- 20 questions
Phone Interview Questions to Ask Candidates
A phone screen has one job: decide in 20-30 minutes whether this candidate should take an hour of the hiring manager’s time. Ask about the must-haves for the role, availability, compensation range and why they are looking, and one or two questions that test the core skill. Everything else belongs in the next round.
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Most phone screens are either a friendly chat that filters nobody or a mini-interview that runs 50 minutes and still misses the basics.
The 20 questions below are built for the actual purpose of the call: confirming the must-haves, surfacing deal-breakers early, and collecting just enough evidence to decide who goes to the next round. Each one says what it tells you and what should stop the process there.
01
Before you call: what a phone screen should and should not do
Keep the screen to 20-30 minutes and structure it in four blocks. Ask the same core questions to every candidate for the role, in the same order, and write the answers as you go: you will be comparing ten of these calls, and memory does not survive ten calls.
Opening and role summary
Must-haves and logistics
Motivation and fit
One core skill
Their questions and next steps
02
Must-haves and logistics
01Walk me through your understanding of this role. What do you think the job actually involves day to day?
- What a strong answer shows
- They read the posting and can describe the core of the work, and they ask about what is unclear.
- Red flag
- They have applied to forty jobs this week and this is one of them. Not fatal, but everything after it is less reliable.
02The role is [on-site / hybrid, X days / remote] in [location]. Does that work for you, realistically?
- What a strong answer shows
- A clear yes, or an honest constraint you can decide on now.
- Red flag
- A vague yes followed by «but we could discuss that later». Discuss it now.
03What is your current notice period, and when could you realistically start?
- What a strong answer shows
- A specific date or range, plus anything already booked (holidays, a course) that affects it.
- Red flag
- «Immediately» from someone currently employed, with no explanation.
04What compensation range are you looking for? Our range for this role is [range].
- What a strong answer shows
- A number or a range, and a reasonable reaction to yours. Sharing yours first makes the answer honest.
- Red flag
- They refuse to give any number, or their floor is above your ceiling and they say it does not matter.
05Are you legally authorized to work in [country], and will you need sponsorship now or in the future?
- What a strong answer shows
- A direct answer. Ask it the same way to everyone.
- Red flag
- Anything you cannot act on: if the answer is a problem, say so now rather than in round three.
06Are you interviewing elsewhere, and what stage are those processes at?
- What a strong answer shows
- Honest information you can use to plan the timeline. Candidates with offers pending deserve a faster process or a clear no.
- Red flag
- No red flag here; it is a planning question. Just write the answer down.
03
Motivation and why now
07Why are you looking to leave your current role, or why did you leave the last one?
- What a strong answer shows
- A specific, non-defensive reason: growth, a change in the company, a relocation, a manager change.
- Red flag
- A long complaint about the current employer, or a reason that this job would not fix either.
08What made you apply to this role specifically?
- What a strong answer shows
- Something about the work, the product or the team that they could only know from looking.
- Red flag
- «It matched my skills» — a generic answer that would fit any posting.
09What would you need to see in the next couple of conversations to decide this is the right move?
- What a strong answer shows
- Real criteria: the manager, the team, the scope, the roadmap. It tells you what to show them.
- Red flag
- «Nothing, I’m very interested» — enthusiasm without criteria usually means they have not thought about it.
10Which part of the job description are you least sure about, or least excited by?
- What a strong answer shows
- An honest answer. Everyone has one, and hearing it now avoids a surprise resignation at month four.
- Red flag
- «I’m excited about all of it.»
11What did your last performance review say you should work on?
- What a strong answer shows
- A real development area, stated plainly, with what they did about it.
- Red flag
- They never had a review, or the answer is a disguised strength.
04
One core skill (pick the one that matters most for the role)
12Tell me about a piece of work from the last year you are proud of. What was your part in it specifically?
- What a strong answer shows
- First-person actions, a result they can describe, and credit given to others where due.
- Red flag
- Everything is «we» and you cannot tell what they personally did.
13Describe a time you had to [core task of the role: close a deal / ship a feature / handle an escalation / run a process] under pressure.
- What a strong answer shows
- A specific situation that matches the level of the role, with what they did and how it ended.
- Red flag
- The example is from a very different level, or it is hypothetical.
14What tools or systems did you use daily in your last role, and which ones would you rate yourself strong in?
- What a strong answer shows
- Concrete names and an honest self-rating, including something they are not strong in.
- Red flag
- Every tool on the posting is a strength.
15How do you usually work with [the function this role interacts with most: sales, engineering, customers]?
- What a strong answer shows
- A description of an actual working relationship, with a friction they solved.
- Red flag
- Generic praise for collaboration, no example.
05
Closing the call
16What questions do you have for me about the role, the team or the process?
- What a strong answer shows
- One or two questions about the work or the people. Strong candidates ask about the manager, the team’s biggest problem, or how success is measured.
- Red flag
- No questions at all, or only questions about time off and perks.
17Is there anything about your background that we have not covered and that you think is relevant?
- What a strong answer shows
- Sometimes the most useful thing on the call: a relevant project, a gap explained, a certification in progress.
- Red flag
- None. It is an open door, not a test.
18If we move forward, the next step is [describe]. Does that timeline work for you?
- What a strong answer shows
- Confirmation, or a constraint you can plan around.
- Red flag
- None. But do actually tell them when they will hear back, and then do it.
19On a scale of one to ten, how interested are you in this role after our conversation, and what would make it a ten?
- What a strong answer shows
- An honest number and a specific gap you can address in the next round.
- Red flag
- A ten with no reasons. Or a five with no reasons.
20Is there anyone you would prefer we did not contact for references at this stage?
- What a strong answer shows
- A normal answer (current employer). It signals you will be careful, which candidates remember.
- Red flag
- None.
06
How to decide after the call
Score the screen the same way for every candidate, right after hanging up. The decision is binary — advance or not — but the notes are what the hiring manager will read, so write the evidence, not the verdict.
Advance
Advance with a flag
Hold
Decline
FAQ
Frequently asked questions
What questions should I ask in a phone screen interview?
Confirm the must-haves first (location, start date, compensation range, work authorization), then motivation (why leave, why this role, why now), then one behavioral question tied to the most important skill for the role. Twenty to thirty minutes is enough; the deeper questions belong in the next round.
How long should a phone interview be?
Twenty to thirty minutes. Longer screens do not produce better decisions; they produce tired recruiters and candidates who feel they have already done the interview. If you need more than 30 minutes, the screen is trying to do the next round’s job.
Should I share the salary range on a phone screen?
Yes, and share it before asking for theirs. It makes their answer honest, it saves everyone a wasted second round, and in a growing number of US states and in the EU you are required to disclose it anyway.
What are red flags in a phone screen?
They cannot describe what the job involves; the compensation or location answer is evasive; the reason for leaving is a complaint this job would not fix; every example is «we» with no personal contribution; and they have no questions at all about the role or the team.
Should the recruiter or the hiring manager do the phone screen?
Usually the recruiter, because the goal is filtering on must-haves and motivation, not assessing depth. The exception is a very senior or very technical role, where a 20-minute call with the hiring manager saves more time than it costs. Either way, record the answers so the next interviewer does not repeat the same questions.
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