Concrete-filled steel tube (CFST) has the potential to reduce cross-sectional dimensions, enhance structural aesthetics, and elevate resistance to high temperatures and blast events. One of the most important criteria in the design of CFST structures, apart from serviceability and load-bearing capacity, is fire resistance. CFST structures are more fire-resistant when compared to hollow steel sections and Reinforced Cement Concrete (RCC) sections, as core concrete absorbs heat and steel tubes prevent spalling of concrete at elevated temperatures, due to which fire resistance can be obtained without the necessity of external fire protection for the steel. Reinforcements in CFST members are commonly required to ensure fire safety, as stated in the European code EN 1994-1-2. Reinforcing the concrete core of CFST enhances its bearing capacity and also provides longer resistance in fire conditions. This study investigates the axial performance of steel-reinforced concrete-filled steel tube (SRCFST) stub columns featuring perforations when exposed to fire conditions. Seven SRCFST stub columns, differing in perforation configurations and concrete types, were created and subjected to high temperatures in an electric furnace, followed by axial compression testing. The results demonstrate that both perforations and fire exposure substantially reduce the structural capacity of SRCFST columns. Columns with perforations showed a marked decrease in load-bearing capacity under fire exposure compared to non-perforated samples. These results provide vital insights into the fire resistance and design optimization of SRCFST structures with geometric modifications.