Abstract: A money management system related to one embodiment of the present invention includes a teller machine provided for managing a money amount in a branch of a financial institution, and a money management device that is connectable with the teller machine so as to be able to communicate with each other, and is capable of independently managing the money amount, wherein the teller machine includes: a cooperation-process-information preparation unit configured to prepare cooperation process information for specifying the content of a storage/take-out process, in the case in which the storage/take-out process is performed in regard to the total amount of money stored in the money management device (or money-management-device money amount); and a cooperation-process-information transmission/reception unit configured to transmit and receive the cooperation process information between the teller machine and the money management device, such that the teller machine can manage the money amount including the money-manag