The impôt sur la fortune immobilière (IFI) is a French annual wealth tax that applies exclusively to real estate assets. Introduced on 1 January 2018, it replaced the broader Impôt de solidarité sur la fortune (ISF) and narrowed the tax base significantly.
For American and international buyers considering a purchase on the Côte d’Azur, understanding this tax is an essential part of any informed acquisition strategy. This guide explains who is liable, how the tax is calculated, and what obligations apply to non-residents owning property in France.
French Real Estate Wealth Tax – impôt sur la fortune immobilière (IFI) – Complete Guide
Reading time: ~10 min
- What Is the Impôt sur la Fortune Immobilière (IFI)?
- Who Is Required to Pay IFI in France?
- What Real Estate Assets Are Included in the IFI Tax Base?
- How Is IFI Calculated? Rates, Thresholds and the Progressive Scale
- Can Mortgage Debt Be Deducted When Calculating IFI?
- Are Shares in Real Estate Companies Subject to IFI?
- How and When Do You Declare and Pay IFI in France?
- IFI vs ISF: What Changed in 2018?
- IFI and Property Acquisition on the Côte d’Azur
- Moving Forward with IFI on the Côte d’Azur
- Frequently Asked Questions
What Is the Impôt sur la Fortune Immobilière (IFI)?
Legal framework and scope of IFI
The impôt sur la fortune immobilière (IFI) is established under Articles 964 to 983 of the French Tax Code (Code général des impôts), as published on Legifrance. It is administered by the Direction Générale des Finances Publiques (DGFiP) and declared annually through the official portal impots.gouv.fr.
The tax applies to natural persons, not legal entities, whose net taxable real-estate wealth exceeds €1,300,000 as of 1 January of the tax year. The threshold is assessed on the net value, meaning after deducting eligible debts, not on the gross value of assets.
The shift from ISF to IFI in 2018 represented a fundamental change in French wealth taxation. Under the ISF, financial assets such as equities, bonds, and life insurance contracts were included in the taxable base. The IFI excludes all of these. Only real estate assets and certain rights attached to them remain within scope. This distinction matters greatly for high-net-worth individuals who hold diversified portfolios: only the real property component is now assessed.
Who Is Required to Pay IFI in France?
Liability depends primarily on two factors: the value of net taxable real-estate wealth and the individual’s tax residency status. Any individual whose net real-estate holdings exceed €1,300,000 on 1 January is subject to IFI for that year, according to Service-Public.fr and the Ministry of Economy and Finance.
Residents and non-residents
The territoriality rules differ significantly between residents and non-residents. French tax residents are taxed on their worldwide real-estate assets, including properties located outside France. Non-residents, by contrast, are taxed only on French-sited real estate. This means that an American buyer who owns a villa in Beaulieu-sur-Mer and maintains their tax residency in the United States will be subject to IFI solely on the value of their French property, provided it exceeds the €1,300,000 threshold. Any applicable tax treaty between France and the United States may also affect how the tax is applied, and a qualified tax adviser should be consulted for individual situations.
Bon à savoir
Non-residents owning French real estate above the €1,300,000 net threshold are subject to IFI on their French assets only. Tax treaty provisions between France and the buyer’s country of residence may further influence the final liability. Always seek advice from a French notaire or a tax professional familiar with cross-border situations.
What Real Estate Assets Are Included in the IFI Tax Base?
The taxable base, known as the assiette fiscale, covers a broad range of real-estate holdings. Direct ownership of residential property, rental property, land, and buildings is included. Beyond direct ownership, shares or units in companies, whether French or foreign, are also included to the extent that their value represents underlying real estate, directly or indirectly. This rule applies to holding company structures, SCPIs (real estate investment trusts), and other vehicles where the asset content is predominantly real property.
Usufruct and bare ownership rights are also treated under IFI, with specific rules depending on the civil law arrangement in place, as detailed in the BOFiP under reference BOI-PAT-IFI-20-30-10. The real estate fraction of corporate shares is calculated proportionally, meaning only the portion of a company’s value attributable to real estate enters the IFI base.
