Japan DeFi Regulation Bill — "Regulatory Capture" as a
The Japanese government's move to submit a regulatory bill to the Diet in 2026, including mandatory KYC for DeFi projects, sets a precedent for the world's third-largest economy to cut into the core anonymity of decentralized finance, potentially triggering a global regulatory domino effect.
── Understand in 3 points ─────────
- • The Japanese government plans to submit a regulatory bill to the Diet in early 2026, including mandatory KYC (Know Your Customer) for DeFi (Decentralized Finance) projects.
- • The bill is being drafted under the leadership of the Financial Services Agency (FSA) and is expected to be a comprehensive framework involving amendments to the Payment Services Act and the Financial Instruments and Exchange Act.
- • For DeFi projects that prioritize anonymity, mandatory KYC could be a fundamental blow that shakes the core of their business model.
── NOW PATTERN ─────────
Within a "regulatory capture" structure where the interests of the Financial Services Agency and existing financial institutions align, a path-dependent pattern of "incident → stricter regulation" has been activated since the Mt. Gox incident, leading to an institutional backlash against DeFi innovation.
── Probabilities and Responses ──────
• Base case 55% — Content of amendment discussions at the FSA's council, trends of the ruling party's working group on crypto asset policy, results of informal consultations between JCBA and FSA, whether it will be deliberated concurrently with tax reform bills.
• Bull case 20% — Expression of opposition from the Ministry of Economy, Trade and Industry (METI), policy shift by the ruling party ahead of the House of Councillors election, changes in US DeFi regulatory policy, increased political donations and lobbying activities by industry associations.
• Bear case 25% — Occurrence of a new large-scale hacking incident during bill deliberation, escalation of North Korea's military provocations, additional improvement recommendations from FATF, intensification of anti-DeFi campaigns by domestic media.
📡 THE SIGNAL — What Happened
Why it matters: The Japanese government's move to submit a regulatory bill to the Diet in 2026, including mandatory KYC for DeFi projects, sets a precedent for the world's third-largest economy to cut into the core anonymity of decentralized finance, potentially triggering a global regulatory domino effect.
- Regulation — The Japanese government plans to submit a regulatory bill to the Diet in early 2026, including mandatory KYC (Know Your Customer) for DeFi (Decentralized Finance) projects.
- Regulation — The bill is being drafted under the leadership of the Financial Services Agency (FSA) and is expected to be a comprehensive framework involving amendments to the Payment Services Act and the Financial Instruments and Exchange Act.
- Industry Trends — For DeFi projects that prioritize anonymity, mandatory KYC could be a fundamental blow that shakes the core of their business model.
- Industry Trends — In response to stricter regulations, some projects have begun considering relocation to overseas hubs with more lenient regulations, such as Singapore and Dubai.
- Industry Reaction — The Japan Cryptoasset Business Association (JCBA), an industry group, has expressed concerns about stifling innovation and is calling for phased implementation.
- International Trends — The EU's MiCA (Markets in Crypto-Assets Regulation) will be fully enforced in December 2024, and Japan's regulations are aligned with this international trend.
- Market — The trading volume of crypto assets in Japan is expected to reach approximately 40 trillion yen in 2025, with DeFi-related transactions also rapidly increasing.
- Politics — Following the change in government in 2025, the policy of strengthening financial regulation has accelerated, and DeFi regulation is positioned as part of this.
- Technology — The bill is considering provisions that would impose certain responsibilities on developers and operators of smart contracts.
- Security — Crypto asset theft incidents by North Korea's Lazarus Group have occurred frequently in Japan, strengthening the political legitimacy of enhancing anti-money laundering measures.
- Taxation — The regulatory bill is being discussed in conjunction with crypto asset tax reform (introduction of separate taxation), forming a "carrot and stick" policy package.
- International Cooperation — Improvement recommendations for Japan's crypto asset regulations were issued in FATF's (Financial Action Task Force) 2025 mutual evaluation, serving as a direct catalyst for the bill's submission.
To understand Japan's strengthened DeFi regulation bill, it is necessary to grasp the historical context that Japan is a country that has accumulated the most advanced, yet also the most painful, experience in crypto asset regulation globally.
The Mt. Gox incident in 2014 is the origin of crypto asset regulation in Japan. This incident, where Mt. Gox, then the world's largest Bitcoin exchange, lost approximately 850,000 BTC and collapsed, revealed to the world the risks posed by a regulatory vacuum. Learning from this lesson, the Japanese government enacted the revised Payment Services Act in 2017, introducing a registration system for crypto asset exchanges ahead of other countries. At this point, Japan established its position as a "regulatory leader," but at the same time, it faced the eternal challenge of balancing innovation and regulation.
