The Ministry of Economy and Finance will pilot blockchain-based deposit tokens for government procurement in Sejong City during Q4, part of a broader plan to digitise a quarter of all treasury fund executions by 2030.
South Korea's Ministry of Economy and Finance will pilot blockchain-based deposit tokens for government operational spending in the fourth quarter, replacing the traditional purchasing-card system with programmable digital money issued by nine of the country's largest commercial banks.
KB Kookmin, Shinhan, Woori, and Hana — the four institutions that collectively dominate Korean retail banking — are among the participants. The pilot will run in Sejong City, the administrative capital that houses most of the country's central government agencies, and was approved under the 2026 regulatory sandbox programme, which grants temporary exemptions from financial regulations that would otherwise block the issuance of tokenised deposits outside existing payment rails.
The mechanics are straightforward in concept, if not in implementation. Government agencies currently use dedicated purchasing cards — essentially corporate credit cards — to pay for operational expenses such as supplies, travel, and services. The new system replaces those cards with deposit tokens: digital representations of regular bank deposits, held on a distributed ledger but remaining liabilities of the issuing bank rather than a new form of currency. The tokens can be programmed with spending constraints — permitted categories, time windows, transaction limits — that are enforced automatically at the point of sale, eliminating the post-hoc auditing process that currently consumes significant bureaucratic resources.
Programmable spending constraints are the feature that separates deposit tokens from a simple digitisation of existing card payments. A government purchasing card can theoretically be used for anything, with compliance checked after the fact; a deposit token can refuse to settle a transaction that falls outside its parameters. In a bureaucracy that processes tens of billions of won in operational spending annually, the difference between preventing misuse and detecting it retroactively is substantial — both in terms of fiscal control and the staff hours devoted to auditing.
The infrastructure connects the blockchain layer to dBrain, the government's existing Digital Budget and Accounting System, creating an end-to-end audit trail for every won spent from the moment an agency receives its allocation to the moment a vendor confirms payment. Real-time compliance enforcement replaces retrospective reporting, with no room for discretionary spending outside preset parameters.
This isn't Seoul's first experiment with tokenised deposits. In March, the Environment Ministry and the Bank of Korea ran a smaller pilot managing 30 billion won (approximately $22 million) in electric vehicle charging subsidies through a similar token framework. That trial was limited in scope — a single use case, a handful of participants — but it provided the technical foundation for the broader government-spending application now moving forward.
The ambition is considerable. The Ministry of Economy and Finance has stated its intention to digitise one-quarter of all treasury fund executions by 2030, a target that would make South Korea's public spending infrastructure one of the most blockchain-integrated in any OECD country. The Sejong City pilot is the first step toward that goal, and officials have signalled that a successful trial could lead to rapid expansion across other government functions and municipalities.
What distinguishes South Korea's approach from the CBDC experiments pursued by China, the European Central Bank, and others is its reliance on commercial bank deposits rather than central bank money. The deposit tokens are not a digital won; they are tokenised claims on existing bank balances, which means the existing financial plumbing — deposit insurance, capital requirements, interbank settlement — remains intact. The regulatory framework that South Korea has constructed around digital assets over the past three years gives the government confidence that the legal infrastructure can support the experiment, even if the technology is still unproven at this scale.
A ministry spokesperson described the trial as "a basis for evaluating new payment and settlement methods, with potential implications for fiscal operations if the model proves viable." The careful language belies the programme's scope: nine banks, an entire city's government procurement system, and a four-year roadmap to cover a quarter of national treasury flows. South Korea is betting that programmable money works better than purchasing cards. By the end of 2026, it will have initial evidence to support or abandon that bet.
