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Official tool lets you estimate your French tax for 2025 income
Simulator can help taxpayers check what payments may be due later in year
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Can the French tax office seize money from my bank account?
This can happen if you leave such bills unpaid, usually after several reminder letters
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2025 French income tax declarations open April 9, 2026
Declaration period usually runs six to nine weeks dependent on where the declarant lives
How France’s tax inspectors use technology to track fraud and evasion
The use of Google satellite images to spot undeclared pools is just one way in which IT is being used
Tax inspectors regularly use technology to find fraudsters and tax dodgers, a report on the activity of the Finance Ministry shows.
One element is the recent use of Google satellites in certain areas to track unregistered pools.
The ministry expects €40million to be recovered from this, once the whole country has been checked.
The system can also be used to check extensions, garages and other unexplained buildings that do not match tax service declarations, though it has been found to be harder to analyse these.
Pools should be declared to the tax office within 90 days of completion.
This will add to the property value used to work out bills for taxe foncière (and taxe d’habitation if it is a second home).
Other ways inspectors use technology include:
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‘Robot trackers’ (automatic web-searching programmes) of property transactions.
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These match details with tax declarations to see if people have not declared for IFI property wealth tax, or have under-declared property values;
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Use of data in the Gérer mes biens immobiliers service, which allows landlords to see all their properties linked to their online tax account (but can also help inspectors check correct declarations for IFI, or of rents);
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Looking at public social media posts, eg. to check if someone’s lifestyle is unusually luxurious.
Related articles
Swimming pools, sheds: Tax due on installation is rising in France
New shed or pool at your French home? Remember the taxe d’aménagement
Can I add a swimming pool to French home without paying more in tax?
