A money handling system includes a first money handling apparatus, a money cassette to which money is to be transferred from the first money handling apparatus, a second money handling apparatus to which the money is to be transferred from the money cassette, a memory unit that is included in the money cassette and stores specific information that identifies a timing at which the money is transferred from the first money handling apparatus to the money cassette, and a management unit that calculates sales proceeds for each predetermined period, based on the specific information received by the second money handling apparatus from the memory unit and an amount of the money transferred from the money cassette to the second money handling apparatus.