The amendment to the Financial Instruments and Exchange Act would subject 105 cryptoassets to the same regulatory framework as stocks and bonds, ban insider trading, and cut the maximum tax rate on crypto gains from 55% to a flat 20%.
Japan's cabinet approved an amendment to the Financial Instruments and Exchange Act on 10 April that would reclassify cryptocurrency — including bitcoin and ethereum — as financial instruments on par with stocks, bonds, and derivatives. If ratified by the National Diet during the current session, the changes will take effect in fiscal year 2027.
The bill is the most consequential piece of crypto legislation to emerge from any G7 economy this year. It introduces an outright ban on insider trading for digital assets, requires annual disclosure from crypto issuers, and reclassifies the country's registered exchanges from "crypto asset exchange businesses" to "crypto asset trading businesses" — a semantic shift that carries real regulatory weight, subjecting them to the full compliance framework applied to traditional securities dealers.
Japan's Financial Services Agency plans to bring 105 individual cryptoassets under the new regime, effectively ending the country's long-standing treatment of crypto as a quasi-commodity subject to its own bespoke rules. The FSA first granted virtual currency exchange licences to 11 companies back in 2017, establishing one of the world's earliest regulatory frameworks for the industry. This bill doesn't dismantle that framework so much as absorb it into the mainstream financial architecture.
The tax implications alone could reshape how Japanese investors interact with crypto. Under current law, gains on digital assets are taxed as miscellaneous income at progressive rates reaching 55 per cent — a punitive structure that has driven Japanese retail trading volume offshore for years. The proposed bill would introduce a flat 20 per cent capital gains rate, aligned with the treatment of equities, along with a three-year loss carry-forward mechanism. For an investor sitting on unrealised gains, the difference between a 55 per cent and 20 per cent rate is the difference between selling and holding; the behavioural effects of this change, if enacted, should not be underestimated.
Penalties for non-compliance are being sharpened. Unregistered sellers could face prison terms of up to ten years — more than double some existing maximums — while the ceiling on fines rises from approximately ¥3 million ($18,800) to ¥10 million ($62,800). The message is clear: Japan wants institutional-grade markets, and it's prepared to enforce that standard with institutional-grade consequences.
Not everyone is celebrating. Industry representatives warned during consultation that the regulatory burden may prove excessive, pointing out that roughly 90 per cent of domestic exchanges are currently operating at a loss. Layering securities-grade compliance onto businesses that are already struggling to break even could accelerate consolidation — or simply push smaller operators out of the market entirely. The survivors would be larger, better-capitalised firms capable of absorbing the cost; whether that's good for competition or merely good for incumbents is a question the FSA hasn't publicly addressed.
Japan has, since 2017 when it officially recognised bitcoin as a legal payment method, positioned itself as a jurisdiction that takes crypto seriously without treating it as inherently suspect. This bill continues that tradition, but it also reflects a global shift. The European Union's MiCA framework has been operational for over a year; the United States is still debating market structure legislation that may not pass this session; Hong Kong has moved aggressively on stablecoin licensing. Japan's approach — folding crypto into existing securities law rather than building parallel structures — is arguably the most elegant of the lot, and the most demanding.
The Diet session runs through June. If the bill clears both chambers, Japan will become the first major economy to apply a unified financial instruments framework to crypto, complete with insider trading enforcement, standardised disclosure, and a tax regime that doesn't actively penalise participation. That combination doesn't exist anywhere else yet.