Certain assets may be excluded or benefit from specific treatment. Professional property used as the primary asset of a business activity may qualify for an exemption under conditions defined in the BOFiP. Forestry and rural property can also benefit from abatements in specific circumstances. These exemptions are technical and subject to strict conditions; a notaire or tax specialist should assess eligibility on a case-by-case basis.
How Is IFI Calculated? Rates, Thresholds and the Progressive Scale
IFI progressive scale and décote
The IFI is calculated on the net taxable value of real-estate assets after deducting eligible debts. The progressive tax scale published by Service-Public.fr applies as follows:
| Net taxable real-estate wealth | IFI tax rate |
|---|---|
| Up to €800,000 | 0% |
| €800,001 to €1,300,000 | 0.50% |
| €1,300,001 to €2,570,000 | 0.70% |
| €2,570,001 to €5,000,000 | 1.00% |
| €5,000,001 to €10,000,000 | 1.25% |
| Above €10,000,000 | 1.50% |
For taxpayers whose net taxable real-estate wealth falls between €1,300,000 and €1,400,000, a rebate mechanism known as the décote applies to smooth the entry into the tax. The rebate is calculated as: €17,500 minus 1.25% of the net taxable real-estate wealth (P). This mechanism prevents a cliff-edge effect for those who marginally exceed the threshold.
Determining the net taxable value requires identifying the gross market value of all taxable assets as of 1 January, then deducting eligible debts. Deductible debts include mortgage loans, acquisition costs, and certain improvement or maintenance borrowings related to taxable property, as defined in the BOFiP. Proper documentation of these debts is essential, as the tax administration may challenge valuations or deductions during an audit.
Can Mortgage Debt Be Deducted When Calculating IFI?
Deductible mortgage and related debt
Yes, deductible debts play a central role in determining net taxable real-estate wealth. Mortgages and loans taken out to acquire, build, or improve a taxable property are generally deductible, subject to conditions set out in the French Tax Code and detailed in the BOFiP under BOI-PAT-IFI-20-30-10. The debt must be directly related to a taxable asset, and the lender must be an eligible counterparty under French tax rules.
Debt optimization is therefore a legitimate and commonly used approach in wealth planning for high-net-worth property owners. However, the rules governing which debts qualify are precise, and not all liabilities reduce the IFI base automatically. Loans between related parties, for instance, are subject to additional scrutiny. A tax adviser or notaire can help ensure that the debt structure is both compliant and efficient.
À retenir
The IFI is calculated on net taxable real-estate wealth, not gross value. Eligible mortgage debt and related borrowings can reduce the taxable base, but the conditions are strictly defined by the BOFiP. Accurate property valuation at 1 January and proper debt documentation are both critical to a compliant declaration.
Are Shares in Real Estate Companies Subject to IFI?
Shares in companies, whether held directly or through a holding structure, are included in the IFI base to the extent that their value is attributable to real estate. The real estate fraction of corporate shares is determined by comparing the market value of the company’s real-estate assets to its total asset value. Only that proportional fraction enters the IFI taxable base.
This rule applies to a wide range of vehicles, including SCPIs, civil real estate companies (SCI), and foreign holding companies that own French property. The inclusion of company shares with real estate content means that structuring a purchase through a corporate vehicle does not automatically reduce IFI exposure. In some cases, depending on the nature of the company’s activity and the proportion of real estate in its balance sheet, a holding company structure may have limited effect on the IFI base. Specialist advice is essential before choosing an acquisition structure for tax planning purposes.
How and When Do You Declare and Pay IFI in France?
Taxpayers whose net taxable real-estate wealth exceeds €1,300,000 must file Form 2042-IFI, a specific annex to the standard income tax return. This form, available on impots.gouv.fr, collects detailed information on all taxable assets, their valuations, and any deductible debts. The annual wealth declaration follows the same filing calendar as the income tax return, with deadlines varying depending on whether the return is filed online or on paper and on the taxpayer’s department of residence.
Payment of IFI can be made online through the personal tax account on impots.gouv.fr, via the official tax mobile application, or by other methods detailed on the DGFiP portal. The tax notice (avis d’imposition) issued after filing includes all relevant payment information. For non-residents, specific filing rules may apply, and the DGFiP telephone helpline (0809 401 401) can provide guidance on administrative procedures.
