RT Journal Article A1 Umi Hasanatun A1 Melisa Bella Saragi A1 Wenny Tailisha A1 Delysia Angelyn A1 Helman Helman A1 Mella Yunita T1 The influence of debt to asset ratio, total asset turnover, and net profit margin on return on assets in the Banking Subsector listed on the Indonesia Stock Exchange (2019-2022) JF Journal of Economics and Business Letters YR 2025 VO 5 IS 1 SP 12-28 DO 10.55942/jebl.v5i1.388 AB This study investigates the impact of the debt-to-asset ratio (DAR), Total Asset Turnover (TATO), and Net Profit Margin (NPM) on the financial performance of banking companies listed on the Indonesia Stock Exchange (IDX) during the period 2019–2022. Return on Assets (ROA) is used as the dependent variable to measure profitability. Drawing on secondary data from 27 purposively selected banks over four years, this study employs multiple linear regression analysis supported by classical assumption tests to ensure model robustness. The results show that DAR has a significantly negative effect on ROA, indicating that excessive leverage can undermine asset-driven profitability. Conversely, both TATO and NPM exert significant positive effects on ROA, suggesting that efficient asset utilization and strong cost control are key drivers of financial performance in the banking sector. The findings also reveal that DAR, TATO, and NPM jointly explain 97% of the variation in ROA, highlighting the integrated influence of capital structure, operational efficiency, and profit-margin management. This study contributes to the literature by offering a post-pandemic assessment of profitability drivers in the Indonesian banking context and provides practical implications for bank managers, regulators, and investors aiming to optimize performance in an increasingly digitized and regulated environment. K1 Bank profitability, Return on Assets (ROA), Debt to Asset Ratio (DAR), Total Asset Turnover (TATO), Net Profit Margin (NPM), Indonesian banking sector LK https://journal.privietlab.org/index.php/JEBL/article/view/388 ER