Employers' Duty to Respond to Tribunal Claims

When an employee or worker brings a claim to an Employment Tribunal, employers (referred to in the proceedings as the respondent) have specific legal duties to respond effectively and within set procedural requirements. Failing to respond properly can lead to default judgments, loss of opportunity to defend claims and additional legal consequences. This article explains the employer's responsibilities from receiving a claim through to responding and engaging with the tribunal process. It is written for employers, HR professionals, legal students and members of the public seeking a clear understanding of the subject.

What It Means to Be Served With a Tribunal Claim

An Employment Tribunal claim begins when a worker (the claimant) submits a claim form (ET1) after exhaustion of Acas Early Conciliation or an exemption applies. The tribunal will then serve the claim on the employer with an accompanying response pack or response form (ET3).

Once served, the employer must engage with the tribunal system and respond in accordance with statutory time limits and prescribed procedures. This ensures the employer can defend the claim, present legal arguments and evidence, and participate fully in the tribunal process.

Time Limits and Deadlines for Response

28‑Day Response Deadline

The primary duty on employers is to submit a response within 28 days of receiving the claimant's ET1 form from the tribunal. The deadline is calculated from the date the tribunal sends the claimant's documents. Fulfilling this timeline is critical: if an employer does not respond in time, the tribunal may proceed without considering their defence and may issue a decision against them.

Requesting an Extension

If more time is needed to prepare a response, an employer may apply to the tribunal for an extension of the deadline. This must be done in writing and should include the reasons why extra time is required, such as needing information from key witnesses who are unavailable. If the tribunal grants the extension, the response must then be submitted within the newly agreed period.

Tribunals will consider requests for extensions based on their discretion. A request made after the 28‑day period may require additional justification or a draft response.

Preparing and Submitting the ET3 Response

Completing the ET3 Form

The formal response is made on Form ET3 or via the tribunal's online system. The response must include:

• The employer's full name and address;
• An indication of whether they resist (defend) all or part of the claim;
• A summary of factual and legal reasons for resisting the claim;
• Any defences or explanations relevant to the allegations.

The tribunal will not accept a response unless it is on the prescribed form and includes the minimum required information. If the form is incomplete or incorrect, it may be returned, potentially exposing the employer to a default judgment.

Submission Methods

Employers can usually submit the ET3 online through the HMCTS portal or by post or hand delivery to the tribunal office. If the employer (or their legal representative) has a MyHMCTS account, they will often use that portal to respond.

Recent procedural updates emphasise digital submissions, particularly when represented by a solicitor. In some cases, exceptions will be made where technical issues prevent online filing.

What Happens After a Response Is Submitted

Tribunal and Claimant Notification

Once the tribunal accepts the employer's ET3 response, it sends a copy to the claimant and usually to Acas to explore possible conciliation. This occurs even if early conciliation previously took place. The tribunal may encourage settlement negotiations at this stage.

Case Management and Preparation

After the response is lodged, the tribunal may issue case management directions, setting deadlines for:

• Exchange of documents and evidence;
• Witness statements;
• Requests for orders or applications (for example, witness attendance orders); and
• Preliminary hearings to clarify issues before the main hearing.

Both parties are obliged to share relevant documents, including those that may support the other side's case. This process, often called disclosure, helps ensure the tribunal can fairly assess the evidence.

Consequences of Failing to Respond

Default Judgment

If the employer does not submit a response in time and has not obtained an extension, the tribunal may proceed without their defence. This often results in a default judgment in the claimant's favour, meaning the employer loses the opportunity to contest the claim in full.

In such circumstances, the tribunal may still hold a limited hearing to determine remedies (such as compensation), but the substantive defence issues may be decided without the employer's input.

Rejection of Response

If a response is submitted on the wrong form, contains insufficient information or is submitted late without an approved extension, the tribunal may reject the response. The employer is usually notified and can apply for reconsideration, but this can delay proceedings and weaken their defence position.

Practical Steps for Compliance

Track Deadlines Carefully

From the moment the tribunal serves the ET1, employers must monitor the 28‑day deadline closely and plan internal steps to collect information, witness accounts and legal analysis in good time. Early coordination helps avoid rushed or incomplete responses.

Provide Full and Clear Responses

An effective ET3 should not be a simple denial or admission; it should address each allegation, explain the facts and outline any legal defences. Attaching or referencing relevant documents improves clarity and prepares the case for next stages.

Communicate With the Claimant

Practices such as copying correspondence and ensuring the claimant receives responses and related communications help maintain transparency and comply with tribunal procedural rules. This includes informing all parties of any applications for extensions or disputes over documentation.

Consider Early Settlement Options

Even after a claim is served, employers can offer settlement agreements or agree compensation with the claimant at any stage. Settling outside a tribunal hearing can reduce costs, time and reputational risk.

Seek Professional Advice

Employment law and tribunal procedure involve detailed technical requirements. Many employers work with solicitors or HR professionals to ensure their response meets legal standards and supports effective case management.

Common Questions About Responding to Tribunal Claims

Can an employer respond after the 28‑day deadline?
Yes, but they must apply to the tribunal for an extension and provide clear reasons. The tribunal may grant extra time at its discretion if justified.

What if the response is incomplete?
Responses lacking mandatory information or on incorrect forms can be rejected and treated as if no response was submitted, exposing the employer to default judgment.

Can responses be submitted digitally?
Most employers and representatives now submit ET3 responses via the MyHMCTS online portal, though alternative submission methods remain available where necessary.

Key Takeaways

Responding to an Employment Tribunal claim is a key legal duty for employers in England and Wales. Employers must:

• Respond within 28 days of service of the claim;
• Use the ET3 form or approved online method;
• Provide accurate information and state whether they contest the claim;
• Apply for extensions when necessary; and
• Comply with tribunal directions and procedural rules.

Failing to respond properly can lead to default judgments and loss of opportunity to defend the case. Effective compliance protects legal rights, supports case strategy and enhances the employer's position throughout the tribunal process.