Switzerland Confirms Completion of Internal Procedures for the Entry into Effect of BEPS MLI for Tax Treaty with Argentina

According to an update from the OECD, Switzerland deposited on 28 May 2026 its notification confirming the completion of its internal procedures for the entry into effect of the Multilateral Convention to Implement Tax Treaty Related Measures to Prevent Base Erosion and Profit Shifting (MLI) for Switzerland's covered agreement (tax treaty) with Argentina. Notifications confirming the completion of internal procedures are required because Switzerland has taken the reservation that for the ML…