SNB Zero-Rate Policy Extended Through 2027, Squeezing Swiss Lenders

The Swiss National Bank (SNB) has extended its zero-rate policy through at least late 2027, dealing a significant blow to Swiss lenders. The SNB's decision, announced on June 18, 2026, suggests that interest rates will remain low for an extended period, putting pressure on banks' business models.

Swiss lenders rely heavily on borrowing cheap and lending expensive to generate revenue. However, with the central bank setting borrowing costs at zero, this spread has compressed significantly, leaving banks with slim margins. In 2024, Swiss aggregate net income fell by CHF 2.6 billion compared to 2023, with interest income declining by CHF 3.2 billion.

Economists project a further decline of approximately CHF 660 million in net interest income due to ongoing rate cuts. With retail customers unlikely to accept negative rates on their savings accounts, banks are absorbing the costs instead. This situation is reminiscent of the previous zero and negative rate episode from 2011 to 2015, when net interest margins at Swiss banks dropped from 1.4% to 1.1%.

Bond investors are also affected by the SNB's commitment to zero rates through 2027, as it keeps Swiss franc short-term yields near zero. This makes Swiss government debt expensive in price terms and unattractive on yield. However, a sudden inflation surprise could shift this scenario, prompting the SNB to raise interest rates.