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Ask Samantha / Discipline & conduct

Discipline & conduct

How many warnings do I need before I can dismiss someone?

Answered by Samantha Newton FCIPD, Chartered Fellow CIPD · Last reviewed August 2026

There's no fixed number, and the old 'you always need three warnings' line is a myth. What matters is that the process is fair for the situation. For ordinary conduct or performance, that usually means a warning, a genuine chance to put it right, and clear steps before you get to dismissal.

Gross misconduct is different. For something serious, like theft, violence or a real breach of trust, you can dismiss with no previous warnings, but only after a proper investigation and hearing. The two things that trip owners up: jumping straight to dismissal for something minor, or dragging warnings out for months with no real support. Both look unfair at a tribunal.

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