France–Italy Tax Treaty: Where Are You Taxable?

Before calculating any tax, you need to answer one fundamental question: where are you taxable? This is step zero of any move to Italy, and it is precisely what the France-Italy tax treaty governs — the Venice Convention signed on 5 October 1989, published in France by decree no. 92-422 of 4 May 1992. Once you become a tax resident in Italy, you are in principle taxable on your worldwide income in Italy. But how do you determine whether you truly are? And what happens if France also considers you a resident? This guide explains the criteria, the treaty tie-breaker cascade, and what you actually need to declare.

Are you a tax resident in Italy? A 4-point checklist

Before diving into the legal details, here is a practical tool to quickly assess your situation. Tick the criteria that apply to your case:

The 3 criteria for Italian tax residency

Italian tax law defines the tax residency of an individual through three alternative criteria, set out in Article 2 of the TUIR (Testo Unico delle Imposte sui Redditi). It is enough for just one to be met during the greater part of the tax year for a person to be considered a tax resident in Italy.

1. Registration with the anagrafe

The anagrafe is the municipal civil status and population register. Once you are registered there, the Italian tax authority presumes you are a resident, even if you spend part of the year abroad. Registration therefore has major tax consequences: it automatically triggers Italian tax residency for the entire current year. In my experience, many foreign buyers register with the anagrafe in order to benefit from the Prima Casa Bonus without realising that they thereby become full Italian tax residents.

2. Domicile in the civil-law sense

Domicilio corresponds, under the Italian Civil Code, to the place where a person has established the principal seat of their affairs and interests. This is a qualitative criterion: it may be the place where your economic, professional, or personal activities are concentrated. A foreign entrepreneur who runs their business from Milan, even while spending fewer than 183 days in Italy, may be classified as an Italian tax resident.

3. Habitual residence (residenza)

Residenza refers to your habitual and effective place of stay — in other words, where you actually live on a stable basis. The reference threshold is 183 days per year (184 in a leap year), representing the majority of the Italian tax year (which coincides with the calendar year). This time-based criterion is the one most commonly relied upon in practice.

The France-Italy tax treaty of 1989: the tie-breaker cascade

What happens if you are considered a tax resident in both countries at the same time? This is where the France-Italy tax treaty of 5 October 1989 comes in. Its Article 4 sets out a cascade of tie-breaker criteria, applied in order, to designate a single State of treaty tax residence.

The Article 4 cascade: step by step

In practice, the vast majority of dual France-Italy residency situations are resolved at step one or two. A couple who sell their Paris apartment to settle in Florence, with children enrolled in school in Italy and local employment, will unambiguously be Italian tax residents under the treaty.

Eliminating double taxation: the tax credit

The 1989 treaty does not mean you are never taxed in both countries. Certain income — such as rental income or some dividends — may be taxed in the source State. To prevent Italy-France double taxation, the treaty provides a tax credit mechanism: tax paid in the source State is offset against the tax due in the State of residence. In concrete terms, if you are a tax resident in Italy and receive rental income from a property in France, you will pay tax in France and then deduct that tax from your Italian liability on the same income.

What you need to declare, and where

Once your Italian tax residency is established, your filing obligations are clear and entirely manageable. Here is what you need to know.

Declaring worldwide income in Italy

As an Italian tax resident, you declare all your income, regardless of its geographical source, in your Italian tax return (Modello 730 or Modello Redditi PF). This includes any income arising in France: salaries, rental income, pensions, dividends, and so on. The return must be filed each year, generally by 30 November for the Modello 730.

The Quadro RW: declaring your foreign assets

One of the most frequently overlooked obligations for new Italian tax residents is the Quadro RW declaration (formerly Monitoraggio Fiscale). This form, attached to the income tax return, lists all your financial and asset holdings held abroad: bank accounts in France, life insurance policies, securities portfolios, shareholdings in foreign companies, and so on. It also serves as the basis for calculating IVAFE (a tax on foreign financial assets, at 0.2%) and IVIE (a tax on foreign real estate, at 0.76%).

Foreign bank accounts: full transparency required

Since the automatic exchange of information between France and Italy came into force (under the OECD CRS standard), the Italian tax authority is notified of your French bank accounts. Failing to declare them can result in penalties of up to 30% of undeclared assets in the most serious cases. In practice, however, this is simply an annual administrative formality.

What about France? Filing as a non-resident

If you are no longer a French tax resident, you must notify the French tax authority and file a final return as a resident for the year of departure, followed by non-resident returns (form 2042) covering only your French-source income. The Italian tax residency certificate — issued by the Agenzia delle Entrate — will often be requested by the French authorities to confirm your change of tax residency.

To complement this article, you will find practical information on the favourable tax regimes available to Italian tax residents, including the new-resident Flat Tax and the special regime for retirees benefiting from the 7% flat tax.

Favourable tax regimes for residents in Italy

For a deeper look at all the tax obligations and benefits linked to your move, see our complete guide to property taxes in Italy, which covers IMU and TARI in detail.

Being a tax resident in Italy: the most common mistakes

In my experience helping people settle in Italy, I regularly come across the same tricky situations. Here are a few of the most common:

• Registering with the anagrafe without thinking through the tax consequences. Many people do this to obtain the Prima Casa Bonus or a permesso di soggiorno, without realising that it immediately triggers Italian tax residency — including for the entire year if registration takes place on 1 January.
• Keeping a "safety" tax address in France. Maintaining a permanent home in France while living primarily in Italy creates a genuine dual-residency situation. The treaty tie-breaker cascade will apply, but the process becomes more complex.
• Forgetting the Quadro RW. A recent client had failed to declare a French life insurance policy worth €180,000. Regularisation is possible, but it triggers late-payment interest and may prompt a detailed tax audit.
• Not obtaining the Italian tax residency certificate. This document — issued free of charge by the Agenzia delle Entrate — is essential to demonstrate your non-residency status in France and avoid excessive withholding tax on your French-source income.

