This study focuses on the transport properties of the quasi-kagome compound URhSn, which exhibits successive phase transitions at T_C = 16 K (ferromagnetic phase) and T_O = 54 K (intermediate phase). A large anomalous Hall component is present along the easy-magnetization axis (H ∥ [0001]), and the Hall resistivity shows a very complex temperature- and field-dependence, with a sign reversal at low temperatures. Below T_O, the Hall resistivity exhibits a nonlinear and unusual field-dependence. Interestingly, there exists an unusual Hall component that is not proportional to the magnetic susceptibility for H ∥ [0001] in both the intermediate and ferromagnetic states. These results reveal unconventional transport properties of URhSn, providing important insights into nontrivial multipolar phases in 5 f-electron systems.