Medical School Letters of Recommendation: A Guide for 2027 Applicants

Strong letters of recommendation can add something your GPA, MCAT, and activity descriptions cannot: an outside perspective on how you work, learn, communicate, and contribute.

AMCAS calls them Letters of Evaluation, but the purpose is the same. Medical schools use them to understand your academic readiness, personal qualities, professionalism, and potential as a future physician.

The key is not simply collecting enough letters. It is choosing people who know you well enough to write specific, credible evaluations.

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How Many Letters of Recommendation Do You Need?

There is no universal number for every medical school.

For AMCAS, applicants can enter up to 10 letters, but that does not mean schools want to receive all 10. Individual programs set their own requirements.

Some schools may ask for:

• A committee letter
• A letter packet
• Individual faculty letters
• Specific science faculty letters
• A research or clinical supervisor letter
• Other school-specific combinations

Before requesting letters, check the requirements for every school on your list.

Who Should Write Your Letters?

Choose people who can provide detailed examples of your abilities and character.

Strong options may include:

• Professors who taught you
• Research supervisors
• Principal investigators
• Physicians who have closely supervised you
• Clinical supervisors
• Volunteer or community-service supervisors
• Employers
• Pre-health advisers or committees

The strength of the relationship matters more than the prestige of the writer.

A detailed letter from a professor who taught you closely is usually more useful than a generic letter from a prominent physician who barely knows you.

Do You Need Two Science Letters and One Non-Science Letter?

Not necessarily. That combination is common advice, but individual medical schools set their own requirements. Some still request letters from science professors, while others accept broader combinations or a committee letter.

For DO programs, AACOM specifically notes that letter requirements vary by osteopathic medical school and applicants should verify requirements directly with each program.

Build your recommendation strategy around your actual school list rather than a universal formula.

What Makes a Strong Recommendation Letter?

A strong letter should go beyond saying that you earned a good grade or completed your responsibilities.

The writer should ideally be able to discuss qualities such as:

• Academic ability
• Critical thinking
• Communication
• Teamwork
• Reliability
• Professionalism
• Resilience
• Leadership
• Service orientation
• Curiosity
• Growth

Specific examples make these qualities more convincing.

The AAMC provides official guidelines for writing medical school letters of evaluation that applicants can share with recommenders.

When Should You Ask for Letters?

Ask early enough to give your recommenders time to write thoughtfully.

For students applying in late spring or early summer, requesting letters around February or March is often reasonable.

A good request includes:

• Why you are asking that particular person
• Your intended medical school application timeline
• A clear submission deadline
• Any required submission instructions

Giving several weeks or months of notice is much more professional than contacting someone shortly before your application becomes complete.

How Should You Ask?

Whenever possible, ask personally. You might say that you are preparing to apply to medical school and ask whether they would feel comfortable writing you a strong letter of recommendation.

Using the word “strong” gives the person an opportunity to decline if they do not feel they know you well enough.

If asking by email, keep it concise and respectful. Remind them where they know you from and why you believe they can speak meaningfully about your preparation for medicine.

What Should You Give Your Letter Writers?

Make the process easy for them.

Useful materials may include:

• Current CV or résumé
• Personal statement draft
• Transcript
• Activities list
• Career goals
• Relevant accomplishments
• Medical school application timeline
• Submission instructions
• A short reminder of projects or experiences you completed together

You can also mention qualities or experiences you hope the letter might address, but avoid trying to dictate what the recommender should write.

Their evaluation should remain genuinely independent.

How Do AMCAS Letters Work?

The 2027 AMCAS application allows applicants to enter up to 10 Letter of Evaluation entries.

AMCAS recognises three main types:

1. Individual Letter

Written by one person.

2. Committee Letter

Written by a pre-health committee or similar institutional group and may include additional letters.

3. Letter Packet

A collection of letters assembled and distributed by your institution without an overall committee evaluation.

One useful feature of AMCAS is that applicants can assign different letters to different medical schools.

For example, a research-heavy program could receive a letter from your principal investigator, while another school might receive a letter highlighting extensive community service.

Can You Add Letters After Submitting AMCAS?

Yes. You may add additional letter entries after submitting your AMCAS application as long as you have not reached the 10-letter limit. However, once an existing letter entry has been submitted, you generally cannot simply change or delete that entry.

If a recommender needs to correct the actual letter, they can upload an updated version using the same AMCAS Letter Request ID.

Do Letters Need to Arrive Before You Submit AMCAS?

No. You can submit your AMCAS primary application before all recommendation letters have arrived. However, individual medical schools may wait until required letters are received before treating your application as complete. That means you should still aim to have them submitted relatively early in the cycle.

How Do TMDSAS Letters Work?

