How to Appeal a Dismissal (UK) — Letter Template & Guide
An appeal dismissal letter UK employees send should focus on procedural flaws, missing evidence, or disproportionate sanctions rather than emotion alone.
The short answer
An appeal letter formally challenges your dismissal. Under ACAS guidelines, employers must offer an appeal process. You have grounds to appeal if the procedure was flawed, the punishment was disproportionate, or new evidence has emerged.
Contents
Your right to appeal a dismissal
In the UK, every employee has the right to appeal a disciplinary decision, including dismissal. This right exists regardless of your length of service. However, a claim for unfair dismissal at an Employment Tribunal generally requires 2 years' continuous service.
Key rights to know
- Right to appeal is immediate regardless of service length
- Unfair dismissal claim at tribunal requires 2 years' service (with exceptions)
- Automatically unfair dismissal (whistleblowing, pregnancy, union activity) has no minimum service threshold
- ACAS Early Conciliation is required before a tribunal claim
Grounds for an appeal
A strong appeal identifies specific grounds — not just disagreement with the outcome. The most persuasive grounds are procedural failures and disproportionate sanction.
Common grounds for appeal
- Procedural failures — you weren't given proper notice, allowed a companion, or given full evidence
- Disproportionate penalty — dismissal was too severe given the circumstances
- New evidence — information that wasn't available at the disciplinary hearing
- Bias or conflict of interest — the decision-maker had a vested interest
- Inconsistent treatment — colleagues in similar situations were not dismissed
What to include in your appeal letter
Your appeal letter must be timely (usually within the timeframe specified in your disciplinary policy — often 5 working days), clearly state your grounds, and reference specific facts.
What to include
- Statement that you are appealing the decision dated [date]
- Each ground of appeal set out separately and clearly
- Specific factual evidence supporting each ground
- Any new evidence you are introducing
- The outcome you are seeking (reinstatement, lesser sanction, clean record)
- Request for a meeting at which you can be accompanied
UK dismissal appeal letter example
Edit this template with your facts, dates, and requested outcome before sending.
Subject: Appeal Against Dismissal Decision Dated [date] Dear [Appeal Manager/HR], I am writing to formally appeal the dismissal decision communicated to me on [date]. Ground 1: [Procedural error], specifically [details]. Ground 2: [Disproportionate sanction], because [details]. Ground 3: [New evidence], namely [evidence summary]. I respectfully request that the dismissal decision is reviewed and that I am invited to an appeal hearing, where I will exercise my right to be accompanied. The outcome I seek is [reinstatement/reduced sanction/record amendment]. Please confirm receipt and next steps for the appeal process. Yours sincerely, [Your Name]
Common mistakes to avoid
- Missing the appeal deadline — check your disciplinary policy immediately
- Only stating you disagree rather than specifying grounds
- Introducing grievances about unrelated matters
- Not requesting to be accompanied at the appeal meeting
- Failing to mention procedural failures even when they clearly occurred
Next steps
- 1Check your disciplinary/dismissal letter for the appeal deadline
- 2Request a copy of your disciplinary investigation file
- 3Identify your specific grounds for appeal
- 4Contact your trade union rep if applicable
- 5Draft and submit your appeal letter before the deadline
- 6If appeal fails, contact ACAS about Early Conciliation within 3 months of dismissal
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