My Number Card
Update date: November 1, 2024
Per the Social Security and Tax Number System (nicknamed “My Number”), which went into effect in January 2016, all registered residents of Japan are issued a twelve-digit individual number, this includes foreign residents conducting research in Japan for a period longer than 90 days who have a visa status other than “short-term stay” (temporary visitors).
This number will be required for several kinds of administrative procedures, including social security and tax, as well as disaster countermeasures. Since you will be asked for your individual number for tax procedures at Hokkaido University, please be sure to obtain your individual number and individual number notification card when you file your resident registration. As a rule, once you receive your number, it will not change throughout your lifetime. If you leave Japan and then re-enter the country, you will be given the same number.
The issuance of the My Number is limited to “foreign residents with a registered address in Japan.” In other words, it is restricted to “mid-to-long-term residents” who have been issued a residence card by the Immigration Bureau.
https://www.kojinbango-card.go.jp/en/
