The purpose of the Association is to promote the improvement of tax administration in all its aspects within the Commonwealth with particular emphasis on developing countries. To this end the activities of the Association may include:
- holding meetings of technical and administrative personnel in tax administration for the exchange of ideas and experiences;
- organising seminars, workshops and training courses on aspects of tax administration; collecting, analysing and disseminating information on tax administration;
- providing directly or, collaborating with, and generally facilitating, the work of bilateral and multilateral agencies providing technical assistance and research facilities in the field of tax administration;
- generally carrying out functions related to the overall improvement of the capabilities of tax administrations through functional co-operation between and among Commonwealth countries.
(Article 2 of CATA's Constitution)