Okuma initially made efforts toward the enactment of the New Currency Regulation, introduction of budget system, construction of Mint Bureau (Japan) and Printing Bureau, implementation of Haihan-chiken (abolition of feudal domains and establishment of prefectures) and land-tax reform with support from a councilor Takayoshi KIDO and by employing Hirobumi ITO and Kaoru INOUE, who were from the same Choshu Domain as Kido, and Eichi SHIBUSAWA, a former retainer of shogun.
大隈は当初は参議木戸孝允の支援を受け、木戸と同じ長州藩出身の伊藤博文・井上馨や旧幕臣の渋沢栄一らを登用して、新貨条例制定、予算制度導入、造幣局(日本)・印刷局の建設、廃藩置県・地租改正の実施などに尽力する。