Foreigners in Japan Now Face Stricter ID Checks for Data-Only SIM Cards Starting April 2026

Foreigners in Japan face stricter ID checks for data-only SIM cards starting April 2026.

Tokyo, March 25, 2026 — Japan is introducing tighter regulations on data-only SIM cards and eSIMs, requiring all purchasers — including foreign visitors and residents — to present valid identification documents at the point of sale or during online activation.

The new rule, announced by the Ministry of Internal Affairs and Communications (MIC) and set to take effect on April 1, 2026, aims to curb the growing misuse of anonymous prepaid data SIMs for fraudulent activities, including scam calls, illegal online transactions, and identity theft.

Why Japan Is Cracking Down Now

Data-only SIM cards have become extremely popular among short-term visitors, digital nomads, and even some long-term foreign residents because they offer affordable, flexible mobile internet without the need for a voice plan or long-term contract. However, Japanese authorities have noted a sharp rise in cases where these SIMs were linked to criminal activity, particularly SIM-swapping scams and anonymous harassment.

Under the previous system, many convenience stores and online providers allowed purchases with minimal verification. From next month, buyers will need to show:

• Passport (for tourists and short-term visitors)

• Residence card (Zairyu card) for foreign residents

• Japanese driver’s license or My Number card for Japanese nationals

The requirement applies to both physical SIM cards and eSIM activations.

What Changes for Foreigners in Japan

Tourists and short-term visitors You will no longer be able to buy a data-only SIM anonymously at the airport or convenience store. Staff will scan your passport and record the details before activation.

Foreign residents Even those with valid residence cards must present them when purchasing or activating new data SIMs. This includes popular tourist eSIM providers and major carriers like Docomo, SoftBank, au, and Rakuten Mobile.

Digital nomads and long-stay visitors If you rely on data-only plans for work or daily life, you should prepare to show your residence card or passport every time you need a new SIM or plan renewal.

How Carriers and Retailers Are Responding

Major telecom companies have already updated their systems and trained staff for the new verification process. Some providers are introducing dedicated foreigner counters at major airports (Haneda, Narita, Kansai) to reduce queues.

Online eSIM providers that previously offered instant activation without ID will now require users to upload a clear photo of their passport or residence card during the checkout process.

Practical Tips for Foreigners in Japan

• Buy your SIM or eSIM before April 1 if you want to avoid the new checks during your current trip.

• Carry your passport or residence card at all times when purchasing mobile services.

• Consider longer-term plans with major carriers if you plan to stay several months — they often include better support for foreigners.

• Download the official MIC guidelines (available in English on their website) for full details.

The Ministry has stated that the measure is temporary but necessary to protect the integrity of Japan’s mobile network. No end date has been announced, and authorities say they will review the policy after six months.

Official sources Ministry of Internal Affairs and Communications (MIC): Consumer Affairs Agency consumer protection page

Need more Japan travel tips, SIM card guides, or long-term residence information for 2026? Explore our complete Japan section here: Japan Visa & Travel Updates

Foreigners planning trips to Japan after April 1 should factor in the new ID requirement when buying mobile data. While it adds one extra step, authorities say it will help make Japan’s mobile network safer for everyone.