Application For Sick Leave (For Office)

A sick leave application is a formal written request notifying an employer of an employee's inability to work due to illness. This guide gives Indian professionals ten drafting tips and seven plug-and-play templates — covering fever, food poisoning, viral infection, one-day absence, doctor-advised rest, and email-based requests for both office and remote setups.

Each sample balances honesty about symptoms with professional brevity, and includes language for delegating workload, offering email availability, and attaching prescriptions. Pair the format with your company's leave policy and appointment-letter terms before sending, then keep a copy on file for payroll, attendance, and future HR reference.

Table of Content

Tips to write an application for sick leave
Application for sick leave: Sample 1
Sick Leave Application for Office: Sample 2
Sick Leave Application for Office Sample 3
Sick Leave Email for Office Sample 4
Sample for Sick Leave Letter for Office for One Day
Medical Leave Application for Office
Leave Letter for Fever

An employee can call in sick if he/she is unwell and not in a state to go to the office for work.

Usually, it is recommended to write a Sick leave application in order to request for a leave.

A medical certificate from a registered doctor or medical practitioner may also be required in case of a long period of absence due to sickness.

Generally, an employee is entitled to sick leave only after a stipulated period of employment in an organization. However, the case may vary for different organisations and industries.

Also, contrary to general belief a sick leave and medical leave application are different leave application letters altogether. So, talk to your HR to get clarity on the matter.

The leave application samples given below will help you craft an application for sick leave that you can send to your boss or manager to apply for sick leave.

Tips to write an application for sick leave

When writing a sick leave letter, it's essential to be clear, concise, and provide the necessary details.

Here are 10 tips to help you create a well-structured and effective application:

Use a professional format

Start with a formal header containing your name, address, contact information, date, and the recipient's details (e.g., supervisor, HR manager).

Clearly state the purpose

Begin your letter by explicitly stating that you are requesting sick leave. Mention the specific dates you need to be absent from work.

Provide a valid reason

Briefly explain the reason for your sick leave. You don't need to go into great detail but mention the illness or health condition that necessitates your absence.

Be honest and transparent

Honesty is crucial. If you're unwell, clearly state the symptoms you're experiencing and how they affect your ability to work.

Mention relevant medical information

If applicable, include relevant medical details, such as the doctor's diagnosis, prescribed treatment, or the need for bed rest.

State the duration

Specify the dates for which you are requesting sick leave. Include both the start and end date of your absence.

Inform about work responsibilities

Offer to delegate your pending tasks or responsibilities to a colleague during your absence. Assure them that you will complete pending tasks before your leave or promptly upon your return.

Follow company policy

Mention that you are following the company's sick leave policy and will provide any required documentation, such as a medical certificate, if necessary.

Express gratitude and understanding

Show appreciation for the understanding and support of your employer or supervisor. Acknowledge any inconvenience your leave might cause and assure them of your commitment to making up for lost time.

End with a professional closing

Conclude your application with a formal closing, such as "Sincerely," and sign your name below it.

Remember, every company may have slightly different policies and procedures for requesting sick leave, so it's a good idea to check your company's HR guidelines to ensure you include all the necessary information.

Additionally, submit your application as soon as possible to allow your employer time to plan for your absence.

Application for sick leave: Sample 1

Subject: Sick Leave Required

Dear Mr./Mrs. {Recipient’s Name},

I am down with fever and flu because of which I will not be able to come to the office for at least {X days}. As per my family doctor, it is best that I take rest and recover properly before resuming work.

I have asked {colleague’s name} to check on my clients and will try to periodically check my email if you need anything urgent.

Please grant me leave for the aforementioned period. If you need additional information, please let me know.

Yours Sincerely,
{Your Name}

Sick Leave Application for Office: Sample 2

Subject: Application for Sick Leave

Dear Mr./Mrs. {Recipient’s Name},

I am writing to let you know that I developed an acute case of food poisoning last night. I hoped it would go away by this morning, but it looks like I am still unwell.

Please grant me leave for {X days} days so that I can take proper rest. I will join the office after {X days}, once my health comes back to normal.

I have no immediate responsibility regarding the tasks and do not expect any urgencies. Awaiting your approval.

