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.
ET3 Employment Tribunal Response Form Guidance explaining how employers and respondents complete and submit ET3 forms in UK Employment Tribunal cases. Covers deadlines, legal requirements, jurisdictional issues, defence preparation, and consequences of non-response in England and Wales.

The ET3 form is the official response form used in Employment Tribunal proceedings in England and Wales. It is completed by a respondent (usually an employer or organisation) after receiving an ET1 claim form from an employee or claimant.
The ET3 sets out the respondent's formal position on the claim, including whether the claim is accepted or defended, the factual background, legal arguments, and any jurisdictional objections. It is a critical document because it shapes how the case will proceed and identifies the issues the Tribunal must decide.
Failure to submit a properly completed ET3 within the required time limit can result in a default judgment being entered against the respondent.
What the ET3 Form Is
The ET3 is the Employment Tribunal Response Form used to:
- Confirm whether the claim is accepted or contested
- Set out the respondent's version of events
- Raise legal and procedural objections
- Identify jurisdictional issues
- Provide initial information about remedy and compensation disputes
It is submitted after the respondent receives the ET1 claim form from the Tribunal.
The ET3 forms part of the core pleadings in a case and is used by the Tribunal to define the issues in dispute.
Time Limit for Submitting an ET3
Standard deadline
A respondent normally has 28 days from the date the ET1 is sent by the Tribunal to submit the ET3.
The deadline is strict and calculated from the date of service, not the date of receipt in all cases.
Extensions of time
The Tribunal may allow an extension of time to submit an ET3, but only if:
- A valid reason is provided
- The application is made promptly
- There is no significant prejudice to the claimant
- The interests of justice justify it
Late submissions without permission can result in the claim proceeding undefended.
Consequences of Not Filing an ET3
If an ET3 is not submitted on time:
- The Tribunal may issue a default judgment
- The claimant may succeed without a hearing
- Liability may be established without the respondent's input
- Compensation may be determined without a defence
A default judgment can still sometimes be set aside, but only where strict legal tests are met, such as a reasonable excuse or a strong defence with merit.
Structure of the ET3 Form
The ET3 form is structured to gather key legal and factual information. Typical sections include:
1. Respondent details
- Employer name
- Address
- Contact details
- Legal representative (if applicable)
2. Response to the claim
The respondent must state whether:
- The claim is accepted in full
- The claim is contested in full
- The claim is partially admitted and partially defended
3. Grounds of resistance
This is the most important section. It sets out:
- The factual defence to the claim
- The legal basis for resisting liability
- Any explanation of dismissal, conduct, or employment decisions
- Relevant policies or procedures relied upon
4. Jurisdictional objections
These may include:
- Claim submitted out of time
- Lack of qualifying employment status
- Failure to complete ACAS Early Conciliation
- Incorrect respondent named
- Settlement or waiver arguments
5. Remedy response
The respondent can dispute:
- Compensation amounts
- Financial losses claimed
- Reinstatement or re-engagement requests
ACAS Early Conciliation and ET3 Requirements
Before an ET1 claim can proceed, the claimant must usually complete ACAS Early Conciliation.
The ET3 form requires confirmation of:
- Whether an ACAS Early Conciliation Certificate has been issued
- The certificate number
- Any settlement discussions that took place
Failure to comply with ACAS requirements may affect whether the Tribunal accepts jurisdiction.
Grounds of Resistance in Detail
The grounds of resistance section is central to the ET3. It should:
- Respond directly to each allegation in the ET1
- Provide a clear factual narrative from the respondent's perspective
- Reference relevant policies, procedures, or documentation
- Identify lawful reasons for dismissal or treatment (if applicable)
Common defence arguments include:
- Fair dismissal following disciplinary procedure
- Redundancy process was genuine and fair
- No discrimination occurred
- Employee was not an employee (worker status dispute)
- No unlawful deduction of wages occurred
The Tribunal uses the ET3 to identify disputed issues for hearing.
Jurisdictional Challenges
Respondents may use the ET3 to argue that the Tribunal does not have jurisdiction to hear the claim.
Common jurisdictional arguments include:
Time limits
Most Employment Tribunal claims must be submitted within strict statutory deadlines, often three months less one day from the act complained of, subject to ACAS Early Conciliation extensions.
Employment status
The respondent may argue the claimant is not an employee or worker under UK law.
Out-of-time claims
Claims submitted late may be struck out unless it is “just and equitable” to extend time.
Settlement agreements
A valid settlement agreement may prevent a claim proceeding.
How the ET3 Is Submitted
The ET3 can usually be submitted:
- Online via the Employment Tribunal portal
- By post (in some cases)
- Through legal representatives
The Tribunal will acknowledge receipt and forward a copy to the claimant.
Electronic submission is the most common method.
Importance of Accuracy in the ET3
The ET3 is a formal legal document. Accuracy is essential because:
- It forms part of the Tribunal record
- It defines the issues for hearing
- It may be used in cross-examination
- Inconsistencies can affect credibility
Statements made in the ET3 should align with later witness evidence and documents disclosed during proceedings.
Relationship Between ET3 and Case Management
Once an ET3 is submitted, the Tribunal will typically:
- Review the claim and response
- Identify disputed issues
- Issue case management orders
- Set deadlines for disclosure and witness statements
- Schedule a final hearing
The ET3 therefore plays a key role in shaping the procedural direction of the case.
Common Errors in ET3 Responses
Typical mistakes include:
1. Missing the deadline
Late submission without permission can lead to default judgment.
2. Incomplete defence
Failing to respond to all allegations may weaken the defence.
3. Lack of detail
Vague responses can reduce credibility and effectiveness.
4. Inconsistent factual accounts
Differences between the ET3 and later witness statements can be challenged.
5. Failure to raise jurisdictional issues early
Some objections may be lost if not raised promptly.
After the ET3 Is Submitted
Once the ET3 is filed:
- The claimant receives a copy
- The Tribunal begins case management
- Both parties prepare for disclosure and evidence exchange
- Preliminary hearings may be listed if needed
The case progresses towards final hearing unless settled.
Settlement After ET3 Submission
Even after an ET3 is filed, settlement remains possible through:
Settlement can lead to withdrawal or dismissal of the claim.
Practical Guidance for Completing an ET3
A structured approach includes:
- Reviewing the ET1 claim carefully
- Identifying each allegation separately
- Gathering relevant documents early
- Drafting a clear factual response
- Raising jurisdictional issues immediately
- Ensuring consistency with future witness evidence
- Submitting within the 28-day deadline
Key Risks in ET3 Responses
Failure to handle the ET3 correctly may result in:
- Default judgment against the respondent
- Increased compensation liability
- Loss of opportunity to defend the claim
- Procedural disadvantage throughout the case
- Adverse findings due to inconsistent evidence
Final Thoughts
The ET3 Employment Tribunal Response Form is a fundamental document in Employment Tribunal proceedings. It sets out the respondent's defence, identifies disputed issues, and establishes the legal and factual framework of the case.
Strict time limits apply, and failure to respond properly can result in serious legal consequences, including default judgment. A well-prepared ET3 should address each allegation clearly, raise relevant jurisdictional issues, and provide a coherent factual defence supported by available evidence.
Understanding the ET3 process is essential for navigating Employment Tribunal claims effectively and ensuring that a respondent's position is properly presented from the outset.