Impact of Return on Assets, Net Interest Margin, and Loan-to-Deposit Ratio on Capital Adequacy Ratio

Abstract

Bank operations can run smoothly if there is sufficient capital. The Financial Services Authority (OJK) issued OJK Regulation No. 12/POJK.03/2020 concerning the Reconsolidation of Commercial Banks. This regulation stipulates a minimum core capital of IDR 3 trillion for commercial banks, with a deadline of 2022, and for regional development banks (BPD) until 2025. According to detikFinance's 2021 data, Bank SulutGo is among the 15 regional banks that have a core capital shortfall of IDR 1.3 trillion. This study aimed to determine the impact of return on assets (ROA), net interest margin (NIM), and loan-to-deposit ratio (LDR) on capital adequacy ratio (CAR) from the audited 2011-2021 quarterly financial statements. This research can help understand the phenomenon occurring at Bank SulutGo and provides recommendations on how banks can improve their capital adequacy. This analysis can provide insight into how these variables interact and impact Bank SulutGo's capital adequacy. It can also make important contributions to the literature on banking financial management, particularly in the Indonesian context. The analysis used multiple linear regression. The results show that ROA, NIM, and LDR significantly affect overall CAR. Individually, ROA and LDR have a positive impact, whereas NIM has a negative impact on CAR. R2 of 0.227, 22.7% of Bank SulutGo's CAR variation in 2011-2021, is explained by variations in ROA, NIM, and LDR, whereas other influencing factors constitute 77.3%.