An image forming apparatus of an embodiment of the invention includes a first storage unit to store, based on stored information stored in wireless tags attached to a plurality of consumable items, an application to manage the stock number of the plurality of consumable items, a second storage unit to store replacement information to indicate replacement from a first consumable item installed in the image forming apparatus to a second consumable item included in the plurality of consumable items, a notification unit to notify the replacement information stored in the second storage unit, and a read unit to read, based on the replacement from the first consumable item to the second consumable item, the first stored information stored in a first wireless tag attached to the second consumable item.