The guide has been designed to support all revenue bodies, from those that are in the early stages of developing comprehensive service delivery programs to those with mature programs in place. While it focuses on the revenue body’s role in tax administration it acknowledges that some revenue bodies have a broader set of responsibilities, for example, in the administration of some social policies. This guide has not explored how such roles should integrate at a broader demand management level and revenue bodies will need to assess this issue, if relevant, having regard to their individual circumstances.