If you are looking for a simple leave application format for your office to apply for sick leave, earned leave, and casual leave, here you can download the best leave form, which is editable in PDF format.
Or you can also download the Word format. As an HR professional, this is the format I use in my company, so you can also make use of it.
Employee Leave Application Format for Office

Sample Employee Leave Application Format for Office

FAQs:
Choose the leave type that matches your situation and your leave balance. You can choose Casual Leave (CL), Earned Leave (EL) and Sick Leave (SL).
If you are not sure, ask your HR department.
Count all the leaves from the start date to the end date. Check your company’s leave policy to see whether weekends or public holidays are included.
Write a short and clear reason, such as “personal reasons”, “medical treatment”, “family function”, or “emergency”, etc.
For sick leave, you may need to attach a medical certificate or doctor’s note if your HR asks.
1 to 3 days before planning the leave.
Yes, in case there are any valid business reasons like staff shortage and important work deadlines. So it is better to inform of the leave as early as possible.