US Taxes for Americans in Italy: FBAR & Treaty Explained

The basic structure: two overlapping systems

When an American lives in Italy with legal residency, they are typically tax residents of both countries — the US by citizenship, Italy by physical presence (183+ days per year). This means both countries have a claim on your income. The US-Italy tax treaty exists to prevent the same income from being fully taxed twice, but it does not eliminate your obligation to file in both jurisdictions or to understand how they interact.

The practical result is that Americans living in Italy typically need to file:

• A US federal income tax return (Form 1040)
• FBAR filing if applicable (FinCEN 114)
• Form 8938 (FATCA statement) if applicable
• An Italian income tax return (Modello 730 or Redditi PF)

The interaction between these filings requires professional guidance. This dispatch explains the structure. It is not tax advice, and you should not use it as a substitute for working with a tax professional qualified in both US and Italian tax law.

FBAR: what it is and when it applies

FBAR stands for Report of Foreign Bank and Financial Accounts. It is filed with FinCEN (Financial Crimes Enforcement Network), not with the IRS, and it is separate from your tax return. The filing requirement is FinCEN Form 114.

You must file FBAR if you are a US person who had a financial interest in, or signature authority over, one or more foreign financial accounts with an aggregate value exceeding $10,000 at any point during the calendar year.

Key points about FBAR that most summaries understate:

• The $10,000 threshold is aggregate, not per-account. If you have three Italian accounts with €3,500 each, the aggregate value ($10,500 at current rates) triggers the requirement.
• The threshold is any day during the year, not year-end. If your Italian account briefly exceeded $10,000 in July but was lower at year-end, you still must file.
• It applies to accounts you control, not just own. Signature authority over a business account you do not personally own can trigger FBAR.
• The penalties for willful non-compliance are severe. The civil penalty for willful failure to file can be the greater of $100,000 or 50% of the account balance per violation. Non-willful penalties are up to $10,000 per violation.

FBAR is due April 15, with an automatic extension to October 15. It is filed online through the BSA E-Filing System, separately from your tax return.

FATCA and Form 8938

FATCA (Foreign Account Tax Compliance Act) introduced Form 8938, filed with your tax return. The thresholds are higher than FBAR and vary by filing status and whether you live in the US or abroad:

FBAR and FATCA overlap — the same accounts may need to be reported on both forms. Filing one does not satisfy the obligation to file the other.

The US-Italy tax treaty

The US and Italy have had a tax treaty in force since 1984, with updates since. The treaty's primary mechanism for reducing double taxation is the foreign tax credit: taxes paid to Italy can generally be credited against your US tax liability on the same income.

The treaty also establishes which country has primary taxing rights on specific income types:

• Employment income: Generally taxable in the country where the work is performed.
• Dividends: The source country (where the company paying the dividend is based) can withhold tax; the residence country can also tax, with credit for the withholding.
• Pension income: Generally taxable only in the country of residence — meaning Social Security received by an American resident in Italy is generally taxable in Italy, not the US.
• Capital gains: Generally taxable in the country of residence, with exceptions for real property.

The treaty also includes a "savings clause" that preserves the US's right to tax its citizens as if the treaty did not exist — which limits the treaty's benefits for Americans in ways that do not apply to citizens of other countries. This is one of several ways in which the US-Italy treaty interaction is more complex for American citizens than for Italian citizens or third-country nationals.

AIRE registration and Italian tax residency

When you establish legal residency in Italy, you should register with AIRE (this registration is part of the correct sequencing of the residency process) — the Anagrafe degli Italiani Residenti all'Estero, the registry of Italians residing abroad. For Americans, the equivalent is registering with the Italian local registry (Anagrafe) in the comune where you live.

Italian tax residency is triggered by spending more than 183 days per year in Italy, or by registering in the Italian civil registry. Once you are an Italian tax resident, you are subject to Italian income tax on worldwide income — which then interacts with your US obligations through the treaty framework.

Italy offers a flat tax regime for new residents: a fixed annual payment of €100,000 covers Italian tax on all foreign-source income. This is attractive for high-net-worth individuals with significant foreign income, but it is not available to everyone and has specific qualification requirements. Whether it is advantageous depends entirely on your income structure.

What actually changes when you move to Italy

Your US tax filing obligations do not change. What changes is:

• You add Italian tax filing obligations
• You add FBAR obligations if your Italian accounts exceed $10,000 aggregate
• The treaty framework becomes operative — you can claim foreign tax credits
• Certain income types (like Social Security) may be treated differently under the treaty
• Your reporting obligations become more complex, and the stakes of errors are higher