Residency interview thank-you notes and post-interview contact: 2027 ERAS season

The interview ends, the adrenaline fades, and the same question arrives: do I send a thank-you note, and what else am I allowed to say before rank lists close? In the 2027 ERAS season the answer sits in NRMP's two Codes of Conduct, and it is more permissive, and more specific, than most hallway advice.

Reviewed October 19, 2026 against NRMP's Match Code of Conduct for Applicants and NRMP's Match Code of Conduct for Programs. It is editorial preparation, not legal advice; the Codes and your Match Participation Agreement control.

What the NRMP Codes actually say

The applicant Code gives you two clear permissions and one clear limit. You may freely express your interest in a program. You may request and exchange clarifying information with programs after the interview. And you must not ask the program director, or anyone on the recruitment team, to disclose the program's ranking preferences or intentions, and must not engage in post-interview communication whose purpose is to influence or find out how the program will rank you.

The program Code mirrors this from the other side. Programs may exchange clarifying information with you after the interview, but they must not solicit or require post-interview communication in order to influence your ranking preferences, and they must not promote misleading communication about their own ranking intentions. A program that implies you must keep in touch to be ranked well is out of step with its own Code.

So should you send a thank-you note?

If you want to, yes: a short note to the program director or coordinator is ordinary professional courtesy, and some applicants send one to a resident host as well. Keep it brief, name something specific from the day, and send it once. If you do not send one, nothing in the Rules requires it, and many programs say plainly that notes do not enter their ranking discussions. The realistic reading: a good note can reinforce a good impression, but it has never rescued a weak interview, and its absence has never sunk a strong one.

What good post-interview contact looks like

1. One short thank-you: A few sentences, one specific detail from your conversation, no attachments and no requests.
2. Genuine clarifying questions: If something material was left unclear, such as a rotation structure or a start-date requirement, asking afterwards is exactly what the Code permits. Our new guide on checking your confidence in a program suggests treating unanswered doubts as questions still to ask.
3. Honest interest, stated once: If a program is genuinely your first choice, you may say so. Say it because it is true, once, without asking anything back. Stating the same to five programs is the kind of move that travels.

What to avoid

Do not ask how the program intends to rank you, and do not fish for it indirectly. Do not send weekly updates with nothing new in them, do not copy one note across every program, and do not treat a coordinator's courtesy reply as a signal about your rank position. Post-interview communication is where the waitlist season and the ranking season meet, and the discipline that helps in one helps in the other: confirm what is confirmed, ignore what is not.

While you wait for February, the useful work is comparative, not persuasive. Our guide to how many interviews it takes to match sets your season against NRMP's 2026 rank-list data, and the new self-assessment guides on housing and cost of living and proximity to family help turn interview-day impressions into a ranking you can defend.

If you want structured practice before your next interview

A peer, advisor or faculty mock interview may be enough. If you want paid practice, compare mock-interview packages and terms; practice does not guarantee an invitation, a rank position or a match.

Sources: NRMP Match Code of Conduct for Applicants (expressing interest and post-interview communication limits) and NRMP Match Code of Conduct for Programs (limits on soliciting post-interview communication), both reviewed October 19, 2026. The Codes and your Match Participation Agreement control your own conduct.