Resignation Email Subject Lines: Types, Samples and Tips (2025)

Writing a professional resignation letter is important when you're ready to leave a job—and it starts with a clear and thoughtful email subject line. Whether you're resigning due to a move, health issues, or a new opportunity, the subject line should quickly show your intent and help set a respectful tone.

In this article, you'll find 30+ subject line examples for different situations, along with helpful tips and common mistakes to avoid.

What is the subject line in a resignation letter?

A subject line in a resignation letter is the brief line of text at the top of an email that clearly states the purpose of the message — that you are resigning from your job. It typically includes keywords like “Resignation” or “Notice of Resignation,” along with your name, job title, or last working day. This helps the recipient (usually your manager or HR) immediately understand the intent of your email.

The subject line in a resignation letter—especially when sent via email—is the first thing your manager, HR, or leadership team will see. It sets the tone for your message and helps ensure your resignation notice is received, understood, and processed in a timely and professional manner.

Types of Resignation Letter Subject Line Format

There can be many ways of writing email subject lines in formal resignation letters. A few tried and tested subject lines that you can use are as follows. 

1. Announcement of resignation – Your name

Starting with a resignation announcement in the subject line is one of the standard ways of writing the subject line of a resignation letter. Some variations of this subject line can be: 

• Resignation- Name
• Resignation and Date - Name
• Announcement Regarding Resignation –Name

While the first two ways work well, the word 'announcement' in the third one helps to grab the reader's attention even more. 

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2. Notice of resignation – Your name

This resignation letter's subject line is formal and crisp. The words 'notice of resignation' right at the start help to clarify the intent of the letter. Here are some variations for this subject line:

• Letter of Resignation- Your Name
• Formal Resignation-Your Name

3. Resignation – Your name – Your department

When sending your letter of resignation through email, this subject line should be clear, courteous, and professional. It clearly spells out all the information that the reader may require in one go. Another way to write this subject is as follows:

• Resignation – Your Name – Your Position

4. Resignation – Date – Your name

Every office has set a notice period for the employees, i.e., the time you will have to be with the company after submitting your resignation. Hence, this subject line states the date, which helps the reader to instantly get an idea of the effective date of your notice period.

A resignation letter with a notice period gives enough time for the company to find your replacement or hand over your responsibilities to some other employee. 

5. Intention of Resignation – Your name

Many resignation letter templates use this subject line as it helps convey that you are considering resigning from your post and would be open for discussion. This subject line thus leaves a scope for interaction with your boss or manager. 

6. Thank you for everything – Resignation notice

As you end your tenure at a particular office, it is always good to thank the company for all the opportunities that you have received. This subject line helps you to do this right at the start. This way appears to be formal yet warm and clearly conveys your intent to resign from your current post.

7. Resignation – Your employee ID number- Your full name – Your job title – Last working day

This subject line has many advantages.

• It immediately identifies you since you are providing the employee ID number. This may be quite useful if there are employees with the same names in your office. A subject line such as this completely avoids ambiguity. 
• It clearly states your day of departure from work. Hence, the recipient (i.e., your boss/manager) immediately gets to know about the period of your notice from your last working day. 
• This subject line is effective enough to provide all the relevant information about an employee's resignation, and even if the reader doesn't browse through the entire letter, he/she will have the necessary information through the subject line. 

8. Resignation effective immediately – Your name

In case you are not able to provide a sufficient notice period to the company and have some urgent reason for quitting your job, this subject line is the most suitable one to use.

In situations where there is a family medical emergency, or a person is resigning due to some health issue, the resignation needs to be taken into account with immediate effect. Hence, a subject line such as this will nudge the manager to open your resignation letter and take appropriate action immediately to speed up the process. 

9. Completing my tenure with (current company name)

If you want to put your resignation letter a little differently, this subject line could be a good way to do so. The word complete sufficiently conveys the intent of the letter and is a good alternative to words such as quitting or resigning. 

This type of subject line provides a neutral tone to the resignation letter. However, using this subject line will only be appropriate if you have already discussed your resignation with your manager in advance and are now providing an official intimation. If you haven't had this discussion, the subject line might lead to confusion or come as a surprise to the recipient. ‘

Importance of Subject Line in Resignation Letter

Let us consider some of the importance of an effective subject line in a resignation letter: 

Creates Clarity

A clear subject line like “Resignation – Prathush Shah” or “Notice of Resignation – Software Engineer” immediately informs the recipient of the purpose of the email. It avoids confusion and prevents your message from getting overlooked or mistaken for general correspondence.

