If you are suffering from any illness and want to take a rest, you should write a leave request email to the manager. Below are simple sick leave email formats that you can send it your manager for approval.
Sick Leave Email to Manager for One Day (Sample 1)
Sub: Sick leave request.
Dear Sir/Madam,
I am not feeling well today (19th Sep 2024) due to a fever. Kindly grant me sick leave for today. I will resume work tomorrow.
I have informed Suresh from my team about my absence and handed over my urgent tasks. If needed, I will be available on my mobile number (98765XXX10).
Thank you for your understanding.
Regards,
Rajesh Kumar,
Software Developer.

Sick Leave Email to Manager for One Day (Sample 2)
Subject: Sick leave request today.
Dear Sir/Madam,
I have been suffering from severe stomach upset since morning. I will not be able to come to the office today (20th Sep 2024). Please approve my leave for one day.
I have updated [Colleague Name] about my ongoing projects, and she will handle any immediate concerns. You can reach me on my personal number (98765XXX10) if there is any urgency.
Regards,
Gayatri Jain,
Accounts Executive.
Sick Leave Email to Manager for One Day (Sample 3)
Sub: Leave application.
Dear Sir/Madam,
I have a bad headache and cannot concentrate on work. I request sick leave for today (01 Oct 2024). I will complete pending tasks after returning.
I have informed [Colleague Name] about the current status of our team project. In case of any urgent tasks, please feel free to contact me on 98765XXX10. Despite my condition, I will do my best to respond promptly.
Thanks and Regards,
Prasanth B,
Quality Incharge.
Sick Leave Email to Manager for One Day (Sample 4)
Sub: Medical leave request.
Dear Sir/Madam,
I need to visit the doctor today (11 Oct 2024) for my ongoing treatment. Kindly grant me leave for today.
I have informed [Colleague Name] about my absence and shared the necessary files for the morning meeting. In case of any urgent matters, you can reach me on my mobile phone (98765XXX10).
Yours sincerely,
Sahasra,
Receptionist.
Sick Leave Email to Manager for One Day (Sample 5)
Sub: Sick leave request.
Dear Sir/Madam,
I have a viral fever and the doctor advised me to rest. I will be on sick leave for today (21 Sep 2024). I will keep you updated about my health.
[Colleague Name] and I discussed my current projects in detail and he will be taking care of my responsibilities during my absence.
Despite my rest, I will check my phone (88765XXX21) regularly for any important messages.
Regards,
Ravi Kumar,
Production Supervisor.
✅ Tips to Write an Effective Sick Leave Email
- Write a clear subject line that says what the email is about
- Use proper greetings like Dear Sir/Madam, Respected Sir/Madam, and Dear [Manager’s Name]
- Mention the exact date of leave
- Tell me when you will return to work
- Inform that you handed over urgent work to the team member
- Provide your mobile number in case of urgent tasks
- End with polite thank you and letter closings like “Regards” or “Sincerely”
❌ Don’t Do These 5 Mistakes While Writing Sick Leave Email
- Not Specifying the subject line as “Sick Leave Request”
- Not mentioning the exact dates of the leave (or) enough details about the sickness if required
- Using informal language, which makes the email unprofessional
- Not specifying the exact number of days of the leave
- Missing contact information in case of any urgent tasks
- Not planning any back plan on how to manage work in your absence
- Not following company policy about leave
FAQs
No, it is not mandatory to mention the exact reason for 1 or 2 days of leave. however, if you take more than 2 days of leave you should specify the sickness reason.
It depends on how your absences affect the workplace, some jobs don’t need any backup plans, but some jobs need a replacement in case of the absence of the employee. So according to your job requirements, you should plan.
If you are unsure about recovery time, you can write like this “I hope to recover quickly and update my health condition tomorrow” instead of “I will resume work tomorrow”
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