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.
Step-by-step guide to submitting an ET1 form for a dismissal dispute in the UK, explaining Acas Early Conciliation, tribunal time limits, Section 8.2 particulars of claim, required information, and the Employment Tribunal process for unfair and wrongful dismissal claims.

An Employment Tribunal claim in England and Wales is started using the ET1 form. This is the formal document used to bring claims such as unfair dismissal, wrongful dismissal, constructive dismissal, and related dismissal disputes against an employer. The form is issued by the Employment Tribunal service operated through His Majesty's Courts and Tribunals Service (HMCTS).
For dismissal-related disputes, the ET1 form is the central pleading document. It sets out the facts, identifies the legal basis of the claim, and defines what the tribunal will consider at the hearing. Errors or omissions at this stage can affect how the case proceeds.
What the ET1 form is used for
The ET1 form is the legal starting point of an Employment Tribunal claim. It is used to:
- Commence proceedings against an employer or former employer
- Set out the factual background of the dismissal dispute
- Identify legal claims such as unfair dismissal or breach of contract
- Provide details of loss and compensation sought
- Notify the tribunal of the parties involved
The form can be submitted online through the official tribunal system or, in limited cases, using a paper form issued by HMCTS.
Legal framework for dismissal disputes
Dismissal disputes submitted via ET1 typically fall into two main categories:
Unfair dismissal
A statutory claim under the Employment Rights Act 1996, focusing on whether the employer acted reasonably in dismissing the employee.
Wrongful dismissal
A contractual claim based on breach of contract, usually involving:
- Failure to give proper notice
- Failure to pay notice pay
- Breach of contractual disciplinary procedure
Both claims may be included in the same ET1 form where relevant, provided the factual basis supports them.
Mandatory requirement: Acas Early Conciliation
Before submitting an ET1 form, most claimants must complete Acas Early Conciliation.
This involves:
- Notifying Acas of the dispute
- Engaging in a short conciliation period
- Receiving an Early Conciliation certificate if no settlement is reached
The certificate number must be included on the ET1 form. Without it, the tribunal will usually reject the claim.
Time limits for submitting an ET1
Strict limitation periods apply:
- Most dismissal claims: 3 months minus 1 day from the effective date of termination
- Time is paused during Acas Early Conciliation
- Internal grievances or employer appeals do not extend time limits
Missing the deadline can result in the claim being refused unless exceptional circumstances apply.
Step-by-step: How to submit an ET1 form
Step 1: Identify the correct legal claim
Before completing the form, the claimant must determine:
- Whether the dispute is unfair dismissal, wrongful dismissal, or both
- The effective date of termination
- Whether notice pay or contractual benefits are unpaid
- The legal basis for alleging breach or unfairness
This determines how Section 8.2 (grounds of claim) is structured.
Step 2: Gather required information
The ET1 form requires detailed information, including:
- Full legal name and address of the employer (respondent)
- Job title and employment dates
- Salary and benefits
- Date of dismissal or resignation
- ACAS Early Conciliation certificate number
- Summary of facts supporting the claim
- Financial losses claimed
Supporting documents are not usually uploaded at this stage but must be retained for later disclosure.
Step 3: Complete the ET1 form online
The majority of claims are submitted using the online Employment Tribunal service.
Key sections include:
Section 1 – Parties
Details of claimant and respondent, including correct legal entity name.
Section 2 – Employment details
Job role, start date, end date, and pay.
Section 3 – Type of claim
Selection of legal claims such as unfair dismissal or breach of contract.
Section 8.2 – Particulars of claim
This is the most important section. It should include:
- A chronological summary of events leading to dismissal
- The reason given by the employer for dismissal
- Why the dismissal is alleged to be unfair or in breach of contract
- Reference to notice entitlement or contractual terms
- Losses suffered (for example unpaid notice pay)
The tribunal relies heavily on this section to define the scope of the case.
Step 4: Submit the claim
Once completed:
- The ET1 form is submitted electronically
- The tribunal reviews it for completeness
- If accepted, it is served on the employer
- The claim is formally issued
If required information is missing, the tribunal may request corrections or reject the claim.
Step 5: Tribunal serves the claim on the employer
After acceptance:
- The employer receives a copy of the ET1
- The employer has 28 days to submit a response (ET3 form)
- The ET3 sets out the employer's defence
This begins the formal litigation stage.
Step 6: Case management process
Following submission:
- The tribunal may issue case management orders
- Both parties may be required to exchange documents
- A timetable is set for witness statements and evidence bundles
- Preliminary hearings may be listed in complex cases
Common errors when submitting an ET1
Incorrect employer name
Using a trading name instead of the correct legal entity can delay proceedings.
Missing Acas certificate number
This is a mandatory requirement in most cases.
Weak or unclear particulars of claim
Section 8.2 must clearly set out the legal and factual basis of the dismissal dispute.
Missing limitation deadline
Late claims are frequently rejected unless justified.
Mixing legal claims without structure
Unfair dismissal and wrongful dismissal should be clearly separated where both are included.
Compensation in dismissal disputes
The ET1 form should include a summary of losses, which may include:
- Unpaid wages
- Notice pay (wrongful dismissal claims)
- Basic and compensatory awards (unfair dismissal claims)
- Pension or contractual benefits lost due to dismissal
The tribunal determines the final award based on evidence and legal entitlement.
Practical guidance on drafting Section 8.2
A structured approach is typically used:
- Background of employment
- Timeline of key events
- Employer's stated reason for dismissal
- Alleged breaches (contractual or statutory)
- Effect of dismissal on income and employment status
Clarity is prioritised over legal argument. Detailed legal submissions are usually provided later in the process.
After submission: what happens next
Once the ET1 is accepted:
- The case is registered with the tribunal
- The employer files ET3 within 28 days
- A preliminary hearing may be arranged
- Disclosure and witness evidence stages follow
- The case proceeds to final hearing if not settled
Many dismissal disputes settle before reaching a final hearing through negotiation or Acas involvement.
Key Takeaways
Submitting an ET1 form for a dismissal dispute is the formal process for starting an Employment Tribunal claim in England and Wales. The form requires accurate employment details, a valid Acas certificate, and a clear statement of the claim, particularly in Section 8.2. Strict time limits apply, and errors in employer identification or claim structure can affect how the case proceeds. Once submitted and accepted, the tribunal serves the claim on the employer, who must respond within 28 days, leading to the case management and hearing process.