Reference Checks in Japan: Questions, Referees, and Consent

A reference check is a hiring method in which an employer seeks information about a candidate's work and background from people who have worked with them. Former managers or colleagues may be asked to help. Timing, questions, and the number of referees differ by company. See this explanation from a reference-check provider.

Before sending someone's contact details, establish who will be contacted, what will be asked, how consent is obtained, and whether contact with your current employer can be avoided. This guide explains preparation from the candidate's perspective in Japan.

Reference checks and investigations of previous employment

The Japanese term “zenshoku chosa,” or investigation of previous employment, can refer broadly to anything from employment verification to questions about performance. A reference check can be understood as gathering accounts from people familiar with your previous work to inform hiring. The label alone does not establish scope or procedure.

It may also differ in purpose and scope from a background check using public information or simple employment verification. If told only that your previous employer will be called, ask whether this means confirming dates or also discussing performance and reasons for leaving.

A third party's account depends on the period, team, and responsibilities they observed. One person's assessment cannot represent everything about you. Ask how the information will supplement interviews and your work history.

Who is asked what? Example questions

Prepare by considering questions the referee, rather than the candidate, might answer. These are editorial examples for understanding possible scope, not an actual questionnaire from a particular employer.

Ask the employer whether reasons for leaving or achievements will also be checked. Use this preparation to correct factual errors in your application, rather than to coach someone into giving the employer a preferred answer.

For example, if your work history says you “led the project” but you actually handled part of its scheduling, revise the description to show your scope. Do not ask a referee to memorize your wording.

Choose someone who knows your work

First confirm the employer's requirements: whether a manager is essential, a colleague is acceptable, someone from an earlier job is allowed, and how many people are needed.

Consider four points: time spent working together, work they observed, whether you are in contact, and their capacity to help. A supportive acquaintance who has never worked with you may not be able to give concrete work-related answers.

If your current employer does not know about your search, discuss that first. For example, back check explains that people from a previous employer or colleagues who have already left may be acceptable depending on the hiring company's requirements. This is that service's guidance, not a universal rule. See its candidate information.

Do not register a family member as a former colleague or have someone impersonate another person. Ask instead about changing the referee requirements or extending the deadline.

From the initial request to completion

Procedures vary by employer and service. Use the following as a discussion guide. One online implementation has the candidate register referees' names and email addresses, with consent procedures before answers are requested. The back check FAQ explains its own process.

1. Obtain the purpose, procedure, referee requirements, and deadline from the hiring company.
2. Discuss contact you want to avoid, such as contacting your current employer.
3. Review your consent terms and what information will be collected and shared.
4. Explain the request and workload to prospective referees, and obtain agreement to participate and share their contact details.
5. Submit details through the designated official channel so the referee can respond.
6. Ask the hiring company to confirm completion and the next selection stage.

Confirm the response method, expected time, identity-verification documents, and deadline with the representative rather than guessing. Avoid forwarding referees' details or identity documents to people who do not need them.

Six points to check before consent

Read the explanation and privacy policy before submitting contact details.

• Purpose: Is the information used only for this hiring decision or for other purposes too?
• Contacts: Could anyone besides your nominated referees, or your current HR team, be contacted?
• Scope: Will questions cover duties, employment history, or performance?
• Sharing: Who can read the responses, and which service provider is involved?
• Management: What are the retention period and inquiry or deletion procedures?
• Selection: Are alternatives or schedule changes available if participation is difficult?

Under Japan's Act on the Protection of Personal Information, third-party provision of personal data generally requires prior consent, with statutory exceptions. Not every conversation has the same legal treatment, and a consent form does not make every investigation lawful. See the Personal Information Protection Commission's guidelines and raise specific questions with the organization conducting the check.

Example message to a prospective referee

This fictional message assumes you have already confirmed the procedure and workload. You do not need to attach a long work history or confidential documents to the first request.

“Hello [name], I hope you are well. As part of a job application, I have been asked to arrange a reference check with someone I previously worked with. It would involve answering questions, following the provider's instructions, about our work together on [task]. The response method is [method], the deadline is [date], and the provider has confirmed an estimated duration of [time]. Would you be willing to help, and if so, may I register your contact details? Please feel free to let me know if the request would be difficult.”

After they agree, share the dates and responsibilities you worked on together for factual checking. Do not direct them to use particular answers or omit weaknesses. Thank them afterward, and do not pressure them to reveal their full response.

If you want to decline or cannot find a referee

Ignoring the request may hold up selection. Explain the reason and the adjustment you want to discuss promptly. Declining cannot universally be said to guarantee rejection or have no effect; ask about the company's process.

You do not want your current employer to know

Example: “My current employer does not know about my job search, so I would like to avoid contact with them. Could I ask a former manager or a colleague who has already left? I would also like to confirm that no one other than my nominated referees will be contacted.”

You cannot reach a suitable referee

Example: “I am contacting people who meet the requirements, but obtaining a response by the deadline looks difficult. Could we discuss using a colleague instead, adjusting the number of referees, or extending the deadline?”

You are not comfortable with the investigation's scope

Example: “Before deciding whether to consent, could you explain the questions, recipients, and retention period further? I would like to review that information before deciding how to proceed.”

Separate the difficulty before deciding to withdraw. Is it contact with your current employer, lack of referees, or concern about information handling? A specific issue makes alternatives easier to discuss.

Frequently asked questions

What should I prepare for a reference check?

Review your responsibilities, employment dates, and achievements in your application, and organize facts that someone who worked with you could recognize. For formal interview preparation, see 50 job interview questions.

Can I see the results myself?

Disclosure arrangements vary by employer and service. Do not assume that the full response will be shared with you; check the terms or inquiry channel.

Does completion mean I have an offer?

Completion is not the same as an offer. Other interviews or internal approvals may remain. Confirm the next step and expected contact date, and avoid fixing a resignation date before the outcome is settled.

Checking referee suitability and information handling before proceeding can reduce uncertainty and conflicting explanations. Keep facts separate from matters that remain undecided when communicating with both the employer and referees.