日本のセキュリティトークン規制の解説

日本における暗号資産とトークン化証券への進化するアプローチ

Japan has long been considered one of the most forward-looking jurisdictions in digital asset regulation. Rather than attempting to suppress cryptocurrency adoption, Japanese regulators focused early on integration—recognizing crypto assets, licensing exchanges, and later adapting securities law to account for tokenized instruments.

この方針は、2つの主要法令である資金決済法と金融商品取引法（FIEA）への改正として結実しました。これらの変更により、経済的に証券と同様に機能するトークン化資産の規制方法が明確化され、初期のICO時代に存在した法的グレーゾーンが解消されました。

ICOがFIEAの下で証券になる場合

Under Japan’s amended framework, tokens that provide profit participation, dividend-like payouts, or claims on business performance are treated as securities, regardless of whether they are issued on a blockchain.

Once classified as a security, an offering falls squarely under FIEA requirements. This reclassification effectively transformed many ICO-style raises into regulated security token offerings (STOs), subjecting issuers to rules similar to those governing traditional equities and bonds.

Core Disclosure and Compliance Requirements

Issuers conducting security token offerings in Japan must meet extensive disclosure obligations. These include:

• Semiannual or periodic reporting obligations
• Detailed documentation of token mechanics, including issuance, transfer, and settlement processes
• Maintenance of governance and management records
• Clear explanations of investor rights embedded in the token

The explicit requirement to document token mechanics reflects regulators’ concern over the programmability and transferability of blockchain-based securities.

Why Japan Increased the Regulatory Burden

Japanese regulators have consistently highlighted secondary market risk as a primary concern. Unlike traditional securities, security tokens can be transferred rapidly, globally, and without intermediaries if not properly constrained.

This efficiency introduces compliance challenges, particularly around:

• Unauthorized peer-to-peer transfers
• Violations of private placement and solicitation rules
• Difficulty enforcing investor eligibility restrictions

To mitigate these risks, Japan encourages technical safeguards such as permissioned transfers, whitelisting, and restricted trading environments—features commonly implemented at the smart contract level.

トークン発行者向けのタイプIとタイプIIのライセンス比較

Japan’s framework distinguishes between different issuance models through licensing categories.

タイプII金融商品事業者

Companies issuing security tokens directly must typically register as Type II operators. This designation comes with strict governance, staffing, capital, and reporting standards designed to mirror traditional securities intermediaries.

タイプIブローカー・ディーラーモデル

Alternatively, issuers may partner with a licensed Type I broker-dealer. In this structure, the broker-dealer assumes responsibility for regulatory filings, disclosures, and token mechanics compliance, reducing the operational burden on the issuing company.

This flexibility allows smaller firms to access tokenized capital markets without building a full securities compliance operation in-house.

日本の包括的な暗号戦略

Japan formally recognized cryptocurrencies in 2017 and quickly followed with exchange licensing and consumer protection rules. By actively recruiting blockchain companies and providing legal clarity, the country positioned itself as a global hub for compliant digital asset innovation.

The decision to tightly regulate security tokens reflects a belief that long‑term adoption depends on trust, transparency, and institutional‑grade standards—not regulatory arbitrage.

日本のSTO枠組みが世界市場に示すシグナル

Japan’s regulatory posture demonstrates that tokenization does not eliminate the need for securities law—it modernizes its application. By embedding compliance expectations directly into token design and issuance processes, Japan created a model that balances innovation with investor protection.

For issuers and investors alike, Japan’s framework illustrates how blockchain-based capital formation can coexist with established financial regulation, offering a blueprint other jurisdictions continue to study.