Employment Tribunal Preparation Toolkit

Understanding the Employment Tribunal (ET)

The Employment Tribunal is a specialist court that adjudicates disputes between employers and employees regarding employment rights. It's less formal than a civil court but still follows strict legal rules and procedures. Claims often involve unfair dismissal, discrimination, whistleblowing detriment, unlawful deduction from wages, or breach of contract. The ET's role is to provide a forum where your legal rights at work can be impartially assessed.

The key stages of a tribunal claim: a timeline

The process can feel confusing. Here is the typical journey of a claim from start to finish.

Time limits and continuing acts

This is the most important rule. Failing to meet the deadline is the most common reason claims are rejected.

3.1 The basic time limit

Most claims must be submitted within 3 months minus 1 day of the incident.

• Unfair dismissal: the deadline runs from the Effective Date of Termination (EDT) — the last day of your employment.
• Discrimination: the deadline runs from the date of the last act of discrimination you are complaining about.
• Unlawful deduction of wages: the deadline runs from the date of the last deduction in a series.

Example: if you were dismissed on June 10th, the deadline for your claim is September 9th.

3.2 The "continuing act" doctrine

Where discrimination or harassment is not a single event but a series of related incidents over time, it may be considered a "continuing act." This is a crucial concept.

How it works: if successful, the 3-month time limit runs from the date of the very last event in the sequence, bringing all the earlier incidents back "in time."

3.3 How ACAS Early Conciliation "stops the clock"

Before you can submit a claim (the ET1 form), you must contact the Advisory, Conciliation and Arbitration Service (ACAS) for Early Conciliation (EC).

• "Stopping the clock": the day you submit your EC form, the time limit for your claim is paused. The clock restarts when ACAS issues your EC certificate. The time you have left is then recalculated.
• The certificate: the certificate contains a unique reference number that is mandatory for your ET1 form. Without it, your claim will be rejected. Always keep this certificate safe.

Read our detailed strategic guide: Acas Early Conciliation — how it works and the tactics to watch for.

Navigating ACAS Early Conciliation (EC)

ACAS EC is a compulsory first step for most tribunal claims. It provides a formal window for you and your employer to settle the dispute with the help of a neutral ACAS conciliator, avoiding the need for a tribunal hearing.

The process

• Submission: you submit a form online or by phone to ACAS.
• Contact: an ACAS officer will contact you to confirm details and then reach out to your employer.
• Conciliation: the conciliator will pass messages and offers between both sides for a period of up to 6 weeks. They cannot take sides or give legal advice.
• Outcome: if a settlement is reached, it's recorded in a legally binding document (a COT3). If not, ACAS issues the EC certificate, and you are free to proceed to the tribunal.

Pros and cons

The core tribunal documents

5.1 The ET1 claim form

This is the form you use to formally submit your claim. It is your first and most important opportunity to set out your case. It must include:

• A concise summary of the issues and a clear chronology of events.
• The legal basis for your claim (e.g., "direct race discrimination under the Equality Act 2010, s.13").
• The remedies you are seeking (e.g., compensation for financial loss and injury to feelings, reinstatement).
• Your ACAS Early Conciliation Certificate number.

Download our ET1 claim form appendix template for a ready-to-use structure.

5.2 The ET3 response form

This is the employer's formal reply to your ET1. They must submit it within 28 days of receiving your claim.

What to look for: the ET3 will admit, deny, or provide an alternative explanation for the events you described. It will reveal the core of their legal defence.

Case management and hearings

6.1 Preliminary hearings

A judge may schedule a Preliminary Hearing (PH) to manage the case, clarify legal issues, and set a timetable ("Orders" or "Directions") for the steps leading to the final hearing.

6.2 Orders and directions

Following the PH, the Tribunal will issue legally binding "Orders" or "Directions." These are tasks each side must complete by specific deadlines. Common orders include:

• Disclosing all relevant documents.
• Preparing a shared "bundle" of documents.
• Submitting witness statements.
• Agreeing on a list of issues for the final hearing.

