Japan is preparing to study a blockchain settlement system capable of processing stock and government bond transactions around the clock, with a development plan expected in early 2027. According to Nikkei, the Financial Services Agency, Ministry of Finance, Bank of Japan and participating financial institutions are expected to establish a study group during summer 2026. The group would aim to complete an initial development plan in early 2027, with operations potentially beginning during the 2030s. However, none of the three government institutions had published a formal announcement confirming the reported study group when checked Wednesday.
Japan's blockchain bond market transformation comes as the country faces unprecedented debt service challenges. According to Kyodo News, the finance ministry expects debt-servicing costs to rise 17% to a record 36.64 trillion yen ($230 billion) in the next fiscal year, driven by plans to set the assumed interest rate at a 29-year high of 3.8%. This surge in debt costs adds significant pressure to Japan's already strained finances, creating urgency for the blockchain modernization project that could reduce settlement times to near zero. The total value of budget requests from government ministries and agencies for fiscal 2027 is expected to exceed 130 trillion yen for the first time, up sharply from about 122 trillion yen in the current fiscal year.
The proposed blockchain infrastructure would address significant settlement delays in Japan's financial markets. Japanese stock transactions currently use a T+2 settlement cycle, meaning cash settlement occurs two business days after a trade, while Japanese government bond transactions generally settle on the following business day. The new blockchain system would connect securities transfer and corresponding cash payment more closely, allowing investors to gain access to sale proceeds faster and potentially reinvest funds almost immediately. This represents a leapfrog over previous improvements, as JGB settlement was reduced to one day in 2018 and stocks to two days in 2019, while the US cut stock settlement to one day in 2024.
The blockchain initiative builds on existing Bank of Japan experiments in wholesale central bank digital currency. Governor Kazuo Ueda said in March that the central bank was testing settlements using commercial banks' current account deposits on blockchain infrastructure. BOJ Executive Director Kazushige Kamiyama later described this work as examining tokenized central-bank account deposits, sometimes called wholesale central bank digital currency. The sandbox project is examining how blockchain networks could connect with existing systems, with potential use cases including domestic interbank transfers and securities settlement. This work remains separate from Japan's retail digital-yen pilot, with the government continuing technical research on a retail central bank digital currency.
Japan's private financial sector has already developed blockchain platforms for regulated securities, demonstrating practical implementation capabilities. Progmat recently migrated ₹3,760 crore ($452 billion) in managed tokenized securities to a dedicated Avalanche network. SBI Holdings and Startale are building Strium, a blockchain designed for round-the-clock tokenized securities trading, with a public test network planned for 2026. Additionally, Japan's three largest banks are separately preparing a shared yen stablecoin framework, targeting live transactions by March 2027 and following an FSA-supported corporate payment pilot. These private systems demonstrate the issuance and transfer of tokenized assets, providing practical examples for the government's broader infrastructure proposal.
