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First Written Warning Letter Template
How to issue a formal first written warning for conduct or performance — what to include, your legal rights, and a free letter generator.
← All Letter Templates · Employer · Last updated 18 August 2026
This is free rights guidance, not legal advice. For advice specific to your situation, see our About page or contact Citizens Advice.
If you need to issue a formal first written warning for conduct or performance, a written letter is the recommended first step — it creates a clear record and shows you're pursuing the matter formally. Below is what a strong first written warning letter should include, plus a free tool to generate yours.
What this letter needs to cover
- State clearly it is a formal first written warning
- Set out the specific conduct or performance issue
- Reference any previous informal discussions
- Set out what improvement is expected and by when
- State the consequence of no improvement
- Confirm right of appeal within 5 working days
- Confirm right to be accompanied at any appeal hearing
See our full letter template library for related templates, or use our free checkers for guidance specific to your situation.
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