Japan's DeFi Regulatory Bill — The Path-Dependent Trap
The world's third-largest economy is considering a bill to impose KYC obligations on DeFi. This move could fundamentally impact the international competitiveness of Japan's crypto asset industry and set a precedent for global regulatory standards.
── Understand in 3 points ─────────
- • The Financial Services Agency (FSA) is considering submitting a regulatory bill, including KYC (Know Your Customer) obligations for DeFi projects, in early 2026.
- • A proposal has emerged to classify DeFi protocols as "financial service intermediaries" within the framework of the revised Payment Services Act and Financial Instruments and Exchange Act.
- • The Japan Cryptoasset Business Association (JCBA) and DeFi-related startups have officially issued statements opposing the bill, arguing that "excessive regulation will lead to innovation outflow."
── NOW PATTERN ─────────
Japan's crypto asset regulation is caught in a path dependency cycle of "incident → fear → stricter regulation → industry outflow → relaxation", and the current DeFi regulation bill represents the latest "backlash" phase.
── Probability and Response ──────
• Base case 55% — Timing and content of the bill's submission to the Diet, presence/absence of web3 PT's amendment proposals, establishment of FSA's technical study group, results of industry public comments.
• Bull case 20% — Confirmation of House of Councillors election schedule and ruling party's election strategy, progress of crypto asset tax reform bill, presence/absence of DeFi-related incidents, US DeFi regulatory trends.
• Bear case 25% — Occurrence of DeFi-related hacking/fraud incidents in Japan, FSA's emergency statement, signs of rapid bill deliberation, announcement of withdrawal of overseas projects from the Japanese market.
📡 The Signal — What Happened
Why it matters: The world's third-largest economy is considering a bill to impose KYC obligations on DeFi. This move could fundamentally impact the international competitiveness of Japan's crypto asset industry and set a precedent for global regulatory standards.
- Regulatory Trends — The Financial Services Agency (FSA) is considering submitting a regulatory bill, including KYC (Know Your Customer) obligations for DeFi projects, in early 2026.
- Regulatory Trends — A proposal has emerged to classify DeFi protocols as "financial service intermediaries" within the framework of the revised Payment Services Act and Financial Instruments and Exchange Act.
- Industry Reaction — The Japan Cryptoasset Business Association (JCBA) and DeFi-related startups have officially issued statements opposing the bill, arguing that "excessive regulation will lead to innovation outflow."
- Market Size — Japan's domestic DeFi-related TVL (Total Value Locked) is estimated to exceed 200 billion JPY (as of end-2025), making it the third largest in the Asia-Pacific region.
- International Comparison — The EU's MiCA (Markets in Crypto-Assets) regulation will be fully enforced in December 2024, with gradual application to DeFi protocols underway.
- Political Background — The DMM Bitcoin incident in 2024 (hacking damage of approximately 48 billion JPY) directly triggered the push for stricter regulation.
- Technological Trends — The FSA is investigating the technical feasibility of on-chain KYC solutions (e.g., Soul Bound Token method).
- Taxation Related — Regulatory tightening is progressing in parallel with discussions on crypto asset tax reform (transition to separate taxation at 20%), which the industry perceives as a "carrot and stick" approach.
- Talent Outflow — Since 2023, approximately 40% of Japan-originated DeFi projects have relocated their legal entities to Singapore, Dubai, or Switzerland.
- International Cooperation — The FATF (Financial Action Task Force) will update its guidance on applying the Travel Rule to DeFi in 2025, requesting countries to respond.
- Within LDP — Opinions are divided between the Liberal Democratic Party's (LDP) Digital Society Promotion Headquarters web3 Project Team (PT) and the Financial Affairs Research Council regarding the intensity of regulation.
- Consumer Damage — The number of consumer consultations related to crypto assets in 2024 increased by 35% year-on-year to approximately 8,500 cases (National Consumer Affairs Center of Japan statistics).
To understand Japan's DeFi regulation bill, it is necessary to consider the historical context that Japan was one of the first countries in the world to move on crypto asset regulation.
The collapse of Mt. Gox in 2014 is the origin of Japan's crypto asset regulation. The incident, where the world's largest Bitcoin exchange at the time collapsed in Tokyo and approximately 850,000 BTC disappeared, instilled a deep lesson in Japanese financial authorities: "unregulated crypto assets are a national risk." This experience led to the introduction of a registration system for virtual currency exchange businesses under the revised Payment Services Act in 2017. Japan became the first country in the world to legally position crypto asset exchanges.
However, the Coincheck incident in 2018 (outflow of approximately 58 billion JPY worth of NEM) demonstrated that a registration system alone was insufficient. The FSA demanded stronger internal control systems and promoted the establishment of an industry self-regulatory organization (JVCEA). This "incident → stricter regulation" pattern is the archetype of path dependency in Japan's crypto asset policy.