The Coincheck incident in 2018 (a leak of NEM worth approximately 58 billion yen) showed that a registration system alone was insufficient. The Financial Services Agency strengthened on-site inspections and issued business improvement orders to multiple exchanges. This experience became a decisive turning point, prompting Japanese regulatory authorities to shift from "post-incident response" to "preventive regulation."
However, the explosive growth of DeFi since 2020 has presented new challenges that traditional regulatory frameworks cannot address. In many cases, DeFi protocols do not have a clear "operator," making it difficult to identify a "business operator as a regulated entity," which is the premise of traditional financial regulation. Protocols like Uniswap and Aave operate autonomously via smart contracts, and no one "operates" them. This fundamental problem of "absence of a regulated entity" has troubled regulatory authorities worldwide.
In an international context, FATF clarified the need for DeFi regulation in its revised "Guidance for a Risk-Based Approach to Virtual Assets and Virtual Asset Service Providers" in 2021, urging countries to respond. The EU enacted MiCA (Markets in Crypto-Assets Regulation) in 2023 and fully implemented it in December 2024. In the US, the SEC (Securities and Exchange Commission) has been taking successive enforcement actions against DeFi protocols, effectively advancing regulation.
Several factors converge behind Japan's decision to move forward with DeFi regulation at this time. First, the direct catalyst was the improvement recommendations received in the 2025 FATF mutual evaluation regarding the crypto asset sector. FATF's assessment directly impacts Japan's credibility in international finance, making it politically impossible to ignore. Second, money laundering and fund theft using DeFi protocols by North Korea's Lazarus Group intensified from 2024 to 2025, increasing the legitimacy of stricter regulation from a national security perspective. North Korea's involvement was suspected in the 2024 DMM Bitcoin incident (a leak of approximately 48.2 billion yen), which sparked significant debate in the Diet.
Third, there is a shift in Japan's domestic political dynamics. Following political changes in 2025, forces advocating for stronger financial regulation gained influence. The lobbying capacity of the crypto asset industry remains weak compared to the traditional financial industry, creating a structure where the interests of regulatory authorities and existing financial institutions tend to align.
Fourth, and most structurally, Japanese financial authorities have a strong institutional motivation to maintain a "manageable market." The anonymity and decentralization of DeFi are inherently incompatible with a centralized regulatory and supervisory system. This is not merely a technical issue but a fundamental question of power: "To what extent can the state control the financial system?"
This bill could mark the third turning point in Japan's crypto asset regulatory history. If the first turning point was the introduction of the exchange registration system in 2017, and the second was the strengthening of crypto asset exchange business regulations in 2020, then the current DeFi regulation signifies a qualitative shift, expanding the scope of regulation from CeFi (Centralized Finance) to DeFi (Decentralized Finance).
The delta: The Japanese government's move to submit a DeFi regulation bill to the Diet in 2026 signifies an expansion of regulatory scope from traditional CeFi (exchanges) to DeFi (protocols), posing a fundamental question of how far the state can exert control over systems that claim to be "decentralized." This is a structural turning point.
🔍 BETWEEN THE LINES — What the News Isn't Saying
While FATF compliance and investor protection are officially emphasized, the essence of this bill is a power struggle over "who controls Japan's digital financial infrastructure." The Financial Services Agency perceives DeFi's permissionless model as an "uncontrollable domain" beyond its supervisory authority, and mandatory KYC is an institutional means to bring that domain under its jurisdiction. Simultaneously, existing major crypto asset exchanges and megabanks are attempting to reset competitive conditions in their favor against emerging projects through DeFi regulation. The simultaneous proposal of tax reform (separate taxation) is a calculated political strategy to avoid outright industry opposition, designed as a "carrot and stick" package.
NOW PATTERN
Regulatory Capture × Path Dependency × Backlash
Within a "regulatory capture" structure where the interests of the Financial Services Agency and existing financial institutions align, a path-dependent pattern of "incident → stricter regulation" has been activated since the Mt. Gox incident, leading to an institutional backlash against DeFi innovation.
Intersection of Dynamics
The three dynamics of "regulatory capture," "path dependency," and "backlash" do not operate independently but form a self-reinforcing system that mutually strengthens each other.
The "incident → stricter regulation" cycle created by path dependency instills an institutional conviction in regulatory authorities that "more stringent regulation is necessary." This conviction tends to prioritize the opinions of existing players when designing new regulations, facilitating "regulatory capture." This is because, for regulatory authorities, "operators already complying with regulations" appear as trustworthy partners, while "DeFi projects still outside regulation" are seen as potential sources of risk.
This "regulatory capture" structure determines the direction and intensity of the backlash. Regulatory designs that align with the interests of existing players tend to excessively restrict the anonymity and decentralization of DeFi. This goes beyond mere investor protection or AML measures and has the effect of institutionally stifling the technological innovativeness of DeFi itself.
