Abstract: This study examines the adoption of International Financial Reporting Standards (IFRS) and their impact on provisioning practices within Nigerian financial institutions. Drawing on hypothetical data from 286 respondents, the research explores institutional experiences in adopting IFRS, updating accounting policies, provisioning models used, and the challenges encountered in compliance. Findings reveal that 41.3% of respondents reported full IFRS adoption, while 32.2% indicated partial implementation. In terms of responsiveness, 33.6% of institutions updated their accounting policies very frequently, and 38.5% did so occasionally. Regarding provisioning, 42.7% reported moderate improvements and 35.3% noted significant enhancements in accuracy and transparency. The Expected Credit Loss (ECL) model was the most commonly used, cited by 47.9% of respondents. However, key challenges were identified, including data quality issues (31.8%), lack of skilled personnel (29.4%), and the complexity of IFRS rules (23.4%). While 42.3% of respondents stated that their institutions addressed these challenges moderately effectively, 26.6% reported minimal efforts, and 10.5% said no efforts were made. The study concludes that although IFRS adoption has improved financial reporting practices, disparities in technical capacity and institutional preparedness remain, calling for targeted interventions in training, infrastructure, and regulatory support.