Your UK Grievance Roadmap: Don’t Let the Clock Run Out

If you’re raising a grievance at work, timing is everything. Most people lose their claims not because they’re wrong — but because they miss the deadline.

Here’s the playbook that protects your rights.

Your Grievance Steps

Listen up – this is your playbook.   1️⃣ Draft your grievance letter with facts, evidence, impact, and what needs fixing. 2️⃣ Bring a colleague or union rep to the meeting — never walk in alone. 3️⃣ Appeal the outcome if it’s wrong, and insist on someone impartial.

The Golden Rule

Your legal clock starts from the last unlawful act. You have 3 months minus 1 day to start ACAS. The grievance process does not pause this clock.

Employers delay on purpose. Don’t fall for it.

Run Both Processes in Parallel

• Start ACAS Early Conciliation to pause the tribunal clock

• File your ET1 before the final deadline — even if your appeal is ongoing

If your employer ignores the ACAS Code, tribunals can add up to 25% to your compensation.

You’re not the little guy. You’re a warrior with a map.

Download Your Roadmap

This guide is for information only. Always seek legal advice if unsure.