Furthermore, what is crucial is the possibility that these three dynamics create a "self-fulfilling prophecy" cycle: stricter regulation → overseas exodus of DeFi projects → only large players capable of regulatory compliance remain domestically → regulatory authorities self-justify by thinking "regulation was indeed necessary" → further stricter regulation. If this cycle begins, Japan's DeFi ecosystem will transform into a "managed garden," losing its function as a space for permissionless innovation.
However, there are also forces that act as brakes on this self-reinforcing cycle. The "carrot" policy of crypto asset tax reform (introduction of separate taxation) serves to mitigate the "stick" of stricter regulation. Additionally, in the context of international regulatory competition, if Japan adopts excessively strict regulations, the overseas exodus of the industry will become visible, incurring political costs. The existence of this "exit" acts as a natural check against the regulatory pendulum swinging too far.
📚 PATTERN HISTORY
2017-2018: Introduction of Crypto Asset Exchange Registration System under Japan's Revised Payment Services Act
Pioneering regulatory introduction → Short-term industry restructuring → Medium-to-long-term market maturation
Structural Similarities with the Current Situation: Pioneering regulation leads to short-term player attrition but promotes institutional investor entry and market expansion in the medium to long term. However, the quality of regulatory design significantly influences the outcome.
2023-2024: Enactment and Implementation of EU MiCA (Markets in Crypto-Assets Regulation)
Introduction of comprehensive regulation → Approximately 25% of projects relocate outside the EU → Expansion of market share for regulation-compliant projects
Structural Similarities with the Current Situation: The introduction of a large-scale regulatory framework inevitably leads to some industry outflow, but it also has a dual nature of enhancing the "legitimacy" of remaining players and attracting new capital inflows.
2013-2015: US FinCEN (Financial Crimes Enforcement Network) Mandates Registration for Crypto Asset Businesses
Regulatory introduction → Temporary decline in Bitcoin price → Emergence of compliance industry → Long-term market growth
Structural Similarities with the Current Situation: Regulation causes short-term market shocks but creates new industries like "RegTech" (Regulatory Technology) and enhances the resilience of the entire ecosystem.
1999-2000: Introduction of Internet Banking Regulations through Amendments to Japan's Banking Act
"Extended application" of existing laws to new technologies → Temporary stagnation of innovation → Rapid growth after regulatory adaptation
Structural Similarities with the Current Situation: When existing legal frameworks are applied to new technologies, friction arises during the transitional period, but if regulatory predictability is secured, technological adoption accelerates.
2008-2010: Strengthening of Derivatives Regulation Post-Lehman Shock (Dodd-Frank Act)
Financial crisis → Large-scale regulatory strengthening → Increased regulatory compliance costs → Oligopolization by major financial institutions
Structural Similarities with the Current Situation: Post-crisis regulatory strengthening tends to replicate the "regulatory capture" pattern, reinforcing the market dominance of large players through increased compliance costs.
Patterns Revealed by History
A consistent pattern revealed by historical precedents is the ambiguity that "the introduction of regulation is accompanied by short-term industry attrition but leads to market maturation and expansion in the medium to long term." However, this positive outcome is not automatically achieved. The quality of regulatory design—specifically, sufficient transition periods, adherence to the principle of proportionality (staged regulation according to risk), and consistency with international regulations—decisively influences the outcome.
The precedent of EU MiCA is particularly suggestive. The fact that approximately 25% of DeFi projects relocated outside the EU demonstrates that the cost of regulation is clear. However, it is also true that capital inflows from institutional investors into regulation-compliant projects increased, indicating the existence of a "legitimacy premium brought by regulation."
The precedent of the Dodd-Frank Act shows the most alarming pattern. Post-crisis regulatory strengthening ultimately promoted the oligopolization of major financial institutions, solidifying the "regulatory capture" structure. If Japan's DeFi regulation follows this path, the crypto asset market will be positioned as an "extension" of the existing financial system, and DeFi's inherent potential for financial inclusion and innovation promotion will be lost.
🔮 NEXT SCENARIOS
The DeFi regulation bill will be submitted to the ordinary Diet session in 2026, but due to industry backlash and cautious opinions within the ruling party, deliberations will proceed with significant amendments to the original draft. The most likely scenario is that the bill is submitted but not passed during the Q1 (January-March) 2026 session, leading to continued deliberation. Specifically, the scope of mandatory KYC will likely be limited to "front-end operators of DeFi projects offering services to Japanese residents," with regulation of the protocols (smart contracts) themselves being postponed. The transition period will be extended from the initial proposal of 1 year to 2-3 years, allowing for phased implementation. Tax reform (separate taxation for crypto assets, 20% tax rate) will be decided concurrently, acting as a "carrot" for the industry. This will prevent outright opposition to the bill from the industry. The market impact will be limited, with Japanese crypto asset trading volume temporarily decreasing by 5-10%, but institutional investor entry will gradually progress as regulatory predictability is secured, leading to a recovery trend by 2027. Some projects that were considering overseas relocation will decide to remain after reviewing the amended regulations. However, projects entirely dependent on anonymity will be forced to withdraw from the Japanese market.
