Reference check questions

A ten-minute call with a former supervisor can confirm what you saw in the interview, or reveal what you missed.

In shortReference checks are conversations with people who have worked with a job candidate, usually former supervisors, to verify experience and learn how the candidate performs. Good reference check questions are specific and job-related, such as “What were their main responsibilities?”, “How did they handle a busy shift?” and “Would you rehire them?” Ask the candidate for permission and references, avoid questions about protected characteristics, and follow federal and state rules on salary history and background checks.

Why reference checks matter

Reference checks are one step in a fair hiring process, alongside a clear job description and structured interviews using behavioral interview questions.

How to run a reference check: step by step

  1. Get consent. Tell candidates you check references and ask for two or three, ideally including a direct supervisor.
  2. Prepare questions. Use the same core questions for every candidate for the same role.
  3. Introduce yourself and the role. Explain the job so the reference can relate their answers to it.
  4. Confirm the relationship. How long and in what capacity did they work together?
  5. Ask open-ended questions. Then follow up: “Can you give me an example?”
  6. Listen for hesitation. What is not said can matter.
  7. Take notes. Record facts and examples, not impressions about the reference.
  8. Thank them and keep it confidential. Do not share what one reference said with the candidate or others beyond the hiring team.

30 reference check questions

Relationship and role
# Question
1 How do you know the candidate, and for how long did you work together?
2 What was their job title and what were their main responsibilities?
3 What were their dates of employment?
4 Did their role change over time? Were they promoted?
Performance and skills
# Question
5 What were their biggest strengths?
6 What is one area where they could improve?
7 How would you rate the quality of their work, and why?
8 Can you describe a project or shift where they performed especially well?
9 How did they handle a mistake?
10 How quickly did they learn new tasks or systems?
11 How did they handle busy or stressful periods?
12 How well did they follow procedures, including safety procedures?
Reliability and work habits
# Question
13 How reliable were they in showing up on time for scheduled shifts?
14 How did they handle schedule changes or requests to cover a shift?
15 How well did they manage their time and priorities?
16 Did they need close supervision, or work well independently?
Teamwork and communication
# Question
17 How did they get along with coworkers?
18 How did they handle disagreements?
19 How did they communicate with customers or patients?
20 How did they respond to feedback?
21 Did they help train or support others?
Fit for the new role
# Question
22 This role involves [key duty]. How do you think they would do?
23 What kind of manager or environment brings out their best work?
24 What advice would you give me to help them succeed?
25 Is there any training they would benefit from?
Closing questions
# Question
26 Why did they leave?
27 Would you rehire them? Why or why not?
28 Would you recommend them for this role?
29 Is there anything else I should know?
30 Is there someone else I should speak with about their work?

Questions to avoid

Avoid these topics
Avoid asking about Why
Age, race, national origin, religion, sex, sexual orientation, gender identity Protected characteristics under federal and many state laws
Health, disability, medical leave, workers’ compensation claims Disability and leave protections
Pregnancy or family plans Sex and pregnancy discrimination protections
Salary history Banned for employers in many states and cities
Arrests or criminal history Covered by fair chance laws and separate background check rules
Union activity or complaints about working conditions Protected under the National Labor Relations Act
Personal life outside work Not job-related and may reveal protected information

If a reference volunteers protected information, do not note it or use it, and steer the conversation back to job performance.

Sample reference call script

  1. “Hi, this is [Name] from [Company]. [Candidate] applied for a [role] position and listed you as a reference. Do you have about ten minutes?”
  2. “First, could you tell me how you worked together and for how long?”
  3. “The role involves [two or three key duties]. How did they handle similar work?”
  4. “Can you give me an example of a time they did especially well?”
  5. “Where do you think they could improve?”
  6. “How reliable were they with attendance and schedule changes?”
  7. “Would you rehire them?”
  8. “Is there anything else you think I should know? Thank you for your time.”

Legal points to know

Red flags and green flags

What to listen for
Red flags Green flags
Reluctance to answer or very short answers Specific, detailed examples
Dates or titles that do not match the resume Facts that match the interview
“Not eligible for rehire” without explanation “I would hire them again tomorrow”
References are only friends or family A former direct supervisor willing to talk
Repeated mention of reliability problems Praise for consistency and teamwork

One lukewarm reference is not always disqualifying. Look at the whole picture and weigh it against your interviews.

What if a reference will only confirm dates?

Many companies limit references to dates of employment and job title. When that happens:

Reference checks for hourly roles

For high-volume hourly hiring, keep reference checks short: five to seven questions focused on reliability, teamwork, customer service and rehire eligibility. A quick text or email to schedule a five-minute call often gets a faster response than voicemail. Speed matters, so check references in parallel with other steps. Once hired, a structured onboarding plan and clear schedules through scheduling software help new hires start strong.

Documenting reference checks

Keep brief, factual notes of who you spoke with, when and what they said about job-related topics. Store notes securely with other hiring records and keep them for the period required by law; federal rules generally require employers to keep hiring records for at least one year, and some states require longer. Our personnel file guide covers record-keeping.

Frequently asked questions

How many references should I check?

Two or three is common, ideally including at least one former direct supervisor.

What questions should you ask a reference?

Questions about the candidate’s role, responsibilities, strengths, areas for improvement, reliability, teamwork, how they handle pressure and feedback, why they left and whether the reference would rehire them.

Is it legal to call references without permission?

It is generally best practice to get the candidate’s permission and ask them for references. If you use a third-party service, the Fair Credit Reporting Act requires written disclosure and authorization.

Can a former employer say bad things about an employee?

Employers can generally share truthful, job-related information, and some states protect good-faith references. Many employers limit references to dates and titles to reduce legal risk.

Can I ask a reference about salary?

In many states and cities, salary history questions are banned for employers. Avoid them unless you have confirmed they are lawful where you hire.

When should reference checks happen?

Usually after final interviews and before or alongside the job offer, often as a contingency in the offer letter.

Should I check references before or after interviews?

Usually after final interviews for the top one or two candidates, so you only contact references for serious contenders and can ask about specific points raised in interviews.

Where to go next

Useful next steps

Signed copies in the employee file

Employees can fill in and sign forms like this in the EZTime app, and the signed copy lands in their digital employee file.

Disclaimer: This guide is general information only and is not legal advice. Anti-discrimination, salary history, background check and record-keeping rules vary by state and locality and change over time. Consult a qualified employment attorney for your situation.