Japan Plans Blockchain Settlement System for Stock and Bond Transactions

Japan is gearing up to explore a blockchain settlement system that can process stock and government bond transactions 24/7, as per a report from Nikkei dated August 26.

The Financial Services Agency, Ministry of Finance, Bank of Japan, and participating financial institutions are set to form a study group in the summer of 2026. The group aims to finalize an initial development plan by early 2027.

As of Wednesday, none of the three government institutions had officially confirmed the establishment of the study group.

Japan’s Blockchain Settlement Plan Aims to Address Transaction Delays

Currently, Japanese stock transactions follow a T+2 settlement cycle, with cash settlement occurring two business days post-trade. Government bond transactions in Japan typically settle on the following business day.

The proposed blockchain infrastructure seeks to enhance the connection between securities transfer and cash payment, enabling investors to access sale proceeds quicker and potentially reinvest funds almost immediately.

The development plan will delve into the blockchain architecture, roles of public and private entities, and the implementation timeline of the system. International remittances could also be explored as a potential use case.

If formal approval is granted, the infrastructure could go live in the early 2030s, as reported by Nikkei. However, no final decision on implementation has been announced.

Real-time settlement can reduce counterparties’ exposure duration to each other. Yet, eliminating settlement delays poses new liquidity and operational requirements for market participants.

BOJ Explores Central-Bank Money on Blockchain

The reported initiative builds on ongoing Bank of Japan experiments, with Governor Kazuo Ueda mentioning in March the testing of settlements using commercial banks’ current account deposits on blockchain infrastructure.

The sandbox project is examining how blockchain networks can integrate with existing systems, with potential applications in domestic interbank transfers and securities settlement.

BOJ Executive Director Kazushige Kamiyama further elaborated on the examination of tokenized central-bank account deposits, supporting delivery-versus-payment settlement where securities and cash move simultaneously.

This work is distinct from Japan’s retail digital-yen pilot, as the BOJ continues technical research on a retail central bank digital currency without a final decision on issuance.

Tokenized Securities Operations in Japan

Japan’s private financial sector has already introduced blockchain platforms for regulated securities. Progmat recently shifted ¥452 billion in managed tokenized securities to a dedicated Avalanche network.

SBI Holdings and Startale are developing Strium, a blockchain tailored for round-the-clock tokenized securities trading, with a public test network slated for 2026.

While private systems focus on tokenized assets issuance and transfer, the government’s proposal aims for a broader scope encompassing mainstream Japanese stocks, government debt, and central-bank money.

Japan’s three major banks are also collaborating on a shared yen stablecoin framework, targeting live transactions by March 2027 after an FSA-backed corporate payment pilot.

Project Scope Determination in 2027

The upcoming study group must decide on creating a new blockchain, linking regulated networks, or integrating distributed ledgers with existing market systems in Japan.

Key considerations include governance, cybersecurity, transaction privacy, operational resilience, and protocols for rectifying erroneous or unauthorized transfers. Continuous support beyond current market hours would be necessary for 24/7 operation.

The next milestone would be an official announcement naming participating institutions and the study group’s mandate. The early-2027 development plan is expected to outline technical architecture, funding, testing phases, and potential legislative changes.

Until official documents are released, the proposed timetable and early-2030s launch remain aspirational goals rather than government-mandated deadlines.