This guide is maintained as a current resource for September 2026 and covers only the laws of England and Wales. Information is for general guidance, not legal advice. Consult a qualified solicitor for advice specific to your situation.
Comprehensive guide to challenging arbitration awards in business disputes under English law. Explains legal grounds, procedures under the Arbitration Act 1996, time limits, court steps, and practical considerations for parties seeking to set aside or appeal arbitration awards in England and Wales.

Arbitration is a widely used method of resolving business disputes because it is intended to be final, efficient, and confidential. An arbitration award is the decision made by the arbitrators and, in most cases, is binding on the parties. However, there are limited circumstances under which a party can challenge that award in the courts of England and Wales. This article explains when and how such challenges can be made, what legal grounds exist, what procedural steps are involved, and important practical considerations for businesses and their advisors.
What It Means to Challenge an Arbitration Award
When a dispute between businesses is resolved through arbitration, the tribunal issues an award setting out the outcome. Parties generally agree that this decision is final. However, if one party believes the award is legally flawed, procedurally unfair, or otherwise defective, that party may seek to challenge the award in the English courts. A successful challenge can result in the award being set aside, varied, or remitted back to the tribunal for reconsideration.
Challenging an award is distinct from seeking enforcement of an award (which is used when a party refuses to comply with its terms). This article deals with how to contest the validity of the award itself in England and Wales.
Legal Framework Governing Challenges
The principal legislation is the Arbitration Act 1996 (the Act). The Act sets out the limited grounds on which a party can ask the court to intervene and alter or annul the award. It balances respect for the finality of arbitration with protections against procedural injustice.
Court procedures are governed by Part 62 of the Civil Procedure Rules (CPR), which sets out how to make an application, time limits, and procedural requirements.
Grounds for Challenging an Award
Under the Arbitration Act 1996, there are three main legal grounds for challenging an arbitration award:
1. Lack of Substantive Jurisdiction (Section 67)
A party can challenge an award if the tribunal lacked the substantive jurisdiction to decide the dispute. This can arise where:
- The arbitration agreement was invalid;
- The tribunal was not properly constituted;
- The tribunal exceeded the scope of the arbitration agreement.
A jurisdiction challenge can be raised against a final award or, in some cases, against a preliminary ruling on jurisdiction.
If successful, the court may confirm the award, vary it, remit it back to the tribunal, set it aside, or declare it of no effect.
2. Serious Irregularity (Section 68)
An award may be set aside if there has been a serious irregularity in the arbitration process that has caused, or will cause, substantial injustice. The Act defines an exhaustive list of potential irregularities, which may include:
- A tribunal failing to act fairly and impartially;
- Failure to adopt procedures agreed by the parties;
- The tribunal not dealing with all issues submitted to it;
- The award containing uncertainty or ambiguity;
- The award being procured by fraud or otherwise contrary to public policy.
These irregularities must be significant and not merely minor errors. Courts in England and Wales adopt a strict approach to avoid substituting their judgment on the merits of disputes that were properly resolved through arbitration.
3. Appeal on a Question of Law (Section 69)
A party may also appeal an award on a question of English law arising out of the award. This ground is not mandatory and can be excluded by agreement. Many institutional arbitration rules (such as those of the London Court of International Arbitration (LCIA) or International Chamber of Commerce (ICC)) exclude this right.
Where it applies, the court can confirm, vary, remit, or set aside the award based on the legal question. The court will assess whether the legal conclusion was “obviously wrong” or of general public importance and open to serious doubt.
Time Limits for Challenging an Award
A challenge or appeal must generally be made within 28 days from:
- The date the award was published;
- Or if there has been a corrigendum or additional award, from the date of that decision.
Time limits may be extended by the court in exceptional circumstances, but parties must act promptly and provide cogent reasons for delay.
Practical Steps to Challenge an Award
1. Confirm Grounds and Exhaust Internal Remedies
Before approaching the court, a party should:
- Review the arbitration agreement and institutional rules for any internal appeal or correction procedures;
- Consider whether correction or interpretation by the tribunal under Section 57 of the Act might resolve concerns.
Internal remedies must generally be exhausted before a court challenge.
2. Prepare and File Court Application
A challenge is initiated by filing an arbitration claim form (usually Form N8) in the Commercial Court or appropriate division of the High Court. Supporting evidence should include copies of the arbitration agreement, the award, and a detailed statement of the legal and factual basis for the challenge.
3. Court Hearing and Potential Outcomes
The court will consider the arguments and may decide to:
- Dismiss the challenge and uphold the award;
- Set aside the award in whole or in part;
- Remit the award to the tribunal for reconsideration;
- Declare the award of no effect.
Proceedings are usually in private, except where a preliminary point of English law is under appeal.
Risks, Costs, and Practical Considerations
Limited Scope and High Threshold
Challenges to awards are rarely successful. English courts adopt a robust pro‑arbitration approach and are cautious about intervening in matters that parties agreed to resolve through arbitration.
Impact on Enforcement
If an award is successfully set aside, it may no longer be enforceable. A party defending enforcement proceedings before a court might raise the fact that a challenge has been filed or is pending.
International Arbitration Context
For awards seated outside England and Wales, challenges are typically made in the courts of the seat of arbitration, not in England and Wales. If enforcement in England and Wales is sought after a foreign challenge, domestic courts may consider the outcome of those proceedings.
Key Takeaways
Challenging an arbitration award in business disputes in England and Wales is possible but subject to narrow grounds under the Arbitration Act 1996. Challenges must be made promptly, are limited to jurisdictional errors, serious procedural irregularities, or questions of law, and are generally pursued through the High Court. Given the high threshold for success and strict procedural requirements, careful preparation is essential. Understanding these issues helps businesses assess whether a challenge is justified and how to navigate the court process effectively.