Evidence Needed to Support a Wrongful Termination Claim

When an employee in England and Wales believes they have been wrongfully terminated - that is, dismissed in breach of their employment contract - they must support any claim with appropriate evidence. Without convincing evidence, an employment tribunal is unlikely to find in favour of a claimant. Evidence demonstrates what happened, when it happened, and how it breaches contractual or statutory rights. This article explains the types of evidence that support a wrongful termination claim, how to prepare and present it, the role of witness statements, and practical tips for organising documentation, all presented in clear, accessible language for employees, solicitors, students and the general public.

Why Evidence Matters

In wrongful termination claims, the burden of proof rests with the employee making the claim. The tribunal decides cases on the balance of probabilities - meaning it must be more likely than not that the employer breached the contract when terminating the employment. Without documentary or witness evidence to support the allegations, a tribunal may find in the employer's favour.

Core Evidence for a Wrongful Termination Claim

1. Employment Contract and Related Documents

The employment contract is central to any wrongful termination claim. It sets out terms such as:

• Notice periods
• Disciplinary or grievance procedures
• Pay and benefits
• Terms for termination

A written contract helps show whether the employer failed to comply with contractual notice or procedures. If there are written variations or amendments to the contract (for example, changes agreed later in writing or by email), include those too.

2. Correspondence With the Employer

Emails, letters, text messages and other communications can be vital. These documents may show:

• When the employer notified the employee of termination
• What reasons were given
• Whether any contractual procedures (such as disciplinary meetings) were followed
• Any employer admissions relevant to the timing or reason for dismissal

Official correspondence often provides the clearest evidence of the employer's stated position on dismissal.

3. Dismissal and Grievance Documents

Documents directly related to the termination event are essential:

• Dismissal letter or email confirming the end of employment
• Grievance letters or responses if the employee raised concerns before termination
• Notes or minutes of meetings about the termination

These documents help establish what happened and whether the employer acted in line with contractual obligations.

4. Pay Records and Evidence of Loss

To calculate compensation (such as for loss of notice pay), the tribunal will want to see evidence of income:

• Payslips showing salary before dismissal
• Records of benefits (company car, pension contributions, bonuses)
• Bank statements showing payments received

If the claim involves loss of earnings, detailed financial evidence is necessary.

5. Internal Policies and Procedures

Employer policies can help show what procedures the employer should have followed. Useful documents may include:

• Disciplinary or capability procedures
• Redundancy consultation policies
• Handbooks specifying contractual processes

These help identify whether the employer followed contractual processes linked to termination.

Evidence Beyond Documents

6. Witness Statements

Tribunals allow witness evidence, usually provided in written witness statements. These statements set out what individuals saw or experienced. They can include:

• The claimant's own account of events
• Statements from colleagues who witnessed warning meetings, investigations, or the dismissal itself

A tribunal will generally give little weight to a statement from a witness who does not attend the hearing in person, so attendance at the hearing is often necessary.

A witness statement should be detailed, accurate, and truthful, and it should refer to documents in the evidence bundle by page references.

Preparing Evidence for Tribunal

7. The Document “Bundle”

For a tribunal hearing, evidence is organised into a bundle - a collection of all documents that either party plans to rely on. Preparing a bundle typically involves:

• Numbering all documents
• Including an index
• Ensuring each document is easily referenced in witness statements and submissions

Tribunal rules require parties to serve documents on each other with reasonable notice. Some tribunals set specific deadlines for disclosure and bundle preparation, and in more complex cases they may order disclosure (compulsory exchange of relevant documents).

8. Requests for Disclosure

If a claimant does not have a document in their possession but believes it exists, they can request disclosure from the employer - asking that the employer provide the document. If the employer refuses, the claimant may apply to the tribunal for an order requiring disclosure. Both parties have a legal duty to disclose relevant documents that are in their control.

Presenting Evidence Effectively

To ensure evidence is compelling:

• Link documents to your claim narrative in your witness statement. Refer clearly to each document and explain its relevance.
• Keep proper records of dates, meetings, and communications. Diaries or contemporaneous notes can be persuasive.
• Organise evidence thematically, such as notice issues, procedural breaches, or losses, to make it easier for the tribunal to follow.

Early preparation can improve the clarity and strength of your case.

Time Limits and Evidence Planning

Tribunal claims for wrongful termination generally must be lodged within three months less one day from the effective date of termination. Effective planning and evidence gathering helps ensure the claim is properly supported within strict time limits, including time spent in early conciliation with ACAS before issuing a claim.

Common Questions About Evidence

Can I include informal communications?
Yes. Emails, text messages or instant messages relating to termination can be highly relevant if they show employer intent, dates of notices or deviations from procedure.

Is my diary or personal notes useful?
Yes. Contemporaneous notes can help establish a timeline and fill gaps when formal documents are lacking.

What if the employer will not give documents?
You can ask the tribunal to order disclosure if the employer fails to provide documents that are relevant and in their control.

Key Takeaways

Supporting a wrongful termination claim in employment law requires robust evidence. Key documents include the employment contract, dismissal and grievance correspondence, pay records, and internal policies. Witness statements from colleagues and a carefully prepared evidence bundle assist tribunals in understanding what happened and on what basis the claim is made. Requests for disclosure can help obtain documents held by the employer. Early and organised evidence gathering is essential to navigate time limits and to present a coherent case to an employment tribunal.