Guide
Leave applications for work, school and college, with the days counted
A leave application is one of the most common formal letters people write, and one of the shortest. It has to say who is asking, for what kind of leave, from when to when, and why. A clear letter helps the approver decide quickly and leaves a record. This generator covers three situations: an employee asking an employer, a student asking a school or college, and a parent writing for a child.
Choosing the writer
The first choice is “Written by”: an employee for leave from work, a student for leave from school or college, or a parent for a child’s leave. A parent adds the child’s name, and for the others you give your job title or your class and roll number. The greeting is “Dear Sir or Madam,” for an employee, and “Respected Sir or Madam,” for students and parents, with closings “Yours sincerely,” and “Yours obediently,” to match.
What to enter
Give your name and the person you are addressing, such as a manager or principal, and the company, school or college. Pick the type of leave: casual, sick, annual, personal, family function or family emergency. Enter the first and last day of leave and the reason. An employee can also name a colleague who will cover urgent work, and everyone can give a contact for the leave period. For sick leave, a switch adds a line saying a medical certificate is attached. The date of the letter is optional.
How the days are counted
The tool counts every calendar day from the first date to the last, inclusive, and prints it in the subject, for example “Application for sick leave (3 days)”, and in the first sentence. Leave from 12 to 14 November 2026 is three days. If the last date is before the first, no count is printed. Your employer or school may count only working days or may treat part days differently, so use the dates to match what you will actually miss.
The text of the letter
For an employee it says “I am writing to request sick leave from 12 November 2026 to 14 November 2026, a total of 3 days”, states the reason, notes the certificate, says who will cover urgent work and that pending tasks will be finished or handed over, adds contact details and asks for the leave to be granted. For a parent, the sentence reads “I am writing to request family function leave for my child, [name]” and ends by asking to grant “this leave for my child”.
Two worked letters
The first sample is Neha Joshi, a Frontend Engineer, writing on 11 November 2026 to Mr Karan Mehta at Northwind Software Pvt Ltd for sick leave from 12 to 14 November 2026 because of viral fever, advised by her doctor. Rahul Verma is covering her work, she gives a phone number and a medical certificate is attached. The second sample is Ramesh Kulkarni writing to the Principal of Sunrise Public School on 25 November 2026 for leave for his child, Aarav Kulkarni of Class 7B, from 2 to 4 December 2026, for a family wedding out of town, three days in all.
Tips
Apply as early as you can for planned leave, and as soon as possible for illness. Keep the reason honest and brief. Check the policy for notice, approval steps and whether leave is paid. Confirm the approval in writing and keep a copy of the letter. Students should also tell their class teacher and ask for missed work.
Limits
The tool writes a letter, but it does not know your leave balance or policy, and it does not submit anything. Entitlements differ widely by country, employer and school. The text is a general format, not legal or HR advice.
Related tools
- Resignation Letter Generator covers a permanent departure rather than time away.
- Bonafide Certificate Generator is another letter families often request from a school.
- NOC Generator records permission for a longer or special absence, such as travel.
- Timesheet Generator helps you track the days and hours you actually work.
Checked against the current version of the Leave Application Generator on .