A money depositing/dispensing device which performs at least a depositing process and a dispensing process of money, comprising: at least one storage unit provided in the money depositing/dispensing device and configured to store the money and feed the stored money; and an inventory amount obtaining unit configured to count the money to be stored in the storage unit and count the money fed from the storage unit, thereby successively obtaining an inventory amount of the money stored in the storage unit; a depositing process unit for performing the depositing process; a dispensing process unit for performing the dispensing process; characterized in that the money depositing/dispensing device includes a virtual inventory amount setting unit configured to set, in the event of an error, such as a banknote jam, which interrupts the depositing process or the dispensing process, an inventory amount of the money which is not present in the device but should be treated as money present in the device, as a virtual inventory amount; and a device inventory amount management unit configured to manage, as an inventory amount of the money present in the device, a sum of the inventory amount of the money stored in the storage unit obtained by the inventory amount obtaining unit and the virtual inventory amount set by the virtual inventory amount setting unit, wherein the depositing process unit being configured to perform the depositing process when the virtual inventory amount is zero and when the virtual inventory amount is not zero, and the dispensing process unit being configured to perform the dispensing process when the virtual inventory amount is zero and when the virtual inventory amount is not zero. at least one storage unit provided in the money depositing/dispensing device and configured to store the money and feed the stored money; and an inventory amount obtaining unit configured to count the money to be stored in the storage unit and count the money fed from the storage unit, thereby successively obtaining an inventory amount of the money stored in the storage unit; a depositing process unit for performing the depositing process; a dispensing process unit for performing the dispensing process; characterized in that the money depositing/dispensing device includes a virtual inventory amount setting unit configured to set, in the event of an error, such as a banknote jam, which interrupts the depositing process or the dispensing process, an inventory amount of the money which is not present in the device but should be treated as money present in the device, as a virtual inventory amount; and a device inventory amount management unit configured to manage, as an inventory amount of the money present in the device, a sum of the inventory amount of the money stored in the storage unit obtained by the inventory amount obtaining unit and the virtual inventory amount set by the virtual inventory amount setting unit, wherein the depositing process unit being configured to perform the depositing process when the virtual inventory amount is zero and when the virtual inventory amount is not zero, and the dispensing process unit being configured to perform the dispensing process when the virtual inventory amount is zero and when the virtual inventory amount is not zero.