Originally, it was tithed to the Minbusho (Ministry of Popular Affairs) and then distributed to the various Kanji (government official), but in the tenth century, the Minbusho did not intervene, but each province directly tithed shomai to a given Kanji and this became one of the factors that led to each Kanji becoming responsible for their individual finances.
当初は民部省に貢進された後で各官司に配分されたが、10世紀に入ると民部省を関与させずに特定の官司に対して特定の国が舂米を直接貢進する形式に替わり、各官司の財政が独立採算制に変わっていく一因となった。