In 2024, the event took place in Foz do Ignaciu (Brazil) on the theme "Mechanisms for the prevention and resolution of conflicts and promotion of voluntary compliance" [3] CIAT also organizes an annual international Technical Conference in October.

The next scheduled Technical Conference, focused on "Avoidance and general anti-abuse rules: casuistry and tax justice", which will be held in Lima, Peru, on October 15-17, 2024.

Until 1977, CIAT's activities were mainly directed to the organization of international meetings (annual assembly, conferences and technical seminars), the publication of newsletters and the maintenance of a library specialized in tax issues.

In that year, a Technical Cooperation Agreement was signed with the Federal Republic of Germany, which established a permanent mission to CIAT with significant benefits for the organization and its member countries.

[7] In 1983, the Regional Technical Cooperation Project on the Single Register of Taxpayers and Current Account, TIN/CA, for Central America and the Caribbean, financed by IDB and executed by CIAT, was also launched.

The volume and scope of CIAT's activities, as well as the number of member countries and associate members from different continents, has expanded significantly since its creation, making CIAT the largest organization worldwide that brings together tax administrations and has signed cooperation agreements with international public and private entities specialized in tax matters, such as the nine organizations that make up the NTO, or the GIZ of Germany.