Reference Check Questions: What to Ask and What You Can't

Most reference check templates are a list of twenty questions in no particular order. In practice a reference call has a shape: the person on the other end will confirm certain things immediately, get more careful as you go, and stop entirely at a line they have been told not to cross. Ask in the wrong order and you hit that line before you get the answers you actually needed.

This is the question set that works, the order that keeps a call moving, and the boundary that determines what a former employer will and won't say.

TL;DR

• A reference check is a structured conversation with someone who worked with your candidate. The useful question set is narrower than most templates suggest — roughly twelve questions, not twenty.
• Order matters more than count. Dates, title, and reporting relationship come first because they are the questions almost everyone answers. Judgment questions come last, because that is where a reference either opens up or closes down.
• Many employers restrict what their staff may disclose to dates and title. That is a company policy, not a law, and it is worth asking whether the person you have is authorized to say more.
• What is legally constrained: several states restrict asking about salary history, and questions touching protected characteristics are off limits everywhere. "Would you rehire?" is the highest-signal question that remains reliably askable.
• If you conduct reference checks through a third party for employment purposes, the FCRA may apply and the compliance requirements change. That distinction catches a lot of teams by surprise.

What a Reference Check Actually Tells You

A reference check is not a background check and it is not an employment verification, though the three get used interchangeably and often get bundled into one order.

An employment verification confirms facts: this person worked here, in this role, between these dates. A background check searches records — criminal, credit, motor vehicle, education. A reference check is the only one of the three that asks a human being for a judgment, which is what makes it useful and also what makes it unreliable if you ask badly.

The practical consequence: a reference check is the wrong instrument for confirming facts. If you need to know whether someone actually held the title they claim, verify it. Use the reference call for the things no record contains — how they worked, what they were actually responsible for, and whether the person who managed them would take them back.

The 12 Reference Check Questions Worth Asking

Ordered deliberately. The first four are near-universally answered and establish that you have the right person and the right relationship. The middle group gets at scope, which is where resume inflation usually lives. The last group asks for judgment, and it goes last because a reference who has answered eleven questions comfortably is far more likely to answer the twelfth.

1. How do you know the candidate, and what was your working relationship? Establishes whether this is a manager, a peer, or someone who barely overlapped with them.
2. What were their employment dates, as you remember them? Cross-check against the application. Discrepancies here are usually memory, occasionally not.
3. What was their title, and did it change while they were there? Promotions and title inflation both show up in the gap between what the reference says and what the resume claims.
4. Who did they report to, and did anyone report to them? The fastest way to size actual scope.
5. What were they responsible for day to day? Ask for the routine, not the highlights. Most candidates describe their best project; references describe the job.
6. What did they own end to end, versus contribute to? This single distinction separates a resume line that means something from one that doesn't.
7. How did they handle a project that went badly? Behavioral, specific, and hard to answer with a platitude.
8. How did they work with people who disagreed with them? More revealing than asking about teamwork in the abstract, which invites a generic answer.
9. What kind of environment do they do their best work in? Frames the answer as fit rather than deficiency, so references answer it honestly.
10. Where would they need support in a role like the one we're hiring for? The version of "what are their weaknesses" that people actually answer. Give the reference the role context first.
11. Would you hire or work with them again? The highest-signal question in the set. A pause before the answer carries information.
12. Is there anything I haven't asked that would be useful for me to know? Open-ended closer. This is where the thing the reference was waiting to be asked about comes out, if it exists.

Twelve questions runs fifteen to twenty minutes with a talkative reference. If you have to cut, keep 1, 4, 6, 10, and 11 — relationship, scope, ownership, support needs, and rehire.

Questions by Scenario

The core set holds, but weight shifts depending on who you are talking to and what you are hiring for.

For volume hiring, three questions and a rehire answer is a complete check. Running a twelve-question script across two hundred hourly hires produces worse data, not better, because the interviews get rushed and the answers get thinner.

What a Reference Can and Can't Tell You

Two different constraints get conflated here, and the difference matters.

Company policy. Many employers instruct HR to confirm only dates and title. This is a liability-avoidance posture, not a legal requirement, and it varies enormously by company size — small employers will often talk freely where a large one won't. When you hit this wall, it is worth asking directly whether the person you're speaking with is authorized to say more, or whether someone else is. A former direct manager reached on their personal line frequently answers what corporate HR would not.

Actual legal limits. Questions touching protected characteristics — age, disability, national origin, religion, pregnancy, and so on — are off limits regardless of who you ask. Separately, a growing number of states restrict asking about salary history, including in reference calls, so it is a question to drop from your script rather than manage state by state.

Many states also have service-letter or reference-immunity statutes that give employers some protection for good-faith factual statements. That protection is why some employers will discuss performance and others still won't: the legal exposure is lower than most companies behave as though it is, but the policy has already been set.

The FCRA line. If you use a third party to conduct reference checks for employment purposes, the resulting report may be a consumer report under the Fair Credit Reporting Act. That brings disclosure, authorization, and adverse-action obligations that do not apply when your own team makes the calls. Teams that move reference checking to a vendor without adjusting their process are the ones who get caught out. Our FCRA permissible purpose checklist covers what to ask a vendor before signing.

