In a recent briefing, South Korea’s budget office highlighted the potentially transformative impact that stablecoins could have on the nation’s retail sector. According to the office’s projections, if merchants across the country were to adopt stablecoins for everyday transactions, the cumulative savings could approach a staggering $3.8 billion each year. This figure is derived from a detailed analysis of transaction fees, currency conversion costs, and the overhead associated with traditional payment processing methods that rely on conventional banking infrastructure.

Stablecoins, a class of digital assets that are pegged to a stable reserve such as the U.S. dollar, the euro, or even a basket of fiat currencies, have been gaining traction worldwide as a bridge between the volatile world of cryptocurrencies and the more predictable realm of fiat money.

In South Korea, a market known for its tech‑savvy consumer base and high penetration of mobile payment solutions, the prospect of integrating stablecoins into point‑of‑sale systems presents a compelling case for both efficiency and cost reduction. The budget office’s analysis begins by examining the current cost structure of card‑based payments. Merchants typically incur a merchant discount rate (MDR) that can range from 1.5 % to 3 % of each transaction, depending on the card network, the type of card used (debit versus credit), and the volume of sales.

These fees are passed on to banks and payment processors, which then distribute a portion of the revenue back to the issuing banks and card schemes. Over time, the cumulative effect of these fees on a large retailer’s bottom line can be substantial.

By contrast, stablecoin transactions, settled on a blockchain or a distributed ledger, can be processed with a fraction of the cost—often just a few cents per transaction—because they eliminate many of the intermediaries that traditionally take a cut. Beyond the direct fee savings, the budget office points out additional advantages that stem from the speed and transparency of blockchain‑based settlements. Conventional cross‑border payments can take several days to clear, especially when multiple correspondent banks are involved. Stablecoins, however, can be transferred internationally in near‑real‑time, with the transaction recorded immutably on the ledger.

For Korean merchants who import goods or who sell to overseas customers, this reduction in settlement time translates into improved cash flow, lower working‑capital requirements, and a reduced need for short‑term financing. Nevertheless, the office also warns of several systemic risks that could accompany a rapid shift toward stablecoins.

One of the primary concerns is the potential erosion of banks’ role as credit intermediaries. In the traditional banking model, deposits collected from savers are pooled and lent out to borrowers, creating a flow of credit that fuels economic activity. If consumers and businesses begin to store a significant portion of their liquidity in stablecoins rather than in bank deposits, the pool of funds available for banks to lend could shrink. This contraction might lead to tighter credit conditions, higher borrowing costs, or a slowdown in loan‑driven growth sectors such as housing and small‑business investment.

Another risk highlighted by the budget office involves the stability of the token peg itself. Stablecoins maintain their value by holding reserves that match the amount of digital tokens in circulation. In a scenario where a large number of users decide to redeem their stablecoins for fiat currency simultaneously—a so‑called “run” on the stablecoin—the issuer must have sufficient liquid assets to honor those redemptions. If the issuer’s reserve management is inadequate, or if market conditions deteriorate sharply, the peg could break, leading to a rapid devaluation of the stablecoin.

Such an event would not only harm individual holders but could also spill over into the broader financial system, especially if the stablecoin has become deeply integrated into retail payment flows. To mitigate these risks, the budget office recommends a coordinated regulatory approach. First, it suggests that stablecoin issuers be required to maintain transparent, regularly audited reserve accounts that are fully backed by high‑quality, liquid assets. Second, the office proposes that issuers implement robust liquidity management frameworks, including stress‑testing scenarios that simulate large‑scale redemption events.

Third, it calls for close collaboration between the Financial Services Commission, the Bank of Korea, and relevant industry stakeholders to develop standards for consumer protection, anti‑money‑laundering (AML) compliance, and cybersecurity. From a policy perspective, the budget office also emphasizes the importance of preserving the essential functions of banks while still encouraging innovation.

One possible solution is to create a hybrid model where banks act as custodians for stablecoins, offering their existing customer base the ability to hold and transact with digital tokens within a regulated environment. This arrangement could allow banks to retain a portion of the deposit base, thereby sustaining their lending capacity, while also providing merchants with the cost‑effective payment infrastructure that stablecoins promise.

In addition to the direct financial benefits, the broader economic implications of stablecoin adoption are noteworthy. By lowering transaction costs and accelerating settlement times, stablecoins could stimulate e‑commerce growth, especially among small and medium‑sized enterprises (SMEs) that are often constrained by high payment processing fees. Moreover, the increased efficiency could make South Korea a more attractive destination for foreign investors seeking a modern, digital‑first payments ecosystem. The budget office’s report concludes that while the potential savings of up to $3.8 billion per year are compelling, policymakers must balance these gains against the possible destabilizing effects on the banking sector and the integrity of stablecoin pegs.

A measured, well‑regulated rollout—supported by clear guidelines, rigorous oversight, and collaboration between public and private actors—could enable South Korea to harness the benefits of stablecoins without compromising financial stability. In summary, stablecoins present a promising avenue for reducing operational costs for Korean merchants and enhancing the efficiency of the nation’s payment landscape. However, realizing this promise requires careful navigation of the associated risks, particularly those related to credit intermediation and token‑peg stability.

With thoughtful regulation and strategic partnerships, South Korea could position itself at the forefront of the digital payments revolution while safeguarding the resilience of its broader financial system.