First Written Warning Letter Template & Generator

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

What separates a fair first warning from an unfair one

A first written warning should follow a proper, if proportionate, process — the employee needs to know clearly what they're accused of, have a genuine chance to respond, and understand exactly what improvement is expected. Skipping straight to a written warning without any discussion beforehand, for a relatively minor first issue, can undermine an otherwise reasonable decision if challenged.

What to include before you send it

• The specific conduct or performance concern, described factually and without exaggeration
• Confirmation that the employee had an opportunity to respond before the decision was made
• Clear expectations for improvement, with a reasonable timeframe
• How long the warning will remain on record, and the right to appeal

Why clarity about expectations matters most

A warning that simply says "improve your performance" without specifying what improvement actually looks like gives the employee little genuine chance to succeed, and can be challenged as unfair for that reason alone. Being specific — measurable targets, deadlines, or clear conduct standards — protects both the employee's opportunity to improve and the employer's position if further action is later needed.

Frequently Asked Questions

Does every issue need to start with a first warning before anything more serious?
Not necessarily — genuinely serious misconduct can justify skipping straight to a final warning or even dismissal, but this needs to be clearly proportionate to the conduct itself.

How long should a first written warning typically last?
Six months is common, though this varies by employer policy — the specific duration should always be stated clearly in the warning itself.

See our full letter template & generator library for related letters, or use our free checkers for guidance specific to your situation.