The Battle for Deposits: Why the ECB Views Stablecoins as an Existential Threat to European Banking
As mobile payments erode fees, the ECB positions the digital euro as a crucial defense for commercial bank deposits.
European commercial banks are facing a slow-moving, multi-front war for control of the payments landscape. For years, the erosion was gradual: mobile applications and fintech startups chipped away at traditional revenue streams, capturing valuable transaction fees and consumer data. Now, the European Central Bank (ECB) is raising the alarm over a far more systemic threat. The rise of private stablecoins, the central bank warns, could soon drain the very foundation of the commercial banking model: retail deposits.
Piero Cipollone, an executive board member of the European Central Bank, delivered this stark warning during a banking conference in Rome, positioning the proposed digital euro not merely as a technological upgrade, but as a vital defense mechanism for Europe’s sovereign financial infrastructure.
The shift away from legacy banking systems is already well underway. “Even traditional debit card payments are becoming less popular. In fact, mobile payments are on the rise and they already exceed one in ten point-of-sale transactions in Ireland, the Netherlands and Finland,” Cipollone observed, highlighting how quickly consumer habits are shifting toward digital-first alternatives.
This transition has left commercial banks structurally disadvantaged. “When their customers use mobile payments, banks typically pay higher fees than those associated with debit cards and often do not receive any information about the payment, so they lose both fees and data,” Cipollone added. “If the use of stablecoins increases in the future, banks will also lose retail deposits.”
The audience for Cipollone’s address—primarily Italian cooperative bank executives—has unique reasons to view this trend with concern. In Italy, cooperative banks serve as the financial lifeblood of rural and small-town economies; approximately half of their branches are located in municipalities with populations under 10,000. For these institutions, the loss of localized transaction data and deposit relationships is not an abstract balance-sheet fluctuation—it threatens to hollow out the relationship-based lending model that sustains local businesses and homeowners.
Stablecoins represent a fundamental departure from traditional fintech intermediaries. Unlike digital wallets or payment apps that still rely on underlying commercial bank accounts, stablecoins are privately issued digital assets pegged 1:1 to a fiat currency—predominantly the U.S. dollar. They allow users to store, transfer, and settle value entirely on blockchain networks, bypassing the clearinghouses and balance sheets of traditional financial institutions. Currently, the global stablecoin market sits at roughly $300 billion, per DefiLlama data, representing a massive pool of liquidity operating largely outside the direct purview of traditional banking systems.
For central bankers, the primary concern is that if stablecoins achieve mainstream adoption, retail depositors may choose to keep their liquid funds in digital tokens rather than traditional bank accounts. Because commercial banks rely on these stable retail deposits to fund their loan portfolios, a mass migration of capital into private digital assets would restrict their capacity to extend credit, driving up borrowing costs and dampening economic growth.
Furthermore, Europe’s payment infrastructure is already heavily reliant on foreign entities. Currently, two-thirds of card payments in the euro area route through non-European schemes, and 13 of 21 eurozone countries have no national card scheme of their own. This lack of domestic alternatives leaves the region highly vulnerable to external economic shifts and corporate decision-making.
To counter this vulnerability, the ECB is championing the digital euro—a sovereign, central bank-backed digital currency (CBDC) designed to function as an electronic equivalent of physical cash. Crucially, the ECB’s blueprint does not seek to disintermediate the private sector. Instead, the digital euro would be distributed through—not instead of—commercial banks. Under this two-tier model, commercial banks would maintain customer relationships, manage digital wallets, earn interchange fees, and retain transaction data.
To address concerns that a risk-free central bank liability might itself trigger bank runs during periods of economic stress, the ECB has integrated specific guardrails into the design. The digital euro will not yield interest, eliminating the incentive for consumers to use it as a high-yield savings vehicle, and strict holding limits will cap the maximum balance any individual can maintain in their wallet. The ECB’s financial stability assessments indicate that these measures will successfully mitigate liquidity risks for commercial banks.
The regulatory and operational framework for the digital euro is moving forward rapidly. The ECB has already selected 36 payment service providers—including major institutions such as Deutsche Bank, UniCredit, and Revolut—to participate in a digital euro pilot starting in the second half of 2027. This 12-month initiative will test the technical and operational viability of the architecture in real-world scenarios.
On the political front, the project recently cleared a major hurdle. The European Parliament voted 416 to 169 to begin formal legislative negotiations on the digital euro. According to Cipollone, these legislative negotiations commenced shortly after receiving approval on July 9, with the inaugural session taking place just four days later on July 13. European lawmakers are aiming to finalize the legislative package by the end of 2026, paving the way for a potential public rollout and first issuance by 2029.
