Inventory Reserve An accounting entry that represents a deduction from earnings for the purpose of fairly and reasonably representing the value of inventoried assets on a balance sheet. The inventory reserve is used to make up for the fact that all inventory will not be sold at the cost to the firm. Investopedia Says: An inventory reserve is a contra account on a balance sheet, and an important part of inventory accounting in GAAP. Related Terms: Amortization Backorder Costs Contra Account Depreciation First In, First Out - FIFO Generally Accepted Accounting Principles - GAAP Inventory Last In, First Out - LIFO Net Realizable Value - NRV Periodic Inventory |