Digital Minister Recommends Carrying Two Cards Despite Push to Integrate “My Number Driver’s License” into One Amid Usability Concerns

Digital Minister reveals that having two driver’s licenses is the right thing to do
Reality of being turned away at the door at car rental stores
According to a report released in January this year by Hideyoshi Kawagishi of the NLI Research Institute, as of the end of 2025, the number of My Number driver’s license holders remains at approximately 2.22 million (about 2.7% of all license holders), and of those, only around 30% have fully integrated to a single card.
Behind this sluggish growth is the delayed response of private-sector services. Kawagishi points out that some rental car and car-sharing operators do not support the My Number driver’s license, meaning that in some cases only the conventional driver’s license can be used.
In fact, the website of the Japan Rent-A-Car Association cautions that “if the license details cannot be read and verified using the in-store terminal, we may refuse the rental.”
Specifically, the situation is as follows (as of early February).

Regarding driving a car overseas, the Ministry of Foreign Affairs warns on its website, “Please bring your conventional driver’s license.” The reason given is that driver’s license information is not displayed on the face of the My Number card.
Lower renewal fees, but the reality is far too inconvenient
Of course, there are also advantages to switching to the My Number driver’s license. In his report, Kawagishi cites lower fees as one benefit. He points out that this appears to reflect reductions in administrative work and costs on the government side due to the digitization of procedures.

Interview and text by Hideki Asai: Hideki Asai