Why Americans in Italy Shouldn’t Own an S-Corp or Disregarded LLC

The short answer: because Italy doesn’t see these entities the way the IRS does. The structural mismatch between U.S. pass-through taxation and Italian treatment of foreign entities creates a double taxation problem that the U.S.–Italy tax treaty does not fix. Knowing this before you move — or before you file your first Italian return — can save you from a situation that is genuinely difficult to unwind.

What Makes S-Corps and Disregarded LLCs Special in the U.S.

Both entities share a defining feature: they are fiscally transparent, or “pass-through,” for U.S. tax purposes. The entity itself pays no federal income tax. Instead, its income is attributed to the owner and reported on the owner’s personal tax return.

For a single-member LLC (disregarded entity), the IRS treats the entity as if it doesn’t exist for tax purposes. All income and expenses flow directly onto the owner’s Schedule C or Schedule E.

For an S-Corporation, the business files a Form 1120-S and distributes a Schedule K-1 to each shareholder showing their proportional share of the entity’s income for the year. That K-1 income is included in the shareholder’s personal Form 1040 and taxed at ordinary income rates, regardless of whether any cash was actually distributed.

This last point is critical, and it is precisely where the Italian problem begins.

How Italy Sees the Same Entities

Italy does not recognize the pass-through concept for foreign entities. The Agenzia delle Entrate confirmed this in Circolare 9/E del 2015, which governs Italian taxation of foreign transparent entities. Under that guidance, S-Corps, LLCs, and LLPs organized in the U.S. are treated as opaque entities for Italian tax purposes, similar to a corporation.

What that means in practice: Italy does not care what income the entity produced during the year. Italy taxes what the entity distributed to the owner. Distributions are treated as dividends from a foreign corporation and subjected to the 26% imposta sostitutiva (substitutive flat tax on investment income).

The asymmetry is fundamental:

• The U.S. taxes produced income (via Schedule K-1)
• Italy taxes distributed income (cash basis, when and if distributions are made)

These are two different taxable events, measured in two different ways, in two different years. They do not offset each other.

The Double Taxation Trap

To see how this plays out, consider a simple example.

An American living in Italy owns 100% of a single-member LLC. The LLC earns $100,000 in Year 1 but distributes only $40,000 to the owner. The remaining $60,000 stays in the business.

For U.S. purposes: the owner reports $100,000 on their Schedule C and pays U.S. federal income tax on that full amount, typically at rates of 22% to 37% depending on total income, plus self-employment tax.

For Italian purposes: the owner reports only the $40,000 distribution as dividend income, paying 26% imposta sostitutiva on that amount.

On the surface this looks like partial overlap. But now consider Year 2, when the LLC earns $20,000 and distributes $80,000 (drawing down retained earnings from Year 1).

For U.S. purposes: the owner reports $20,000.
For Italian purposes: the owner reports $80,000.

The owner is paying Italian tax on $80,000 of distributions using earnings already taxed in the U.S. in the prior year. The tax bases don’t line up. And because the amounts are mismatched across years and across concepts (competence vs. cassa), there is no clean mechanism to claim a credit in either country.

In the worst-case scenario — a year when the LLC makes no distributions but earns $100,000 — the owner pays U.S. income tax on $100,000 and nothing in Italy that year. Then, if the LLC distributes those accumulated earnings in a later year when it operates at a loss, the owner pays Italian tax on the distributions with no corresponding U.S. income to generate a credit.

Why the Treaty Doesn’t Save You

The natural assumption is that the U.S.–Italy tax treaty, specifically Article 23, should prevent double taxation through the Foreign Tax Credit mechanism. In most cross-border situations, it does. But this situation is an exception.

The problem is that the Foreign Tax Credit requires the same item of income to be taxed in both countries. When Italy taxes a $40,000 distribution and the U.S. taxes a $100,000 K-1, these are not the same item of income. The re-sourcing rule under Article 23 cannot harmonize amounts that don’t match.

This is not a planning gap or a technicality that good preparation can eliminate. It is a structural incompatibility built into the way each country defines what is taxable and when. Italian tax practitioners, including Enrico Povolo of fatcacittadiniamericani.com, have written specifically about this limitation, noting that the Foreign Tax Credit for Italian taxes is generally not available on the U.S. return in these circumstances, and vice versa.

