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Data Definition and Source: A Dashboard on the Spread and Utilization of My Number Card

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& General

Daily Value

As a reference value for the spread of each policy, we calculate the average number of registrations per day.
It is the sum over a period of time divided by the number of days in the period.
For example, regarding the number of usage registrations for My Number Card as the Health Insurance Certificate, the dashboard calculates the "average number of registrations per day (average of the most recent month displayed)."
This value is obtained by dividing the total number of usage registrations for the most recent month by the number of days in that month (e.g., 31 days for January).

Calculation Period (Monthly)

As a reference for policy progress during a given period of time, monthly totals are calculated for increases in the number of applications and holdings, as well as the number of issues.
The number of months is calculated with the beginning of each month as the starting point and the end of each month as the ending point.

For each of the policies

My Number Card

  • Number of cards held: Number of cards currently held (number of issued cards minus the number of cards that have been abolished due to death, expiration, etc.)
  • Ownership ratio: As a reference for the spread of My Number Card in Japan, calculated by dividing the number of tickets owned at the latest time by the population.
  • Population: Based on the population information used in the issuance status announced by Ministry of Internal Affairs and Communications ( about the issuance status of My Number Card, )

My Number Card on Smartphone

  • Number of registered cards: The number of My Number Card on Smartphone cards currently held (the total number of registered cards for electronic certificates on Android smartphones and My Number Card on iPhone)
  • Number of tickets issued: The number of My Number Card on Smartphone tickets that were issued successfully during a certain period of time (the total number of electronic certificates on Android smartphones and My Number Card on iPhone tickets)

My Number Card as the Health Insurance Certificate

  • "Number of registered users" refers to the number of users who have applied to use My Number Card as their health insurance card and have been registered. The number of valid registrations is calculated by subtracting the number of registrations deleted due to death, etc.
  • Usage rate of health insurance card: Calculated by "Total number of registrations as a health insurance card ÷ Number of health insurance cards held in My Number Card" as a reference for the prevalence of the health insurance card integration policy.

Myna driver's license

  • Number of holders: The number of Citizens who have made a unified application for the use of My Number Card as a driving license and who hold the card (the total number of Citizens who hold only the My Number Card where the driving license information is recorded (so-called Myna driver's license) and the number of Citizens who hold both Myna driver's license and driving license)

Mynaportal

  • Number of logins: Number of logins to Mynaportal

Removals Online Service

  • Number of Moving Procedures in Mynaportal: Number of Moving Procedures in Mynaportal Submitted a Moving-out Notification Using Online Services
  • Ratio: Calculated by dividing the number of procedures using My Number Card in a year by the number of all annual moving procedures.
    • Total number of Mynaportal moves between January 2024 and December 2024 ÷ Annual number of moves in 2024
    • Annual number of moves: The number of moving-out notifications in 2024 according to Ministry of Internal Affairs and Communications research
  • Year-on-year change: This is calculated by dividing the number of procedures conducted using My Number Card in a certain month by the number of procedures conducted in the same month one year ago.

Certificate issuance service at convenience stores

  • "Number issued" refers to the number of times a copy of a certificate of residence was issued at a convenience store, etc. using My Number Card.
  • Issuance ratio: Calculated by dividing the number of procedures using My Number Card during the year by the total number of cases during the year.
    • Total number of Mynaportal moves between January 2025 and December 2025 ÷ Annual number of moves in 2025
    • Annual number of moves: The number of moving-out notifications in 2025 according to Ministry of Internal Affairs and Communications research
  • Year-on-year change: This is calculated by dividing the number of procedures conducted using My Number Card in a certain month by the number of procedures conducted in the same month one year ago.

Japanese Public Key Infrastructure (JPKI)

  • Number of business operators that have introduced Japanese Public Key Infrastructure: The number of private sector that have introduced Authentication App (the total number of business operators approved by the Ministry of Economy, Trade and Industry and business operators that are using the same business operators or digital mobile phone services)

Digital Authentication App

Source of the data