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How to Email Your Boss That You're Taking a Sick Day

Calling in sick should not require a performance. Keep it short, direct, and drama-free. Your boss needs to know one thing: you are not coming in today. These emails handle it professionally without oversharing.

Updated Apr 14, 2026Reviewed by What Do I Text? editors

Simple Sick Day Email

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Hi [Manager Name], I am not feeling well today and will need to take a sick day. I do not have anything urgent that cannot wait until tomorrow, but [Name] is aware of [any handoffs if applicable]. I will keep an eye on email in case anything critical comes up, but I plan to rest and hope to be back tomorrow. Thank you for understanding. [Your Name]

Subject Line

Sick Day - [Your Name] - [Date]

Alternative Versions

More Direct Version

direct

Hi [Manager], I'm sick and won't be in today. Nothing urgent pending. I'll be back tomorrow. [Your Name]

Warmer Version

warm

Hi [Manager], Unfortunately I woke up feeling pretty under the weather today. I'm going to take a sick day to rest and recover. I don't want to push through and end up being out even longer. I've flagged [any time-sensitive items] for [colleague name]. I'll plan to be back tomorrow feeling much better. Thanks for understanding! [Your Name]

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When to Use This

Use this when: • You are genuinely unwell • You need a day to recover • Your workplace expects email notification • You want to be brief and professional

What Not to Say

Avoid: • Over-describing your symptoms • Saying "I think I might be sick" -- be definitive • Apologizing excessively • Offering to work from home if you are truly sick • Posting on social media while "sick"

Follow-Up Message

If You Need to Follow Up

Hi [Manager Name], Just a quick update — I am feeling much better and plan to be back in tomorrow. I have checked my email and will catch up on anything urgent first thing. Thank you for understanding yesterday. [Your Name]

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