Aids in Organization

In large companies where managers and HR handle multiple employee queries, a properly formatted subject line helps them quickly identify, categorize, and respond to your resignation without delay.

Sets a Professional Tone

Your subject line reflects your professionalism. A respectful and appropriately worded subject reinforces that you're leaving on good terms and value proper communication etiquette.

Helps in Record-Keeping

Resignation emails are often saved for official records. Including key details like your name, position, or last working day in the subject line helps HR track and archive them effectively.

Supports Smooth Transition

By using a subject line that mentions your resignation clearly and possibly your effective date, you help stakeholders prepare for necessary handovers, replacement processes, and exit formalities.

Sample Resignation Letter Subject Lines

Here are a few sample resignation letter subject lines for different situations:

Situation: Urgent resignation with no notice period

1. "Immediate Resignation - Regretfully Leaving My Position"
2. "Urgent Resignation - No Notice Period Available"
3. "Urgent Notice: Seeking Immediate Departure"

Situation: Resignation with a short notice period (Two Weeks)

1. "Resignation Letter - Two Weeks Notice: [Your Name]"
2. "Notice of Resignation - Last Day: [Your Name]"
3. "Formal Resignation - Departure Announcement: [Your Name]"

Situation: Resignation with stipulated notice period (1 Month)

1. "Resignation Letter - Notice Period: 1 Month"
2. "Formal Resignation - One Month Notice"
3. "Resignation Announcement: Early Notice"

Situation: Resignation due to unfavorable working conditions

1. Subject: Resignation - Unresolved Concerns
2. Subject: Notice of Resignation - Seeking a Change in Workplace Culture
3. Subject: Resignation Letter - Unfavorable Working Conditions

Important: Ideally, you should not write a subject line that draws attention to your negative experience. A better approach would be to mention it in your email but politely and subtly.

Situation: Formal Resignation Subject lines

1. "Resignation Letter - [Your Name]"
2. "Formal Notice of Resignation - [Your Name]"
3. "Regretful Resignation - [Your Name]"
4. "Resignation Effective [Last Working Day] - [Your Name]"
5. "Finalizing My Departure - [Your Name]"

Situation: Personal Reasons

1. "Resignation Due to Personal Reasons - [Your Name]"
2. "Personal Resignation Notice - [Your Position]"
3. "Notice of Resignation for Personal Matters - [Your Name]"

Situation: Career Advancement

1. "Resignation to Pursue New Opportunities - [Your Name]"
2. "Career Advancement Resignation - [Your Position]"
3. "Resignation Notice - New Career Path - [Your Name]"

Situation: Relocation

1. "Resignation Due to Relocation - [Your Name]"
2. "Notice of Resignation - Moving to a New City"
3. "Relocation and Resignation Notice - [Your Position]"

Situation: Health Reasons

1. "Resignation Due to Health Reasons - [Your Name]"
2. "Health-Related Resignation Notice - [Your Position]"
3. "Notice of Resignation for Medical Reasons - [Your Name]"

Situation: Higher Education/Continuing Studies

1. "Resignation for Further Studies - [Your Name]"
2. "Notice of Resignation to Pursue Higher Education - [Your Position]"
3. "Resignation Notice - Continuing Education - [Your Name]"

Common Mistakes To Avoid in Resignation Subject Lines

Finally, let us also consider some of the common mistakes that one must avoid when writing resignation email subject lines:

• Using a vague subject line that does not clearly indicate the purpose of the email
• Being too informal or casual in the subject line or using emojis
• Including unnecessary information or details in the subject line
• Using a subject line that is too long or wordy
• Failing to mention the resignation or leaving the job in the subject line
• Using a subject line that is negative or disrespectful towards the company or colleagues
• Forgetting to include important details such as your name or position in the subject line

Samples of Subject Lines in Different Resignation Letters 

1. Formal Resignation with Notice Period (Standard Situation)

Subject: Notice of Resignation – Tanish Mehta

Dear Mr. Verma,

I am writing to formally resign from my position as Marketing Executive at BrightEdge Solutions, effective 15 July 2025, in accordance with my notice period.

I sincerely appreciate the opportunities for professional and personal development during my time here. It has been a pleasure working alongside such a talented and supportive team.

Please let me know how I can assist in ensuring a smooth handover during the transition period.