Questions That Waste the Call

• "What are their greatest strengths and weaknesses?" Produces a rehearsed answer in both directions. Question 10 gets at the same thing with role context attached, which is what makes it answerable.
• "Rate them 1 to 10." References either inflate or refuse. The number carries no information without the reasoning, and if you have the reasoning you don't need the number.
• "Why did they leave?" Almost always answered with the neutral version. Ask the rehire question instead — it surfaces the same information more reliably.
• "Were they ever disciplined?" Most policies forbid answering this outright, and asking it early can make a cooperative reference defensive for the rest of the call.
• Anything you can verify from a record. Salary, dates, and title belong in an employment verification, not a reference call. Spending the call on facts wastes the one instrument that can give you judgment.

Phone, Email, or Form: How to Actually Run It

Phone produces the best data and the worst completion rate. Email produces the reverse. Most teams end up doing both badly — emailing first, waiting a week, then calling.

Running all three channels at once is what actually closes the gap, and it is worth being specific about why: a reference who ignores voicemail will often reply to a written form at 9pm, and one who never opens the email answers a call on the second attempt. You do not know in advance which kind of person you have.

A few things that measurably help regardless of channel:

• Name the role. A reference answering "would they be good at this job" gives a sharper answer than one answering "are they good".
• Say how long it will take, and be right. Fifteen minutes offered and taken is fine; fifteen offered and thirty taken is why people stop answering.
• Send the questions in advance for senior hires. It feels like it invites rehearsal. In practice it produces specifics rather than generalities, because the reference has time to remember actual examples.
• Ask the closer. Question 12 has a meaningfully higher hit rate than its position in the list suggests.

A Reference Check Form You Can Use

The downloadable version below mirrors the twelve questions above with space for answers, a header block for candidate and reference details, and a disposition field at the bottom — reached, declined, unreachable, or policy-limited to dates and title.

That last field is the one most forms omit and most hiring files need. "We could not reach this reference, and here is the documented attempt log" is a defensible record. A blank line is not.

Download the reference check form (.docx)

What Superunit Sees Across Reference Outreach

Superunit's AI agents contact each reference by phone, email, and text at the same time rather than escalating one channel at a time, and keep working the contact until someone responds or the channel is genuinely exhausted. On reference checks, that produces an 85% completion rate with a median turnaround of three hours.

The more useful number is which channel actually closes. All three run in parallel, and the phone call completes the large majority of checks. Email and text are what reach a reference who is screening an unknown number; the substance almost always arrives by voice.

That has a direct consequence for the question list above. If the phone call is where the reference check actually happens, then the ordering of the questions is not a stylistic preference — it is the thing that determines whether the call produces judgment or just confirms dates. A survey-based tool never faces that problem, because it never gets the nuance either.

Two patterns show up consistently across that outreach.

The first is that the early questions do most of the work in keeping a call alive. References who answer the relationship and dates questions comfortably answer the judgment questions at a much higher rate than references asked for judgment in the opening minute. The twelve-question order above is built around that.

The second is that multi-attempt across different times of day changes who you reach, not just how often. A reference unreachable at 10am on a Tuesday is frequently reachable at 4pm on a Thursday, and the person who picks up the second time is often more forthcoming than the one who answered while distracted. Running attempts across shifts is not a volume trick; it changes the composition of who ends up in your sample.

If you are comparing tooling rather than building this yourself, our roundup of the best reference check automation platforms covers how the vendor field splits between survey-based and conversation-based approaches.

What Superunit Records on Every Reference Attempt

The answers are only half of what a hiring file needs. The other half is what happened on the references you never reached, and that is the part most teams cannot produce three months later when someone asks.

Every attempt Superunit makes is logged with the same fields the form above uses: date, time, channel, who answered, and a terminal disposition — completed, policy-limited, declined, or unreachable after documented attempts. Calls are recorded and transcribed, so the answer to question 11 is a retrievable artifact rather than a coordinator's recollection.

That matters in two specific moments. When a hiring decision gets challenged, "we could not reach this reference" is a weak position and "here is the attempt log across four channels and eleven days" is a defensible one. And when a reference gives a different answer than the candidate did, the transcript is what separates a documented discrepancy from a disputed memory.

Frequently Asked Questions

How many reference checks should I run per candidate? Two to three for most roles, weighted toward former managers over peers. A fourth rarely changes a decision. For senior hires, one former direct report is worth more than a third peer.

Can a former employer legally say something negative? Yes, in most states, provided it is factual and offered in good faith. Many states have reference-immunity statutes that protect exactly this. Company policy is what usually prevents it, not the law.

Is "would you rehire?" allowed? Yes, and it is the single highest-signal question that reliably gets answered. Even a policy-limited HR contact will often answer it when they will not discuss performance.

How long does a reference check take? A single call runs fifteen to twenty minutes. The elapsed time from request to completed check is the real number, and it is usually days rather than minutes, because reaching the reference is the hard part.

Do reference checks fall under the FCRA? They can. If a third party conducts them for employment purposes and produces a report, it may be a consumer report, which triggers disclosure, authorization, and adverse-action requirements. Checks your own team runs internally generally do not.

Should I check references before or after an offer? Before, in almost every case. Checking after an offer turns any negative finding into a rescission, which is a worse position legally and commercially than not having extended it.

What if a reference won't go beyond dates and title? Ask whether someone else at the company is authorized to speak to performance, and ask the candidate for an additional reference who managed them directly. A policy-limited response is information about the employer, not about the candidate.

Ask in the Order That Keeps People Talking

The question list matters less than most templates imply. What determines whether a reference check produces anything useful is whether the person stays on the phone long enough to answer the questions that require thought — and that is a function of what you asked first.

Start with what they can answer without hesitating. Save judgment for last. And treat the unreachable reference as a documented outcome rather than a blank in the file.

If chasing references is consuming your recruiting coordinators, see how Superunit handles reference outreach.