Stale inventory is inventory that has been sitting in a company’s storage for too long without being sold. This inventory can include products that are out of date, overstocked, or simply no longer needed. Keeping this kind of inventory on hand can lead to cash flow problems, and can even cause the company to lose money. Companies need to be aware of how much stale inventory they have on hand, and take steps to reduce it when possible. Making sure to move stock regularly and using sales promotions can help keep inventory fresh and drive profits.