To provide a rebate management device, a rebate management method, and a rebate management program that can manage a rebate amount by allocating it to debts as a deposit to clear up the rebate amount when a client requests the rebate amount.SOLUTION: Sales data including a number of sales of a product and a sales amount is acquired, a rebate amount to a billing destination is calculated based on the sales data and a unit price master and/or a billing destination master, then the rebate amount is allocated to debts by making an account title to a deposit.SELECTED DRAWING: Figure 1
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