IRBA Implementation Opportunities for Small Banks

This whitepaper discusses the implications of the Capital Requirements Regulation III (CRR III) for small banks, particularly focusing on the Internal Ratings-Based Approach (IRBA). It outlines how CRR III, effective from January 1, 2025, allows banks to utilize a tailored partial use of the IRBA, enhancing capital efficiency and risk management. The document presents case studies demonstrating the potential benefits of transitioning to the IRBA, including significant reductions in Risk-Weighted Assets (RWA) for retail exposures. It details the challenges associated with implementing the IRBA, such as ensuring high data quality and compliance with regulatory requirements. The paper also describes the support provided by d-fine in the IRBA transition process, which includes a preliminary study, transformation management, and audit preparation. This structured approach aims to assist banks in navigating the complexities of adopting the IRBA while maximizing the associated advantages.