Japan’s biggest financial institutions are quietly dismantling the correspondent banking system using stablecoins, and the infrastructure is already live.
Key Takeaways:
- Japan’s Payment Services Act, revised in June 2023 and updated through 2026, created the world’s strictest stablecoin issuer rules.
- Project Pax, backed by MUFG, SMBC, and Mizuho, targets 1 trillion yen in B2B stablecoin issuance by 2028.
- JPYC became the world’s first fully regulated yen-pegged stablecoin under a Type II license in October 2025.
The Most Important Crypto Standards Nobody Is Talking About
While U.S. regulators spend years sorting out jurisdictional authority and European regulators iron out MiCA compliance, Japan moved. The country revised its Payment Services Act (PSA) in June 2023, classifying fiat-pegged stablecoins as Electronic Payment Instruments, and spent the next three years building an institutional-grade ecosystem around that decision. As of April 2026, stablecoins in Japan are not a retail product. They are national financial infrastructure.
The three-tiered issuer model the PSA created is what separates Japan’s approach from everyone else’s. Commercial banks, trust companies, and licensed fund transfer providers can each issue stablecoins, but each category carries strict reserve requirements. Trust issuers hold ring-fenced assets in bankruptcy-remote structures. Fund transfer providers hold 100% liquid reserves. Commercial banks issue deposit-backed tokens covered by deposit insurance.
A 2025 amendment allowed trust issuers to place up to 50% of backing assets in short-term instruments like Japanese Government Bonds, improving capital efficiency without loosening consumer protections. October 2025 marked a practical milestone: JPYC Inc. became the world’s first issuer of a fully regulated yen-pegged stablecoin after graduating from a prepaid payment instrument to a licensed Electronic Payment Instrument under a Type II funds transfer license.
The company has set a target of 10 trillion yen in circulation over three years. SBI Holdings and Startale Group followed with JPYSC, a trust bank-backed yen stablecoin managed by SBI Shinsei Trust Bank, announced in late 2025 and targeting a Q2 2026 launch. Institutional players get bankruptcy-remote asset protection. The corporate treasury teams responsible for those decisions get to sleep at night.
The B2B settlement story is where the numbers start to matter. Traditional international wire transfers carry 2 to 7% all-in costs, including fees and foreign exchange spreads, and take three to five business days to clear. Stablecoin settlement compresses that to under 0.5% in costs and settles in under three minutes, 24 hours a day.
Project Pax, the joint initiative between Mitsubishi UFJ (MUFG), Sumitomo Mitsui (SMBC), Mizuho, and blockchain middleware firm Datachain, is targeting 1 trillion yen (roughly $6.5 billion) in stablecoin issuance by 2028. The platform connects more than 300,000 corporate clients across the combined megabank customer base. Mitsubishi Corporation is already using Progmat-issued stablecoins for settlements between its domestic headquarters and overseas subsidiaries.
The architecture behind Project Pax is deliberate. Corporate clients do not touch a crypto wallet. They initiate payments through existing banking dashboards via SWIFT’s API framework. On the backend, the megabanks intercept that call and settle the value instantly using stablecoin smart contracts routed across Ethereum, Polygon, Avalanche, and Cosmos.
The SWIFT system remains in place as the client-facing interface. The stablecoin does the actual moving of value. Banks eliminate the cost of maintaining nostro and vostro accounts. The client’s accounting software never changes.
Overcoming Trade Bottlenecks in Emerging Markets
For companies trading with emerging markets, the PSA framework also created a practical workaround for a persistent problem. STANDAGE Inc. partnered with Progmat to build a B2B trade settlement wallet designed for Japanese firms dealing with regions where letters of credit face geopolitical or banking constraints. Atomic, real-time settlement replaces the legacy trade finance bottleneck.
The foreign stablecoin story adds another layer. USDC was the first foreign stablecoin approved for Japanese exchanges, after Circle established a regulated joint venture with SBI Holdings, Circle SBI Japan KK, operating through SBI VC Trade. Japanese companies can now execute cross-border vendor payments in digital dollars without maintaining multiple foreign fiat accounts. The U.S. dollar remains the language of global trade. Circle and SBI Holdings gave Japanese enterprises a compliant pipeline into it.
Remittances follow the same pattern. Japan‘s growing foreign workforce, particularly from Southeast Asia, creates consistent outbound money flows. Traditional retail remittance operators charge spread fees that can consume 5 to 10% of a paycheck. Licensed intermediary wallets built under the relaxed 2025 Amendment Act licensing allow workers to use yen stablecoins, convert to dollar-pegged stablecoins on liquid decentralized exchanges, and route payments home for local fiat conversion at a fraction of a cent.
SBI Holdings‘ decade-long relationship with Ripple through SBI Ripple Asia has extended this infrastructure across corridors to South Korea, India, and the Philippines. The Korea-Japan corridor test in late 2025 is worth noting. K Bank, Shinhan Bank, and Nonghyup Bank completed verification for Project Pax’s cross-border remittance capabilities. Korean blockchain entities signed agreements with JPYC Corporation.
The pilot tested B2B and B2C remittances using JPYC across that corridor, and the goal is explicit: regional Asian economies routing trade and remittances without the U.S. dollar as an intermediary. SBI Holdings President Yoshitaka Kitao framed it plainly in December 2025. He described the move to a token economy as “an irreversible societal trend.”
The infrastructure Japan has built between 2023 and 2026 makes that statement less like corporate optimism and more like an accurate read of what has already happened.
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