On 1 August 2025, the Arbitration Act 2025 came into force, marking the most significant update to the UK’s arbitration framework in nearly three decades. Building on the Arbitration Act 1996, these reforms modernise procedures, enhance efficiency, and reinforce London’s position as a global leader in dispute resolution. For commercial parties operating in the capital, the changes bring clarity, speed, and a more predictable path to resolving disputes.
Key Changes Impacting London-Based Arbitrations
- Codification of Summary Disposal Powers
The Act gives arbitrators express authority to dismiss claims or defences with no real prospect of success. While this power existed in practice, it was never clearly stated in legislation, which led to caution in its use. Now, arbitrators can resolve clearly unmeritorious matters quickly, aligning arbitration more closely with English court procedure and saving parties significant time and cost.
- Clarification of Governing Law for Arbitration Agreements
A new Section 6A confirms that the law governing an arbitration agreement is either:
- The law expressly agreed by the parties; or
- If no agreement is made, the law of the seat of arbitration (often English law).
This change overturns the precedent set by the Supreme Court in Enka v Chubb and UniCredit v RusChemAlliance, which had applied the governing law of the main contract to the arbitration clause. The new rule ensures that English-seated arbitrations benefit from England’s arbitration-friendly legal principles.
- Streamlined Jurisdictional Challenges
Under the revised Section 67, courts will no longer re-hear evidence already considered by the tribunal in jurisdictional disputes. This removes duplication, reduces delays and procedural inefficiencies, making arbitration more predictable and cost-effective.
- Enhanced Certainty and Efficiency
These reforms collectively enhance the certainty, speed, and efficiency of arbitration proceedings in London. For commercial parties, this means greater confidence in choosing London as the seat of arbitration, knowing that the legal framework supports swift and fair resolution of disputes.
When Can a Case Be Summarily Dismissed?
To dismiss a case under the new rules:
- Application by a Party: A party must make an application; arbitrators cannot initiate the process on their own.
- Standard of Review: The test is whether the claim or defence has “no real prospect of success”, a lower threshold than some institutional rules.
- Procedural Safeguards: While the Act empowers arbitrators to act swiftly, they must still ensure procedural fairness. Parties must be given a fair chance to present their arguments before dismissal.
For London’s commercial community, this provides a fast, cost-effective tool for dealing with weak claims while preserving procedural fairness.
Practical Takeaways for Businesses in London
These reforms are designed to make arbitration in London more certain, efficient, and cost-effective. Arbitrators can now eliminate frivolous claims early and parties may strategically use this mechanism to pressure opponents with weak claims or defences. Businesses, particularly lenders, financial institutions, and large corporates, should review their arbitration clauses and ensure that any institutional rules used are aligned with the new statutory standards.
Conclusion
The Arbitration Act 2025 marks a forward-looking reform for London’s arbitration landscape. By clarifying governing law rules, streamlining procedures, and empowering arbitrators to deal with weak claims early, the Act reinforces London’s status as a premier seat for dispute resolution.
Now is the time for commercial parties to update their contracts and take full advantage of the new framework. If your business operates in London and relies on arbitration to resolve disputes, Frei Solicitors can help ensure your agreements are fully aligned with the new Act. Contact us today to arrange a consultation.
