My number (social security · tax number) system

Table of Contents

What is My Number

My number is a 12-digit number assigned to everyone with a juminhyo (certificate of residence). Administrative organizations will be able to confirm personal information held by countries and municipalities with their My Number, and some procedures at the counter will be omitted.


  • 通知カードとは、マイナンバーをお知らせする薄緑色の紙製のカードです。券面に氏名、住所、生年月日、性別、マイナンバーが記載されたものになります。
  • 通知カードは令和2年(2020年)5月25日に廃止されました。
  • 廃止後は「個人番号通知書」の送付となり、「個人番号通知書」はマイナンバーの証明書類として利用できません。
  • 証明が必要な場合、マイナンバー入りの住民票(手数料がかかります。)を取得いただくか、マイナンバーカード(発行手数料は無料)を申請し、マイナンバーカードを取得する必要があります。
  • すでに通知カードをお持ちの方は、これまでどおり証明書類として使用できますが、紛失時の再交付はできません。

About my number card (personal number card)

  • Grant of my number card (personal number card) begins in January, 2016.
  • The initial delivery fee is free. (The reissuance fee is 800 yen.)
  • My number card will display your face photo, name, address, date of birth, gender and expiration date on the front, and your number will be displayed on the back.
  • The validity period of My Number Card is from the date of issue until the 10th birthday for those over 20 years old, and until the 5th birthday for those under 20 years old.
  • My Number Card is an official document with a photo that can be used as an identification card to verify your identity, and using an electronic certificate on the IC chip of the card, Various electronic applications such as tax payment system) can be made.
Note: Application for My Number Card is optional.
  • For details on personal number card, please see the following page.

About digital signature certificate

  • It is a certificate which recorded that you are elected personally.
  • The fee for issuing an electronic certificate at the time of issuing the personal number card for the first time is free, but when re-issuing the electronic certificate by re-issuing the personal number card etc., the reissue fee will cost 200 yen.
  • The validity period is from the issuance date to the fifth birthday.
  • Even within the validity period, if there is a change in the address, name, etc., the digital certificate for signature will be automatically revoked.
  • It will not be issued to those under 15 years of age and those wed for adults. (To correspond to the seal)

About the user's electronic certificate

  • When you browse the Internet, you can use it as a means of certifying that you are a principal, such as login of a minor portal, by a mechanism to prove that you are the user himself.
  • What is a minor portal?
This is a portal site that allows you to check how your information including My Number is being exchanged in the governmental organization from a PC or a smartphone that supports My Number Card, as well as to receive information on administrative services.

Application method of my number card (personal number card)

  • 通知カードの下に申請書が付いていますので、通知カードと切り離し、必要事項を記入のうえ同封されている返信用封筒にて郵送してください。スマートフォン、パソコンからも申請は可能です。
  • マイナンバーカードの申請方法は下記リンクのページをご覧ください。

Minor points

  • What are minor points?
1. Get my number card,
2.For those who have booked minor points with a card,
3. It is a mechanism that the country gives points that can be used for shopping with the selected cashless payment service.
The premium point rate is 25%, and if you charge or shop for 20,000 yen without cash, you can get a maximum of 5,000 yen minor points per person. (You can also charge in 1,000 yen units.)
  実施場所:ニセコ町役場1階 町民生活課
Implementation date and time: Weekdays from 8:30 am to 5:15 pm (except December 31 to January 5)
  問合せ先:総務課情報管理係 TEL:0136-44-2121


For more information and the latest information, please see the following page.

Inquiries about My Number

コールセンター フリーダイヤル 0120-95-0178
Weekdays 9: 30 ~ 20: 00 Saturdays, Sundays, holidays 9: 30 ~ 17: 30
(Excluding the year-end and New Year holidays from December 29 to January 3.)

Specific personal information protection evaluation report (basic item evaluation document)

When the town owns and uses specific personal information that includes My Number in its contents, we will conduct a Privacy Impact Assessment on risk measures such as usage methods and leakage of information.
For the evaluation of protection of specific personal information, we will prepare and publish the "Specific Personal Information Protection Evaluation Report".

Notification concerning information collaboration of proprietary use affairs

In addition to the clerical work prescribed in the My Number Act, the town uses its own My Number as the ordinance based on Article 9, Paragraph 2 of the My Number Act and sets it as its own use affairs.
Among these independent use clerks, information coordination with other local public entities using the information provision network system can be made for items that satisfy the requirements specified by the Regulations of the Personal Information Protection Committee (My Number Act Article 19 No. 8).
Regarding Niseko Town's original use affairs, those that cooperate with the information will be notified to the Personal Information Protection Commission based on the My Number Act Article 19 No. 8 and the Personal Information Protection Commission Rules Article 4 Paragraph 1 as follows: Notification has been made and approved.
· Ordinance
· Notification Form

My number External related site

Inquiries regarding information on this page

Residents' staff of the townspeople living section
General Affairs Division Information Manager