Property taxes are soaring. In ten years, between 2014 and 2024, it has increased by 37% on averageaccording to the UNPI. A good reason to (finally) read your opinion carefully, even if it is not always easy to decipher.
Exemptions linked to age or work, overestimated rental value… An oversight can cause you to miss out on a reduction of several hundred euros. You might as well avoid paying for nothing.
Exemptions not to forget
Start by checking your eligibility for full or partial relief. The situations are not that numerous, but the savings can be substantial.
THE over 75 years old with modest income (reference tax income less than 12,704 euros for a share in 2025) benefit from a total exemption for their main residence, like holders of the ASPA (solidarity allowance for the elderly), or the AAH (allowance for disabled adults) subject to resource conditions.
On the real estate side, new housing can be exempt from property tax for two years completely, or partially depending on the vote of the municipality. Energy saving work in a home more than ten years old also entitles you to a temporary exemption decided locally. The request, accompanied by supporting documents, must be sent before January 1 of the first year of exemption, for a maximum of three years. Other reliefs exist in the event of involuntary vacancy of accommodation intended for rental or proximity to a Seveso-type risk installation.
Rental value, an area of error
We rarely think about it, but the cadastral rental value deserves your attention. It recently made the news when Bercy decided, in November 2025, to automatically reassess the rental value of 7.4 million housing units by correcting the “comfort elements» not declared (water, heating, sanitary facilities, etc.). Faced with outcry, the operation was suspended until spring 2026.
But if adding a bathroom increases the rental value, the opposite is just as true. Inaccurate surface area, outbuildings counted twice, or even accommodation declared “in good condition» despite obvious dilapidation: so many legitimate reasons to contest and obtain a downward revision.
To see clearly, ask the property tax center for the cadastral evaluation sheet for your property. It details the criteria used for the calculation. Please note, shipping may take several weeks.
In the event of an anomaly – forgotten exemption or overestimated rental value – send a complaint via secure messaging in your personal space on impots.gouv.fr.
Don’t miss the deadline
Meeting the deadline is crucial. The claim must be received before December 31 of the year following the imposition. In other words, you can still contest the 2024 property tax until December 31, 2025. For the 2025 tax, the deadline will be December 31, 2026. After this point, even a blatant error may be refused.
Once the complaint is filed, the tax authorities have several months to examine your request. The procedure can be long, but prove profitable. Correcting an error can represent several hundred euros in savings.
