Lucrativeness is a vital element for evaluating Islamic banks' monetary achievement. It's critical to grasp the determinants that influence Indonesian Islamic banks' lucrativeness. The objective of this examination is to explore the factors—such as problematic financing, financing to store ratio, currency rates, price rises, and operational proceeds as an intermediary variable—that impact the productivity of Islamic banks in Indonesia. This research intends to provide choice makers in the Islamic fiscal industry a more comprehensive discernment of the budgetary operation of Islamic banks by scrutinizing these guidelines. This research methodology uses a panel data approach using secondary data from Islamic banks in Indonesia. Through panel data analysis, this study examines the effect of these variables on the profitability of Islamic banks. The conclusions showed that, in Sub-structural I, Financing to Deposit Proportion (FDR) favorably affects the productivity (ROA) of Indonesian Islamic banks, while Non-Performing Financing (NPF), Currency Ratios, and Rising Prices have no consequence on operational expenses operational proceeds (BOPO). As indicated by sub-structural II, profitability is impacted by inside factors (NPF and BOPO), outer variables (expansion and cash rates) have no significant effect on productivity, and financing to store proportion (FDR) has no impact on productivity. In this examination, the BOPO fills in as a mediating variable that just intercedes the effect of the Financing to Deposit Ratio on Lucrativeness. Concerning the other autonomous factors, it has no bearing. Other than featuring the significance of hazard relief and operational effectiveness in accomplishing positive monetary outcomes, this exploration illuminates the variables influencing the productivity of Islamic banks in Indonesia.