What Should an Employer Do When Facing an Employment Tribunal Claim?

Facing an employment tribunal claim can be daunting for a business owner, employer or HR manager. Even where an organisation believes it has acted correctly, a tribunal claim can involve significant management time, legal costs, reputational concerns and disruption to the business.

The key is to avoid reacting emotionally and instead deal with the matter methodically. Employers should establish exactly what has been alleged, protect relevant evidence, identify important deadlines and assess whether the dispute can be resolved before it reaches a full hearing.

The following steps can help UK employers approach an employment tribunal claim in a structured and practical way.

1. Take the Claim Seriously and Check the Details

The first step is to carefully read the tribunal claim and any accompanying correspondence.

Identify:

• The claimant and the employer named as respondent
• The case number
• The allegations being made
• The legal claims being pursued
• The events and dates referred to
• The remedy or compensation being sought
• Any Acas Early Conciliation information
• The deadline for submitting the employer's response

Employment tribunal claims can cover a wide range of issues, including unfair dismissal, discrimination, unlawful deductions from wages, holiday pay, breach of contract, whistleblowing and redundancy-related disputes.

Do not assume that a claim is weak simply because the employer disagrees with the employee's version of events. Each allegation should be considered separately and assessed against the available evidence.

2. Check the Tribunal Deadline Immediately

One of the most important practical steps is identifying the deadline for responding.

For most tribunal claims in England, Wales and Scotland, an employer generally has 28 days from the date the tribunal sent the claim form to submit its response. The response is normally made using an ET3 form or the online tribunal response service.

Missing the deadline can have serious consequences. If a response is not submitted in time, the tribunal may proceed without the employer's defence and may make a judgment without a full hearing.

If additional time is genuinely required, the employer can ask the tribunal for an extension, but this should be done promptly and should not be assumed to have been granted until the tribunal confirms it.

Employers should also be aware of changes to tribunal time limits. Acas confirms that from 1 October 2026, the time limit for most new claims will increase to six months minus one day, but this applies only where the relevant time limit starts on or after that date.

Because limitation rules can be complicated, employers should check the dates carefully rather than relying on assumptions.

3. Understand the Role of Acas Early Conciliation

Acas Early Conciliation is designed to give employers and employees an opportunity to resolve a dispute without proceeding to a tribunal hearing.

Where an employee has notified Acas of an intention to bring a claim, Acas may contact the employer to offer conciliation. Participation is voluntary, and Acas acts independently rather than representing either party.

Settlement through Acas can result in a legally binding COT3 agreement. If an agreement is reached, the dispute can be resolved without continuing to a tribunal hearing.

Employers should not automatically reject conciliation simply because they believe they have a strong case. Settlement may sometimes be commercially sensible when the costs, management time and uncertainty associated with litigation are taken into account.

An employer can also request Acas Early Conciliation where it believes a dispute could lead to a tribunal claim. However, employers should note that the tribunal limitation period is not paused simply because the employer is the party that contacts Acas.

4. Gather and Preserve Relevant Documents

Once a tribunal claim is anticipated or received, employers should preserve potentially relevant evidence.

This could include:

• The employment contract
• Employee handbook and policies
• Disciplinary and grievance records
• Performance reviews
• Absence records
• Payroll and holiday records
• Emails and correspondence
• Workplace messaging records
• Meeting notes
• Investigation reports
• Letters relating to dismissal or other employment decisions
• Records of complaints
• Training records
• Relevant HR documents

Employers should also consider electronic evidence. Emails, Teams messages and other workplace communications may become relevant to the dispute.

Do not delete, alter or rewrite documents simply because they may be unhelpful. Employment tribunal proceedings can require relevant documents to be disclosed even where they do not support the employer's case.

A sensible approach is to establish a dedicated case file and make sure relevant records are retained.

5. Build a Clear Chronology

A detailed chronology can be extremely useful when preparing a tribunal response.

Record the key events in date order, including:

• When the employee joined the organisation
• Important performance or conduct issues
• Complaints or grievances
• Investigations
• Meetings
• Warnings
• Disciplinary proceedings
• Appeals
• Dismissal or resignation
• Subsequent correspondence

For each event, identify the people involved and the supporting documents.

A chronology helps HR managers, business owners and legal advisers establish what actually happened and identify any gaps or inconsistencies in the employer's evidence.

6. Review Policies and Procedures

Employers should compare what actually happened with the organisation's policies and procedures.

