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French civic exam 2026, Rights and duties

Is it mandatory to file a tax return every year in France?

An official question of the French civic exam, with its answer and the official text that proves it, in French and English.

Naturalisation no. 111

Est-ce obligatoire de déclarer ses impôts chaque année en France ?

Is it mandatory to file a tax return every year in France?

Answer. Yes. Everyone over the age of 18 who lives in France must declare their income every year.

Oui. Toute personne de plus de 18 ans qui habite en France doit déclarer ses revenus chaque année.

Filing a return is mandatory even if a person does not work or earns very little. There is one exception, a young adult can remain attached to their parents' tax household. Income from the previous year is declared every spring.

The official text that proves it

« Toute personne de plus de 18 ans, résidant en France (citoyen français ou pas) doit déclarer ses revenus, même si ses revenus sont faibles ou nuls (il faut indiquer “0 euro”). »

Everyone over the age of 18 who resides in France (whether a French citizen or not) must declare their income, even if that income is low or nonexistent (in that case, they must indicate zero euros).

In French, with its English meaning. read the official sheet

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Questions from the official lists of the French Ministry of the Interior, quotations from the civic training sheets, the Constitution and the 1789 Declaration, Licence Ouverte Etalab 2.0. This is not a government site. The official sheets are free, in French, on formation-civique.interieur.gouv.fr.