The European Central Bank is sounding the alarm on stablecoins: if dollar-denominated digital tokens keep growing unchecked, European banks could lose a meaningful chunk of their deposit base. That’s not just a banking problem. It’s a monetary policy problem.
ECB Executive Board member Piero Cipollone has been making this case repeatedly, most notably in speeches on February 6 and May 28. His core argument is straightforward: if consumers and businesses start parking their euros in USD stablecoins like Tether’s USDT or Circle’s USDC, those funds leave the European banking system. Banks then have to replace cheap deposit funding with more expensive wholesale funding, which makes lending pricier and harder to come by.
The deposit drain scenario
Cipollone’s warning centers on what he calls “unlimited stablecoin holdings.” If there’s no cap on how much value can flow into private stablecoins, the outflow from bank deposits could be rapid and destabilizing. Banks facing volatile funding costs would naturally tighten lending standards, which would ripple through the real economy in ways the ECB can’t easily offset with rate cuts alone.
The digital euro as a countermove
