In later years, they took charge of revenue and expenditures under the written order of the bakufu (steward of the bakufu or Kurabugyo) because doing so saved them transpiration of the tax to the government.
後にその運搬の労を省くために幕府（政所執事あるいは倉奉行）から文書で命令を受けて出納業務を行うようになった。