IFI vs ISF: What Changed in 2018?
The replacement of the ISF by the IFI on 1 January 2018 fundamentally changed the scope of French wealth taxation. Under the ISF, all assets, including financial investments, equities, bonds, and business assets, were potentially included in the taxable base, subject to exemptions. The IFI restricts the taxable base to real-estate assets only, excluding financial portfolios and most business assets from the calculation.
For many high-net-worth individuals, this change significantly reduced their wealth tax exposure, particularly those holding substantial financial assets alongside real property. For buyers focused on French real estate, however, the IFI remains a meaningful consideration, especially in markets such as the Côte d’Azur where prime property values regularly exceed the €1,300,000 threshold. Understanding the IFI is therefore a practical necessity, not a theoretical exercise, for anyone acquiring property in this segment.
IFI and Property Acquisition on the Côte d’Azur
The Côte d’Azur is one of France’s most sought-after real estate markets, with prime properties between Nice and Monaco frequently valued well above the IFI entry point. For American and international buyers acquiring a residence in this area, the IFI is a factor that deserves careful attention before finalising any transaction.
At Riviera King, we work alongside qualified notaires and tax professionals to ensure that our clients have access to the information they need to make fully informed decisions. While we do not provide tax or legal advice, we can guide you toward the right specialists and help you understand the broader context of property ownership in France. If you are considering a purchase on the Côte d’Azur and would like to discuss your project, we invite you to visit our Côte d’Azur real estate team to learn more about how we support buyers throughout the acquisition process.
Moving Forward with IFI on the Côte d’Azur
The impôt sur la fortune immobilière (IFI) is a targeted, progressive annual tax on net real-estate wealth in France. It applies to individuals, residents and non-residents alike, whose net taxable real-estate holdings exceed €1,300,000 on 1 January of the tax year. The rates range from 0.50% to 1.50% depending on the value of the taxable base, and a décote applies for those just above the threshold. Deductible debts, proper asset valuation, and the treatment of company shares are all technical points that require professional guidance. Filing is done via Form 2042-IFI, in conjunction with the annual income tax return, through the DGFiP’s digital platforms.
For international buyers in the luxury segment, particularly those considering prime property on the Côte d’Azur, the IFI is an integral part of the ownership landscape. Engaging a notaire and a tax adviser early in the acquisition process is the most reliable way to ensure full compliance and sound wealth planning. The Riviera King acquisition support services can help connect buyers with the right specialists throughout this process.
FAQ – Frequently Asked Questions
Does the IFI apply if I own a property in France jointly with my spouse?
Yes. IFI is assessed at the household level, meaning that assets owned jointly by spouses, civil partners (PACS), or cohabiting couples are combined to determine whether the €1,300,000 threshold is reached. The declaration is filed jointly for the household.
Is my main residence subject to a reduction for IFI purposes?
Under current rules, a 30% abatement (property abatement) applies to the value of the taxpayer’s principal residence when calculating the IFI base. This reduction is applied automatically and is one of the most significant adjustments available to owner-occupiers.
If I own a property through a French SCI, does the full value of the SCI enter the IFI base?
Not necessarily. Only the real estate fraction of the SCI’s value is included in the IFI base. If the SCI holds other assets alongside property, only the portion attributable to real estate is taxable. The calculation requires a precise analysis of the company’s balance sheet.
Can I use the official IFI simulator before filing?
Yes. The French administration provides an IFI simulator on Service-Public.fr that allows taxpayers to estimate their IFI liability based on their asset and debt data. It is a useful starting point, though it does not replace a formal declaration or professional advice.
What happens if I underestimate the value of my property in my IFI declaration?
The DGFiP has the authority to challenge property valuations and may reassess the declared value. Undervaluation can result in additional tax, interest, and in cases of deliberate omission, penalties. Using a recognised valuation method and keeping supporting documentation is strongly recommended.
Is there a tax treaty between France and the United States that affects IFI for American buyers?
France and the United States have a tax treaty, but its scope regarding wealth taxes is limited. American buyers should consult a tax professional familiar with both French and US tax law to understand how their specific situation is treated under the applicable treaty provisions.