Writing a sick leave application requires clarity and politeness. State your intention clearly, including the number of days you need leave, the dates, and the reason. Mention if a medical certificate is required. Ensure to maintain a formal tone throughout the letter.
Sample Sick Leave Application
A sick leave application is generally written in case a person is not feeling well or has ill health. A sick leave application is most commonly used in schools, colleges, banks, universities, offices, and institutions. The sick leave application should be written in a formal way.
Usually, a medical certificate may also be required along with a sick leave application, so that there is no misuse of sick leave, However, It is important to know that, submission of a medical certificate becomes mandatory in some places if taking sick leave for a long duration.
One thing you should keep in mind while writing sick leave is that you must mention the number of days you are taking leave along with the days.
Sick Leave Application Sample Format:
From,
__________
__________
__________ (Sender’s Details)Date: __/__/____ (Date)
To,
__________
__________
__________ (Recipient Details)Subject: Requesting sick leave
Respected Sir/ Madam,
My name is ______ (Name) and I am writing this letter in order to request you for sanctioning medical leave for ______ (Number of days) days from __/__/____ (Date) to __/__/____ (Date).
The reason for requesting leave for the above-mentioned days is __________ (mention reason).
I ensure that the requested leave will be used for medical purposes only and any pending work will be completed once I resume work. I look forward to your kind approval.
Thanking you,
__________ (Signature)
__________ (Name)
__________ (Contact Details)
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Sandeep Bhandari 
Deepanshu Thakral