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Common issues

Grievance Before Resigning

Why you should usually raise a grievance before leaving.

Last updated 21 February 2026

Overview

While not a strict legal requirement, failing to raise a grievance before resigning for constructive dismissal can result in a tribunal reducing your compensation by up to 25%.

What you can do

  • Submit a formal written grievance detailing the breach of contract.
  • If the employer ignores it or fails to resolve it, this can constitute a 'last straw' justifying resignation.

Next steps

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

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Sources