminates the most common institutional reference errors. Parties selecting international arbitration frequently opt for ICC, VIAC, or SCC rules – all are enforceable in Poland under the New York Convention, to which Poland has been a signatory since 1961.

One figure to hold in mind: Polish courts have a 14-day window to rule on a request to stay proceedings in favour of arbitration once a party raises the arbitration defence. Missing that procedural moment forfeits the right to compel arbitration in that proceeding. The clock starts on the first substantive response, not the service of proceedings.

What drafting errors make an arbitration clause unenforceable in Poland?

Most failed clauses share the same cluster of defects. The seat is either omitted or described in terms that are geographically ambiguous ("Central Europe" has appeared in real contracts). The institution is named incorrectly – often an outdated name or a non-existent body. The scope is undefined, leaving it unclear whether pre-contractual claims, tortious claims, or claims by and against affiliates fall within the clause. Each defect independently gives a Polish court grounds to treat the clause as void.

Seat selection deserves particular attention. The seat determines the supervisory jurisdiction. A Warsaw seat means the Regional Court in Warsaw (Sąd Okręgowy w Warszawie) supervises the proceedings, handles challenges to arbitrators, and rules on interim measures. A Krakow seat shifts that supervisory role to the Regional Court in Krakow. For cross-border contracts, the seat also determines which country's courts will issue an enforcement order before the award is recognised abroad. Choosing Warsaw as the seat when the counterparty's assets are entirely outside Poland may add an unnecessary enforcement step.

We secured a reversal of a flawed arbitration clause challenge for a manufacturing client in the Mazowieckie region (autumn 2025). The opposing party had argued that the clause was void because it referenced a superseded version of the SA KIG rules. The court accepted our argument that the institution was identifiable by its current name and that the clause was severable from the rule-version error. The client avoided 18 months of parallel state court proceedings.

Three further errors appear with regularity:

  • Failing to specify the number of arbitrators (odd numbers only – one or three is standard)
  • Omitting a language clause in contracts between parties from different jurisdictions
  • Inserting a tiered dispute resolution clause without specifying the precise trigger for escalation to arbitration

Tiered clauses – those requiring negotiation or mediation before arbitration – are enforceable in Poland, but only if the pre-arbitration steps are defined with measurable precision. A clause requiring "good-faith negotiations for a reasonable period" has been held unenforceable because neither the duration nor the good-faith standard was objectively verifiable. Replace "reasonable period" with a fixed number of days – 30 or 60 is standard practice.

How should cross-border contracts approach arbitration clause drafting?

For a German investor entering the Polish market, the choice between domestic and international arbitration is not purely procedural. It determines the language of proceedings, the pool of available arbitrators, the enforceability pathway, and the cost structure. International clauses typically add EUR 15,000 to EUR 40,000 in institutional fees compared with domestic SA KIG proceedings for mid-range disputes. That cost differential should appear explicitly in the contract negotiation, not surface as a surprise after a claim is filed.

Governing law and arbitration seat are legally independent choices but commercially linked. A contract governed by Polish law with a Vienna seat is perfectly valid. But it creates a situation where the arbitral tribunal applies Polish substantive law while Polish courts have no supervisory jurisdiction. That can create friction when interim measures are needed quickly – a Vienna-seated tribunal's order for interim measures requires separate recognition in Poland before local courts will enforce it. Where assets are in Poland, a Warsaw seat with Polish governing law produces the most direct enforcement path.

Sanctions compliance has become a live issue in cross-border arbitration drafting. Contracts involving parties from sanctioned jurisdictions, or performance obligations that touch sanctioned territories, now routinely include a carve-out clause suspending arbitration obligations during the period of applicable sanctions. Without such a carve-out, a party may find itself in breach of sanctions law by simply participating in arbitration proceedings. Our internal investigations methodology guide addresses how sanctions exposure is identified before it reaches the dispute stage.

The New York Convention enforceability chain is worth tracing for each counterparty jurisdiction before finalising the clause. Poland enforces awards from all 172 Convention member states. But enforcement in the counterparty's home jurisdiction may be subject to public policy reservations that effectively block recovery. For UAE counterparties specifically, our analysis of enforcing a UAE judgment in Poland illustrates how the recognition framework operates in practice – the same principles apply in reverse when a Polish award must be enforced in Dubai.

When does a KIO appeal or public procurement dispute affect arbitration clause strategy?

Public procurement contracts in Poland present a specific problem. The National Appeals Chamber (Krajowa Izba Odwoławcza, KIO) handles pre-award procurement disputes. It is a mandatory administrative forum – arbitration clauses cannot displace KIO jurisdiction over procurement complaints. But once a contract is awarded and signed, post-award disputes about contract performance are a different matter. Those disputes can be subject to arbitration if the parties include a valid clause in the contract itself.

The distinction matters because many procurement contracts use standard government templates that either omit an arbitration clause entirely or include a state-court clause by default. A contractor that wants arbitration must negotiate the clause into the contract at the drafting stage. After signature, inserting an arbitration clause requires a formal written amendment – and the contracting authority may refuse. The window to act is narrow: typically 30 days between contract award and signature.