A typical scenario I often encounter: a retired couple buys a house in Tuscany, registers with the anagrafe in June to benefit from the Prima Casa Bonus, and continues to receive their pension without changing anything on the tax side. A year later, the Agenzia delle Entrate sends a notice regarding undeclared worldwide income. The situation can be fully regularised, but it underlines the importance of planning ahead from the outset.

Case study: dual France-Italy residency resolved by the treaty

Here is a concrete example. Marie, a 45-year-old professional, buys a flat in Milan and moves there in March 2024. She keeps an apartment in Paris that she owns. She works remotely from Milan for a French company, and her children start school in Italy in September 2024.

• Italian criteria: registered with the Milan anagrafe in March, effective residence > 183 days → tax resident in Italy.
• French criteria: owner of a Paris apartment, professional activity in the service of a French employer → potentially also a tax resident in France.
• Treaty cascade: Step 1 — permanent home in both States → inconclusive. Step 2 — centre of vital interests: children in school in Italy, daily life in Milan → Italy designated as the State of residence.
• Outcome: Marie declares her worldwide income in Italy, her French salary benefits from a treaty tax credit, and she declares her Paris apartment in the Quadro RW with the corresponding IVIE (0.76% of the cadastral value).

Frequently asked questions

Can I remain a French tax resident while living in Italy?

Yes, this is theoretically possible if you continue to meet the French tax residency criteria — in particular if your permanent home remains in France, your main professional activity is carried out there, or you spend more than 183 days per year there. However, if you are simultaneously registered with the Italian anagrafe or spend more than 183 days in Italy, you also meet the Italian tax residency criteria. The 1989 treaty then applies to designate a single State of residence through the tie-breaker cascade: permanent home → centre of vital interests → habitual abode → nationality. In the great majority of cases, day-to-day life in Italy with family and local employment leads to Italian tax residency under the treaty.

Is registration with the anagrafe compulsory for foreigners living in Italy?

Yes, if you live in Italy on a habitual and continuous basis, registration with the anagrafe of your municipality is a legal obligation, generally within 20 days of moving in. It is not optional. However, it is important to understand its tax consequences: from the moment of registration, you are presumed to be an Italian tax resident for the entire current tax year. Registration is also essential to benefit from the Prima Casa Bonus (reduced registration tax when purchasing a primary residence) and to access a wide range of Italian public services.

What is the Italian tax residency certificate and how do you obtain it?

The tax residency certificate (certificato di residenza fiscale) is an official document issued by the Agenzia delle Entrate (Italy's equivalent of a national tax authority) certifying that you are a tax resident in Italy within the meaning of the 1989 France-Italy tax treaty. It is free of charge and can be requested online through the Agenzia delle Entrate website or at any local office. This document is essential to present to the relevant authorities in France (banks, tax authority, social security bodies) to confirm your change of tax residency and avoid excessive withholding tax on your French-source income.

Do I have to declare my French bank accounts to the Italian tax authority?

Yes, absolutely. As an Italian tax resident, you are required to declare all financial assets held abroad in the Quadro RW of your Italian income tax return. This includes current accounts, savings accounts, life insurance policies, share savings plans, securities accounts, and other financial investments held in France. These assets are subject to IVAFE (0.2% per year on the value as at 31 December). Since the OECD Common Reporting Standard (CRS) came into force, information on your French accounts is automatically transmitted to the Agenzia delle Entrate: any omission is therefore easily detectable and exposes you to significant penalties.

How does the tax credit work to avoid double taxation?

The mechanism works as follows: certain income (rental income, dividends, interest, depending on the treaty provisions) may be taxed in the State where it arises — for example, your French rental income is taxed in France. As an Italian tax resident, you must also declare this income in Italy (under the worldwide income principle). To eliminate double taxation, Italy grants you a tax credit equal to the tax paid in France on that income, up to the amount of the corresponding Italian tax. In practice, you never pay tax twice on the same income: you pay in the source State, and the State of residence deducts that amount from your local tax liability.

What happens if I do not officially transfer my tax residency to Italy?

If you are effectively living in Italy without officially transferring your tax residency, you risk being reassessed by the Agenzia delle Entrate for failure to declare your worldwide income. The Italian tax authority can look back up to 7 years (or further in cases of fraud) and apply penalties ranging from 90% to 180% of the tax evaded, plus late-payment interest. Moreover, by remaining officially a French tax resident while living in Italy, you could also face reassessment in France for having wrongly benefited from exemptions reserved for non-residents. The best approach is always to plan ahead and regularise your situation from the outset, with the help of a specialist tax adviser.

Are Italy's favourable tax regimes compatible with the France-Italy treaty?

Yes, the new-resident Flat Tax (a flat €100,000 lump sum on foreign income, for up to 15 years), the 7% retiree regime (available in certain municipalities in southern Italy for 10 years), and the impatriates regime (a 50% exemption on Italian income) are all compatible with the 1989 France-Italy treaty. These are Italian domestic law provisions that apply once you are qualified as an Italian tax resident under the treaty. They do not affect your treaty residency status, but they may change how your foreign income is taxed in Italy. A case-by-case analysis with a tax specialist is recommended to optimise your situation.