ERAS Letter of Recommendation: Portal, Letter ID, Upload Status, and Timing

Letters of recommendation sit alongside your personal statement and experiences as the parts of an ERAS application that depend most on other people. That makes timing and relationships matter as much as the letters themselves. If you are building your full application picture, start with our ERAS application guide and ERAS timeline, then use this guide to get the letter side right.

What an ERAS letter of recommendation actually is

An ERAS letter of recommendation is a confidential evaluation written by a physician or faculty member who worked with you clinically, uploaded through the ERAS Letter of Recommendation Portal on your behalf. It is not something you write or edit. It is third-party evidence of how you perform under supervision.

Programmes read letters alongside your MSPE, personal statement, and experiences. A letter that describes specific patient care, teamwork, or clinical reasoning you demonstrated carries more weight than one that lists adjectives without examples. Reviewers use letters to confirm what your application claims about your readiness for residency.

How the ERAS letter portal and Letter ID work

Letters route through a system separate from MyERAS. When you add a letter entry in your application, the system generates a unique Letter ID for each writer. That ID is how the portal matches the uploaded file to the right request. Share the ID and upload instructions with the person writing for you. They log into the letter portal, upload the document, and complete the assignment steps for your application.

If a writer asks where to find the Letter ID, it lives on your side in MyERAS inside that letter entry, not in their email inbox unless you pasted it there. Send the ID in the same message as the deadline and a short reminder of how you worked together.

This separation matters for timing. Your application can be marked complete before all letters arrive, or letters can sit uploaded while your application is still in draft. Track both systems. A common mistake is assuming that submitting your application means every letter has landed. Check the letter portal status independently.

Letter types include standard LoRs, departmental letters where your school submits one composite document, and specialty-specific formats some programmes request. Emergency medicine applicants should also read our SLOE emergency medicine guide, since that specialty leans on a structured evaluation form rather than narrative letters alone. Verify what your specialty and school expect for your cycle rather than copying a classmate's list from a different field.

Upload status, "confirmed for upload," and assigning programmes

Portal status language can look cryptic the first time you see it. Phrases such as "confirmed for upload" generally mean the writer has successfully placed a file against that Letter ID. Exact labels can vary by cycle, so treat the wording in your live MyERAS view as authoritative and refresh the page after a writer says they finished.

Upload is not the same as every programme seeing the letter. After a letter is in the portal, confirm it is assigned to the programmes that should receive it under your current ERAS rules. Applicants often fix the upload and then forget assignment, or assign letters before the file exists and assume the job is done.

If a status stalls, ask the writer to confirm they used the correct Letter ID and cycle. Wrong-ID uploads are a classic late-season problem. Your school’s advising office can often help interpret portal messages faster than guessing from screenshots on forums.

Can you add an LoR after submitting ERAS?

Many cycles allow you to request or assign additional letters after you submit your application, within ERAS rules and programme timelines. That flexibility is useful when a late clerkship creates a stronger specialty letter, or when a writer finishes after your submit click.

Do not treat post-submit letters as a plan. Programmes may start reviewing files soon after applications open. A letter that arrives weeks later may miss early screens even if the portal still accepts it. Verify current AAMC guidance for your cycle, then decide whether a late letter is worth waiting for versus submitting with a complete, strong set now.

How many letters you need and who should write them

Most US residency applicants submit three to four letters. At least one or two should come from attendings in your chosen specialty who can speak to your clinical performance in that context. A letter from your home department chair or a research mentor can add depth, but specialty-specific clinical letters usually carry the most weight for programme reviewers.

Choose writers who know your work directly, not just your name from a brief rotation. An attending you worked with for four weeks on a busy service, where they observed your notes, presentations, and patient interactions, will write something more useful than a well-known name who saw you twice.

International medical graduates and students with non-traditional paths should still aim for the same specialty mix where possible. If your clinical exposure in the target specialty is limited, explain that honestly in your personal statement and lean on letters that describe transferable skills with concrete examples.

When to ask and what to give your writers

Ask during or shortly after a rotation where you performed well, not in the final weeks before applications open. Attendings and mentors receive dozens of requests each cycle. Early, organised requests get better letters because writers have time to reflect and draft.