Depending on the claim, relevant policies might include disciplinary, grievance, sickness absence, equality and diversity, whistleblowing, redundancy, performance management or flexible-working procedures.

The question should not simply be whether a policy existed. Employers should establish whether it was followed consistently and whether similar employees were treated in a comparable way.

If there were procedural shortcomings, these should be identified early rather than discovered for the first time during the tribunal hearing.

7. Prepare the ET3 Response Carefully

The employer's ET3 response is a critical part of the case.

The response should address the allegations clearly and explain the employer's position. The tribunal response service requires information such as the claimant's employment details, pay and benefits, Acas information and a description of the employer's response, including relevant dates and people involved.

Employers should avoid vague or emotional statements. Instead, the response should focus on facts, evidence and the specific issues that the tribunal needs to determine.

Where the claim involves discrimination, whistleblowing, dismissal or substantial financial exposure, professional advice should be considered before submitting the response.

8. Identify and Prepare Witnesses

Witnesses may be central to an employer's defence.

Potential witnesses could include:

• The employee's line manager
• HR personnel
• The investigating officer
• The person who made the relevant decision
• Appeal managers
• Colleagues who directly witnessed important events

Witnesses should provide evidence based on their own knowledge. They should be familiar with their statements and the relevant documents but should not be coached to exaggerate or alter their evidence.

The tribunal may require witness statements and witnesses may need to attend the hearing to give evidence.

9. Assess the Strengths, Weaknesses and Potential Costs

A realistic assessment of the case is essential.

Employers should consider:

Strengths

• Is there clear documentary evidence?
• Were procedures followed?
• Are the employer's reasons well documented?
• Are reliable witnesses available?

Potential weaknesses

• Are important records missing?
• Were procedures followed inconsistently?
• Do emails or messages contradict the employer's position?
• Were similar employees treated differently?
• Could discrimination or whistleblowing issues be involved?

The potential financial exposure should also be assessed. Depending on the claim, compensation can include lost earnings, unpaid sums and, in discrimination cases, compensation for injury to feelings and potentially other losses.

10. Consider Professional Guidance

Employment tribunal procedure can become complicated, particularly when multiple claims or significant financial risks are involved. Employers should consider obtaining advice early rather than waiting until the hearing is approaching.

Professional support can help an employer understand the allegations, assess the evidence, prepare an appropriate response and evaluate whether defending or settling the claim is the most sensible course of action. Businesses seeking specialist support can explore UK employment tribunal legal advice when dealing with an employment tribunal matter.

Professional guidance can be particularly valuable in cases involving discrimination, whistleblowing, senior employees, complex dismissal issues, substantial compensation claims or difficult limitation questions.

11. Consider Settlement Carefully

Defending a tribunal claim is not always the only option.

Employers should consider whether settlement would be commercially sensible after taking into account:

• The strength of the claim
• Potential compensation
• Legal and professional costs
• Management time
• Witness availability
• Business disruption
• Reputational considerations
• The uncertainty of litigation

Settlement does not necessarily mean admitting liability. It can be a practical business decision to bring an uncertain dispute to an end.

Acas conciliation can remain available during the tribunal process, and a successful settlement can avoid the need for a final hearing.

12. Comply With Tribunal Orders

Once the ET3 has been accepted, the employer should carefully monitor all tribunal correspondence and deadlines.

The tribunal may issue directions covering disclosure of documents, witness statements, preliminary hearings and preparation for the final hearing. Employers must comply with these orders within the specified deadlines.

A case should therefore have one clearly responsible person—whether an HR manager, business owner, solicitor or other representative—monitoring the proceedings and ensuring deadlines are not missed.

Final Thoughts

An employment tribunal claim should never be ignored, but it does not automatically mean that an employer has acted unlawfully or that the case must proceed to a final hearing.

The best approach is to remain calm, establish the facts, preserve evidence, understand the legal issues, meet every deadline and objectively assess the risks.

For employers, early preparation is often one of the most valuable steps. A well-organised chronology, complete employment records, credible witnesses and carefully prepared response can put the business in a much stronger position when deciding whether to defend the claim, negotiate a settlement or proceed to a hearing.

Note: This article provides general information for UK employers and should not be treated as legal advice for a specific dispute. Employment tribunal rules can differ depending on the type of claim and jurisdiction. Northern Ireland operates a separate employment tribunal system, so employers there should obtain advice based on the applicable Northern Ireland rules.