DDTC is a research, technology, and knowledge-based tax institution and a centre of several business activities units, consultation services (DDTC Consulting), a center for review and research (DDTC Fiscal Research), taxation journals (DDTC Working Paper), a training centre (DDTC Academy), a taxation database platform (Perpajakan DDTC), a library (DDTC Library), and taxation news portal (DDTC News).