When you ask, provide a brief packet: your CV or experiences list, your specialty choice, programmes you are targeting if relevant, and a clear deadline that accounts for portal upload time, not just your submission date. Mention specific projects or patients you worked on together so the writer has anchors for detail.

Many applicants also share a draft of their personal statement so the letter does not contradict the story the rest of the application tells. Consistency across documents helps reviewers build a coherent picture of who you are as an applicant.

Waiving access and school policies

Most ERAS applicants waive the right to read their letters. Waiving is standard practice because confidential letters are treated as more candid by reviewers. Confirm your medical school's policy on waivers and letter storage before you assign writers in MyERAS.

Some schools coordinate departmental letters centrally. Others leave letter strategy entirely to students. Ask your dean's office or career advising team how your institution handles MSPE release and whether any letters must come through a specific channel.

Specialty mix and letter strategy by field

Competitive specialties often expect multiple letters from faculty in that field. Primary care fields may accept a broader mix, including strong letters from adjacent specialties, if they describe relevant clinical skills. There is no universal formula.

Talk to a faculty mentor in your target specialty about what programme directors in that field typically expect. A surgery applicant's letter list looks different from a psychiatry applicant's, and guessing based on forum posts from another specialty leads to mismatches reviewers notice.

If you are applying in surgery, plan for surgeons who watched you on service or in the OR, not only research mentors. Our surgery residency guide covers how those letters sit beside personal statement and interview themes.

If you did an away rotation at a programme you are seriously considering, a letter from that rotation can matter disproportionately for that specific site. Weigh that against whether the same letter adds value across your broader list.

Geographic preferences and letter storytelling

ERAS geographic preferences tell programmes where you hope to train. Letters that casually contradict that story, for example praising only a distant home region while you signal elsewhere, can confuse reviewers. Align what writers emphasise with the regions and programme types you are actually pursuing.

You do not need every letter to mention geography. You do need the overall file to feel coherent when a reviewer reads preferences, experiences, and LoRs in one sitting.

Tracking uploads and avoiding last-minute gaps

Build a simple tracker with each writer's name, Letter ID, date you asked, date they confirmed, and upload status in the portal. Check it weekly once application season opens. One missing letter on deadline day creates stress that a five-minute weekly check prevents.

Set internal deadlines for writers at least two weeks before your planned submission date. Portal issues, faculty travel, and forgotten passwords happen. Buffer time is not optional when your application completeness depends on other people's schedules.

If a letter is late, follow up politely once, then escalate through your school's advising office if needed. Most faculty want to help but lose track of requests during busy clinical weeks.

Common ERAS letter mistakes

Waiting until the summer before fourth year to identify writers is the most common error. By then, the attendings who know you best may already be committed to other students' requests.

Another frequent mistake is asking people who cannot speak to clinical performance, such as a research PI with no patient-facing contact, to fill a slot that programmes expect to be clinical. Research letters help as supplements, not replacements for specialty clinical evaluation.

Submitting four nearly identical letters from the same department, all saying the same generic praise, wastes slots. Diversity of perspective matters. One letter from medicine, one from surgery, and two from your target specialty reads differently from four letters that all say "hardworking and pleasant."

Finally, do not assume your writer knows ERAS mechanics. Send clear portal instructions the first time you ask. Many faculty write excellent letters but upload to the wrong ID or wrong cycle without step-by-step guidance.

How letters fit the rest of your ERAS file

Letters should reinforce, not repeat, your medical student CV and personal statement. If your statement describes a commitment to underserved care, a letter that mentions your work in a community clinic adds evidence. If your CV lists research, a letter that describes your role on a project adds credibility a bullet point cannot.

Programmes read the full file as a package. Misalignment between what you claim and what your letters describe raises questions interviewers will probe. Before submission, read your own materials as if you were a reviewer looking for contradictions.

What to do after reading this

List three attendings who could write a specialty-specific letter based on rotations where you performed well. Ask the first one this week with a clear deadline and a brief CV attached. Then open the current ERAS letter portal instructions in MyERAS so you know exactly what to send each writer.

When your letters are on track, return to the ERAS timeline to align submission dates with MSPE release and interview season. Browse related Clinibound career guides on the blog.