Implications for Investment/Action: Content of amendment discussions at the FSA's council, trends of the ruling party's working group on crypto asset policy, results of informal consultations between JCBA and FSA, whether it will be deliberated concurrently with tax reform bills.
Industry lobbying efforts succeed, leading to the postponement of the DeFi regulation bill's submission until late 2026 or later, or a significant relaxation of the bill's content, effectively limiting it to a framework of "self-regulation." Several conditions could lead to this scenario. First, if the ruling party is politically motivated to avoid backlash from crypto asset holders (an estimated several million voters) ahead of the 2026 House of Councillors election. Second, if the Ministry of Economy, Trade and Industry (METI), which advocates for Web3 promotion, objects to the FSA's stricter regulatory stance, and inter-ministerial conflict hinders the bill's progress. Third, if the international approach to DeFi regulation shifts (e.g., the US pivots to deregulation), prompting Japan to relax its regulations in the name of "international cooperation." In this scenario, Japan expands its "regulatory sandbox" to provide room for experimentation for DeFi projects, adopting a phased and flexible regulatory approach. Separate taxation for crypto assets is introduced ahead of schedule, revitalizing the Japanese crypto asset market. Inflows of projects and VCs (Venture Capital) from overseas to Japan increase, strengthening its position as an "Asian Web3 hub." Domestic DeFi TVL (Total Value Locked) exceeds 3 trillion yen by the end of 2026. However, this scenario carries significant risks. The absence of regulation could lead to new hacking incidents or fraud, making a backlash towards stricter regulation inevitable.
Implications for Investment/Action: Expression of opposition from the Ministry of Economy, Trade and Industry (METI), policy shift by the ruling party ahead of the House of Councillors election, changes in US DeFi regulatory policy, increased political donations and lobbying activities by industry associations.
The DeFi regulation bill is swiftly passed in Q1 2026 in a strict form close to the original draft, and enforced with a short transition period (6 months to 1 year). Furthermore, the scope of the bill could expand beyond front-end operators to include smart contract developers and liquidity providers. The biggest trigger for this scenario would be the occurrence of a new large-scale hacking incident or a terror financing incident exploiting DeFi during the bill's deliberation. If public sentiment shifts to support stricter regulation, calls for cautious deliberation would be suppressed. If North Korea's provocative actions escalate, DeFi regulation could emerge as an urgent issue from a national security perspective. The consequences of this scenario are severe. Over 50% of domestic DeFi projects would relocate to Singapore, Dubai, Switzerland, etc., effectively devastating Japan's DeFi ecosystem. The exodus of talented blockchain developers overseas would accelerate, significantly reducing the competitiveness of Japan's Web3 industry. Overall crypto asset market trading volume would decrease by 20-30%, with ripple effects on related industries (exchanges, wallets, NFT marketplaces, etc.). Internationally, Japan's strict regulations would be cited as a "negative example," leading other regulatory authorities to avoid similar approaches. Consequently, Japan risks "Galapagosization" of its crypto asset regulation, marginalizing itself from the global crypto asset ecosystem.
Implications for Investment/Action: Occurrence of a new large-scale hacking incident during bill deliberation, escalation of North Korea's military provocations, additional improvement recommendations from FATF, intensification of anti-DeFi campaigns by domestic media.
Key Triggers to Watch
- Publication of the final report by the FSA's "Study Group on the Future of Digital and Decentralized Finance": January-February 2026
- Submission of the DeFi regulation bill to the Diet (Cabinet decision): February-March 2026
- Start of bill deliberation in the ordinary Diet session and summoning of expert witnesses from industry stakeholders: March-May 2026
- Deliberation status of the crypto asset tax reform bill (introduction of separate taxation): March-June 2026
- Announcement of each party's crypto asset policy pledges for the 2026 House of Councillors election: April-June 2026
🔄 TRACKING LOOP
Next Trigger: FSA's "Study Group on the Future of Digital and Decentralized Finance" final report — scheduled for publication in January-February 2026. This report's content will be the most crucial document determining the specific scope and strictness of the bill.
Continuation of this Pattern: Tracking Theme: Japan's DeFi Regulation Legislative Process — The next milestones are the bill's submission to the Diet in Q1 2026 and the concurrent progress of the crypto asset tax reform (separate taxation) bill.
>How do you read this? Participate in Prediction →