With the aim of having presentations and practical cases discussed during the General Assemblies, working sessions serve as support for the adoption and sustainability of measures to strengthen participating tax administrations, the General Assembly issues a resolution “recommending” given practices or actions, which become technical guidelines, based on the consensuses reached in discussing the different topics.

59th Santiago, Chile, 2025

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• The role of the Tax Administration in the fight against tax evasion and tax crimes

No. 58 Foz do Iguaçu, Brasil, 2024

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• Prevention and conflict resolution mechanisms and promotion of voluntary compliance

Nº 57 Punta del Este, Uruguay, 2023

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• The Tax Administration as a protagonist of the country's development strategy

Nº 56 Argentina, 2022

• The current challenges of international taxation: exchange of information as a tool to combat tax evasion and international tax avoidance
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55th Guatemala, 2021

• Review of the basic pillars for the operation of the Tax Administration, following technological innovation in the digital economy era.
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54th, Dominican Republic, 2020 / Virtual Administrative Session

• Technological Innovation in the Tax Administration
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