What Is a Reference Check?

A reference check helps an employer understand how a candidate performed at work by asking people who have observed that work directly. It is usually conducted after interviews and before a final hiring decision, and it should focus on skills and behaviors that matter for the role. References can provide examples of how someone collaborated, handled responsibilities, or responded to challenges, but their comments are only one part of the evidence available to a hiring team. A reference may have limited knowledge of the candidate or may be constrained by their former employer’s policy, so a brief response is not automatically a negative signal. Used consistently alongside interviews and other assessments, reference checks help employers assess whether a candidate’s experience is relevant to the job.

How Reference Checks Work

A reference check is a structured conversation or questionnaire used to learn about an applicant’s past performance and how it relates to a particular role. Employers may speak with supervisors, colleagues, team leads, or other people who worked closely with the candidate. The OPM’s reference-checking guidance describes reference checking as a way to verify past performance and assess a candidate’s suitability for a job.

The check may take place by phone, email, or a standardized online form. Employers typically contact the references a candidate provides after the interview stage and before deciding whom to hire. Questions should connect to the job rather than invite gossip or broad personal opinions. For a project manager, for example, an employer might ask about planning, stakeholder communication, and managing competing deadlines. For a customer-facing role, questions could explore dependability and how the candidate handled difficult interactions.

How Reference Checks Differ from Other Screening

A reference check is different from a background check. A reference check gathers feedback from people familiar with a candidate’s work, so it is usually qualitative and focused on performance, collaboration, and work habits. A background check may involve verifying records such as identity, employment history, or education. Its scope depends on the screening being conducted.

Employment verification is narrower than a reference check. It typically confirms basic facts such as job title and dates of employment without assessing how well someone performed. A reference conversation can provide context about what the candidate did and how they did it. Employers may use one or more of these steps depending on the role and their hiring process.

Why Employers Conduct Reference Checks

Each part of a hiring process offers a different kind of information. A résumé summarizes experience, an interview shows how a candidate communicates, and a work sample can demonstrate technical ability. A reference can add observations from someone who saw the candidate work in a real setting. That perspective may help an employer understand how the candidate applied their skills and worked with others.

For example, a candidate may say they led a cross-functional project. A reference conversation can explore what that leadership involved, such as setting expectations or keeping colleagues informed. The employer can then compare those observations with the responsibilities of the open role instead of treating a broad claim as sufficient evidence on its own.

References have limits. A reference may have seen only part of the candidate’s work, may use different standards, or may have personal bias. Some former employers confirm only dates and job titles because their policies restrict what supervisors can say. A sparse or guarded response does not by itself show that the candidate performed poorly. Employers should weigh it alongside the rest of the selection evidence.

Who Should Provide a Reference?

The most useful references are people who know the candidate’s work well and can speak to abilities relevant to the position. A former manager may be able to discuss performance and accountability, but a manager is not the only valuable source. Depending on the job, a reference could be a team lead, a close colleague, a direct report, a client, or a project partner. For an early-career candidate, a professor or internship supervisor may be able to describe relevant work and skills.

Candidates should ask permission before naming someone as a reference and confirm that the person’s contact details are current. It also helps to explain the kind of role being pursued and remind the reference of relevant projects or accomplishments. Advance notice gives the person an opportunity to prepare specific examples and helps avoid an unexpected request.

What Should Employers Ask References?

Questions are most useful when they relate to the job and are asked consistently across candidates for comparable roles. Open-ended prompts can encourage detail, while follow-up questions can clarify general praise or concerns. Employers might ask:

1. What was your working relationship with the candidate?
2. What were their main responsibilities?
3. What strengths did they bring to the role?
4. Can you describe a time they handled a difficult assignment?
5. How did they work with colleagues or stakeholders?
6. How did they respond to feedback or changing priorities?
7. What work environment helped them do their best work?
8. What should a new manager know to support their success?

Questions should reflect documented job requirements. If collaboration is important, ask for examples of how the candidate worked with others. If the role requires independent judgment, ask about decision-making and follow-through. Avoid prompts that could draw out personal information unrelated to the work.

How to Conduct a Fair and Useful Reference Check

A reliable process begins with the role. Before contacting references, employers should identify the job’s essential responsibilities and decide what they need to learn. That preparation makes it easier to ask relevant questions and interpret answers consistently.

Use a Consistent Process

Prepare a standard set of core questions for candidates being considered for comparable roles. Follow-up questions can vary when an answer needs clarification, but a shared baseline makes responses easier to compare. It also reduces the risk that one memorable comment will outweigh the rest of the available information.

Ask for Specific Examples

General praise such as “they were great” offers little detail on its own. Ask what the candidate did and what the circumstances were. Then explore how the candidate communicated or what resulted. Specific examples make it easier to judge whether the reference’s observations apply to the job.

Record Job-Related Information

Keep notes factual and tied to the questions asked. Record how the reference knows the candidate and distinguish direct observations from assumptions. If a concern arises, consider whether it is specific and relevant before weighing it against other information. When a discrepancy matters to the decision, the employer may give the candidate an opportunity to explain it.

Limit Access to Reference Information

Reference checks involve personal employment information. Access to notes and responses should be limited to people who need them for the hiring decision. When a third party handles screening, the process may involve additional requirements that depend on the circumstances and location.

Common Reference-Check Mistakes

A rushed or inconsistent check can produce information that is difficult to use fairly. Common mistakes include contacting references before the candidate expects it, asking each applicant unrelated questions, treating one person’s opinion as conclusive, or seeking information that has no bearing on job performance. The person conducting the check should understand the role and ask follow-up questions when a response is too vague to assess.

Candidates can also make the process less effective by listing references without checking with them first. A reference who is surprised by the request may be unavailable or unable to recall useful examples. Giving references advance notice helps them prepare and makes a detailed response more likely.

Using Reference Checks Alongside Other Hiring Evidence

A reference check is neither a formality nor an interrogation. It is a structured way to learn how someone worked in the past and whether those observations relate to the open role. Employers get the most value when they use relevant questions consistently and consider references alongside interviews and other assessments. The check can add context to a candidate’s application, but it should not replace the rest of the hiring process.

*This article is for general informational purposes only and is not legal advice.