In accordance with presently disclosed embodiments, a collapsible and optionally stackable storage container for bulk material is provided. The disclosed storage container includes a collapsible frame defined by a rigid upper support structure, a rigid lower support structure and a support member coupled at one end to the upper support structure and coupled at another end to the lower support structure. An actuator is also provided which is coupled to the support member at one end. The disclosed storage container further includes a storage sack having an upper portion coupled to the upper support structure and a lower portion coupled to the lower support structure. The lower portion of the storage sack is generally taper-shaped and may be equipped with a discharge opening that enables release of the bulk material onto a conveyor, which may be employed when the collapsible storage container is integrated into a bulk storage system.