Assessment of Basel III Capital Regulation and its Implementation Challenges in Nigerian Banks

The phased implementation of the Basel III capital adequacy framework by the Central Bank of Nigeria presents significant technical and operational challenges for Nigerian banks, particularly regarding the new capital conservation buffer, liquidity coverage ratio, and net stable funding ratio requirements. This study assesses the implementation progress and challenges of Basel III capital regulation in Nigerian deposit money banks. A professional and analytical research design was employed using primary data from 60 treasury and capital management executives across twelve deposit money banks in Lagos, Abuja, and Port Harcourt, and secondary data from the Central Bank of Nigeria Basel III implementation progress reports for 2020 to 2023. Implementation challenges were assessed across dimensions of data infrastructure, skilled personnel availability, regulatory reporting compliance, and capital planning. Descriptive statistics and Kruskal-Wallis tests were employed. Results indicated that 75% of sampled banks met the minimum capital adequacy ratio of 15% as required under the Central Bank of Nigeria's Basel III-aligned guidelines. However, compliance with the liquidity coverage ratio requirement was achieved by only 58% of banks as at December 2022. Data infrastructure deficiencies were the most commonly cited implementation challenge, reported by 82% of respondents. The study concludes that while capital ratio compliance is broadly achieved, liquidity-related Basel III requirements expose significant gaps that require investment in data systems and qualified risk professionals in Nigerian banks.

Keywords: Basel III, capital regulation, liquidity coverage ratio, Nigerian banks, implementation challenges