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 the essential first step 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 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 rules, and what you actually need to declare.

Are you a tax resident in Italy? The 4-criterion test

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

The 3 criteria for Italian tax residence

Italian tax law defines the tax residence of an individual through three alternative criteria, set out in Article 2 of the TUIR (Testo Unico delle Imposte sui Redditi). It is sufficient for just one to be met during the majority 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 is therefore an act with major tax implications: it automatically triggers Italian tax residence for the entire current year. In my experience, many buyers register with the anagrafe to benefit from the Bonus Prima Casa without realising that they thereby become full Italian tax residents.

2. Domicile in the civil law sense

The domicilio corresponds, under the Italian civil code, to the place where a person has established the main centre 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 manages their business from Milan, even spending fewer than 183 days in Italy, may be classified as an Italian tax resident.

3. Habitual residence (residenza)

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

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

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 provides 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 residence situations are resolved at the first or second step. A couple who sell their Paris apartment to settle in Florence, with children enrolled in Italian schools and a local job, will unambiguously be considered Italian tax residents under the treaty.

Eliminating double taxation: the tax credit mechanism

The 1989 treaty does not mean you are never taxed in both countries. Certain income — such as rental income or certain dividends — may be taxed in the source state. To avoid double taxation between Italy and France, 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 practice, if you are a tax resident in Italy and receive rental income from a property in France, you will pay tax in France, then deduct that tax from your Italian liability on the same income.

What you need to declare, and where

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

Declaring worldwide income in Italy

As a tax resident in Italy, you must declare all your income, regardless of its geographical source, in your Italian tax return (Modello 730 or Modello Redditi PF). This includes income from abroad: 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: your foreign assets to declare

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

Foreign bank accounts: full transparency required

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

And in France? The non-resident filing

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, then non-resident returns (form 2042) covering only your French-source income. The Italian tax residence certificate — issued by the Agenzia delle Entrate — will often be requested by the French authorities to confirm your change of tax residence.

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

Favourable tax regimes for residents in Italy

For a comprehensive overview of all tax obligations and benefits related 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 relocate to Italy, I regularly encounter the same recurring situations. Here are a few of the most common:

• Registering with the anagrafe without anticipating the tax consequences. Many people do this to obtain the Bonus Prima Casa or a permesso di soggiorno, without realising that it immediately triggers Italian tax residence — 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 situation of effective dual residence. The treaty tie-breaker rules will apply, but the process becomes considerably 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 incurs late interest and may trigger an in-depth tax audit.
• Not obtaining the Italian tax residence certificate. This document — issued free of charge by the Agenzia delle Entrate — is essential to demonstrate your non-resident status in France and avoid excessive withholding tax on your French-source income.

A typical scenario I come across regularly: a retired couple buys a house in Tuscany, registers with the anagrafe in June to benefit from the Bonus Prima Casa, and continues to receive their pension from abroad without making any changes on the tax side. A year later, the Agenzia delle Entrate sends a reminder notice for undeclared worldwide income. The situation is entirely resolvable, but it underscores the importance of planning ahead from the outset.

Case study: dual France-Italy residence resolved through the treaty

Let us take a concrete example. Marie, a 45-year-old professional, buys an apartment in Milan and moves there in March 2024. She retains an apartment in Paris, which she owns. She works remotely from Milan for a company based in France, 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 an apartment in Paris, working for a French employer → potentially also a tax resident in France.
• Treaty tie-breaker: Step 1 — permanent home in both states → inconclusive. Step 2 — centre of vital interests: children in Italian schools, daily life in Milan → Italy designated as the state of residence.
• Outcome: Marie declares her worldwide income in Italy, her salary from France 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 meet the criteria for French tax residence — in particular if your permanent home remains in France, your principal 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 criteria for Italian tax residence. 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 vast majority of cases, daily life in Italy with family and local employment leads to Italian tax residence 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 your arrival. It is not optional. However, it is important to understand the tax implications: from the moment of registration, you are presumed to be an Italian tax resident for the entire current tax year. This step is also essential to benefit from the Bonus Prima Casa (reduced registration fees when purchasing a primary residence) and to access many Italian public services.

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

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

Do I need to declare my foreign bank accounts to the Italian tax authority?

Yes, absolutely. As a tax resident in Italy, you are required to declare all financial assets held abroad in the Quadro RW section of your Italian tax return. This includes current accounts, savings accounts, life insurance policies, share savings plans, securities accounts, and other foreign financial investments. 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 foreign accounts is automatically transmitted to the Agenzia delle Entrate: omissions are therefore easily detectable and expose 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 originates — for example, rental income from a French property is taxed in France. As a tax resident in Italy, you must also declare this income in Italy (under the worldwide income principle). To avoid 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 residence to Italy?

If you are effectively living in Italy without officially transferring your tax residence, 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 longer in cases of fraud) and apply penalties ranging from 90% to 180% of the tax evaded, plus late interest. In addition, by remaining officially a French tax resident while actually 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 neo-resident Flat Tax (€100,000 lump-sum on foreign income, for up to 15 years), the 7% retiree regime (applicable in certain municipalities in Southern Italy for 10 years), and the impatriate regime (50% reduction on Italian-source income) are all compatible with the France-Italy treaty of 1989. These are domestic Italian measures that apply once you are qualified as a tax resident in Italy under the treaty. They do not affect your treaty residence 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.