Thank you once again for the experience. I look forward to staying in touch.

Warm regards,
Tanish Mehta
Employee ID: BE282
tanish.mehta@gmail.com
+91-9876XXXXXX

2. Immediate Resignation Due to Emergency

Subject: Immediate Resignation – Ramalal Nair

Dear Ms. Kapoor,

I am writing to inform you of my immediate resignation from my role as Operations Associate at Nexa Logistics, effective today, 10 June 2025, due to a personal emergency.

I deeply regret the abrupt nature of this notice and sincerely apologize for any inconvenience caused. I am grateful for the experience and support I've received over the past year.

Please let me know if I can be of assistance in any way during the transition.

Sincerely,
Ramalal Nair
ramalal.nair@gmail.com
+91-9812XXXXXX

3. Resignation Due to Health Reasons

Subject: Resignation Due to Health Reasons – Kaveshi Shah

Dear Mr. Srinivasan,

Please accept this letter as formal notice of my resignation from the position of Senior Analyst at InsightEdge Analytics, effective 30 June 2025.

Due to health issues that require my immediate attention and extended rest, I’ve decided to step back from my professional duties. I appreciate your understanding and support during this time.

I will ensure that my responsibilities are transitioned smoothly to the team before my departure.

Thank you once again for everything.

Kind regards,
Kaveshi Shah
Employee ID: IE7836
kaveshi.shah@gmail.com
+91-9012XXXXXX

 4. Resignation to Pursue Higher Education

Subject: Resignation for Further Studies – Anmolal Jograj

Dear Ms. Das,

I would like to formally resign from my position as Product Designer at Vizura Technologies, with my final working day being 5 August 2025.

I have been accepted into the Master’s program in Human-Centered Design at the University of Michigan and have decided to pursue this opportunity to advance my academic goals.

Thank you for your support, mentorship, and the incredible learning experience at Vizura. I will ensure a smooth transition and assist in any handover tasks before my departure.

Sincerely,
Anmolal Jograj
anmolal.jograj@gmail.com
+91-9888XXXXXX

5. Resignation Due to Relocation

Subject: Resignation Due to Relocation – Nehanta Kumari

Dear Mr. Malhotra,

Please accept this as formal notice of my resignation from the role of HR Coordinator at Sterling Group, with my last working day being 31 July 2025.

I will be relocating to Pune due to family commitments and will not be able to continue in my current position. I am truly grateful for the opportunity to work with Sterling and appreciate the guidance and support I received.

I’ll do my best to ensure a seamless handover before I leave.

Thank you once again.

Best regards,
Nehanta Kumari
nehanta.kumari@gmail.com
+91-9123XXXXXX

Conclusion

In conclusion, selecting the right subject line for your resignation email is essential for conveying your message clearly, professionally, and respectfully. By following the guidelines and examples discussed above, you can write a subject line that effectively communicates your intentions and establishes a positive tone for your resignation email.

Remember, a well-crafted subject line can leave a lasting impression on your employer and colleagues, so take the time to carefully consider and craft it before hitting send.

Frequently Asked Questions (FAQs)

1. What should I include in the subject line of my resignation letter?

In the subject line of your resignation letter, it is important to be clear and concise. You can include phrases such as "Resignation Letter" or "Notice of Resignation" followed by your name and the date. This helps ensure that your employer understands the purpose of the email and can easily identify it among other emails.

2. How long should the subject line be for a resignation letter?

The subject line for a resignation letter should be brief and to the point. Ideally, it should be no longer than a few words or a short phrase. This helps to grab the recipient's attention and allows them to quickly understand the content of the email.

3. Should I mention my reason for resigning in the subject line?

It is not necessary to mention your reason for resigning in the subject line of your resignation letter. The subject line should focus on clearly indicating that the email is a resignation letter and providing essential details, such as your name and the date. The reason for your resignation can be explained in the body of the email or in a separate paragraph.

4. Can I use humor or sarcasm in the subject line of my resignation letter?

While it's important to maintain professionalism in your resignation letter, using humor or sarcasm in the subject line may not be appropriate. Resignation is a serious matter, and it's best to convey your intentions clearly and respectfully. It's recommended to keep the subject line professional and straightforward.

5. Is it necessary to include my contact information in the subject line of my resignation letter?

Including your contact information in the subject line of your resignation letter is not necessary. The subject line should focus on indicating that it is a resignation letter and providing essential details. Your contact information can be included in the body of the email or your signature block.

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