| | 21.05.1973 | Economic Planning Unit (EPU) was established under the State Secretariat Office
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| | 01.01.1976 | Economic Development Board (EDB) was established under the State Secretariat Office | |
| | 01.01.1993 | The transfer of Computer Section of EPU to Technology and Information Section of Ministry of Finance | |
| | 14.03.1993 | Insurance Section of EDB was transferred to Financial Institution Division, Ministry of Finance | |
| | 07.03.1995 | Tourism Section of EDB was transferred to Ministry of Industry and Primary Resources | |
| | 31.03.1995 | Transfer of some EDB officials to Development Bank of Brunei | |
| | 15.06.1996 | Weight and Measures Section of Ministry of Home Affairs was transferred to EPU | |
| | 01.01.1997 | EPU and EDB were merged together as Department of Economic Planning and Development (DEPD), Ministry Of Finance | |
| | 01.03.2001
2018
2019 until present
| Department of Economic Planning and Development, Ministry of Finance and Brunei Darussalam Economic Council (BDEC) Secretariat merged together as Department of Economic Planning and Development, under the Prime Minister's Office
Department of Economic Planning and Development was transferred under Ministry of Finance and Economy
Change of name: Department of Economic Planning and Development to Department of Economic Planning and Statistics
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