Before leaving your job in Japan, compare your pension record with your employment history. A missing period is easier to describe when you still have access to payroll records and the people who prepared them. The aim is to identify specific discrepancies, then ask for an explanation or investigation before relying on the record for a withdrawal claim.
Build a separate employment timeline
Start with a simple list of employers, workplace locations and the dates you joined and left. Add intervals when you were a student, self-employed, between jobs or covered through a spouse. This is a comparison tool, not a declaration that every calendar month must have the same pension status.
Keep supporting files in date order. Payslips, employment contracts and pension notices may help you explain a discrepancy. Keep these documents separate from your own notes. Label uncertain dates instead of filling them in from memory as if they were confirmed.
Open the monthly record
The official Nenkin Net instructions guide users from the pension-record area into the detailed monthly view. Selecting a month opens more information, and icons draw attention to months that should be checked. The service also provides a print function.
Work through the period employer by employer. Save a dated copy of the record and write your questions separately. A highlighted month is a prompt to examine the entry; it should not be treated as a confirmed administrative error without checking its meaning.
Ask a question that can be investigated
"My pension looks wrong" leaves the person helping you with a large search task. A more useful inquiry is: "I worked for Employer A from April through September of this year, but I cannot identify those months in this record. Which entry should I be looking at?"
For a remuneration question, identify the month and the amount shown. For a name issue, list the name used at that employer and any later name change. Keep employer names as written on the original documents, adding an English explanation separately if helpful.
Use the official record-inquiry route
Japan Pension Service provides record inquiry and correction procedures, including an inquiry form for suspected omissions or errors and a work-history organizer. Ask the pension office which route fits the issue rather than assuming that every mismatch requires the same formal correction request.
Prepare a short inquiry pack:
- The specific months or entries you want explained.
- The employer’s recorded name and any former name you used.
- Copies of relevant evidence, with originals kept available.
- Your pension identification information and a reliable reply address.
Use official contact instructions to confirm identification and appointment requirements. Keep personal records out of public forums and send them only through the channel the receiving office specifies.
Keep the inquiry connected to your departure plan
Create a follow-up note with the date, office, question asked and next action. If you will leave before receiving an answer, establish how correspondence will reach you and how you can respond from abroad. Keep inquiry correspondence together with the record version it refers to.
Do not turn an unresolved month count into a confident withdrawal estimate. First resolve what the record means, then revisit the withdrawal application guide and, if appropriate, the pension withdrawal calculator. A corrected history may affect more than an estimate; the decision to preserve or withdraw pension rights deserves its own review.