This report investigates the impact of capital structure on the financial performance of public listed financial institutions, specifically focusing on Jordanian firms. The study utilizes secondary data from sources like annual reports and the Jordan Stock Exchange website, incorporating a comprehensive literature review. Employing regression and descriptive analysis, the research examines the relationship between capital structure and various financial metrics, including operating profit, net profit, return on equity, return on assets, and return on capital employed. The findings reveal a significant impact of capital structure on operating and net profit, while the relationship with other return metrics appears less pronounced. The report delves into the determinants of capital structure, research methodology, data analysis, and concludes with recommendations. The research aims to identify the impact of capital structure on financial performance, exploring determinants, and assessing the relationship between capital structure and key financial indicators. The report also addresses research questions concerning capital structure determinants and its influence on profitability margins and return ratios. The study's significance lies in its potential to aid corporations in optimizing their capital structures, mitigating financial risks, and improving overall financial performance.