What changed in Japan crypto rules?

TLDR

Japan is shifting crypto oversight from the Payment Services Act to the Financial Instruments and Exchange Act to treat tokens like investment products with stronger investor protections and enforcement (policy shift).

1. Exchanges will be required to hold liability reserves or insurance to compensate customers after hacks (liability reserves).
2. Stricter IEO disclosures, insider-trading style rules, and tools to crack down on unregistered platforms are planned (disclosure and enforcement).
3. Lawmakers are advancing a flat 20% tax on crypto gains, replacing rates that could reach ~55% as early as 2026 (flat tax proposal).

Deep Dive

1. Reclassify Under Securities Law

Japan plans to move crypto regulation from the payments-centric PSA to the FIEA, the securities regime, reflecting that most users now treat crypto as investments. This brings securities-like standards for trading conduct and disclosures to exchanges and issuers, improving clarity for investors and enforcement against misconduct (policy shift).

• Authorities cite speculative trading, larger investor inflows, and complex token issuance as drivers for the move, alongside explicit bans on insider trading and stronger tools against unregistered platforms (disclosure and enforcement).
• Some financial groups may be allowed to offer crypto via tightly supervised subsidiaries, aligning oversight with traditional markets (market structure context).

2. Exchange Safeguards and Reserves

Regulators will require exchanges to maintain dedicated liability reserves or qualifying insurance so customers can be compensated quickly after hacks or unauthorized outflows. Draft thinking benchmarks reserves to securities-firm standards, with ranges discussed in the billions of yen, and contemplates insurance as an alternative for smaller venues (liability reserves).

• The focus is on closing the gap between strong custody rules and the lack of legally mandated compensation funds, a lesson reinforced by incidents like the DMM Bitcoin breach and the long tail from Mt. Gox (liability reserves).
• Expect more rigorous oversight of third-party custody and wallet software providers as part of the broader protections (market structure context).

3. Flat 20% Tax Proposal

Lawmakers are advancing a change from progressive rates that could reach ~55% to a flat 20% tax on crypto gains, aligning with stocks and investment funds. Discussions point to inclusion in the 2026 tax reform package, with the goal of improving after-tax returns and keeping capital onshore (flat tax proposal).

• Media reports indicate political support and frame the change as part of a wider effort to normalize crypto in financial markets and encourage broader participation (flat tax proposal).

Conclusion

Japan is pivoting from a payments lens to an investment-market lens for crypto. Stronger disclosures, insider-trading prohibitions, and mandated exchange reserves target user protection, while a potential flat 20% tax would normalize crypto alongside equities. Together, these changes could improve trust and participation, though higher compliance costs may consolidate smaller venues.