Money box incorporating a blocking element for closing the gap between a base tray and a retaining element

The invention relates to a cash box comprising a receiving area for receiving a value note stack and a bottom unit delimiting the receiving area towards a box bottom. Further, a retaining element is provided which, in a retaining position, retains the notes of value received in the receiving area in said receiving area. Between the retaining element and the bottom unit a gap is formed. The cash box has at least one blocking element which, at least when the closing unit is closed, closes the gap at least so far that no note of value can slip into the gap.