Entering the 2020s, the rise of DeFi (decentralized finance) presented new challenges to regulators. Traditional regulation identified "operators" and imposed obligations on them. However, DeFi protocols theoretically have no "managers." Smart contracts like Uniswap operate autonomously, and no one "operates" them. This structural problem of "absence of a regulated entity" has long troubled the FSA.
A turning point came in 2024. The DMM Bitcoin incident, where it suffered hacking damage of approximately 48 billion JPY and was ultimately forced to cease operations, once again exposed the vulnerabilities of CeFi (centralized finance). Ironically, despite being a CeFi issue, this incident heightened distrust in crypto assets as a whole and increased momentum for comprehensive regulation, including DeFi. Around the same time, FATF updated its guidance on applying the Travel Rule to DeFi, intensifying international regulatory pressure.
On the other hand, the web3 national strategy launched by the Kishida administration (at the time) in 2023 put forth an ambitious vision to make Japan a hub for crypto assets and blockchain. The Liberal Democratic Party's Digital Society Promotion Headquarters web3 Project Team (PT) has actively promoted tax reform and DAO legalization. However, the FSA's traditional logic of "investor protection" and the web3 PT's logic of "innovation promotion" have directly clashed over DeFi regulation.
The international context is also important. The EU fully implemented its MiCA regulation by the end of 2024, leading the world in comprehensive crypto asset regulation. However, MiCA is cautious about DeFi, leaving room for "sufficiently decentralized" protocols to be exempt from regulation. In the US, jurisdictional disputes between the SEC and CFTC continue, and DeFi regulation is politically stalemated. Singapore and Dubai are attracting DeFi projects with relatively lenient regulations.
In this international competition, if Japan moves forward with strict KYC obligations, there is a risk that Japan-originated DeFi projects will accelerate their relocation overseas. In fact, as seen with the founder of Astar Network being based in Singapore, the "brain drain" of Japanese crypto entrepreneurs is already underway.
The dilemma facing the FSA is fundamental. If DeFi is not regulated, there will be a gap in consumer protection. However, if it is strictly regulated, it will negate the "permissionless" nature that is essential to DeFi, causing the technology itself to flee from Japan. This dilemma is qualitatively different from the virtual currency exchange business regulation in 2017. This is because exchanges were business entities with physical bases, but DeFi protocols are code, and code has no borders.
The delta: The essential change is that the FSA is attempting to force DeFi protocols into the existing framework of "financial service intermediaries." This is a "regulatory capture" that ignores the characteristics of the technology, and it represents the re-activation of the "incident → stricter regulation" path dependency pattern since Mt. Gox. The biggest risk is the structural distortion where the DMM Bitcoin incident, despite being a CeFi issue, is being used as a pretext for expanding regulation to DeFi.
🔍 Between the Lines — What the News Isn't Saying
The true reason the FSA is rushing DeFi regulation is not solely consumer protection. The FATF's mutual evaluation of Japan, scheduled for the latter half of 2026, is expected to include "progress in crypto asset regulation, including DeFi" as an assessment item. The FSA needs a "submission record" for the bill to achieve a high score in this evaluation. In other words, this bill is less about protecting domestic investors and more about political performance to get a good grade on an international regulatory compliance "report card." Furthermore, there are undercurrents of existing crypto asset exchanges (major CeFi players) attempting to use DeFi regulation as a means to solidify CeFi's competitive advantage through lobbying.
NOW PATTERN
Regulatory Capture × Path Dependency × Backlash
Japan's crypto asset regulation is caught in a path dependency cycle of "incident → fear → stricter regulation → industry outflow → relaxation", and the current DeFi regulation bill represents the latest "backlash" phase.
Intersection of Dynamics
The three dynamics of "regulatory capture," "path dependency," and "backlash" mutually reinforce each other in Japan's DeFi regulation, creating a unique policy dynamic.
First, path dependency enables regulatory capture. The FSA's "incident → regulation" pattern repeatedly provides regulators with opportunities to "not let a crisis go to waste." Despite the DMM Bitcoin incident being a CeFi issue, the FSA is using it as an opportunity to expand its jurisdiction over DeFi. While this is also a classic "crisis opportunism," by being embedded within a path-dependent cycle, it becomes a structural and repetitive phenomenon.
Next, the backlash opens a "window" for regulatory capture. The fact that the 2023 web3 promotion policy did not achieve expected results (companies continue to flow overseas, the market is not growing as much as expected) provides the stricter regulation proponents with the argument, "See, relaxation was useless." This is a mechanism where the political dynamics of backlash justify regulatory capture.
Furthermore, there is a recursive structure where regulatory capture creates new path dependency. If DeFi KYC obligations are legalized, that itself will become a new "fait accompli," making future deregulation difficult. Companies that invested in building KYC infrastructure will seek to recover their costs and advocate for maintaining the regulation. This increases the irreversibility of regulation and further strengthens path dependency.