Yours Sincerely,
{Your Name}

Sick Leave Application for Office Sample 3

Subject: Leave Required

Dear Mr./Mrs. {Recipient’s Name},

I am emailing to inform you that I cannot make it to the office today{date} as I have come down with a case of flu. I am assuming the flu will take at least {X days} to go away. Thus, I will be back to the office on {date}.

I will be available to answer emails and phone calls if you need urgent help, however, {Colleague's name} will handle my workload today to ensure all deadlines are met.

Thank you for understanding.

Yours Sincerely,
{Your Name}

Sick Leave Email for Office Sample 4

Subject: Application for Sick Leave

Dear Mr./Mrs. {Recipient’s Name},

I would not be able to join the office today because I am under the weather and have symptoms of viral infection. I went to the doctor yesterday and he prescribed {X days} of rest.

I asked {collegue name} to handle my pending tasks, while I am away. I will be available via email for any urgent needs.

I have also attached the doctor’s note to this email.

Thank you for understanding.

Yours Sincerely,
{Your Name}

Sample for Sick Leave Letter for Office for One Day

Subject: Sick Leave Request for One Day

Dear [Supervisor/Manager's Name],

I hope this email finds you well. I am writing to inform you that I am feeling unwell and will not be able to come into the office tomorrow, [date]. I have seen a doctor who has advised me to take a day off to rest and recover. Therefore, I would like to request a sick leave for one day.

I apologize for the inconvenience this may cause and assure you that I will make every effort to minimize the impact on my colleagues and ensure a smooth workflow during my absence. I will be available via email if there are any urgent matters that require my attention.

Please let me know if there is any specific documentation or formalities required for this sick leave request, and I will provide it promptly. I will also inform my team members about my absence and delegate any pending tasks or projects to ensure that there is no disruption to the work progress.

I understand the importance of maintaining regular attendance at work, and I will make sure to complete any pending work or make up for any lost time upon my return.

Thank you for your understanding and support. I appreciate your attention to this matter and your consideration of my request. If there are any further instructions or information you require, please do not hesitate to let me know.

Wishing you and the team a productive day in my absence.

Kind regards,

[Your Name]
[Your Position/Department]
[Contact Information]

Medical Leave Application for Office

Subject: Medical Leave Request for One Day

Dear [Supervisor/Manager's Name],

I hope this email finds you well. I am writing to inform you that I am feeling unwell and will not be able to come into the office tomorrow, [date].

I have seen a doctor who has advised me to take a day off to rest and recover. Therefore, I would like to request a sick leave for one day.

I apologize for the inconvenience this may cause. I will be available via email if there are any urgent matters that require my attention.

I will also inform my team members about my absence and delegate any pending tasks or projects to ensure that there is no disruption to the work progress.

Thanks & Regards,
[Your Name]
[Your Position/Department]
[Contact Information]

Leave Letter for Fever

Subject: Request for Sick Leave due to Fever

Dear [Supervisor/Manager's Name],

I am writing to request a one-day sick leave due to a fever. I am feeling unwell and believe it's best to take a day off to rest and recover.

I will ensure to complete any pending tasks upon my return. Kindly let me know if any documentation is required. Thank you for your understanding.

Warm regards,
[Your Name]

Check out some more leave application letters for office.

FAQs:

How do you write a sick leave application?

Sick leave is best written in six steps. First, add a subject line stating Sick Leave Application followed by the dates. Second, address the recipient by name and designation. Third, state the illness and exact absence dates in the first two sentences. Fourth, mention medical certificate availability if leave exceeds three days. Fifth, name a colleague who will handle urgent tasks. Sixth, sign off with name, designation, and contact number. Keep tone factual, length under 120 words, and submit before the workday begins for fastest approval.

What is the difference between sick leave and medical leave?

Sick leave and medical leave are distinct categories under most Indian HR policies. Sick leave covers 1 to 7 days for minor illness, is paid within the annual quota, requires manager-level approval, and the certificate is optional for 1 to 2 days. Medical leave covers 7 or more days for surgery or hospitalisation, requires a mandatory certificate from a registered practitioner, is paid via ESI or the company medical policy, and needs HR plus medical board approval if extended. Confirm the exact distinction with your HR handbook, as some companies merge the two under a single sick-leave bucket.