The result is genuine double taxation with no offsetting relief.

The S-Corp Problem Compounds for a Different Reason

If you own an S-Corporation (rather than a disregarded LLC), a separate issue applies on top of the double taxation problem.

Under U.S. tax law, S-Corp shareholders must be U.S. citizens or U.S. resident aliens. An American who establishes Italian tax residency retains their U.S. citizenship and remains eligible to hold S-Corp shares. So far, no immediate legal problem.

But consider what happens if that person later renounces U.S. citizenship, or if there is any period during which their U.S. tax residency status is unclear. The moment an S-Corp shareholder is reclassified as a non-resident alien, the S-Corp election is automatically terminated. The corporation reverts to C-Corp status, often retroactively, creating significant tax and compliance exposure for every shareholder in the entity.

For Americans who are considering renunciation as part of their long-term Italy strategy, holding an S-Corp is a time bomb. The election fails at the worst possible moment, during an already complex exit tax calculation.

The Esterovestizione Risk

There is a third risk that applies to both S-Corps and disregarded LLCs when the owner is living in Italy and actively managing the business.

Italian tax law contains a concept called esterovestizione: the reclassification of a foreign entity as a de facto Italian company. The legal basis is the “place of effective management” test. If the key business decisions for a foreign company are being made by someone sitting in Italy, the Agenzia delle Entrate can argue that the company’s true fiscal seat is Italy, not the United States.

If that argument succeeds, the company owes Italian corporate income taxes (IRES, currently 24%) on its globally recalculated income, under Italian accounting rules. This is separate from and in addition to U.S. taxes already paid.

The defense against esterovestizione is to ensure that the majority of the company’s managers are U.S. tax residents who are genuinely involved in managing the business from the U.S. For a single American living in Italy who runs their own LLC, with no U.S.-based manager, that defense is unavailable.

This risk is not theoretical. The Agenzia delle Entrate has the tools and the motivation to pursue esterovestizione cases, particularly as cross-border data sharing through FATCA makes U.S. entity structures increasingly visible to Italian authorities.

What to Use Instead

There is no single correct answer for every situation, and the right structure depends on whether the business activity will be primarily U.S.-based or Italian-based, the nature of the income, the applicable Italian tax regime, and the owner’s long-term plans. That said, the most commonly used alternatives are the following.

For primarily U.S.-based business activity: A properly structured Wyoming LLC can work for Italian residents if, and only if, the operating agreement is designed to comply with Italian corporate norms and a non-Italian-resident manager with genuine authority and reasonable W-2 compensation is appointed. This defends against both CFC reclassification under Italian law and esterovestizione claims. A Florida LLC creates additional complications because Florida imposes a state corporate tax on LLCs, which adds a layer of U.S. tax on top of everything else.

For primarily Italian-based business activity: An Italian SRL (Società a Responsabilità Limitata) is typically the most efficient structure. IRES is charged at 24%, distributions to the owner are taxed at 26%, and the framework is well understood by Italian authorities. For self-employed individuals with turnover under €85,000, the Forfettario flat-rate regime may also be worth evaluating.

For holding a passive interest in a U.S. pass-through: Some practitioners recommend holding the interest through a U.S. C-Corporation. The C-Corp is an opaque entity from both the U.S. and Italian perspectives. Dividends paid by the C-Corp to an Italian-resident individual are taxed at 26% in Italy, and the C-Corp pays its own U.S. corporate tax at 21%. This creates two layers of tax, but the layers are symmetric and predictable, and the Foreign Tax Credit mechanism can function properly at the individual level.

A U.S. Trust structure is another alternative discussed in Italian tax circles, though these carry their own complexity under both U.S. and Italian law.

The Bottom Line

Owning an S-Corp or a disregarded LLC while living in Italy is not illegal. But the structural mismatch between U.S. pass-through taxation and Italian treatment of foreign entities creates double taxation that the treaty cannot remedy, combined with a real risk of entity reclassification by Italian authorities. The situation compounds with S-Corps specifically, given the residency restrictions on shareholders.

Americans who have already established Italian residency and still hold these structures should review their situation with a cross-border specialist before the next filing season. The longer the structure remains in place, the harder it is to unwind cleanly.