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Workplace process

Raising a grievance

Understand the grievance procedure meaning and how to raise concerns at work following grievance procedure acas standards.

Last updated 5 April 2026

On what grounds can you raise a grievance?

A workplace grievance is a formal complaint about a problem or concern at work. You can raise a grievance about almost anything, including your workload, health and safety, or your manager's behaviour.

Common grounds for a grievance include being unfairly treated at work, witnessing illegal activity, or facing discrimination/harassment.

Before deciding, many ask: Can you lose your job over a grievance? Legal protections exist to prevent victimisation, but the process must be handled carefully.

When to raise one

  • You want to challenge unfair treatment or a decision.
  • You need the employer to correct behaviour or process failures.
  • You are preparing for a possible claim and need a clear record.
  • You tried to resolve the issue informally and it did not work.

Wait... Can you lose your job over a grievance?

  • Under section 27 of the Equality Act 2010, you are protected against 'victimisation'. This means your employer cannot treat you badly or dismiss you because you raised a grievance (provided it was made in good faith).
  • If you are dismissed shortly after raising a grievance, it may be classed as an automatically unfair dismissal if you can show the grievance was the primary reason for the termination.
  • Even if you have less than 2 years service, you may still be protected if your grievance related to discrimination or a statutory right.
  • What is victimisation protection in employment law? It is a legal shield designed to ensure employees aren't afraid to speak up about unfair treatment.

What are the stages of a grievance procedure? (The five steps of grievance)

  1. 01

    Stage 1: Informal Resolution

    Try to resolve the concern by speaking with your manager or HR before filing a formal letter.

  2. 02

    Stage 2: Formal Grievance Letter

    Submit a written complaint outlining the specific issues and how you want them resolved.

  3. 03

    Stage 3: Grievance Meeting

    A formal hearing where you explain your case. You have the right to be accompanied by a colleague or trade union rep.

  4. 04

    Stage 4: The Decision

    The employer must investigate and provide a written response within a reasonable timeframe (usually 24-48 hours after the meeting).

  5. 05

    Stage 5: The Appeal

    If you are unhappy with the outcome, you have the right to appeal to a more senior manager.

What happens next

  • The employer should acknowledge the grievance and appoint someone to review it.
  • You may be invited to a meeting to clarify facts or respond to questions.
  • A written decision should follow, with the option to appeal.

Evidence to attach or reference

  • Key emails or messages
  • Schedules or rota changes
  • Policies that were not followed
  • Names of witnesses
  • Medical notes or fit notes if relevant

Common questions

Do I have to finish the grievance before ACAS?

No, but completing the process can help show you tried to resolve it internally.

What if the employer ignores my grievance?

Follow up in writing and keep the record; lack of response can still be relevant.

Can I raise a grievance while off sick?

Yes, you can submit it in writing and request reasonable adjustments.

Next steps

Keep your facts organised and protect your time limits with the tools below.

Start case check

Sources