The IFI wealth tax on foreign residents' French real estate

The wealth tax on real estate (IFI) applies to property located in France belonging to people whose tax domicile lies outside France: that is its territoriality rule, and it is enough to bring many owners living abroad within its scope. A legal threshold conditions its trigger: assessed on gross assets under the rules, then on assets net of certain debts for the calculation, it can only be verified against your own figures, never against a generic article. What this guide sets out are the mechanisms: tax base, exemptions, filing, and the interaction with the tax treaty. The final arbitration belongs to a partner tax adviser.

Why does the IFI affect owners domiciled abroad?

The logic of the tax is territorial. A taxpayer domiciled in France is taxed there on their entire real estate wealth, wherever it sits. A taxpayer domiciled outside France is taxed only on their French real estate: your nationality, the length of your stays and the currency of your income do not matter, the connecting factor that counts is your tax domicile. It is also the same criterion that organises your French income-filing obligations.

The trigger of the tax obeys a legal threshold, which no generic article can quantify on your behalf. That threshold is assessed at household level under the rules applying to your situation, first on the gross value of the French real estate assets, then the tax is computed on the net value, after deductible debts are taken into account under the prescribed conditions. Two practical consequences follow: estimate your wealth every year rather than once and for all, and document the value of properties and debts as you go, because that file is what will support the declaration when the time comes.

What goes into the tax base: properties, shares, debts?

Three families of elements make up the base. Directly held properties, first: any real estate located in France, flat, house, land, parking space or commercial premises, whatever its use, occupied by you, let or vacant, enters at its market value assessed under the rules in force. Shares in companies, next: specific mechanisms bring into the base all or part of the rights you hold in companies whose assets consist of real estate, under rules that differ notably according to whether the company is subject to corporate tax. Debts, finally: certain ones are deducted from the base, borrowings taken out for acquisition or expenses incurred for the repair and improvement of the property, under strict conditions of existence, maturity and connection; where company shares are involved, deductions follow separate rules.

The value used deserves a word. It is assessed under the rules in force, from market references, and it is prepared: dated comparables, a value file for each property, or a professional valuation for unusual assets, make the best defence in the event of an audit. For company shares, the value follows the company’s own rules, which do not merge with the value of the properties it holds. These distinctions matter: they are what move the base, long before any debate on the detail of the rules.

The table below summarises the main notions and what they require settling with an adviser.

Notion	Indicative treatment	To settle with an adviser
Directly held property	Enters the base at market value	Valuation, notably in case of joint ownership or usufruct
Shares in a real-estate company	Enters the base under the rules applying to the company	Nature of the company and share of real estate assets
Debts and charges	Deductible under strict conditions	Reality, maturity and connection of each debt
Business property	Outside the base if the conditions are met	Business character within the meaning of the texts
Main residence allowance	Provided for by the rules for a main residence	Qualification, rarely compatible with a tax domicile abroad

Which properties can leave the base?

The most structuring exemption concerns business properties: buildings qualified as professional by the texts leave the base when the conditions are met, notably when the property is assigned to the owner’s activity or to that of a company operating it. This qualification follows precise rules of allocation and operation: it is prepared in advance, rarely after the fact.

Other mechanisms play according to the nature of the holdings: allowances provided by the rules on certain categories of property, a specific treatment for split interests, usufruct and bare ownership being distributed between their holders under dedicated rules. Finally, location decides: only French real estate enters the non-resident’s base, which makes the connection of each property, and of each company share, decisive. None of these doors opens without examination: that is the work of a partner tax adviser, who compares your holdings with the actual conditions, year after year.

How do you file and pay the IFI from abroad?

The filing takes place together with the income tax return, under the arrangements in force for taxpayers domiciled outside France: a single form combines both parts, and the deadlines align with those of your annual French return, to be confirmed each year with your adviser or the administration. The declaration describes the wealth held on the first of January: nature of the properties, values used, debts deducted, with their supporting documents kept on file.

Prepare that deadline as an annual wealth review: at income tax return time, list the year’s changes, acquisitions, disposals, completed works, loan repayments, and update the value file. That habit turns a filing constraint into a steering tool: every year you know where your French portfolio stands, and what the coming year will change.

Payment is organised from a distance, ideally by direct debit from an account that can be debited in euros: our guide on opening a non-resident bank account helps structure that account for all French debits, IFI, local taxes and income tax. If an error slips into the return, in either direction, the answer is documentary before it is contentious: an amended return or a claim follows the ordinary avenues, and a partner tax adviser knows how to steer that course.

How does the tax treaty interact with the IFI?

Tax treaties generally recognise France’s right to tax real estate located on its soil: the IFI therefore remains due in France, even when your country of residence levies its own wealth tax alongside. The treaty then organises their coexistence according to its method, exemption or credit, and that method changes the final cost of the tax for you. The differences between treaties are significant: our country-by-country residence guides detail the interaction specific to each country, and the method for reading these texts is the subject of our article on reading your tax treaty.

You can also browse all the articles in the Journal’s Financing & tax category, where the IFI sits alongside local taxes and rental income.

A real estate portfolio is a living whole: acquisitions, works and changes of residence constantly alter its tax profile. If you would like to locate your own situation, the personal study offered by French Realty helps set the frame, identify the points to settle and point you towards the right partner tax adviser, with your dedicated contact.