How many sick leaves are employees entitled to in India?

In India, paid sick leave entitlement varies by state law and employer policy. The Factories Act 1948 doesn't explicitly mandate sick leave for adult workers, but state Shops and Establishments Acts typically grant 7 to 14 days of paid sick leave annually. Karnataka, Tamil Nadu, and Andhra Pradesh permit around 12 days; Maharashtra combines casual and sick leave into 21 days; Delhi grants 12 days. ESI-covered employees receive extended sickness benefits as cash compensation via the Employees' State Insurance Act 1948. Always check your appointment letter for the exact quota applicable to you.

Is a medical certificate required for sick leave?

A medical certificate is generally required when sick leave exceeds two or three consecutive days, though the exact threshold depends on the employer's policy. For one-day absences, most Indian companies accept a self-declaration in the application email. Leaves longer than three days, hospitalisation, or recurring patterns of short absences usually need a certificate from a registered medical practitioner with MCI or state council registration. Submit the certificate within 48 hours of returning to work to avoid the absence being marked as Loss of Pay (LOP) in your payroll record.

How do you write a sick leave application for one day?

A one-day sick leave application should fit under 80 words. Use this template. Subject: Sick Leave Application for the date. Body: Dear Manager's name, I am writing to inform you that I am unwell due to fever, migraine, or stomach infection and will not be able to come to work on the date. I have briefed my colleague, who will handle urgent matters in my absence. I will be reachable on email for anything critical. Thank you for your understanding. Sign off with full name, designation, and a contact number HR can reach during the day.

What is a good subject line for a sick leave email?

A strong subject line states the purpose and date in six to eight words. Recommended formats: Sick Leave Application for the date, Request for Sick Leave on the date, or Medical Leave Application from start date to end date. Avoid vague subjects like Leave or Not coming today because they get buried in inboxes and signal unprofessionalism. Including the date helps HR file the email correctly under attendance records and lets your manager triage the message without opening the body. Add Urgent only if the leave starts within four hours.

How do you write a sick leave application for fever?

Use this structure for a fever-related sick leave email. Subject: Sick Leave Request Due to Fever. Open with: I am writing to request sick leave on the date as I am running a high temperature and have been advised bed rest by my doctor. Add the expected number of days of absence, the colleague who will cover urgent responsibilities, and a line offering to share the prescription if required. Mention whether the fever is viral, dengue-related, or influenza-linked because this signals legitimacy and helps HR enforce infection-control protocols in shared workspaces. Close with appreciation and contact details.

Can an employer reject a sick leave application in India?

An employer can reject a sick leave application if it violates company policy, exceeds the sanctioned annual quota, lacks supporting documentation, or shows a pattern of misuse. However, employers cannot deny medically certified leave covered under state Shops and Establishments Acts, the Maternity Benefit Act 1961, or the Employees' State Insurance Act 1948 for insured workers. If a rejection appears unfair, employees can first escalate to HR or the grievance committee, then approach the Labour Commissioner of the relevant state. Maintain copies of the medical certificate, application email, and rejection note as evidence.

How do you inform your manager about sick leave on short notice?

Use these six steps when illness strikes before a workday. First, call or WhatsApp your manager before office hours begin, voice contact first and written follow-up after. Second, state the illness in one short sentence; graphic detail isn't needed. Third, confirm the number of days you expect to be away. Fourth, name a colleague who will cover urgent tasks. Fifth, share whether you can check email for emergencies. Sixth, send a formal written application within 24 hours, attaching a medical note if your absence exceeds the company's documentation threshold.

What should you avoid mentioning in a sick leave application?

Avoid graphic medical details, exaggerated symptoms, and unverifiable claims. Don't promise to work from bed because it weakens your case for rest and creates accountability pressure that defeats the purpose of leave. Skip emotional language like dying or extremely sick that sounds unprofessional in formal communication. Never fabricate the illness or attach forged medical certificates; under Section 197 of the Indian Penal Code, false medical documents are punishable, and most companies treat the act as gross misconduct grounds for termination. Keep the tone factual, brief, and aligned with HR policy.