This guide is maintained as a current resource for July 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.
An in‑depth guide to responding to an employment tribunal claim using the ET3 form in England and Wales. Covers what an ET3 is, how and when to submit it, legal time limits, practical steps and risks, with clear explanations for employers, HR professionals and anyone facing a tribunal claim.
When someone brings an employment tribunal claim against you or your organisation in England and Wales, you must respond formally using the ET3 response form. This article explains what an ET3 is, why it matters, how to complete and submit it, and the practical and legal implications of the process. The content is intended for employers, HR professionals, business owners, students and members of the public. It explains the legal procedures step by step, in clear language, with practical examples and context.
What Is an ET3 Response?
An ET3 is a prescribed response form that a respondent (typically an employer, organisation or other party against whom a claim is made) must complete and return to an employment tribunal after a claimant has submitted an ET1 claim form. The ET3 sets out your response to the allegations made by the claimant, including which parts of the claim you accept, deny or intend to contest.
In tribunal language:
- Claimant is the person bringing the complaint.
- Respondent is the person or organisation the claim is made against.
- The tribunal is an independent judicial body for resolving employment disputes.
You must use the official ET3 form approved by HM Courts & Tribunals Service (HMCTS). You can respond online using the tribunal's digital service or by completing a paper form and returning it by post.
Legal and Procedural Context
Employment tribunals handle disputes such as unfair dismissal, discrimination, unlawful deductions from wages, whistleblowing claims and other workplace issues. Proceedings begin when a claimant files a claim using an ET1 form. The tribunal then issues a response pack to the respondent, which includes an ET3 and instructions.
Tribunal rules require that the respondent's position is clearly communicated so the tribunal and the claimant understand how the respondent intends to defend all or part of the claim. The ET3 becomes part of the tribunal record.
Time Limits and Deadlines
Standard Deadline
You generally have 28 days from the date the tribunal sends you the claimant's claim form to complete and return the ET3 response. This is a strict legal time limit. If you fail to respond within this period, the tribunal may treat the claim as undefended and enter a default judgment against you, which can include compensation or other orders without a hearing.
Requesting More Time
If you genuinely cannot meet the deadline-for example, because key information or documents are unavailable-you can apply in writing for an extension of time. The request must explain why you need more time and should be made as soon as possible. If the application for more time is made after the 28-day period has passed, you should include a draft response or explain why one cannot be provided. A judge will decide whether to grant any extension.
How to Complete an ET3 Form
The ET3 form requires detailed information about:
- Your name and contact details.
- The claimant's name and details.
- Your response to each part of the claim.
- Any additional facts or documents that support your position.
- Whether you intend to contest all or part of the claim.
You do not need to write detailed legal arguments. Focus on setting out your factual response, stating which allegations you accept or deny, and providing relevant dates, events, and documents. Avoid responding with general legal commentary; the tribunal and claimant will assess the arguments later.
The form can be submitted online via the tribunal's digital portal or as a signed paper copy delivered by post to the appropriate tribunal office. Keep copies of everything you submit.
Practical Considerations
Documentary Evidence and Chronologies
Supporting documents (such as employment contracts, correspondence, performance records or policies) can be referenced in your ET3. If extensive documentation exists, identify key evidence clearly and provide it in an organised way. Many respondents include a chronology of events to help the tribunal follow the factual timeline.
Early Conciliation and Acas
Before a claim reaches the tribunal, parties usually engage in early conciliation with the Advisory, Conciliation and Arbitration Service (Acas). Once an ET3 is submitted, a copy is typically sent to Acas, which may attempt further conciliation to resolve the dispute without a hearing.
Settlement Offers
Even after a tribunal claim is made and an ET3 submitted, you can offer a settlement at any stage. Settlement agreements or offers can be discussed directly with the claimant or facilitated by Acas and may reduce time, cost and risk.
What Happens After You Submit an ET3
Once accepted, the tribunal will send the claimant a copy of your response. The case then enters case management, where directions are set for exchanging documents, witness statements, and possibly holding a preliminary hearing. A hearing date will be scheduled.
If your response is incomplete or submitted late without an agreed extension, the tribunal may not accept it. The tribunal can then proceed as though you did not file a response, which may lead to a default judgment.
Common Issues and Risks
Missing the Deadline
Failing to respond within the 28-day limit without an extension request almost always leads to a default judgment. This means the claimant may secure remedies without you defending the claim.
Incomplete Form
If the ET3 does not include the minimum required information, it may be returned and not accepted. This can significantly delay your defence and may also risk a default judgment.
Accuracy and Evidence
An inaccurate response or one that lacks supporting evidence can weaken your position at a hearing. Ensure factual accuracy, consistency, and that significant documents are identified in your response.
Key Takeaways
Responding effectively to an employment tribunal claim with the ET3 form is essential to protect your legal position. Key points are:
- An ET3 is the official response form used in employment tribunal proceedings.
- You normally have 28 days from receipt of the claimant's form to submit your response.
- Respond online or by post using the approved form.
- A late or missing response can lead to default judgment against you.
- Ask for an extension in writing if needed.
- Be factual and organised; reference documents and provide clear denials or admissions.
- After submission, case management and a hearing process begin.
This guide provides a structured approach to completing and submitting an ET3, with a focus on legal norms in England and Wales.
