How to Write a Strong Residency Letter of Interest (2026 Guide)

If you’re applying for residency, one tool that can help you stand out is a Letter of Interest (LOI). This short, formal document allows you to communicate your enthusiasm for a program, highlight your most relevant experiences, and show program directors why you’d be an excellent fit.

In this guide, we’ll cover what a residency LOI is, why it matters, when to send it, what to include, and common mistakes to avoid.

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What Is a Residency Letter of Interest?

A residency letter of interest is a professional letter sent to program directors expressing your desire to join their program. It goes beyond what’s already on your ERAS application by giving you space to:

• Explain why you’re drawn to their specific program.
• Highlight any new accomplishments since submitting your application.
• Reiterate your qualifications and career goals.
• Convey enthusiasm and professionalism.

While a letter of intent usually carries a strong commitment (such as promising to attend if accepted), a letter of interest is less binding—it’s meant to signal genuine enthusiasm and keep you top-of-mind with program staff.

Why Write a Letter of Interest?

Writing an LOI can help you in several ways:

I. Demonstrates enthusiasm 

Shows that you’ve done your research and are truly motivated to join that program.

II. Provides updates 

A chance to share recent achievements, research, or honors not included in your original application.

III. Builds relationships 

Opens a line of communication with faculty and directors.

IV. Strengthens your application 

Particularly useful if you haven’t been invited to interview yet or are on a waitlist.

When Should You Send It?

The best time to send a letter of interest is after submitting your application and/or after your interview. Sending it later in the process helps reinforce your interest and ensures the program is aware of your continued commitment.

What to Include in a Residency Letter of Interest

Keep your letter concise (200–300 words, one page maximum) and professional. A solid structure includes:

1. Greeting

• Address the Program Director by name and title (avoid “To Whom It May Concern”).
  
  

2. Opening Paragraph

• State your interest in the program and why it appeals to you.

3. Middle Paragraphs

• Highlight relevant qualifications, recent achievements, and specific program features that align with your career goals.
• Explain how you will contribute to the program community.

4. Closing Paragraph

• Reiterate your enthusiasm.
• Invite them to review your ERAS application and thank them for their time.

5. Signature

• Include your name, AAMC ID, and contact details.

Tips for Writing an Effective LOI

I. Be specific 

Reference unique aspects of the program that resonate with you (faculty, research focus, patient population, etc.).

II. Stay professional 

Use formal language and avoid slang or casual expressions.

III. Personalize each letter 

Never send a generic letter to multiple programs.

IV. Proofread carefully 

Errors can make your letter less persuasive.

V. Keep it positive 

Focus on fit, not on comparisons or complaints about other programs.

Common Mistakes to Avoid

1. Sending the same generic letter to every program.
2. Writing a long, unfocused essay instead of a concise letter.
3. Failing to mention program-specific details.
4. Overly casual or overly stiff tone.
5. Exaggerating or misrepresenting your experiences.
6. Forgetting to proofread.

Example Residency Letter of Interest (Template)

[Your Name]  
[Your Address]  

[Program Director’s Name, Title]  
[Residency Program Name]  
[Program Address]  
[City, State, ZIP Code]  

Dear Dr. XYZ,  

I am writing to express my strong interest in the [Residency Program Name] [Specialty] residency program. After learning more about your program through [specific detail: interview, rotation, open house, etc.], I am excited about the opportunity to train at [Residency Program Name].  

My experiences in [specific clinical/research experience] have prepared me to thrive in a program with a strong focus on [specific program features]. I was particularly impressed by [mention something distinctive about the program patient population, curriculum, mentorship, etc.], which aligns closely with my career goals of becoming a [specialty] physician committed to [career focus, e.g., academic medicine, underserved care, research].  

I believe my background in [relevant experience] and dedication to [specialty] will allow me to contribute meaningfully to your residency community. Thank you for your time and consideration, and I look forward to the opportunity to continue growing within [Residency Program Name].  

Sincerely,  

[Your Full Name]  

AAMC ID

Final Thoughts

A letter of interest is a simple but powerful way to show residency programs that you’re motivated, prepared, and committed to joining their community. Keep it clear, professional, and personalized and you’ll increase your chances of standing out in a competitive match cycle.

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Article Details

Categories

Recent Articles , Medical Electives, Residency,

Author: Go-Elective Abroad

Date Published: Dec 15, 2025