Getting Your My Number
When you register your address in Japan for the first time, a 12-digit My Number (Individual Number) is assigned to you. The number is recorded in your resident register on the day of registration, and an 'Individual Number Notification' letter will be mailed to your address within approximately 2–3 weeks by non-forwardable registered mail.
🔗 Related procedures
Move-In Notification
Register your address at the city or ward office of your new location. If moving from within Japan, you must complete the move-out notification first. If arriving from abroad for the first time, no move-out certificate is required.
My Number Card — New Application
You can apply for a My Number card by smartphone, PC, post, or photo booth. It takes roughly one month from application until your municipality sends the collection notice, and you must collect the card in person at the counter. Once you have the card you can also register it as a health insurance card in Mynaportal.