- A house that's badly damaged but still standing generally remains liable for taxe foncière — relief requires the structure itself to be destroyed or rendered fundamentally unusable, not just uninhabitable
- Landlords with a let property destroyed or made unusable have a reasonable case for relief under the vacancy rules (Article 1389 CGI) — but this route doesn't exist for an owner-occupied main home
- Any change to a property's condition — destruction, demolition, reconstruction — must be declared to the tax authority within 90 days, using a specific form
- For wealth tax (IFI), a property destroyed before 1 January is valued in its post-fire state on that date, not its pre-fire value — and the right to a future insurance payout is not itself counted as a taxable asset
If wildfire has damaged or destroyed a French property you own, the tax consequences don't stop at the insurance claim. Two separate taxes are affected — taxe foncière and, if you're liable for it, IFI (wealth tax) — and the rules on both are more specific, and in places more counterintuitive, than most owners expect. If you haven't yet dealt with the insurance side, see our guides on how wildfire damage is actually covered and whether the payout itself is taxable first.
A note before we start: some of what follows involves applying general tax rules to a fire-damage scenario where no specific official guidance exists. Where that's the case, it's flagged clearly below — treat those points as the likely position, not settled certainty, and confirm with an accountant or notaire before relying on them for anything significant.
Taxe foncière: being unusable isn't enough
This is the point most owners get wrong, and it cuts against what you'd reasonably assume.
Taxe foncière applies to propriétés bâties — built property — under Article 1380 of the CGI. A property only stops being treated as "built" for this purpose, and falls instead under the much lighter tax on unbuilt land (Article 1393), where destruction is total, or where damage is severe enough to affect the building's gros œuvre — its core structure — so fundamentally that the whole building becomes unfit for any use at all.
This is a real, decided point, not a theoretical one. The Conseil d'État ruled in February 2021 that a building merely rendered unusable on the assessment date — without its core structure being compromised — remains fully liable for taxe foncière. In plain terms: a house gutted by fire but still structurally standing may well still generate a full tax bill, even though nobody could safely live in it.
If you're a landlord, and the property was let, you have a more workable route: Article 1389 of the CGI provides relief for vacancy that's beyond the owner's control, lasting at least three months, affecting the whole property (or a genuinely separate, independently lettable part of it). Fire-forced vacancy is about as clear a case of "beyond the owner's control" as exists, so this is a reasonable basis for a claim.
If you live in the property yourself, this relief doesn't apply at all — Article 1389 is written for let property, not owner-occupied homes. No specific disaster-relief provision for taxe foncière on an owner-occupied home was found in the tax code for this situation. The remaining option would be a discretionary hardship request (remise gracieuse) to your local tax office — but this is a general administrative mechanism, not a guaranteed disaster relief, and shouldn't be assumed to succeed.
Declaring the change: a 90-day deadline
Whatever happens to the property, any change to its condition — full destruction, demolition, or later reconstruction — needs to be declared to the tax authority within 90 days of the change under Article 1406 of the CGI.
The relevant form is the Cerfa 10517 ("modèle IL"), filed via the Gérer mes biens immobiliers service on the impots.gouv.fr site. If the building is later fully rebuilt, that's treated as a separate declaration again — the IL form for the demolition, and then a fresh new-construction declaration (the H1 form, for a house) once rebuilding is complete.
Missing this deadline can expose you to a penalty under Article 1729 C, and the tax office can also correct your assessment retroactively under Article 1508 if a change wasn't properly declared. Given everything else going on after a fire, this is an easy step to let slip — worth noting on a calendar early rather than leaving it to memory.
Wealth tax (IFI): the property's value collapses, and the insurance claim doesn't replace it
If you're liable for IFI (broadly, French real estate assets worth over €1.3 million — see our full IFI guide for the thresholds, rate scale, and main-residence discount), a fire has a real effect on your valuation — and a genuinely favourable one, though it isn't spelled out anywhere as a specific rule for this situation.
