European Central Bank Paper Flags Stablecoin Risks to Euro-Area Banks and Monetary Sovereignty

A working paper published by the European Central Bank (ECB) warns that widespread adoption of stablecoins could pose material risks to euro-area banks and the bloc’s monetary sovereignty—particularly if the market is dominated by foreign-currency-denominated instruments such as US dollar-backed tokens.

Deposit Reallocation and Monetary Transmission Concerns

According to the paper, rapid stablecoin expansion could prompt a structural reallocation from retail bank deposits into digital assets. Such a shift may constrain banks’ intermediation capacity and introduce uncertainty into the transmission of ECB policy rates to lending volumes.

The authors—Carlo Altavilla, Miguel Boucinha, Lorenzo Burlon, Ramon Adalid, Roberta Fortes and Franziska Maruhn—argue that these risks would be “significantly amplified” if the stablecoin ecosystem in Europe were led by non-euro-denominated instruments.

In that scenario, euro-area banks could become more reliant on foreign-currency wholesale funding, effectively importing external liquidity conditions that diverge from the ECB’s domestic monetary stance.

Dollar-Backed Stablecoins in Focus

The debate comes amid renewed political backing for digital assets in the United States under President Donald Trump, raising concerns among European policymakers that US dollar-backed stablecoins could gain broader traction across the EU.

ECB Executive Board member Piero Cipollone previously cautioned that such instruments could threaten financial stability, while Dutch central bank chief Olaf Sleijpen stated that stablecoins may represent a greater systemic concern than cryptocurrencies due to reserve management practices and their integration with the broader crypto ecosystem.

Sleijpen also noted that regulatory frameworks in the United States remain underdeveloped relative to the global scale and dollar-based nature of many stablecoins.

Diverging Views Within Europe

Not all European policymakers are aligned. Joachim Nagel, President of the Deutsche Bundesbank, has publicly supported the development of euro-pegged stablecoins for payments use cases.

Meanwhile, several major European financial institutions—including Citigroup, ING Groep, UniCredit and DekaBank—are working on regulated euro-based digital instruments aimed at preserving monetary autonomy while enabling innovation.

Strategic Implications

The ECB paper underscores a broader policy tension: balancing digital asset innovation with financial stability and monetary control.

Should foreign-currency-backed stablecoins scale significantly within the euro area, fluctuations in demand could transmit foreign monetary and financial shocks directly into the bloc—potentially weakening the effectiveness of ECB policy tools.

As stablecoin frameworks evolve globally, European regulators appear increasingly focused on ensuring that euro-denominated digital alternatives remain competitive, regulated, and aligned with the region’s monetary objectives.