Administrative assistance in tax matters
Subsidiarity, a principle without substance ?
Adrien Pasquarello
— 23 October 2025
The principle of subsidiarity does not require a state to consult the taxpayer prior to requesting international administrative assistance in tax matters, as long as its domestic law does not require it to do so. This was the ruling of the Federal Court on the legal question of principle raised in case 2C_352/2024 (intended for publication). In 2020, the Israeli Tax Information Exchange Service requested the FTA to provide it with various information (identity of account holders, identity of beneficial[...]