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A sick leave application for school is a short formal request informing the school that a student cannot attend classes because of illness. It should clearly mention the student’s name, class, reason for absence, dates of leave and, where appropriate, a parent’s signature or contact details.

Whether you are a student writing to the class teacher or a parent requesting leave for your child, the application does not need to be lengthy. A clear and polite note is usually enough. For families in Gurugram and Delhi NCR, having a few ready-to-use formats can make it easier to communicate an unexpected absence promptly.

This guide explains how to write a sick leave application for school and provides copy-ready formats for fever, one-day leave, two- or three-day illness, parent requests and applications submitted after a student has already been absent.

How Do I Write a Sick Leave Application for School?

A good sick leave application should be brief, specific and respectful. The school should be able to understand who is requesting leave, why the student is absent and how long the absence is expected to continue.

Include these basic details:

• Date of the application
• Name of the teacher or Principal
• Subject of the application
• Student’s name
• Class and section
• Reason for leave
• Dates or duration of absence
• Request for leave
• Parent’s or student’s name and signature, as appropriate

A simple structure is:

Subject: Application for Sick Leave

Respected Sir/Madam,

I am [Student Name], a student of Class [Class and Section]. I am unwell and have been advised to take rest. Therefore, I request you to kindly grant me leave from [Date] to [Date].

I will return to school once I have recovered and complete the missed classwork.

Thank you.

Yours sincerely,
[Student Name]
Class [Class & Section]
[Roll Number, if required]

The exact submission process can differ from one school to another, so students and parents should follow their school’s stated procedure.

How Do I Write a Sick Leave Application to the Principal?

When the application is addressed to the Principal, the wording should remain formal but does not need to become unnecessarily long. The main purpose is to communicate the absence clearly.

Sample application to the Principal

Subject: Sick Leave Application

Respected Sir/Madam,

I am [Student Name], studying in Class [Class and Section]. I am suffering from [illness/fever] and am unable to attend school. I have been advised to take rest for [number of days] days.

I therefore request you to kindly grant me leave from [Start Date] to [End Date].

I shall be grateful for your consideration.

Yours obediently,
[Student Name]
Class: [Class & Section]
Roll No.: [Roll Number]

For younger children, a parent or guardian can submit the application on the child’s behalf.

How Do I Write a Sick Leave Application for School from Parents?

For younger students, particularly those in the Early Years and Primary classes, parents commonly communicate the reason for absence on behalf of the child. The application should identify the student and make it clear that the parent is requesting leave.

Parent format for a child’s illness

Subject: Sick Leave Application for [Child’s Name]

Respected Sir/Madam,

I am the parent of [Child’s Name], studying in Class [Class and Section]. My child is unwell and has been advised to take rest at home.

I kindly request you to grant [him/her] leave from [Start Date] to [End Date].

We will ensure that the missed schoolwork is completed after [his/her] return.

Thank you for your understanding.

Yours sincerely,
[Parent’s Name]
Parent of [Child’s Name]
Class: [Class & Section]

Parents should check whether their child’s school requires the application through a particular diary, parent portal, email or other communication channel.

How Do I Write a Sick Leave Application for School Due to Fever?

A fever is one of the most common reasons for a short school absence. There is no need to provide unnecessary medical details in a routine leave application. Simply state that the student has a fever or is unwell and needs rest.

Leave letter for fever

Subject: Sick Leave Application Due to Fever

Respected Sir/Madam,

I am [Student Name], a student of Class [Class and Section]. I am suffering from fever and am unable to attend school.

I request you to kindly grant me sick leave for [number of days], from [Start Date] to [End Date]. I will resume school once I have recovered.

Thank you.

Yours sincerely,
[Student Name]
Class: [Class & Section]

For a parent-written version:

Subject: Leave Application Due to Fever

Respected Sir/Madam,

My child, [Child’s Name], of Class [Class and Section], is suffering from fever and has been advised to rest at home. Therefore, I request you to kindly grant leave from [Start Date] to [End Date].

Thank you for your consideration.

Yours sincerely,
[Parent’s Name]

A medical certificate should only be mentioned or attached when required by the relevant school or applicable procedure.

How Do I Write a One-Day Sick Leave Application for School?

A one-day application can be very short. The important information is the date of absence and the reason.

