Resetting and Changing the PIN for My Number Card (Individual Number Card)

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Page ID 1002631 Update Date Reiwa 6, December 16

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Regarding the reset of the PIN for the My Number Card (Individual Number Card)

If you forget your PIN or if your PIN is locked, the following procedures are required at City Hall or the Branch Office.
Additionally, the PIN for the signature electronic certificate (6 to 16 alphanumeric characters) can only be processed at convenience stores, etc.

Required Documents

Personal Application

  1. My Number Card
  2. Identity verification documents A1 point or B1 point (see below for "List of Identity Verification Documents")

Application for Legal Representative (for those under 15 years old and adult wards)

In addition to the above, the following documents are required.

  1. Identification documents of the agent A2 points or A1 points + B1 points (see below for "List of Identification Documents")
  2. If the person is under 15 years old, a copy of the family register (not required if the person and their legal representative are in the same household and the person's registered domicile is within Inagi City) is not required.
  3. Certificate of Registered Matters for Adult Guardianship

Application for Voluntary Agent

For more details, please contact us.
Note: In the case of applying for a voluntary agent, the PIN reset cannot be done on the same day.

Regarding the Reset of the PIN for the Electronic Signature Certificate

You can reset the PIN for the signature electronic certificate (6 to 16 alphanumeric characters) at convenience stores, etc.
Note: A 4-digit PIN cannot be initialized at convenience stores, etc. Procedures at City Hall or Branch Office are required.
The steps are as follows.

  1. Download the dedicated app for your smartphone (for iPhone / for Android) and take a photo of the My Number Card surface information.
  2. Hold the My Number Card up to your smartphone to read the IC chip. At this time, enter the user electronic certificate PIN (4-digit number).
  3. Complete the preparation in advance by taking a photo of your My Number Card and matching it with your face using your smartphone.
  4. After completing the necessary preparations, within 24 hours, go to a convenience store or similar location, hold your My Number Card up to the kiosk terminal in the store, and enter the PIN for user electronic certification.
  5. Resetting the PIN for the new signature electronic certificate.
  • Note: For available store information, please visit the official personal authentication service portal site.
  • Note: For detailed setup instructions, please refer to the Local Government Information System Organization (J-LIS).
  • Note: If 24 hours have passed since the preparation was completed, please start over from the beginning.

Regarding the change of the PIN for the My Number Card (Individual Number Card)

If you wish to change the PIN for your My Number Card, the following procedures are required at City Hall or a Branch Office. Additionally, it is also possible to use the public personal authentication service to complete the procedures from your home computer, etc.
Note: If you do not know your PIN, please refer to the "About Resetting the PIN for My Number Card" above.

Required Documents

Personal Application

My Number Card (PIN verification is required)

Application for Legal Representative (for those under 15 years old and adult wards)

In addition to the above, the following documents are required.
Please note that the procedure can only be completed by the legal representative visiting the office.

  1. Identification documents of the agent A2 points or A1 points + B1 points (see below for "List of Identification Documents")
  2. If the person is under 15 years old, a copy of the family register (not required if the person and their legal representative are in the same household and the person's registered domicile is within Inagi City) is not required.
  3. Certificate of Registered Matters for Adult Guardianship

Application for Voluntary Agent

For more details, please contact us.
Note: In the case of applying for a voluntary agent, the change of the password cannot be done on the same day.

Application via PC, etc.

You can change the PIN of your My Number Card online using the public personal authentication service.
In addition to an internet connection, you will need an IC card reader and user client software. For more details, please refer to the information below.

List of Identity Verification Documents

  • Identification documents must be valid and within their expiration date.
  • Identification documents must match the Certificate of Residence with either "name and date of birth" or "name and address".

A government-issued photo ID

  • Driver's License
  • My Number Card (with photo)
  • Basic Resident Register Card (with photo)
  • Passport
  • Disability Certificate
  • Driving History Certificate (limited to those issued on or after April 1, 2012)
  • Residence Card (with photo)
  • Special Permanent Resident Certificate (with photo) etc.

B No Photo ID

  • Health Insurance Card
  • Long-Term Care Insurance Card
  • Pension Book
  • Basic Pension Number Notification
  • Various Pension Certificates
  • Public Assistance Recipient Certificate
  • Various Medical Certificates (Maru Nyuu, Maru Ko, Maru Ao)
  • Maternal and Child Health Handbook (for those who have received a certificate of birth registration)
  • Residence Card (No Photo)
  • Special Permanent Resident Certificate (No Photo)
  • Student ID (one that includes "name and date of birth" or "name and address")
  • Employee ID (one that includes "name and date of birth" or "name and address") etc.

Note: If you have a public identification document with a photo, it may be possible to verify your identity with just one document (as a supplement to the identity verification documents, confirmation of the IC password, or for those registered as residents in the city, a hearing will be conducted).

Application Location

  1. Citizen Affairs Division Citizen Service Section (Open only on weekdays and holiday service counter days)
  2. Hirao Branch Office (Weekdays only, excluding Saturdays, Sundays, and holidays)
  3. Wakabadai Branch Office (Weekdays only, excluding Saturdays, Sundays, and public holidays)

Reception HoursFrom 8:30 AM to 5:00 PM (However, on holidays, the hours from 11:45 AM to 1:00 PM are excluded)

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Inquiries about this page

Inagi City Department of Citizen Affairs Citizen Affairs Division
〒206-8601 Tokyo, Inagi City, Higashi-Naganuma 2111
Phone number: 042-378-2111 Fax number: 042-377-4781
Contact Inagi City Department of Citizen Affairs Citizen Affairs Division