Attempting to rebuild the bakufu's finances, Tadanari recoined and mass-issued currency on eight occasions between the Bunsei and Tenpo eras, though these attempts ultimately brought negative effects, such as price increases.
忠成は財政再建のために文政期から天保期にかけて8回に及ぶ貨幣改鋳・大量発行を行なっているが、これがかえって物価騰貴などを招くことになった。