Mandatory salt - Gymen

...Initially, lords and kings collected salt on their own territories based on their sovereignty, but in the mid-14th century, collection by royal authority began, mainly due to the need to raise funds for war, and the system was established by Louis XIV's Salt Tax Decree (1680). There were large regional differences in the degree of freedom in the sale of salt and the tax rate, but in the central areas of the kingdom, salt was bought and sold at an official price via royal salt warehouses, and residents were obliged to pay the tax by buying a certain amount of salt (compulsory salt) at the salt warehouses each year. The salt tax brought in the largest amount of revenue out of all indirect taxes, but it was extremely unpopular, and was often the cause of salt tax revolts in the 16th and 17th centuries, and was abolished during the French Revolution (1790). ...

*Some of the terminology explanations that mention "obligatory salt" are listed below.

Source | Heibonsha World Encyclopedia 2nd Edition | Information

…はじめは領主や国王が自己の領地で領主権にもとづいて徴収していたが，14世紀半ばに主として戦費調達の必要から王権にもとづく徴収が開始され，ルイ14世の塩税王令(1680)によって制度的確立をみた。塩売買の自由度，税率には大きな地域差があったが，王国の中心地域では塩は王立の塩倉を経由して公定価格で売買され，住民は塩倉で毎年一定量の塩(義務塩)を買って税を納めることを義務づけられた。塩税は間接税中最大の収入をあげたが，反面きわめて不人気で，16,17世紀にしばしば塩税一揆の原因となり，フランス革命の際に廃止された(1790)。…

※「義務塩」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。

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