ECB warns euro zone banks near reserve limits as liquidity shrinks

Thursday 02 April 2026 - 17:40

By: Dakir Madiha

ECB warns euro zone banks near reserve limits as liquidity shrinks

The European Central Bank has warned that banks across the euro area must prepare for tighter liquidity conditions as excess reserves decline rapidly. In a blog post published on April 2, the ECB said nearly half of the banking system will soon operate close to minimum reserve comfort levels.

Central bank reserves have dropped sharply from a peak of €4.9 trillion in 2022 to about €2.6 trillion at the start of 2026. The ECB expects a further annual decline of roughly €470 billion as quantitative tightening continues. By the end of 2026, banks representing 50 percent of euro area banking assets are projected to reach their preferred reserve thresholds, compared with 26 percent today and 15 percent a year earlier.

The shift reflects the gradual withdrawal of pandemic-era stimulus. The Financial Times reported that nearly €3 trillion in excess liquidity could exit the financial system by 2027.

An ECB survey conducted in late 2025 shows that banks closest to their reserve limits include globally systemic institutions, custodians, and asset managers. These institutions tend to manage liquidity more actively and may need to secure alternative funding sooner. While overall reserves remain described as abundant, the ECB stressed they are unevenly distributed across banks.

Short-term money market rates remain stable near the ECB deposit rate of 2 percent. Demand for standard refinancing operations has averaged around €20 billion, a small share compared with total excess liquidity. However, the ECB expects borrowing through weekly and longer-term refinancing operations to increase as reserves decline, effectively replacing asset purchases as the main liquidity channel.

Analysts at ING estimate that excess liquidity could fall below €2 trillion by the end of 2027. At that level, refinancing operations would likely expand significantly to prevent upward pressure on money market rates. Research from Bruegel places the potential stress threshold between €1.3 trillion and €2 trillion.

The ECB said the transition remains orderly and sees no signs of market fragmentation. It noted that repo markets continue to redistribute liquidity efficiently across banks and jurisdictions. Still, the central bank urged institutions to treat refinancing operations as standard tools and ensure operational readiness well before liquidity constraints emerge.