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In France, is it compulsory to declare your income to the tax office?
Model-written, not yet read by a native reader.
Correct answer: Yes, it is compulsory, even if you do not work. Yes, declaring income is compulsory, even without a job. It applies to everyone over 18 who lives in France. If you do not declare, you risk financial penalties.
Sources: Sheet “L'impôt en France et la déclaration de revenus” (French), read on 21 October 2026. Answer written by Hexaciv from this source. Hexaciv is an independent preparation tool. It is not an official website, is not linked to any government body and does not give legal advice. The authoritative source is the Ministry of the Interior's, cited on this page.
The four choices and why
- ✓ Yes, it is compulsory, even if you do not workOui, c'est obligatoire, même si on ne travaille pasCorrect answer. Yes, declaring income is compulsory, even without a job. It applies to everyone over 18 who lives in France. If you do not declare, you risk financial penalties.
- ✗ No, each person chooses whether to do itNon, chaque personne choisit de le faire ou nonDeclaring income is compulsory: not doing it can lead to financial penalties.
- ✗ Yes, but only for French citizensOui, mais seulement pour les citoyens françaisIt applies to people who live in France, French citizen or not.
- ✗ No, only if you have a jobNon, seulement si on a un emploiEven with no income, you still have to file a return (you write 0 euro).
How it reads on exam day
The exam is in French, so this is the question you will see: « En France, est-il obligatoire de déclarer ses revenus aux impôts ? ». Learn the English idea above and the French words in the options.
This question comes from the naturalisation version of the exam (Ministry list read on 14 October 2026). The Ministry's wording: “Déclarer ses revenus aux services fiscaux est :”.
Where the Ministry explains it
Sheet “L'impôt en France et la déclaration de revenus” (French).
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