The Swiss Council of States (the upper house of parliament) announced that it ratified the pending protocol to the 1966 income and capital tax treaty with France on 30 May, 2024.

The Switzerland-France protocol was first signed on 27 June, 2023, and the recent protocol is the fifth amendment to the treaty. It aims to prevent double taxation and tax evasion in income and property taxes.

It will become effective once the ratification instruments are exchanged. The treaty will be effective from 1 January of the year following its enactment.