The Regional Tax Group manages the taxes for the Schieland & Krimpenerwaard and Delfland District Water Control Boards. It also handles taxes for the for the municipal authorities of Delft, Schiedam and Vlaardingen. Additionally, the RBG is responsible for implementing the WOZ law for these municipalities.
The Regional Tax Group has the form of a community scheme. This means it is an independent government body with its own management board. The Executive Committee members of the water boards and the municipal authorities together form the management board and the Executive Committee.