Job Offer Letters in Japan: Checks Before You Accept
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Category: Job Search Preparation & Interview Tips, Career Change Strategy
Authors: Shusaku Yosa
A job offer letter communicates an employer’s intention to hire. If it has not arrived, start with the promised delivery date, method and response deadline rather than a universal waiting period. Before deciding whether to accept, obtain the actual working conditions in writing.
What an offer letter does—and what its arrival does not settle
Companies use different document names and may communicate by email. The arrival of a letter alone does not determine, in every case, whether an employment contract has formed. The recruitment process, notification, acceptance and related exchanges matter. See the MHLW guidance on offers and preliminary offers for the Japanese context.
Do not write “I accept” merely to acknowledge receipt while you are still checking conditions. Keep records of the correspondence. If a dispute arises over acceptance, withdrawal or cancellation, seek guidance from a labor consultation service.
Distinguish the three common documents
Document | Purpose | What to inspect |
|---|---|---|
Offer or hiring notice | Communicates the hiring decision and next steps | Start date, response deadline, required documents and contact |
Notice of working conditions | Specifies employment conditions | Contract term, workplace, duties, hours, pay and termination matters |
Employment contract | Records the parties’ agreement | Agreed terms, consistency with other documents and signing procedure |
One document can serve more than one purpose. Check its contents, not only its heading. If it differs from the vacancy or interview explanation, ask which terms apply and request written clarification.
If the letter has not arrived
- Check email, spam, the recruitment portal and postal mail, and verify the contact details supplied.
- Record the promised date, contact person and response deadline.
- If the promised date has passed, ask the recruitment contact about delivery. If no date was given, ask for the schedule.
- If the response deadline is close, explain that the documents have not arrived and request time to review the conditions.
There is no need to wait a fixed week regardless of the employer’s instructions. Match the timing to the actual arrangement. A delay by itself does not establish cancellation or rejection.
Follow-up email template
Subject: Offer documents and next steps — [Name]
Dear [Recruitment contact],
Thank you for informing me of the offer on [date]. I understood that the offer documents would be sent around [date], but I have not yet been able to confirm receipt.
Could you please confirm the delivery status, next steps and response deadline?
Thank you for your help.
[Name and contact details]
If no delivery date was promised, replace that sentence with a request for the expected schedule for the offer documents and working conditions. Do not invent a prior commitment.
Check the conditions before acceptance
Area | Questions to resolve |
|---|---|
Duties and location | Initial assignment and the scope of possible changes |
Pay | Basic pay, allowances, fixed overtime amount and covered hours, excess overtime and bonus conditions |
Schedule | Hours, breaks, overtime, shifts, days off and remote-work arrangements |
Contract and probation | Fixed or indefinite term, probation conditions, renewal criteria and limits |
Start and departure | Onboarding date, handover coordination and relevant termination provisions |
Japan’s disclosure rules changed in April 2024, including the scope of changes to workplace and duties and renewal limits for fixed-term contracts. Additional disclosures apply at relevant renewals when an indefinite-term conversion right arises. Refer to the MHLW explanation of the disclosure rules.
For example, a monthly-pay figure does not tell you whether it includes fixed overtime. A nationwide-transfer clause does not identify the initial workplace. Ask specific questions and request corrected written terms when a material discrepancy remains.
Request extra time without implying acceptance
Subject: Request to discuss the offer response deadline — [Name]
Thank you for the offer. I would like to review the proposed conditions before making a decision and am currently seeking clarification about [specific point].
Would it be possible to extend the response deadline to [date]? Please let me know whether this can be accommodated.
Thank you for considering my request.
An extension request is not an agreed extension until the employer confirms it. Once a date is agreed, meet it and communicate acceptance or rejection clearly after deciding. Resolve essential conditions and the start date before taking steps such as ending current employment or housing arrangements.
For a young company, use the startup due-diligence questions. If a work-experience opportunity is available, the observation worksheet helps turn impressions into questions.
Sources
Public information checked on September 27, 2026. Confirm current requirements with the relevant authority for your circumstances. Japanese sources and related articles are linked below.
