There are four main components to the carrying cost of inventory for a business: capital cost, storage space cost, inventory service cost, and inventory risk cost. Capital cost is the largest component and represents the cost of funds tied up in maintaining inventory levels. Storage space cost includes expenses like rent, utilities, and materials handling. Inventory service cost includes insurance and taxes paid on stored goods. Inventory risk cost accounts for the potential for items to become obsolete, be damaged, or face theft while held as inventory. Proper inventory management and control seeks to minimize these carrying costs.