If you’re living in Japan as a foreigner, getting your My Number card (マイナンバーカード) is one of the smartest administrative moves you can make. This government-issued ID card is linked to your 12-digit Individual Number and is increasingly required for everything from opening a bank account to filing taxes and accessing government services online. The application process can feel confusing at first, especially if your Japanese is limited, but this guide will walk you through exactly how to get a My Number card in Japan — from start to finish.
What Is the My Number Card and Why Do You Need It?
The My Number card is a plastic IC chip card issued by the Japanese government that serves as both a photo ID and a gateway to digital government services. It is different from the My Number notification slip (通知カード) that was mailed to your registered address when you first received your Individual Number — that slip is not an ID card.
In 2026, the card has become more essential than ever. Many municipalities now require it for accessing Mynaportal, Japan’s online administrative portal. Some banks, including Japan Post Bank and Rakuten Bank, also streamline account verification using the card. If you are filing a tax return (確定申告) as a freelancer or self-employed resident, having the card makes online submission through e-Tax significantly easier.
Even if you already have your Residence Card (在留カード), the My Number card provides an additional layer of convenience for daily life in Japan that you will genuinely appreciate over time.
What You Need Before You Apply
Before starting your application, make sure you have the following ready. First, you will need your My Number notification slip or any document that shows your 12-digit Individual Number. If you have lost it, contact your local municipal office (市区町村役場) to retrieve your number.
You will also need a recent photo of yourself (4cm × 3cm, plain background, no hats, taken within the last six months). If you are applying online via smartphone, the app will guide you to take a photo directly. Finally, prepare a secure password in advance — the card requires you to set multiple PINs during activation, including a 4-digit number and a 6–16 character alphanumeric password.
Step-by-Step: How to Apply for Your My Number Card
There are three ways to apply: online via smartphone, by mail using the application form from your notification slip, or in person at your municipal office. Online is the fastest and most straightforward method for most residents.
Option 1: Apply Online (Recommended)
Download the official My Number Card application app or visit the application website at kojinbango-card.go.jp. Scan the QR code from your notification slip, upload your photo, fill in your details, and submit. The whole process takes about 10–15 minutes.
Option 2: Apply by Mail
If you received a paper notification slip, it includes a detachable application form on the back. Fill it out, attach your photo, and mail it to the address provided — no postage required.
Option 3: Apply at Your Municipal Office
Visit your local city or ward office with your notification slip and a photo. Staff can assist you directly. This is a good option if you have lost your notification slip or want help in person.
After submitting your application, you will receive a pickup notice postcard (交付通知書) at your registered address in approximately 4–8 weeks. Bring this postcard, your Residence Card, and your notification slip to the municipal office to collect and activate your card in person — this final step cannot be skipped.
Common Mistakes Foreigners Make
One of the most frequent mistakes is moving to a new address before picking up the card. If you move after applying but before collecting your card, the pickup notice will go to your old address. Always pick up your card before relocating, or update your address at the municipal office promptly.
Another common issue is forgetting your PINs. During card activation, you will set multiple passwords. Write them down and store them securely — if you forget your PIN, you will need to visit the municipal office in person to reset it, which can be time-consuming.
FAQ
Can foreigners with a short-term visa get a My Number card?
No. Only residents registered in the Jūminhyo (住民票) system are eligible. This typically means those on mid- to long-term visas such as work, student, spouse, or permanent resident visas. Tourists on short-stay visas cannot apply.
What if I lose my My Number card?
Report it immediately by calling the My Number Card Contact Center at 0120-95-0178 (available 24 hours) to suspend the card. Then visit your local municipal office to apply for a replacement. There is a reissuance fee of ¥1,000.
Does my My Number card expire?
Yes. For adults (18 and over), the card itself is valid for 10 years, but the electronic certificate on the IC chip expires after 5 years and must be renewed at your municipal office free of charge.
Conclusion
Getting your My Number card in Japan is one of those tasks that feels like a hassle until it’s done — and then you’ll wonder how you managed without it. The online application takes less than 15 minutes, and the card opens doors to a much smoother administrative life in Japan. Start your application today at kojinbango-card.go.jp, and check out our other guides on registering your address in Japan and opening a Japanese bank account to keep building your foundation as a resident.
