What to Ask a Potential PhD Supervisor (2026)

Most advice on evaluating a PhD supervisor focuses on the wrong half of the relationship: how to impress them, how to answer their questions well, how to seem like a good fit. A supervisor is who you'll report to for four to six years, longer than most jobs last, and the choice deserves the same due diligence you'd put into any other multi-year commitment. The questions below are organized around what actually determines whether a supervision relationship works, not a generic list to read off a notes app.

Reframe the meeting before you walk in

Treat any conversation with a potential supervisor as mutual evaluation, not a one-way interview where they're deciding and you're just hoping. You're choosing who directs a significant chunk of your working life, and a supervisor who's worth working for expects genuine, specific questions back, not passive nodding. Coming in with nothing to ask is itself a small signal, that you haven't thought seriously about what you're committing to.

Supervision style and meeting frequency

This is the single most common source of PhD friction later, a mismatch between how much guidance a student needs and how much a supervisor actually provides, so ask about it directly rather than assuming.

• How often do you typically meet with students, and how structured are those meetings?
• What's a reasonable turnaround time for feedback on a draft, and how detailed is it usually?
• Do you prefer more independence early on, or a closer working relationship at the start?
• How do you usually handle it when a project hits a real roadblock?

There's no universally correct answer here, some students thrive with weekly structured check-ins, others do better with more autonomy and less oversight. What matters is whether the supervisor's actual style matches what you know about how you work, not whether it matches some abstract ideal.

Funding: the questions people skip because they feel awkward

These questions are standard practice, not an imposition, and a well-organized lab has clear answers ready.

• What does the funding actually cover, tuition, stipend, health insurance, and for how many years?
• Is every year of funding guaranteed, or does a later year assume a fellowship or teaching role you'd need to secure?
• Is there support for conference travel or publication costs, and is that a separate budget from the stipend?
• What happens if the project runs longer than the funded years cover?
• If the funding comes from your specific grant, what happens to a student's funding if that grant isn't renewed?

That last question is the one most applicants never ask, and it matters most. Research assistantship funding tied to a specific grant is genuinely more exposed to that grant's renewal cycle than a departmental teaching line is. For the broader difference between funding types and who actually controls each one, see our breakdown of RA, TA, and GA funding, since the answer changes what's actually reasonable to ask this specific supervisor for.

Authorship and publication norms

This shapes your actual career output, and it's a normal, expected question, not a presumptuous one.

• How is authorship order typically decided, by contribution, by convention, or case by case?
• Are students generally first author on their own work?
• What's your view on students publishing independently, without you as a co-author, if the work genuinely stands alone?
• Which venues does the lab typically target, and are preprints part of the normal workflow?

Questions that only current or former students can answer honestly

A supervisor's own answers to the questions above are useful, but incomplete, since even a well-meaning supervisor's self-assessment of their own meeting frequency or feedback speed isn't always how students in the lab actually experience it. Talking to students changes what you learn:

• How much one-on-one time do you actually get with your advisor, in practice, not on paper?
• Do students in this lab typically finish on the expected timeline, or run long?
• Is there real funding for conference travel, and do students actually get sent?
• What do people who've left this lab go on to do?
• Is the lab culture collaborative, or more competitive between students?

Try to reach at least two students, and if you can find a former student who's already moved on, prioritize that conversation. A current student, still dependent on the relationship, may understandably soften a criticism they'd state plainly once they've left, not out of dishonesty, but because there's genuinely more at stake for them in the answer.

How to actually reach current students if you don't already have a contact

This step gets skipped mostly because it feels harder than it is. Lab and department websites usually list current graduate students by name, often with email addresses, which is enough to send a short, direct message. Something close to: "I'm considering applying to work with Professor [Name] and would really value 15 minutes of your honest perspective on the lab, at your convenience." Most students remember being in your position and are willing to talk, especially if you make it clear you're asking for their genuine view, not a sales pitch. If the lab is active on academic social platforms or the professor's own page links to student pages, that's often a faster way to find names than searching the department directory cold.

Questions about the specific project you'd work on

• Who defines the scope of the project, you, the supervisor, or the terms of the funding grant?
• How much room is there to shift direction once you're actually working on it?
• What resources, equipment, data access, computing, does the project actually depend on, and are they secured?

How to actually ask, without it feeling like an interrogation

Spread these across the conversation rather than firing off a checklist, and lead with genuine curiosity rather than a script. Three to five well-chosen questions, asked naturally as the conversation opens up, land better than fifteen read off a list. If it's an early exploratory conversation rather than a formal interview, funding and authorship questions can wait for a second conversation or the interview stage itself, where they're expected as a matter of course. See our guide to the interview itself for how the format typically works and what else gets asked in the room.

Write the answers down while they're fresh

If you're talking to several potential supervisors across a real search, and most serious applicants are, the answers blur together faster than expected. A supervisor from three weeks ago who mentioned a specific concern about funding renewal is easy to confuse with a different one who said something similar in passing. A short note after each conversation, three or four lines on meeting style, funding specifics, and your honest gut reaction, turns into the actual decision-making record once you're comparing multiple options later, rather than relying on memory that's already mixing details from different labs together.

Reading the answers, not just collecting them

A vague or evasive answer to a fair, professionally phrased question is itself useful information. A supervisor who gets defensive about a reasonable funding-contingency question, or who can't give you any specifics on meeting frequency, is telling you something about what the relationship will actually be like, regardless of how warmly the rest of the conversation goes. Weigh what you hear here as seriously as you'd weigh the research fit itself, since a brilliant research match with a genuinely mismatched supervision style is a common, avoidable way PhDs go badly.

Green flags worth noticing, not just red ones

It's easy to focus entirely on spotting problems, but the positive signals matter just as much and are just as concrete. A supervisor who answers the funding-contingency question with a specific, already-thought-through plan, rather than being caught off guard by it, is showing you they've dealt with this before and take it seriously. A student who volunteers detail without being pressed, mentioning both the good and the frustrating parts of the lab unprompted, is generally more trustworthy than one who gives uniformly glowing answers to every question. And a supervisor who asks you thoughtful questions back, about how you like to work, not just about your CV, is usually signaling they think about supervision as a real relationship rather than a pipeline of interchangeable students.

Getting to this conversation in the first place

None of these questions matter until you're actually talking to a real, actively publishing professor, which is the part that consumes most applicants' time before it ever gets to this stage. GradScoutFunding finds professors filtered by field and country, confirms they're actively publishing, and drafts a personalized first email grounded in a real recent paper for you to review and send, so you spend your time on the conversations above instead of on the search that gets you there. Your first 2 credits are free, no card required.

Common questions