Evidence and disclosure

7.1 Disclosure

You and your employer have a legal duty to disclose all documents relevant to the issues in the case, whether they help your case or not. This includes emails, meeting notes, grievance outcomes, contracts, and even private messages on platforms like WhatsApp if they are relevant to the dispute.

7.2 The bundle

This is the shared set of documents that both you and the employer will rely on at the final hearing. It should have a chronological index and page numbers for easy reference.

7.3 Witness statements

This is your main evidence — a detailed written account of what happened, in your own words. Key rules:

• It must be written in the first person ("I saw," "He said to me").
• It should align with the facts stated in your ET1 claim form.
• It must reference the bundle to support your claims (e.g., "A copy of this email can be found at page 54 of the bundle").

7.4 Preparing your schedule of loss

This is a critical document: your detailed calculation of the compensation you are claiming. It must be sent to the employer and the Tribunal before the final hearing. What to include:

• Loss of earnings: calculate your net weekly pay and multiply it by the number of weeks you have been out of work. You must also show you have tried to "mitigate your loss" (i.e., look for another job).
• Future loss of earnings: if you are still unemployed or in a lower-paid job, estimate your future losses.
• Loss of pension: calculate the pension contributions the employer would have made.
• Loss of statutory rights: a fixed amount (around £500) for losing the right not to be unfairly dismissed (as you need 2 years of service).
• Injury to feelings (for discrimination claims): compensation for the hurt and distress, based on the "Vento Bands" (lower, middle, and upper bands for less severe to most severe cases).
• Interest: you can claim interest on your past losses.

Download our schedule of loss template to structure this calculation.

Strategy, settlement, and compensation

8.1 Negotiating an exit

Settlement can be initiated by either side at any point in the dispute, often before a claim is even lodged. The aim is to agree on terms for a clean break. Consider involving a solicitor or your union representative to advise on the terms of any agreement.

8.2 Understanding settlement terminology

Negotiations use specific legal terms. Understanding them is vital to protecting your position.

• "Without Prejudice" (WP): a legal protection that creates a safe space for negotiation. When an email, letter, or conversation is marked "Without Prejudice," it cannot be shown to a tribunal judge as evidence of admissions or liability. For this protection to apply, there must be an existing dispute between the parties.
• "Protected Conversation" (s.111A ERA 1996): a specific type of "off-the-record" conversation that an employer can initiate to discuss ending employment on agreed terms, even before a formal dispute exists. This protection can be lost if there is any "improper behaviour" by the employer, and it does not apply to discrimination, harassment, or whistleblowing claims.
• COT3 agreement: the legally binding settlement agreement arranged via ACAS. Once signed, you cannot pursue the same claims in the tribunal.
• Settlement agreement: if a settlement is reached privately without ACAS, the terms are recorded in a "Settlement Agreement." For this to be legally valid, you must receive independent legal advice — and your employer is required to pay for it.

8.3 Compensation ("remedy")

If you win your case at a final hearing, the tribunal can award compensation. This is often what settlement negotiations are based on.

• Basic award: a statutory award for unfair dismissal, calculated based on your age, weekly pay (capped), and length of service.
• Compensatory award: an award to compensate for the financial losses you have suffered because of the employer's actions (e.g., loss of past and future earnings, loss of pension).
• Injury to feelings (the "Vento Bands"): for discrimination and harassment claims, an award for the hurt, distress, and anxiety caused. The amount is set within three bands (lower, middle, and upper) depending on the seriousness of the case.

Costs and risks

9.1 The general rule

In the UK Employment Tribunal, each party usually pays its own legal costs, regardless of who wins. This is different from civil courts.

9.2 Exceptions to the rule

The Tribunal can order one party to pay the other's costs if they have acted unreasonably. This includes bringing a claim with no reasonable prospect of success, being dishonest, or repeatedly failing to comply with tribunal orders.

What to expect at the final hearing

This can be the most intimidating part. Demystifying it helps.

Who is in the room?

• The Judge (addressed as "Judge" or "Sir/Ma'am").
• For discrimination cases, two Lay Members (non-lawyers with experience in HR or unions) will sit with the judge to form the panel.
• The Claimant (you) and your representative (if any).
• The Respondent (the employer) and their representative.
• Witnesses for both sides.

