Sell Bitcoin in Japan

Selling Bitcoin in Japan is mostly a National Tax Agency (NTA) exercise. The mechanics are clean; the tax rate is the issue.

Mechanics. Send BTC to a regulated platform, complete KYC, agree on the sell rate in yen, choose a payout. Furikomi (domestic bank transfer) is the default JPY payout: settles same-day for most major banks, next business day for some. Card payouts are available with lower limits.

NTA tax framework. Crypto disposals in Japan are zatsu shotoku (miscellaneous income), combined with employment and other income at progressive marginal rates. Total rates can reach 55% including the 10% local resident tax and standard reconstruction surcharge. There is no long-term holding discount: a position held for ten years is taxed the same as one held for ten days. Crypto-to-crypto trades are also taxable events at the JPY value of the crypto received.

The ¥200,000 de minimis threshold is the one helpful detail: if your only other income is employment and your annual zatsu shotoku across all sources stays below ¥200,000, you may not need to file a separate return. Above that, every disposal needs to be reported, and the math is unfriendly because the rate stacks on top of your salary.

Cost basis follows the moving average method by default; the total average method is available by election (must be filed in advance). Once elected, the method applies for the foreseeable future; switching back is not straightforward. Tools like Cryptact (Japan-focused) and Koinly handle both methods.

The Mt. Gox legacy still affects some long-time Japanese holders: the rehabilitation distributions through 2024-25 returned BTC and BCH to creditors after a decade. These returned coins generally have cost basis tied to the original 2014 acquisition, although the legal interpretation has been a subject of ongoing tax filings.

Banxa operates in Japan subject to PSA virtual currency exchange registration requirements and JVCEA membership where applicable.

Crypto prices are volatile. Japanese tax rates on crypto are punitively high relative to most major economies; this is a structural feature of the framework, not a bug. This is not financial advice.