Japan is moving toward studying a blockchain-based system aimed at enabling instant cash settlement for stock transactions and Japanese government bonds at any time of day, a step that could reshape settlement infrastructure in the domestic financial markets.

According to local reports, Japan’s Financial Services Agency, the Ministry of Finance, and the Bank of Japan, along with financial institutions, plan to form a study group this summer. The group will determine how to build blockchain-based infrastructure, allocate responsibilities between public bodies and financial institutions, and then prepare a development plan by the beginning of 2027.

What does the plan propose?

The proposed idea is based on converting some of the deposits that banks hold in the Bank of Japan’s current accounts into digital tokens that can be traded on the blockchain, to be used for settlement between banks. In this way, the transfer of value could become faster and more flexible than with traditional systems.

This shift comes at a time when ordinary stock settlements in Japan are still carried out on a T+2 basis, while transactions in local government bonds are settled on a T+1 basis. The proposed system targets moving to instant cash settlement rather than waiting for the current settlement cycles.

Why does it matter to institutions and markets?

If the project receives official approval, it could begin operating at the start of the 2030s. This means Japan may open the door to a new institutional settlement model based on blockchain, which could affect the efficiency of financial infrastructure, compliance mechanisms, and how institutions handle interbank payments and securities settlement.

Including key regulators alongside the Bank of Japan and financial institutions suggests that the project is not viewed as merely a technical test, but rather as a potential path to redesign a sensitive part of the financial system. This makes it especially significant for the digital assets sector and institutional infrastructure projects.

Although the plan is still at the study stage, setting a timeline—from forming the working group this summer to preparing a development plan in 2027—clearly reflects seriousness in exploring the possibility of introducing blockchain into the core of Japan’s cash settlement operations.

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