The report Tax Capacity Building: A Practical Guide to Developing and Advancing Tax Capacity Building Programmes aims to assist tax administrations globally in advancing their tax capacity building programmes by describing good practices, by looking at tools and approaches that improve co-ordination, and by sharing knowledge. While the report primarily focuses on the development of a tax administration’s own capacity-building programme, elements of this report may also prove useful to those providing other forms of assistance, for example, through the support of programmes undertaken by the domestic development agency or through the support of regional or multilateral initiatives.