Before 1980, the Ministry of Finance only dealt with the civil budget, while the Planning Commission handled the development budget, which was financed from external aid. In 1980, the development budget was transferred to the Ministry of Finance, and a Budget Bureau was created. In 1985, the Budget Bureau merged with the Central Accounts Division and was renamed the Department of National Budget and Accounts (DNBA). In 1992, the function of aid coordination was transferred from the Planning Commission to the DNBA. Later, in 2000, the DNBA was bifurcated into two separate departments: the Department of Budget and Accounts and the Department of Aid and Debt Management.
The Customs Department was formally established in 1971, and customs checkposts were opened in various locations, including Phuentsholing, Chengmari, Samtse, Sipsoo, Sarpang, Kalikhola, Gelephu, and Samdrup Jongkhar, in 1978. In 1982, the excise, motor vehicle, and revenue divisions merged to form the Revenue Division, and in 1986, customs and revenue were merged into the Department of Revenue & Customs. In 2004, the Department of Lottery was established, having previously been a Directorate under Revenue and Customs.