One-day sick leave format

Subject: One-Day Sick Leave Application

Respected Sir/Madam,

I am [Student Name], studying in Class [Class and Section]. I am unwell and unable to attend school on [Date].

Kindly grant me leave for one day. I will attend school from the next working day, subject to recovery.

Thank you.

Yours sincerely,
[Student Name]
Class [Class & Section]

Parent version

Respected Sir/Madam,

My child, [Child’s Name], of Class [Class and Section], is unwell and will not be able to attend school on [Date]. Kindly grant leave for one day.

Thank you.

Yours sincerely,
[Parent’s Name]

This format is useful when an illness is expected to last only a short time and the school needs a formal record of the absence.

How Do I Write a Sick Leave Application for 2 Days?

For a two-day absence, mention both the starting and ending dates rather than simply writing “two days.” This removes ambiguity for the teacher or school office.

Two-day sick leave application

Subject: Application for Sick Leave for Two Days

Respected Sir/Madam,

I am [Student Name], a student of Class [Class and Section]. I am unwell and need to take rest at home.

Therefore, I request you to kindly grant me sick leave for two days, from [Start Date] to [End Date].

I will return to school after recovering and complete the work missed during my absence.

Thank you.

Yours sincerely,
[Student Name]
Class [Class & Section]

If the leave is being requested by a parent, replace the first paragraph with:

My child, [Child’s Name], studying in Class [Class and Section], is unwell and unable to attend school for two days.

Then mention the exact dates.

How Do I Write a Sick Leave Application for 3 Days?

A three-day application follows the same basic format. It is helpful to state the reason briefly and give the exact dates.

Three-day sick leave format

Subject: Application for Sick Leave for Three Days

Respected Sir/Madam,

I am [Student Name] of Class [Class and Section]. I am suffering from [fever/illness] and have been advised to take rest.

I therefore request you to kindly grant me leave for three days, from [Start Date] to [End Date].

I will resume school after recovery and complete the pending classwork.

Thank you for your consideration.

Yours sincerely,
[Student Name]
Class [Class & Section]

Parent-written version

Respected Sir/Madam,

I am writing to inform you that my child, [Child’s Name], of Class [Class and Section], is unwell and will be unable to attend school for three days, from [Start Date] to [End Date].

Kindly grant the required leave. We will ensure that the missed work is completed after the child returns to school.

Yours sincerely,
[Parent’s Name]

If the illness continues beyond the period originally requested, a further communication may be appropriate depending on the school’s procedure.

How Do I Write a Sick Leave Application After Being Absent from School?

Sometimes a student becomes ill suddenly and the family is unable to submit a leave application before the absence. In that situation, the application can be written after the student returns or as soon as practical.

The note should acknowledge the dates of absence and briefly explain the reason.

Post-absence sick leave application

Subject: Application for Leave Due to Illness

Respected Sir/Madam,

I am [Student Name], a student of Class [Class and Section]. I was unable to attend school from [Start Date] to [End Date] because I was unwell.

I kindly request you to consider my absence as sick leave. I have now recovered and am ready to resume classes.

I apologise for not being able to inform the school earlier and will complete the work missed during my absence.

Thank you for your understanding.

Yours sincerely,
[Student Name]
Class [Class & Section]

Parents can use a similar format when explaining a child’s previous absence.

For example:

My child, [Child’s Name], of Class [Class and Section], was absent from school from [Date] to [Date] due to illness. I request you to kindly record the absence as sick leave.

The application should be truthful and should not include a medical diagnosis unless it is relevant or specifically required.

What Should You Include in a Sick Leave Application?

A useful sick leave application answers five simple questions:

A common mistake is writing a long explanation of symptoms. Usually, this is unnecessary. The school primarily needs enough information to record and process the absence.

Another mistake is leaving out the dates. “I was sick” does not tell the school whether the student needs leave for one day or several days.

Keep the tone polite, factual and concise.

What If the School Has Its Own Leave Procedure?

A general sick leave format is useful, but the school’s own rules should always take priority.

For example, DPS Sushant Lok currently states that an application for leave of absence, with supporting documents where applicable, should be submitted to the Class Teacher for leave up to one week. Longer periods are routed to the Vice Principal/Headmistress or Principal according to the duration. The school also states that students absent because of illness for seven days or more must produce a Medical Certificate on joining school, and parents are required to record the reason for each day of absence in the Almanac.

Parents and students can therefore review the DPS Sushant Lok school rules before submitting a leave request.

