How to Write a Letter of Resignation Due to Illness

By Indeed Editorial Team

May 24, 2021

When leaving a job for any reason, you need to write and submit a resignation letter to your employer to give them notice and professional respect. However, circumstances sometimes dictate that the resignation takes effect immediately, such as in the case of an unexpected illness. In this article, we outline the process of writing a resignation letter to withdraw from a job due to serious illness as well as provide several examples to help you when writing your own.

What is a resignation letter due to illness?

A resignation letter is a formal letter written by an employee informing an employer of the employee's intent to leave their current position. A letter of resignation is often taken as legal notice of departure and is typically kept in the employee's file after they vacate their position for proof of resignation, should it be required in any future inquiries.

When leaving a position due to illness or health concerns, it's not always possible to provide advance notice. An illness resignation letter is an acceptable form of notification to your employer and is helpful when you need to convey to them that your health problems are preventing you from performing the day-to-day responsibilities of your job. This formal notification should help to facilitate amicable terms of resignation.

Related: How to Hand in a Resignation Letter (With Tips and Example)

How to write a resignation letter due to illness

When resigning for any reason—including serious illness—your resignation letter can be delivered via email or as a formal, business-formatted letter. Here are the elements you should include in a basic letter of resignation due to illness:

  1. Greeting

  2. Statement of resignation and date of last working day

  3. Reason for leaving

  4. Thanks and well wishes

  5. Closing and signature

1. Greeting

Your letter should open with an appropriate salutation. This can be "Dear Mr./Ms. Last name" or "Dear First name" depending on your relationship with your supervisor and the level convention of your office.

2. Statement of resignation and date of last working day

The opening paragraph of your letter should include the statement that you are resigning from your position and your projected last day of work.

3. Reason for leaving

You can use the next paragraph to explain why you're leaving if you wish to share that information. Remember that you are not required to disclose any details of your situation and this step is purely based on your level of comfort.

4. Thanks and well wishes

Use your final paragraph to thank your company or supervisor, expressing your appreciation for the experience you gained while with the company and the opportunities you enjoyed there. You may, if you wish, invite your supervisor to remain in touch, personally or professionally, and include your personal contact information for them to do so. Optionally, you can offer to help make the transition smooth, either by helping to find a replacement for your role or training a replacement before your last day.

5. Closing and signature

Close with an appropriate valediction such as "Sincerely" or "Kind Regards" followed by your signature and your typed first and last name. You may reiterate your contact information underneath your typed name. In an email, your contact information should always be included in your signature.

Related: 6 Musts for a Resignation Letter: What to Include in Your Resignation Letter (Plus Tips and Example)

Resignation due to illness letter template

You can follow this template to create your letter:

[Your name]
[Your address]
[Your city, state zip code]
[Your phone number]
[Your personal email address]
[Date of letter]

[Recipient/Employer name and title]
[Name of company]
[Company address]
[City, state zip code]

Dear [Recipient]:

This letter is to serve as my resignation from [Position] at [Company], effective [Resignation date].

I am regretfully resigning due to a serious health complication. My doctors and I feel it would be best to remain focused on recovering, which, unfortunately, includes stepping down from my duties at [Company], as I am unable to meet the expectations as [Position] while struggling with this illness.

I could not be more grateful for all of the opportunities I've had to grow and make lifelong friends during my time at [Company]. I'd like to thank you deeply for your guidance and support during my employment.

Please feel free to let me know how I can assist with making the transition as smooth as possible. I wish you and [Company] the very best in the future.


[Your signature] (hard copy letter)

[Your typed name]
[Your phone number or personal email] (optional)

Related: How to Explain Your Reasons for Leaving a Job (With Examples)

Resignation due to illness letter examples

If you find yourself in a situation in which you must leave your job for medical reasons, using a sample resignation letter due to illness for reference can help you start composing your own. Here are a few examples of resignation letters due to illness:

  • Example 1: Resignation with more than two weeks' notice

  • Example 2: Immediate resignation

  • Example 3: Resignation with two weeks' notice

  • Example 4: Email

Example 1: Resignation with more than two weeks' notice

Deanna Moore
767 West Thatcher Rd.
Encino, CA 91316
June 14, 2013

Paulette Yates, Director of Communications
Marketing Volt, LLC
222 Carpenter Ave., Ste. 1F
Encino, CA 91316

Dear Paulette,

Effective as of the date of this letter, please accept this notification that I intend to resign from my position as Events Coordinator at Marketing Volt. My last day of work will be July 15, 2013.

It is with deep regret that I withdraw from this position. Due to ongoing health concerns, it is no longer possible to fulfill my duties with the company.

I'd like to thank you for the guidance, support and growth opportunities I have enjoyed in the four years I have been employed with the company. If I can contribute in any way to making the transition smoother, please feel free to let me know.

Should you require any additional information, please do not hesitate to contact me at the number below.


Deanna Moore (signed)

Deanna Moore (typed)

Example 2: Immediate resignation

Paul Bock
7063 Purple Finch Road
Durham, NC 27703
(754) 878-2647
June 27, 2019

Mr. Phillip Harlowe
Director of Human Resources
TransShipping, Inc.
637 Northern Blvd.
Durham, NC 27703

Dear Mr. Harlowe:

It is with deep sadness that I must inform you of my decision to resign immediately from my position as Account Manager for TransShipping, Inc. due to my failing health. At this time, it is recommended by my team of physicians that I remove myself from the workplace to better focus on regaining my health.

I've so enjoyed working at TransShipping, Inc., and I am deeply saddened that I will not be associated with the company in the future.

I understand that sufficient notice of my intent to leave is expected, but unfortunately, I am not well enough to complete the notice period, which is why I have requested an immediate release.

I will be available on a sporadic basis (as my pain allows) if you would like me to help train the person who will replace me. Thank you for all you've done to contribute to my professional growth, and please feel free to keep in touch.


Paul Bock (signed)

Paul Bock (typed)
(754) 878-2647

Related: Your Emergency Resignation Letter: How to Do It Correctly (With Samples)

Example 3: Resignation with two weeks' notice

Kenneth Ruiz
Floor Supervisor
Supply Master Manufacturing
261 Hill Lane
Vincentown, NJ 08088
August 30, 2019

Neil Robbins
Human Resources Director
Supply Master Manufacturing
261 Hill Lane
Vincentown, NJ 08088

Dear Mr. Robbins,

Please accept this letter as notice of my resignation due to a serious illness with which I have recently been diagnosed. My last day of employment as Floor Supervisor at Supply Master Manufacturing will be September 16, 2019.

You may or may not be aware that I am in the early stages of thyroid cancer and will soon begin treatment. My doctors have insisted that it is in the best interest of my recovery to focus completely on my health for the foreseeable future.

I hope that my departure does not cause undue stress or inconvenience. I will work for the next two weeks to complete as many unfinished projects as I can. I am happy to assist in training a replacement. Please feel free to call me at (646) 546-8436 or email me at for any reason.

Thank you for your support and understanding.


Kenneth Ruiz (signed)

Kenneth Ruiz (typed)
646) 546-8436

Example 4: Email

Subject: Resignation—Joshua Lambert

Dear Mr. Adkins,

I regret to inform you of my resignation, effective June 26, 2020. Due to a recent cancer diagnosis, I will require extended treatment and recovery, and I am unsure of whether my ability to perform the duties of my job will return.

I appreciate your understanding. If there is anything I can do to help during the transition, please let me know.


Joshua Lambert
475-268-2648 (mobile)

Related: Top Resignation Letter Samples for Personal Reasons

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