Tax Residence: The Decisive Point
Article 4 of the 1989 treaty defines residence by reference to domestic law: a person is a resident of the State where they are liable to tax by reason of their domicile, residence, place of management or a similar criterion. Where both States simultaneously claim residence, the treaty applies a cascading tie-breaker rule. The order is strict: first the State of the permanent home; failing that, the State of the centre of vital interests, meaning the closest personal and economic ties; then, failing that, the State of habitual abode; then nationality; finally, if no criterion decides, a mutual agreement between the two administrations. This hierarchy is crucial: nationality comes into play only as the second-to-last resort. An Italian national living in France will, in the vast majority of cases, be a French tax resident within the meaning of the treaty, regardless of their passport. Conversely, a French national whose home and vital interests have shifted to Italy may cease to be a French resident despite their nationality. Residence litigation is among the most active in French-Italian matters, and its documentary preparation determines the outcome of any reassessment.