On an international dimension, FATF pressure acts as an "external lock" on path dependency. If Japan is once positioned as a "leading country" in DeFi regulation, retreat would mean a loss of international credibility. This further narrows the room for backlash and solidifies path dependency towards stricter regulation.
The greatest risk at the intersection of these three dynamics is a situation where "technically unenforceable regulations become politically irreversible." Imposing KYC obligations on DeFi protocols fundamentally contradicts the design principles of protocols, raising doubts about their effectiveness. However, once legalized, a state where "there is a law but it is not enforced" is unsustainable for a rule-of-law state, forcing a move towards further regulatory tightening or the exclusion of the technology. This "trap of unenforceability" is the most dangerous outcome arising at the intersection of these three dynamics.
📚 Pattern History
2016-2017: Introduction of Japan's Virtual Currency Exchange Registration System
Following the Mt. Gox collapse (2014), the world's first crypto asset exchange regulation was introduced. Strict registration requirements led to the withdrawal of numerous small exchanges, consolidating the market among major players.
Structural similarity with the present: Advanced regulation streamlines the market but simultaneously excludes innovators. First movers in regulation do not necessarily gain a competitive advantage.
2018: FinTech Regulation under the US Dodd-Frank Act
Comprehensive financial regulations introduced after the 2008 financial crisis hindered the growth of FinTech startups. While large banks could absorb regulatory costs, it was fatal for startups.
Structural similarity with the present: A classic example of "regulatory capture" where regulations, ostensibly for consumer protection, effectively act as barriers to entry for existing players.
2019-2020: India's Crypto Asset Ban and Reversal
The Reserve Bank of India banned crypto asset transactions → Supreme Court overturned the ban with an unconstitutional ruling → regulation remained in an ambiguous state. During the ban, Indian developers and entrepreneurs flowed out to Dubai and Singapore.
Structural similarity with the present: Extreme regulation leads to the outflow of technology and talent, and even if reversed, the lost industrial base is not easily recovered.
2023-2024: Implementation of EU MiCA Regulation and DeFi Exemption
The EU introduced comprehensive crypto asset regulation MiCA but decided to exempt "sufficiently decentralized" DeFi protocols. This was a flexible response that respected the technical realities.
Structural similarity with the present: Successful regulation understands the characteristics of the technology and creates new categories rather than forcing it into existing frameworks.
1990s: Japan's Financial Big Bang and Re-regulation
The 1996 Financial Big Bang (large-scale deregulation) → financial scandals in the 2000s (e.g., Yamaichi Securities) → re-tightening of regulation. A classic cycle of "deregulation → problems arise → re-regulation".
Structural similarity with the present: Japanese financial regulation has a structural tendency to swing like a pendulum, and DeFi regulation should be understood as part of this pattern.
Patterns Revealed by History
The most important lesson revealed by historical patterns is that "the timing and quality of regulation determine the fate of an industry." Japan was a pioneer in regulating crypto asset exchanges in 2017, but its first-mover advantage was limited. High regulatory costs suppressed industry growth, and talent and capital instead flowed to regions with more lenient regulations like Singapore and Dubai.
India's case shows that even if extreme regulations (prohibitions) are reversed, a lost industrial ecosystem is not easily restored. The EU MiCA case demonstrates the possibility of "smart regulation" that understands the technical characteristics of DeFi and provides exemptions.
The prediction derived from these precedents is that Japan's DeFi KYC obligation bill "will be submitted as a bill," but "it is unlikely to be passed as originally drafted." Due to lobbying by the LDP web3 PT and industry groups, it is expected to eventually settle on a significantly amended compromise. However, this "process of debate" itself creates regulatory uncertainty, leading to a chilling effect on Japan's DeFi ecosystem in the short term. History repeatedly proves that "uncertainty" causes greater damage to innovation than the "content" of regulation.
🔮 Next Scenarios
The FSA will submit a DeFi regulation bill in the first half of 2026, but significant amendments will be made during the Diet deliberation process due to intense lobbying by the LDP web3 PT and industry organizations. The scope of KYC obligations will be limited not to "fully decentralized protocols" but to "DeFi services with substantial administrators." Specifically, a "front-end regulation" approach, which imposes KYC obligations on legal entities operating front-ends, is highly likely to be adopted. In this scenario, the bill will be submitted to the ordinary Diet session in 2026 (January-June), but passage by June will be difficult, leading to continued deliberation. During the deliberation process, public hearings on technical feasibility will be held, and opposition from blockchain engineers will be influential. Ultimately, an amended bill will be enacted in late 2026 or early 2027, but a preparation period of 1-2 years will be provided before enforcement. Market impact will be limited, but prolonged regulatory uncertainty will lead to continued overseas relocation of Japan-originated DeFi projects. If tax reform (separate taxation at 20%) progresses in parallel, there will be a slightly positive impact on investor sentiment.
