The title complex, [RhBr(C8H12)(C21H8N2F10)], has a slightly distorted pseudo-square-planar geometry. The whole molecule has an approximate mirror symmetry, with the mirror plane passing through the mid-points of the two alkene bonds of the cycloocta-1,5-diene (COD) ligand. The average Rh-C(COD) distance is inversely related to the magnitude of the Rh - C(benzimidazole) distance in this type of compound. The molecules are stacked in columns running along the a axis. The crystal structure contains two types of intermolecular CH...F interactions, as well as two weak pi-pi stacking interactions.