Abstract: A plastic bag storage assembly includes a box that has an entrance into the box thereby facilitating plastic bags to be inserted into the box. The box is pleated thereby facilitating the box to be positioned between an expanded position or a collapsed position. A lid is hingedly coupled to the box and the lid has opening extending through the lid thereby facilitating the plastic bags to be inserted through the opening. The lid is lowered onto the plurality of plastic bags contained in the box when the box is in the collapsed position such that the plastic bags in the box are constantly accessible through the opening. In this way the box facilitates a user to remove a plastic bag from the box regardless of how many plastic bags are stored in the box.