The name given to money exchangers who were appointed to calculate the revenue from each domain's annual rice tax and to manage money for the purchasing of goods was "Kakeya"; this name was also used for persons in charge of reapplying the ryome for cupellated silver that had been produced in the Iwami Ginzan and Ikuno Ginzan Silver Mines (which were located in lands owned by the bakufu) and paid to the authorities.
諸藩における年貢米の売り上げ、物品購入代金の管理を任命された両替商、および天領である石見銀山、生野銀山などで産出される上納灰吹銀の量目を掛け改めた役職は掛屋（かけや）とも呼ばれた。