The Japanese House of Representatives has passed an amendment to the Financial Instruments and Exchange Act (FIEA), reclassifying crypto assets from 'payment methods' to 'financial products.' The bill, which must still pass the House of Councillors, is expected to take effect as early as 2027 and marks a strong signal for structural growth in Japan's crypto market.

The most notable change is the normalization of the harsh tax regime. Starting in 2028, individual investment income, which was previously subject to miscellaneous income tax rates as high as 55%, will shift to a 20% flat tax rate, consistent with stock investments. Three-year loss carry-forward deductions will also be permitted. Furthermore, by abolishing the tax on corporate unrealized gains on year-end crypto holdings, Japan has established a practical measure to prevent domestic Web3 startups from fleeing to jurisdictions like Singapore or Dubai to avoid tax burdens.

Furthermore, obtaining status as a financial product removes the legal barriers that previously blocked the launch of spot crypto ETFs in Japan. However, these regulatory benefits will be provided within strictly controlled parameters. Since the 20% flat tax rate will apply only to 'designated crypto assets' on licensed Japanese exchanges, liquidity is expected to increasingly concentrate toward highly trusted, mainstream assets such as Bitcoin (BTC) and Ethereum (ETH).

This reform is a declaration that the benefits come with institutional-grade responsibilities. Stringent insider trading prohibitions and project disclosure requirements, comparable to those in the stock market, are being introduced. Japan's sophisticated hybrid strategy—aiming to attract institutional capital while enhancing market transparency and stability—will likely serve as an important reference point for global regulatory legislation in the future.