IFI values property at its market value on 1 January (Article 973). If your property was destroyed or badly damaged before that date, the honest market value on 1 January is its post-fire value — in practice, close to the value of the land alone, since that's genuinely what a buyer would pay for it on that date. This isn't a special disaster provision — it follows from applying the ordinary "value on 1 January" rule to the property's actual condition on that date. The burden is on you to justify the reduced figure, so it's worth keeping the insurer's damage assessment, any official fire/emergency-service records, and photographs, in case the valuation is ever queried.
Here's the part that's easy to miss: your right to a future insurance payout is a monetary claim against your insurer, not real estate — and IFI's tax base (Article 965) only covers real estate assets and real-estate-linked rights. A receivable from an insurer doesn't fall inside that base, whether or not you've actually been paid yet by 1 January. So in the tax year of the fire, you can end up with a lower IFI bill on that property: the building's value has collapsed, and the compensation you're owed for it isn't taxed as a substitute. No specific BOFiP guidance addresses this exact point — this is a reasoned application of what Article 965 does and doesn't cover, not a stated administrative ruling, so treat it as the likely position rather than guaranteed.
One thing worth knowing for the following year: once you actually receive the insurance money and spend it rebuilding, the value returns to your estate in the ordinary way at the next 1 January — this isn't a permanent reduction, just a genuine, temporary one for the year the property was out of action.
Common mistakes
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Assuming an uninhabitable house automatically stops attracting taxe foncière. Unless the core structure itself is destroyed, it generally remains taxable, even if nobody could safely live there.
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Not realising owner-occupiers have no vacancy-relief route. Article 1389 relief is available to landlords with a let property, not to an owner living in the home themselves.
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Missing the 90-day declaration deadline. Any change in the property's condition needs declaring within 90 days, using the correct form, or you risk a penalty and a retroactive correction.
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Not adjusting the IFI valuation to reflect the property's actual condition on 1 January. A destroyed or badly damaged property is valued at what it's genuinely worth on that date — not its original, pre-fire value.
Frequently Asked Questions
Do I still pay taxe foncière on a house that's been destroyed by fire?
If the building is totally destroyed, or its core structure is so damaged that the whole building is unfit for any use, no — it falls out of the tax on built property. If it's merely uninhabitable but still structurally standing, it generally remains taxable, based on a 2021 Conseil d'État decision.
Can I get taxe foncière relief if my rental property burns down?
You have a reasonable basis for relief under the vacancy provision (Article 1389 CGI), since fire-forced vacancy is clearly beyond your control. This route is specifically for let property, though — it doesn't apply to a home you live in yourself.
How long do I have to tell the tax office my property has been destroyed?
Ninety days from the change, using the Cerfa 10517 "modèle IL" form via the Gérer mes biens immobiliers online service. Missing this can lead to a penalty and a later correction of your assessment.
How is a fire-destroyed property valued for wealth tax (IFI)?
At its actual market value on 1 January — which, if the property was destroyed or badly damaged before that date, is its post-fire value, in practice often close to the land value alone. You'll need to be able to justify the reduced figure if it's queried.
Does an insurance payout for my destroyed property count towards my wealth tax bill?
The right to a future payout is a monetary claim, not real estate, so it generally falls outside the IFI tax base regardless of whether you've been paid yet. Once you receive and spend the money on rebuilding, the rebuilt value returns to your estate at the next assessment date.
For more on this topic, browse our Deductions, Grants & Financial Support category.
Sources: Article 1380, Code général des impôts (scope of taxe foncière on built property) · Conseil d'État, 3 February 2021, n° 434120 (unusable but structurally intact property remains taxable) · Article 1389, Code général des impôts (vacancy relief) · BOI-IF-TFB-40 (90-day declaration requirement, Cerfa 10517) · Article 1406, Code général des impôts · Article 973, Code général des impôts (IFI valuation at 1 January) · Article 965, Code général des impôts (scope of IFI tax base)