A toner container for an image forming apparatus includes: a toner container body; structure supporting the container body in a rotatable manner and comprising a toner feed aperture. The supporting structure includes a shutter opening and closing mechanism for opening and closing the toner feed aperture. The container body is applied with a sealing element for sealing the toner discharge aperture of the container body. The sealing element is engaged with the supporting structure at one end opposite to the other end thereof which seals the toner discharge aperture of the container body when the container body is held by the supporting structure. The side surface of the container body against which the shutter opening and closing mechanism provided for the supporting structure abuts is formed with an engaging projection for engaging the shutter opening and closing mechanism when the shutter element confines the toner feed aperture.