Italy has signed the multilateral instrument on 7 June 2017, aiming to facilitate the implementation of tax related measures to Prevent Base Erosion and Profit Shifting (MLI).

At the signing ceremony, Italy introduced its 84 tax treaties with other jurisdictions that would be modified by the MLI. In addition to the list of treaties, Italy has also submitted a provisional list of reservations and notifications (MLI items) relating to the various provisions of the MLI. Italy has made partial or complete reservations about a number of MLI articles. The most important change, which will affect all Italian tax treaties, relates to the introduction of a principal purpose test (PPT).