One Minute Deposit - Ichibutsu Mikin

...This was called the "70% reserve fund," and was to be paid by the landlords of each town from the rents and other benefits they received from their own town houses. Some towns also independently managed the remaining portion of their reserves as the "10% reserve fund."
[Functions of the Edo Town Hall]
The seven-tenths savings amounted to 20,000 to 25,000 ryo each year, and were managed by representatives of Edo townspeople under the supervision of the Finance Magistrate's Office and the Town Magistrate's Office.

*Some of the terminology used in reference to "Ichibun Deposit" is listed below.

Source | Heibonsha World Encyclopedia 2nd Edition | Information

…これが七分積金で，各町の地主が自己の所持する町屋敷から収取する地代店賃上り高から支払うものとされた。また各町留保の節減分を，一分積金として独自に運用する町もあった。
［江戸町会所の機能］
　七分積金は毎年2万～2万5000両に及び，勘定奉行所や町奉行所の監督の下，江戸町人の代表によって運用された。…

※「一分積金」について言及している用語解説の一部を掲載しています。

出典｜株式会社平凡社世界大百科事典 第２版について | 情報