For 2027 medical applicants using TMDSAS, applicants submit either:

• One Health Professions Committee Letter/Packet, or
• Three individual letters of evaluation

An optional fourth letter may also be submitted.

Unlike AMCAS, letters submitted through TMDSAS become available to all TMDSAS schools to which you apply. You cannot designate one letter for only one school.

For entry year 2027, TMDSAS states that letters of evaluation should be uploaded or postmarked by October 15, 2026, although schools may have their own policies regarding late letters.

Who Should Write a TMDSAS Letter?

TMDSAS recommends choosing evaluators who know you well enough to assess both your academic and personal qualities.

It specifically recommends that at least one evaluator be a current or former professor who can discuss your ability in the sciences.

Individual letters must also satisfy formatting requirements including:

• Letterhead
• Applicant's name
• Date
• Writer's contact information
• Signature
• English language

Letters missing required elements may be rejected.

What About AACOMAS Letters?

Applicants to osteopathic medical schools can submit letters electronically through AACOMAS or through other methods accepted by individual schools.

AACOM emphasises that requirements vary significantly by college, so applicants should confirm each program's expectations before selecting recommenders.

Some DO schools may value or request a physician recommendation, while others do not require one. Do not assume you need a DO physician letter unless your target programs specifically require or strongly prefer it.

Should You Waive Your Right to Read the Letters?

Applicants are commonly given the option to waive their right to access recommendation letters.

In most cases, confidential letters are preferable because they signal that the recommender was free to provide an independent evaluation. However, you should only ask people you trust to write positively and accurately about you.

If you are uncertain whether someone can support your application strongly, ask before formally assigning them as a recommender.

What If You Are a Non-Traditional Applicant?

Non-traditional applicants may have been away from university for several years and may no longer have close relationships with former professors.

In that situation, check each medical school's policies.

Possible writers could include:

• Recent science instructors
• Post-baccalaureate professors
• Employers
• Research supervisors
• Clinical supervisors
• Physicians or healthcare professionals who supervised you closely

If you return to complete prerequisite or post-baccalaureate coursework, building relationships with current instructors can provide fresh evidence of your academic ability.

Can Clinical Experience Lead to a Recommendation Letter?

Potentially, but only when the person actually supervised you closely enough to evaluate your work.

A physician you shadowed for a few hours may have very little meaningful information to contribute.

By contrast, a supervisor who observed you consistently during a substantial clinical experience may be able to discuss your communication, reliability, cultural awareness, curiosity, and professionalism.

Students completing structured pre-health and pre-med clinical internships should therefore focus on building genuine professional relationships rather than approaching the experience primarily as a way to obtain a recommendation.

A strong letter should grow naturally from meaningful work.

How to Remind a Letter Writer

If your deadline is approaching and the letter has not arrived, send a polite reminder.

Keep it simple: “Thank you again for agreeing to support my medical school application. I wanted to follow up because my planned submission date is approaching on [date]. Please let me know if there is any additional information I can provide.”

Avoid repeated reminders within a short period unless there is an urgent deadline.

Remember to Say Thank You

Writing a thoughtful recommendation requires time. Once the letter is submitted, send a brief thank-you message acknowledging the writer's support.

You can also update them later about interview invitations or acceptances. Maintaining those relationships is valuable regardless of your admissions outcome.

Frequently Asked Questions

#1. How many recommendation letters do you need for medical school?

It depends on the medical school. AMCAS allows up to 10 letter entries, but individual programs determine how many they require or accept.

#2. Do medical schools require two science letters?

Some do, but not all. Check each school's current recommendation requirements rather than assuming every program follows the traditional two-science, one-non-science model.

#3. Can I submit AMCAS before my recommendation letters arrive?

Yes. You can submit AMCAS before your letters are received. Schools may still wait for required recommendations before reviewing your application as complete.

#4. Can I add a recommendation letter after submitting AMCAS?

Yes. AMCAS allows additional letters after submission as long as you have not already entered the maximum of 10.

#5. Should I ask a doctor for a recommendation letter?

Only if the physician knows you well enough to provide specific examples of your character, abilities, and preparation for medicine. A generic physician letter is unlikely to be stronger simply because the writer is a doctor.

#6. Do DO schools require a letter from a DO physician?

Requirements vary. Some osteopathic schools may require or prefer a physician letter, but AACOM advises applicants to check each school's individual requirements.

#7. When should I ask for medical school recommendation letters?

Ideally, several weeks or months before you want the letters submitted. For a summer application, February or March is a reasonable period to begin requesting them.

#8. Can different medical schools receive different letters?

Through AMCAS, yes. Applicants can assign particular letters to selected medical schools. TMDSAS, however, distributes submitted letters to all TMDSAS schools on the applicant's list.

Article Details

Categories

Recent Articles , Med Schools, Pre-health,

Author: Tatina Himes

Date Published: Sep 15, 2026