A self-inking stamp includes a housing, in which an ink pad holder adapted to receive an ink pad and a stamping unit including stamp types are arranged. The ink pad holder is replaceably arranged in the housing. An actuating member is slidably mounted on the housing and is coupled with a turn-over mechanism for pivoting the stamping unit between a coloring position and a print position. A signal generator records a movement of the actuating member into an actuating position corresponding to the print position. An electronic evaluating unit including a counting module is connected to the signal generator for processing a signal supplied by the signal generator. A switching member is connected to the evaluating unit and is arranged to be switched from a first switching state to a second switching state when the ink pad holder is inserted or removed.