I need to take some personal time and will leave by [time] today; I'll wrap up the urgent bits first.
Short notice
A mental health day at Short Notice: What to Tell Your Boss
When a mental health day comes up with little warning, a calm, specific message about cover matters more than a long apology.
Say what you need, briefly
Looking after your wellbeing is a valid reason to step away. A personal reason keeps it private; frame it calmly.
Handle short notice well
At short notice, acknowledge the timing briefly, state clearly what you'll leave and when, and name who covers anything urgent. Being specific about cover reassures your manager far more than an apology does.
Example messages
I'd like to take a personal day on [day] to rest and reset; I'll make sure my work is covered.
I'm not at my best today and would like to head out by [time]; I'll follow up on anything time-sensitive tomorrow.
Mistakes to avoid
Don't over-apologise for the timing or leave cover vague. State the plan clearly and keep it short.
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This page shares wording ideas, not legal or HR advice. Follow your own employer's time-off policy.
Common questions
Do I mention mental health?
No. A personal reason is complete. Share more only if it helps.
How do I handle the short notice?
Acknowledge it briefly, be specific about what you'll leave and who covers, then move on.