Shozei (Taizei) refers to tokoku (rice grains plucked off the straws, with chaff on) and eito (reaped rice plants holding grains) stored in shoso (public repository) in ryoseikoku (province) under the ritsuryo system (a system of centralized government based on the ritsuryo code).
正税（しょうぜい・大税（たいぜい））とは、律令制の下において令制国内にある正倉に蓄えられた稲穀・穎稲（えいとう）のこと。