Tax Treaty Case Law around the Globe 2025

1. Introduction

The Argentine Federal Administrative Court of Appeals (the Court) in the case Lutz Juan Jacobo v. DGI upheld the application of Art. 30 of Decree 127/96S. 42allowing disregarding a financial arrangement that was superficially shielded by the double tax treaty between Argentina and Austria (Argentina-Austria DTT) in force at that time. This landmark ruling delves into critical issues such as tax avoidance, evasion, and abuse of rights as well as the nuanced application - and potential misuse - of tax treaties. It also highlights the economic substance doctrine and the influence of a supreme court landmark case Molinos that is a milestone related to treaty shopping.

As international tax planning becomes increasingly sophisticated by employing seemingly legitimate structures to minimize tax liabilities, doctrinal and judicial debates surrounding the limits of tax avoidance and the appropriate use of tax treaties have intensified. In this context, the Lutz Juan Jacobo (LJJ) case is a pivotal precedent clarifying the scope of Art. 30 of Decree 127/96 and defining when treaty benefits unacceptably become abusive tax practices.

This provision addresses anti-abuse measures related...