A sheet-sorting apparatus has a stacking tray to stack sheets formed with indicia thereupon, a processing tray to receive said sheets in the process leading to said stacking tray, and when necessary, a path to discharge directly to said stacking tray and a path to discharge said sheets to said stacking tray means via said processing tray means the paths being selectable, enabling a leading set of a plurality of sheets to be discharged directly the stacking tray and continuing to stack subsequent sheet sets in said processing tray through which process leading set of sheets and the subsequent set of sheets are sorted on the stacking tray.