Crypto in Yokohama & Kanagawa: local bank rules, US bases and the Tokyo shortcut

The honest picture: almost nothing is local

We looked hard for a Yokohama crypto scene and came back mostly empty-handed. None of the 27 exchanges on the FSA's register is headquartered in Kanagawa. There is no crypto ATM in the prefecture. We found no Web3 or blockchain programme run by Yokohama City or Kanagawa Prefecture, and no crypto meetup in Yokohama on Connpass, Luma or Meetup across 2025 and 2026. The one Kanagawa event we did find was the NEMTUS developer community's "HACK+2026" hackathon camp in Hakone on 17 January 2026.

That is less strange than it sounds. Exchanges, conferences and the community spaces all cluster in Tokyo, and from Yokohama Station you can be in Shibuya or Akihabara in well under an hour. So the useful Yokohama guide is not a list of local spots. It is the local rules you need to get right, plus the Tokyo places worth the train ride.

Yokosuka, Zama, Atsugi: SOFA personnel and US persons

Kanagawa Prefecture lists 11 US military facilities covering about 1,695 hectares as of 1 July 2026. They include Fleet Activities Yokosuka, Camp Zama (spanning Sagamihara and Zama), Naval Air Facility Atsugi (in Ayase and Yamato), Sagami General Depot in Sagamihara and the Yokohama North Dock. If you are stationed at one of them, or are a civilian employee or dependent, you are probably here under the US-Japan Status of Forces Agreement, and that affects crypto in two ways. This is general information, not legal or tax advice.

Opening an account. A Japanese government answer to the Diet confirms that SOFA members, the civilian component and their families are outside Japan's alien-registration system under Article IX of the agreement, so they usually don't hold a residence cardZairyu card (在留カード): the ID card for foreign mid- to long-term residents. Japanese exchanges commonly accept it for identity checks.. Japanese exchanges verify you through eKYCElectronic know-your-customer: scanning your ID and face in the app instead of mailing documents. with Japanese documents (My Number card, Japanese driver's licence, residence card) plus a registered address and a Japanese phone number. Without those, sign-up may simply not be possible. Ask the exchange's support desk before you start.

Tax. SOFA Article XIII exempts members, the civilian component and dependents from Japanese tax on income received through their service with or employment by US forces, but it does not exempt income from Japanese sources. Whether a crypto gain on a Japanese exchange is Japanese-source income in your case is a technical question. Your installation's legal assistance office or tax center, together with a Japan-qualified tax accountant (zeirishi), is the right place to ask.

Bank of Yokohama's transfer rule, and why your name matters

Bank of Yokohama, the prefecture's main regional bank, says in an official notice that it restricts transfers to crypto exchanges and funds-transfer providers when the sender name differs from the account holder's name. It is not acting alone: on 6 February 2024 the National Police Agency and the FSA asked bank associations nationwide to refuse such transfers, because scammers were routing victims' money into exchange accounts under other people's names. Japan Post Bank has said it may restrict accounts after suspicious exchange transfers too.

For foreign residents, the practical risk is spelling. Your bank account may be in katakana or in the alphabet, with or without a middle name, and your exchange profile may differ. If they don't line up, a perfectly honest deposit can bounce or get held. Before your first transfer:

• Match the name on your exchange account to your bank account and ID.
• Only add the numeric code the exchange gives you, nothing else.
• Never deposit from a partner's or company account.
• Treat anyone asking you to "deposit to this account" as a scam. See our scams guide.

Buying from Kanagawa, step by step

1. Choose a registered exchange

   Check it on our list of FSA-registered exchanges and compare costs on the fee comparison. Unregistered offshore platforms can't legally serve Japan residents.

2. Verify your identity

   Use a My Number card (fastest) or a residence card in the app. Expect Japanese-language screens at most exchanges.

3. Self-certify your tax residence

   Since 1 January 2026 exchanges ask for your tax residence and any foreign tax ID under the OECD's crypto reporting framework (CARF).

4. Fund it the cheap way

   Transfers from Bank of Yokohama work but cost a bank fee. GMO Coin offers free instant deposits from Japan Post Bank, PayPay Bank and docomo SMTB Net Bank, so a second account at one of those saves time and money.

5. Buy small, then move to the order book

   The dealer desk (販売所, hanbaijo)Hanbaijo (販売所): the exchange sells to you at a quoted price. Simple, but the spread is the hidden cost. is easiest; the order book is cheaper once amounts grow.

Our step-by-step bitcoin guide shows the screens, and ways to pay for crypto compares bank transfer, instant deposit, konbini and PayPay.

Your Tokyo day trip: ATM, community space, conferences

Everything physical is a short train ride away. These are the places Kanagawa residents actually use:

Crypto ATMs charge far more than exchanges and are a favourite tool of phone scammers, so read the crypto ATM guide before you go. Venues that take bitcoin and the exchange HQs are in our Tokyo guide, and dates for the year are on the events calendar.

Paying with crypto in Kanagawa

BTC Map's Yokohama entries are only the rotating stops of two food trucks, in Totsuka and Kohoku wards, last confirmed in March and July 2026. Elsewhere in Kanagawa the map lists a snack bar in Odawara that takes Lightning on Fridays and a café in Yugawara that takes on-chain bitcoin only. These are community listings; check before you go.

Football fans may have heard of a Shonan Bellmare token. The Hiratsuka club issued a club token on the FiNANCiE platform in 2021, but that is a platform token, not a crypto-asset you can trade on a registered Japanese exchange. For a club token that is exchange-listed, see FC Ryukyu Coin in our Okinawa guide. The bigger picture is in where to spend crypto in Japan.

Tax for Kanagawa residents

The National Tax Agency puts Kanagawa's tax offices under the Tokyo Regional Taxation Bureau (Tsukiji 5-3-1, Chuo-ku, Tokyo; tel. 03-3542-2111), together with Tokyo, Chiba and Yamanashi. You still file with the tax office for your own address, normally online through e-Tax; the NTA site has a postcode lookup.

Crypto gains are generally miscellaneous incomeZatsu shotoku (雑所得): the catch-all income category, added to your salary and taxed at progressive rates, up to about 55% with resident tax., taxed together with salary at 5–45% national tax plus 10% resident tax. Swaps between coins and paying with crypto are taxable events, not only cashing out to yen. If you are salaried with one employer and your other income is ¥200,000 or less, you can skip the national return, but resident tax still needs a declaration. A flat 20.315% rate with a three-year loss carryforward is now law, starting in 2028 at the earliest.

Foreign nationals resident for five years or less out of the past ten are usually non-permanent residentsHi-eijusha (非永住者): a tax status for foreign residents with five years or less of residence in the past ten. Foreign income is taxed only if paid in or remitted to Japan. for tax purposes, which changes how income from abroad is treated. Our Japan crypto tax guide, the 20% reform explainer and moving to or leaving Japan with crypto go further.

Cruise passengers and short-term visitors

Yokohama's cruise terminals and nearby Haneda bring a lot of short-stay visitors. If that's you, Japanese exchanges won't accept you, and there's no ATM in Kanagawa to sell coins for cash. The realistic options are a crypto-linked Visa or Mastercard from home, or, if you use Binance Pay abroad, paying at participating PayPay merchants through the cross-border QR scheme that started on 30 September 2026 (not open to Japan residents). If you need an on-ramp before your trip, do it at home with a provider licensed where you live.

Crypto in Yokohama and Kanagawa: FAQ

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