An image forming apparatus includes a toner case, an apparatus main body and a cover. The toner case includes a case main body, a shutter and a manipulation portion. The case main body has a discharge port configured to discharge a toner. The shutter opens/closes the discharge port. The manipulation portion is movable between a first position to make the shutter open the discharge port and a second position to make the shutter close the discharge port. To the apparatus main body, the toner case is detachably attached. The cover is openably/closably attached to the apparatus main body. The cover includes an interfering member. The interfering member is movable between an interfering position where the interfering member interferes with the manipulation portion being in the second position and an interference release position where the interfering member does not interfere with the manipulation portion being in the second position.