Japan Is Moving Crypto Under Securities Law: A Practitioner's Read on the FIEA Migration
Introduction
The most consequential change to Japanese crypto regulation since the sector was first licensed in 2017 is sitting in the Diet. A bill that would move crypto-assets out of the Payment Services Act (資金決済法, Shikin Kessai-hō) and into the Financial Instruments and Exchange Act (金融商品取引法, Kin'yū Shōhin Torihiki-hō — commonly "FIEA") passed the House of Representatives on 11 June 2026 and is now before the House of Councillors. It has not yet become law.
That timing is exactly why it is worth reading now. The shape of the new regime is settled in its essentials, but the subordinate rules that will decide most practical questions are still to be written. For a foreign operator weighing a Japan entry, this is the window in which strategy still matters.
What the Bill Actually Does
The bill did not appear from nowhere. The Financial Services Agency (FSA) published a discussion paper on the regulatory treatment of crypto-assets in April 2025, and the Financial System Council's Working Group on Crypto-asset Systems issued its report in December 2025 (the FSA published an English version in February 2026). The amendment bill followed on 10 April 2026.
Its core elements:
Migration from the Payment Services Act to the FIEA
Since 2017, crypto-asset exchanges in Japan have been regulated as a species of payment service provider. The bill repositions crypto-assets as financial instruments and moves the business regulation into the FIEA. The registration category is reorganized into a "crypto-asset trading business" (暗号資産取引業, Angō Shisan Torihiki-gyō), with conduct rules built on the FIEA's investor-protection architecture rather than the payments framework.
Two boundary points deserve attention. First, crypto-assets come under the FIEA as a distinct category, not as securities (有価証券, yūka shōken): the bill adapts securities-market rules — disclosure, insider trading, conduct regulation — to crypto-assets, rather than extending the definition of securities to cover them. Second, the migration does not sweep in everything: stablecoins structured as electronic payment instruments remain under the Payment Services Act, and NFTs generally stay outside uniform financial regulation.
Insider trading rules for crypto
The current FIEA contains no insider trading prohibition for crypto-assets — a gap that has been visible for years. The bill closes it with a regime modeled on the framework for listed securities: persons with special access to material non-public facts about a covered crypto-asset are prohibited from trading before those facts are published. Exchange listings, issuer decisions, and similar events will finally have a market-conduct rulebook behind them.
A two-track information regime
The working group's design distinguishes between fundraising-type assets, where an identifiable issuer raises money and owes periodic disclosure, and non-fundraising-type assets such as Bitcoin, where no accountable issuer exists and information duties fall primarily on the trading platforms that handle the asset. Issuers of covered assets will face annual disclosure obligations — a meaningful shift for token projects that have treated Japan as a listing venue without ongoing reporting duties.
Harder enforcement against unregistered operators
The bill strengthens the tools and penalties available against unregistered actors soliciting Japanese residents. Foreign platforms that have relied on a loose reading of the solicitation perimeter will need to watch this area with considerably greater caution going forward.
What is not in the bill
The widely reported move to a flat 20% tax rate on crypto gains is not part of this legislation. Tax treatment runs on a separate track through the annual tax reform process, and while the direction has been signaled, it follows its own timeline. Conflating the two — as much of the coverage does — misstates where each stands.
The Case For and Against
The case for the migration is straightforward. Japan's regime has been strict on custody and exchange operations since the Mt. Gox and Coincheck failures, but almost silent on market conduct. Disclosure, insider trading, and manipulation rules are the price of admission for institutional capital, and they are what makes products like crypto ETFs conceivable within the Japanese framework. Reclassification also gives serious operators something they have quietly asked for: a rulebook that treats them as financial firms rather than payment curiosities.
The case against is equally real. FIEA-grade compliance can be expensive, and the cost lands hardest on smaller issuers and early-stage projects, some of which will simply not launch in Japan. Disclosure and insider trading rules were originally built for securities, which have identifiable issuers; many crypto-assets do not, and applying these rules to such assets will raise hard questions in practice.
My Read
I think the migration is the right call, and I say that as someone who advises the firms that will bear its costs.
Japan's crypto regime has been asymmetric for years: world-class strictness at the custody layer, near-silence at the market-conduct layer. That asymmetry protected consumers from exchange failures while leaving them exposed to everything the securities laws were invented to address. The bill fixes the asymmetry in the only direction that was ever politically and practically available.
For foreign operators, the practical meaning is this: the gate gets higher, but it also gets clearer. Under the current regime, the hard questions — what you may list, what you must tell the market, what conduct crosses the line — are answered by self-regulatory practice and administrative guidance that is difficult to read from outside Japan. Under the FIEA, they will increasingly be answered by statute and published ordinance. Higher-but-clearer favors well-run firms. It is the ambiguous regimes that quietly favor incumbents and punish entrants.
The window before entry into force is the strategic asset. The new regulatory regime is expected to take effect no earlier than fiscal 2027, and the firms that treat that date as a deadline to react to will arrive late to a market whose institutional phase will already be underway. The firms that use the interim period — while the cabinet orders are drafted and the industry associations reposition — to design their registration and product strategy will arrive precisely when the institutions do.
What Foreign Operators Should Do Now
- Map your current and planned Japan-facing activities against both the existing Payment Services Act categories and the coming FIEA architecture. The migration changes which questions matter, not just the answers.
- If you are considering a registration, get advice on sequencing. Whether to apply under the current regime and transition, or to time your application to the new one, is a genuine strategic decision with arguments both ways depending on your product mix.
- If you issue or plan to issue a token that Japanese platforms might handle, start treating disclosure as a design constraint now. Annual reporting obligations reward projects whose documentation was built for them.
- If you operate offshore and touch Japanese users, reassess your solicitation analysis. The enforcement upgrade against unregistered operators is aimed at exactly the arrangements that have survived on benign neglect.
- Watch the House of Councillors vote and, more importantly, the subordinate legislation that follows. The statute sets the frame; the ordinances will decide your compliance bill.
The bill's passage is not certain until it happens, and the details below the statutory level are genuinely open. That is not a reason to wait. It is the reason the next twelve months are when Japan strategy gets decided.
This article is provided for general informational purposes only and does not constitute legal advice. The bill discussed here has not been enacted as of the date of publication, and its content may change. If you are assessing what Japan's regulatory transition means for your business, get in touch — we advise foreign crypto and fintech operators on Japanese financial regulation.