This study aims to analyze the influence of Good Corporate Governance (GCG), firm size, and liquidity on the financial performance of banking companies listed on the Indonesia Stock Exchange (IDX) during the 2020-2023 period. GCG is measured using the Self-Assessment score, firm size is represented by total assets, and liquidity is assessed using the Cash Ratio (CR). Financial performance is measured by Return on Assets (ROA).

The data in this study were analyzed using a quantitative method with a multiple regression approach. This approach examines the relationship between independent variables (GCG, firm size, and liquidity) and the dependent variable (ROA). Secondary data were obtained from the annual reports of banking companies published on the Indonesia Stock Exchange during the study period.