South Korea's central bank, the Bank of Korea, is advancing its central bank digital currency pilot into a second phase, with deposit tokens set to be integrated into existing banking systems for real-world usage testing. The shift marks a concrete step beyond conceptual development, moving the program into live infrastructure.
What the Second Phase Actually Involves
Deposit tokens are digital representations of commercial bank deposits — not the central bank's own liability, but a bank-issued instrument sitting on top of a CBDC rail. The distinction matters: holders keep a claim on their commercial bank, not directly on the central bank. Integrating these tokens into existing banking systems means the pilot is testing whether the plumbing already in place at South Korean lenders can carry a new class of digital instrument without a wholesale rebuild.
The Bank of Korea's decision to advance to a second phase signals that the first phase — typically concept validation and limited technical trials in most CBDC programs — produced results sufficient to justify broader testing. The source does not detail what metrics cleared that bar or which banks are participating in the integration work.
What the Source Does Not Say
No transaction volumes, participating institution names, timelines, or budget figures appear in the available reporting. The source does not specify how many banks will integrate deposit tokens, what the test scenarios look like, or whether retail or wholesale payments are the primary target. Anyone citing numbers for this program is working from sources beyond what has been reported here.
That gap is worth noting. CBDC pilots routinely generate headline momentum well ahead of meaningful data. The Bank of Korea's program is entering a phase where it will have to show deposit tokens functioning under real banking conditions — settlement finality, interoperability with existing payment rails, and the question of who holds credit risk if a participating bank fails. Phase two will not answer all of those questions, but it is where real answers start to accumulate.
South Korea's Position in the CBDC Field
South Korea has been an active participant in the global wave of central bank digital currency exploration. The Bank of Korea's deposit token approach aligns with a model several major economies are examining as an alternative to a direct retail CBDC, in which the central bank would hold individual accounts. The deposit token structure preserves the existing two-tier banking relationship — central bank issues the base layer, commercial banks handle customer-facing activity — while adding programmability and settlement efficiency that physical cash cannot provide.
Whether that efficiency justifies the integration cost, and for whom, is the question phase two is meant to answer.