Interest Rate Risk in the Banking Book (IRRBB) – EBA Guidelines and CSSF Expectations for Luxembourg Banks
Last updated: March 2026 Rates went up faster than most banks modelled. Between mid-2022 and late 2023, the ECB raised its deposit facility rate from -0.50% to 4.00%, a shift of 450 basis points in under 18 months. For Luxembourg banks that had built fixed-rate asset portfolios during the low-rate era, financed by short-term or…