We obtained interim measures protecting assets worth over EUR 3m for a construction contractor in Lower Silesia (spring 2026) where the post-award contract contained a properly drafted arbitration clause but the counterparty argued the KIO process had extinguished it. The arbitral tribunal rejected that argument. The KIO process and the post-award arbitration clause operate on separate tracks.

Dispute lawyers advising on public sector contracts should treat arbitration clause strategy as part of the bid preparation process, not an afterthought. The arbitration clause, the choice of institution, and the seat selection should all be resolved before the tender response is submitted. Changing those terms after award is structurally difficult and sometimes impossible under procurement rules.

What practical checklist applies before signing a Polish arbitration clause?

A well-drafted arbitration clause resolves five questions before the contract is signed. Miss any one of them and the clause may be unenforceable or operationally dysfunctional when a dispute actually arises. The checklist below reflects the issues that most commonly generate litigation about the clause itself – before the underlying dispute is even heard.

  • Institution: confirm the full current name and verify that the institution accepts cases of the relevant contract type and value
  • Seat: specify a city, not a country; confirm that local courts in that city have experience supervising arbitration proceedings
  • Number of arbitrators: state one or three explicitly; avoid silence on this point
  • Language: specify the language of proceedings, particularly in contracts between parties from different jurisdictions
  • Scope: define which disputes are covered – include pre-contractual claims, claims by affiliates, and tortious claims if intended

Beyond the clause itself, parties should verify the legal capacity of their counterparty through the KRS before signing. An arbitration clause signed by a person without authority to bind the company is void. Polish courts have refused to enforce awards where the original clause lacked proper corporate authorisation on one side. Checking the KRS extract costs nothing and takes under ten minutes.

Decision matrix for selecting the arbitration format:

For domestic disputes under PLN 2m involving Polish parties only, a single-arbitrator SA KIG proceeding is cost-effective and procedurally fast – typically resolved within 12 months. For cross-border disputes between EUR 500,000 and EUR 5m, ICC arbitration with a Warsaw seat balances international credibility with local enforcement efficiency. For disputes above EUR 5m with significant international complexity, ICC or LCIA rules with a neutral European seat provide the widest arbitrator pool and the strongest institutional support.

Enforcement of a foreign arbitral award in Poland requires an application to the Regional Court – the process typically takes 3 to 6 months and involves a public policy review. Our guide on enforcing a Luxembourg judgment in Poland walks through the recognition procedure in detail; the arbitral award enforcement process follows a parallel structure.

For a manufacturing client, the priority is usually speed and certainty: a domestic clause with SA KIG rules, Warsaw seat, and a 30-day pre-arbitration negotiation trigger works well. For an IT company with international IP disputes, a clause providing for ICC arbitration in English, with a neutral seat and three arbitrators, protects against home-court advantage concerns. For a foreign investor, the key addition is a clear governing law clause and an express confirmation that the arbitration agreement is governed by the same law as the main contract.

Specific situation requiring immediate attention: if your existing contracts contain arbitration clauses drafted more than five years ago, they may reference superseded institutional rules or defunct bodies. An audit of your clause portfolio – reviewing seat, institution, scope, and language – takes one to two days and eliminates the risk of discovering a void clause at the worst possible moment.

To receive an expert assessment of your arbitration clause portfolio, contact info@kordeckipartners.com.

Frequently asked questions

Q: Can an arbitration clause be added to a contract after it has been signed?

A: Yes, but it requires a written amendment signed by all parties with authority to bind their respective entities. The amendment must satisfy the same formal requirements as the original arbitration agreement under the Code of Civil Procedure. Retroactive clauses – purporting to cover disputes that arose before the amendment was signed – are generally unenforceable in Poland unless the parties expressly agree otherwise.

Q: How long does a typical SA KIG arbitration take, and what does it cost?

A: A single-arbitrator SA KIG proceeding for a dispute in the PLN 500,000 to PLN 2m range typically concludes within 12 to 18 months. Institutional fees are calculated as a percentage of the amount in dispute, generally ranging from 1.5% to 3% of the claim value, with a minimum fee of approximately PLN 3,000. Legal costs and arbitrator fees are additional. Three-arbitrator panels add cost and time but are standard for disputes above PLN 5m.

Q: Does including an arbitration clause prevent parties from seeking interim measures from Polish courts?

A: No. Under Polish procedural law, parties to an arbitration agreement retain the right to apply to state courts for interim measures at any stage – before, during, or after arbitration proceedings. The arbitration clause does not waive that right. In practice, parties often seek court-ordered interim measures at the outset of a dispute, then transfer the merits to arbitration. The two tracks run in parallel without conflict.

KORDECKI & Partners is a law firm based in Warsaw and Krakow, advising business clients across 30 jurisdictions. Our team combines expertise in Polish and international law with a practical approach to commercial disputes, arbitration clause drafting, and cross-border enforcement. We work with Polish entrepreneurs, foreign investors, and in-house legal teams. To discuss your situation, contact info@kordeckipartners.com.

Disclaimer: This publication is provided for informational purposes only and does not constitute legal advice. The information herein should not be relied upon as a substitute for professional legal counsel tailored to your specific circumstances. KORDECKI & Partners assumes no liability for actions taken or not taken based on the contents of this material. For advice regarding your particular situation, please contact info@kordeckipartners.com.