This letter below is a sample leave letter. Read it to understand how a leave letter should be written.

From:
[Your name]
[Street Address]
[City,State,Zip code]

To
[Name of the Receiver]
[Street Address]
[City,State,Zip code]
Date MM/DD/YYY

Dear [Receiver],
I wish to apply leave for Thursday , 8th November 2008, as i have an appointment with a Doctor. I cannot miss out on this appointment as it is regarding my health condition.I thus request you to kindly grant me one day’s casual leave for the same.

Thanking you
Yours sincerely

[Your Signature]
[Your name]