The process

• The hearing starts with the judge clarifying the issues.
• You (or your first witness) will be asked to "swear an oath" or "affirm" that your witness statement is true.
• Cross-examination: the employer's representative will ask you questions about your statement and the evidence. Your job is to answer truthfully and calmly. Stick to the facts. Do not argue.
• Re-examination: your representative (or you, if self-representing) can ask you questions to clarify points that came up in cross-examination.
• This process is repeated for all witnesses on both sides.
• Submissions: both sides give a closing speech, summarising their case and why they should win.

Courtroom etiquette: dress smartly. Be polite to everyone. Stand when the judge enters or leaves. Bring your own copy of the bundle and witness statements.

Key legal tests for discrimination claims

11.1 The shifting burden of proof

This is a crucial legal test.

• Stage 1 — you: you must first prove facts from which the tribunal could conclude that discrimination has occurred. This is called establishing a "prima facie" case.
• Stage 2 — the employer: if you succeed, the burden of proof shifts to the employer. They must then prove that there was a non-discriminatory explanation for their actions. If they cannot, the tribunal will find in your favour.

Read the detailed guide: how discrimination is proved, step by step.

11.2 Direct discrimination (Equality Act 2010, s.13)

You must show that you were treated less favourably because of a protected characteristic (e.g., race, sex, disability).

The comparator: you need to compare your treatment to that of a real or hypothetical "comparator" — someone in materially similar circumstances but without your protected characteristic.

Example: a white colleague who committed a similar minor misconduct was given a warning, while you, as a Black employee, were dismissed for the same misconduct.

11.3 Indirect discrimination

This is when an employer applies a universal rule or policy — a "provision, criterion or practice" (PCP) — that, on the surface, is neutral but in practice puts people with your protected characteristic at a particular disadvantage. You must show:

• The employer applied a PCP.
• The PCP puts people who share your characteristic at a group disadvantage.
• The PCP put you at that disadvantage.
• The employer cannot show that the PCP was a proportionate means of achieving a legitimate aim.

Example: a requirement for all staff to work full-time might disproportionately disadvantage women, who are more likely to have primary childcare responsibilities.

11.4 Harassment (Equality Act 2010, s.26)

Harassment is unwanted conduct related to a protected characteristic that has the purpose or effect of violating your dignity, or creating an intimidating, hostile, degrading, humiliating, or offensive environment for you.

Key point: it can be a single serious incident or a pattern of behaviour. The employer's intent is not the main factor; the effect of the conduct on you is what is central.

11.5 Victimisation (Equality Act 2010, s.27)

This is when you are treated badly (a "detriment") because you have done a "protected act." Protected acts include:

• Making a complaint or raising a grievance about discrimination.
• Giving evidence or supporting someone else's discrimination claim.
• Making a whistleblowing disclosure.

Example: you raised a grievance about sexist comments made in your team. A month later, you were denied a promotion that you were qualified for, with your manager labelling you as "not a team player."

The reality: emotional and practical support

The ET process is long and demanding. It is not just a legal battle; it is an emotional one.

• Timescale: be prepared for the process to take 6 to 18 months, or even longer.
• Support system: it is vital to have support. This could be your GP, a therapist, your trade union representative, or trusted friends and family. Our Mental Health & Wellbeing Toolkit can help.
• The future: a tribunal claim often marks the end of your employment relationship with that employer. However, it is not the end of your career. Winning a claim or achieving a settlement means you successfully held your ground and asserted your rights.

Toolkit resources

Templates: ET1 claim form appendix, schedule of loss, witness statement and disclosure structures in the downloads sidebar.

Checklists: tribunal preparation checklist, evidence log, and settlement negotiation checklist.

Further reading and key legislation: Equality Act 2010 (especially sections 13, 26, and 27), Employment Rights Act 1996, Public Interest Disclosure Act 1998 (PIDA). Key case law: Hendricks v Metropolitan Police, Chondol v Liverpool City Council, Thompson v London Central Bus Company.