These requirements are school-specific and should not be treated as a universal rule for every school in Gurugram or Delhi NCR.

Common Mistakes to Avoid in a Sick Leave Application

Even a short application can be made more effective by avoiding a few common errors.

1. Not mentioning the dates

Always state exactly when the student will be absent whenever the dates are known.

2. Giving too much medical information

A leave application usually does not require a detailed description of symptoms. Keep the explanation relevant.

3. Using an overly casual tone

A message such as “My child is sick, so won't come tomorrow” may communicate the basic information but does not work as a formal leave application where one is required.

4. Forgetting the student’s class

Teachers may have several students with similar names. Class and section make identification easier.

5. Making unsupported medical claims

Do not add a diagnosis, prescription or medical certificate unless it is genuine and relevant.

6. Ignoring the school’s submission method

Some schools may use a diary, parent portal, email or another established process. The format of the application and the method of submitting it are separate matters.

Quick Copy-and-Use Sick Leave Template

If you need a simple format without additional explanation, use this:

Subject: Sick Leave Application

Respected Sir/Madam,

I am [Student Name] of Class [Class and Section]. I am unwell and unable to attend school from [Start Date] to [End Date].

I kindly request you to grant me sick leave for the mentioned period. I will resume classes after recovery and complete the work missed during my absence.

Thank you.

Yours sincerely,
[Student Name]
Class & Section: [Class/Section]
Roll No.: [Roll Number]

For parents:

Respected Sir/Madam,

I am the parent of [Child’s Name], studying in Class [Class and Section]. My child is unwell and will be unable to attend school from [Start Date] to [End Date].

Kindly grant the required sick leave.

Thank you.

Yours sincerely,
[Parent’s Name]
Parent of [Child’s Name]

Conclusion

A good sick leave application for school should be short, polite and complete. Mention the student’s details, reason for absence and exact dates, then follow the school’s required submission procedure. Students can use the simple formats above for routine illnesses, while parents can adapt them for younger children. If a school requires supporting documents for longer illness-related absences, those requirements should be followed separately.

Frequently Asked Questions

Q. What Is the Format of a Sick Leave Application for School?

A. A standard format includes the date, recipient, subject, student’s name, class and section, reason for leave, dates of absence, request for leave and the student’s or parent’s name and signature. The application should be brief and formal.

Q. How Do I Write a Short Sick Leave Application for School?

A. Keep it to three or four sentences. Mention that the student is unwell, provide the date or dates of absence and request leave. For example: “I am [Name], a student of Class [Class]. I am unwell and unable to attend school on [Date]. Kindly grant me leave for the day. Thank you.”

Q. Should a Parent Sign a Sick Leave Application?

A. If the application is being submitted by a parent, the parent should identify themselves and sign or submit it through the method prescribed by the school. Requirements can vary by school and age group.

Q. Should I Mention the Exact Illness in a School Leave Application?

A. Not always. A simple statement such as “I am unwell” or “I am suffering from fever” is generally sufficient for a routine application. More detailed medical information should only be included when relevant or specifically required.

Q. Is a Medical Certificate Required for Sick Leave?

A. It depends on the school’s rules and the duration or circumstances of the absence. Parents should check the relevant school policy rather than assuming that a medical certificate is always required.

Q. Can a Sick Leave Application Be Submitted After the Student Returns?

A. If the student was unexpectedly absent, a post-absence application can explain the dates and reason for the absence. However, the school may have its own procedure for recording previous absences, so parents should follow that process.

Q. Can I Send a Sick Leave Application by Email?

A. If the school accepts leave requests by email, you can use the same basic structure in the email body. Check the school’s official communication procedure before relying on email.

Q. What Should a Parent Write When a Child Has Fever?

A. The parent can state that the child is suffering from fever, mention the dates of absence and request leave. A detailed description of symptoms is usually unnecessary unless the school specifically asks for additional information.

Q. What Should a Student Do About Missed Classwork After Sick Leave?

A. The student should check with the teacher or classmates for lessons, assignments and other work missed during the absence. Completing the pending work after returning helps the student stay on track.

Q. Is the Same Sick Leave Format Suitable for Every School?

A. The basic structure is widely useful, but submission procedures and supporting-document requirements can differ. Students and parents in Gurugram and Delhi NCR should always check the rules of their particular school before submitting the application.