Implications for Investment/Action: Timing and content of the bill's submission to the Diet, presence/absence of web3 PT's amendment proposals, establishment of FSA's technical study group, results of industry public comments.
A scenario where the submission of the DeFi regulation bill itself is postponed or shelved due to strong lobbying by the web3 PT and organized industry opposition. With the House of Councillors election in July 2026 approaching, political calculations within the ruling party will work to avoid criticism of "hindering innovation." For this scenario to materialize, the following three conditions must coincide. First, no large-scale DeFi-related incidents occur in the first half of 2026. If a new incident occurs, the dynamics of path dependency will again push for stricter regulation. Second, crypto asset tax reform (separate taxation) is legalized first, establishing a narrative that the government is "demonstrating a balanced stance towards crypto assets." Third, concerns grow that overseas DeFi regulations are moving towards "flexibility" rather than "tightening," making Japan's strict regulations an isolated case internationally. If the Bull scenario materializes, Japan's DeFi market will be revitalized, and some overseas-relocated projects will begin to consider returning. Japan's market TVL could exceed 300 billion JPY by the end of 2026. However, as the market expands without a clear regulatory framework, the risk of stricter future regulations remains.
Implications for Investment/Action: Confirmation of House of Councillors election schedule and ruling party's election strategy, progress of crypto asset tax reform bill, presence/absence of DeFi-related incidents, US DeFi regulatory trends.
A scenario where the FSA submits a strict DeFi regulation bill close to its initial draft, which is then passed by June 2026 after adjustments within the LDP. The most likely trigger for this scenario is the occurrence of a large-scale DeFi-related hacking or fraud incident in Japan in the first half of 2026. Specifically, an incident occurs where Japanese investors suffer tens of billions of JPY in damages via DeFi protocols, which is widely reported by the media. Public opinion rapidly shifts towards "stricter DeFi regulation," creating a political environment where even the web3 PT finds it difficult to voice opposition. The FSA swiftly submits the bill it "had prepared," and a crisis-driven Diet passes it through rapid deliberation. The impact of this scenario would be severe. DeFi protocols unable to comply with KYC obligations would be effectively excluded from the Japanese market, and Japan's DeFi TVL could halve. The overseas relocation of Japan-originated DeFi projects would accelerate, with the number of domestic DeFi developers decreasing by over 60% by 2027. Furthermore, Japan becoming a "precedent for DeFi regulation" would intensify FATF's pressure on other countries to adopt similar regulations, leading to a chain reaction of global DeFi regulatory tightening. Ironically, a paradoxical outcome is expected where consumer damage increases in unregulated grey zones rather than in Japan, which has the strictest regulations.
Implications for Investment/Action: Occurrence of DeFi-related hacking/fraud incidents in Japan, FSA's emergency statement, signs of rapid bill deliberation, announcement of withdrawal of overseas projects from the Japanese market.
Key Triggers to Watch
- Publication of the FSA's Financial System Council report on DeFi regulation: March-May 2026
- Announcement of counter-proposals or amendment proposals to the regulation bill by the LDP web3 PT: April-June 2026
- Occurrence of large-scale DeFi-related security incidents in Japan: Constant monitoring (if it occurs, the probability of the Bear scenario sharply increases)
- Submission and deliberation status of the crypto asset tax reform bill (separate taxation): 2026 ordinary Diet session (January-June)
- Publication of FATF's mutual evaluation results for Japan and recommendations related to DeFi: Second half of 2026
🔄 Tracking Loop
Next Trigger: FSA Financial System Council "Working Group on Crypto Assets, etc." Report — Scheduled for publication in April-May 2026. This is the most important document, as it will for the first time clarify the specific direction of DeFi regulation (front-end regulation or protocol regulation).
Continuation of this pattern: Tracking Theme: The Future of Japan's DeFi Regulation — The next milestone is the Financial System Council WG report (April-May 2026), followed by the presence/absence of bill submission to the ordinary Diet session (by June 2026).
🎯 Oracle Declaration
Prediction Question: Will a regulatory bill, including KYC obligations for DeFi projects, be passed by the Japanese Diet by June 30, 2026?
Judgment Deadline: 2026-06-30 | Judgment Criteria: To be judged by whether a bill containing provisions imposing KYC (Know Your Customer) obligations on DeFi protocols or their operators has been passed and enacted by both the House of Representatives and the House of Councillors by June 30, 2026. Mere submission of the bill does not count as "YES." Even if it is an amended bill, if it includes provisions for KYC obligations for DeFi, it will be judged as "YES."
How do you read it? Participate in the prediction →
