Esterovestizione: Why Your American Company Can Be Taxed in Italy

How Italy Decides a Company Is Its Own

Italian law looks at where a company actually operates, not where it was formed. Under Article 73 of the income tax code, a company is Italian resident if, for most of the tax year, it has in Italy any one of three things: its registered office, its place of effective management, or its principal ordinary management.¹ The tests are alternatives, so one is enough.²

The registered office rarely causes trouble. The other two do. Place of effective management is the continuous, coordinated making of the company’s strategic decisions, judged by where those top decisions are actually taken, language chosen to track the place-of-effective-management concept used in nearly every Italian tax treaty, including the one with the United States.³ Principal ordinary management reaches further down, to the day-to-day running of the business. These definitions arrived with the 2023 international tax reform and apply from 2024,⁴ replacing the older seat-of-administration and main-object tests and giving the agenzia delle entrate cleaner language to argue that the real decisions happen in Italy.⁵ The residency question has more grey areas than most people expect, which we cover separately in the grey areas of residency.

Where This Hits Americans

The common case is simple. An American becomes resident in Italy and keeps a U.S. LLC, S-Corp, or C-Corp while every strategic decision runs through one person sitting in Italy. On those facts the place of effective management is Italy, and the company is exposed to reclassification. This is the same structural mismatch behind why Americans in Italy should not own an S-Corp or disregarded LLC.

There is also a narrower statutory presumption: a foreign company that holds a controlling stake in an Italian company and is itself controlled by, or mostly run by, Italian residents is presumed Italian resident unless it proves otherwise.⁶ That one requires control of an Italian company,⁷ but the general Article 73 test needs no such trigger and is what reaches the typical expat owner.

What Happens if the Company Is Caught

When the agenzia delle entrate treats the company as resident, it works backward. For each year under review the company is taxed as if it should have filed an Italian corporate return on its worldwide income recalculated under Italian rules: IRES at twenty-four percent, plus IRAP at roughly four percent. Because no Italian return was ever filed, the matter is an omitted declaration rather than a merely inaccurate one, and that is what makes it expensive. The penalty runs on the unpaid tax, historically 120 to 240 percent and reset to a flat 120 percent for violations from September 2024, with interest on top.⁸ The omission also extends Italy’s reach, since an omitted return can be assessed through the seventh year after it was due, against the fifth for a return that was filed.⁹ There is a criminal line as well, crossed once evaded tax passes fifty thousand euro for a single tax in a single year, which a multi-year reclassification reaches easily.¹⁰

The Real Cost Is the Filing Burden, Not the Rate

Here is the part people misread. Italy’s corporate rate is not dramatically higher than the American one, twenty-four percent IRES against the U.S. federal twenty-one,¹¹ so the reason to avoid esterovestizione is rarely the headline tax. It is what residence drags in behind it. A company deemed Italian resident, or one whose owner simply elects to accept Italian treatment, takes on the full domestic compliance load: the corporate income tax return on Modello REDDITI SC and a separate IRAP return, books and records kept under Italian accounting rules, annual financial statements prepared and, in the ordinary case, deposited with the Registro delle Imprese, and reporting through the ISA reliability indicators where they apply.¹² Add a VAT position if it has Italian-relevant turnover and withholding-agent duties if it pays anyone. None of this existed for the company the day before, and it recurs every year. For many owners the lighter answer is to drop the U.S. corporation and work through an Italian partita IVA or SRL, an option we weigh case by case and explain in the taxation of opening an SRL in Italy.

The Narrower Trap: a Permanent Establishment

Even a company that genuinely keeps its management abroad can still owe Italian tax through a second door. Italy may tax a foreign company on the income attributable to a permanent establishment, a stabile organizzazione, it maintains in Italy. The reach differs: esterovestizione pulls the whole company in and taxes worldwide income, while a permanent establishment leaves it foreign but taxes only the Italian slice of its profit. You can beat the first and still meet the second.

A permanent establishment is a fixed place of business through which a non-resident enterprise carries on part of its activity in Italy, expressly including a place of management, a branch, or an office.¹³ For an American working from home, the question is whether that home becomes one. It does not automatically, but recent OECD-aligned guidance treats it as a permanent establishment where the company effectively requires the work from Italy and the space is used continuously rather than occasionally.¹⁴ A second route needs no office at all: if someone in Italy habitually concludes contracts in the company’s name, or drives them to conclusion, that alone creates a permanent establishment for the activity.¹⁵ Genuinely preparatory or auxiliary work such as storage is excluded,¹⁶ but selling and contracting are not.

Building a Position You Can Defend

This is manageable, and best managed before anyone asks. The agenzia looks at how a company is actually run, not at titles, so the defense is real substance. Keep effective management demonstrably outside Italy: a majority of directors or managers genuinely resident abroad and genuinely exercising authority, not figureheads. A non-resident director needs real signing power and reasonable W-2 pay, since one paid nothing is treated as a sham. Strategic decisions should be taken in meetings held outside Italy and documented in minutes that show what was decided and where.

Permanent establishment risk calls for a parallel discipline: no fixed premises held out as the company’s own, and no one on Italian soil routinely closing deals in its name. Where Italian activity stays genuinely preparatory the exposure is limited, but the moment real selling runs through Italy, expect Italy to want its share.

A solo American running an LLC alone from Italy has essentially no defense, and that is better heard now than during an audit. Where a corporation must stay in place, workable structures exist, such as an LLC with a C-Corp election paired with an Italy-compliant operating agreement and a credible non-resident manager. The right answer depends on the facts, and it is worth settling before you move rather than after.

Notes & Sources

1. Art. 73, comma 3, TUIR (DPR 22 December 1986, n. 917), as amended by DLgs. 27 December 2023, n. 209. A company is resident if for the greater part of the tax period it has in Italy its sede legale, its sede di direzione effettiva, or its gestione ordinaria in via principale. ↩
2. Relazione illustrativa to DLgs. 209/2023, confirming the three criteria are alternative, so any one is sufficient to establish Italian residency. ↩
3. Eutekne, Scheda di Aggiornamento “Novità del DLgs. 209/2023 di riforma della fiscalità internazionale,” noting that sede di direzione effettiva maps directly to the treaty concept of place of effective management used to break dual-residence ties. ↩
4. Art. 7, comma 2, DLgs. 209/2023. The new Article 73 applies from the tax period following the one in progress at 29 December 2023, that is, from 2024 for entities on a calendar-year basis. ↩
5. Agenzia delle Entrate, Circolare n. 20/2024, operational instructions to offices on the tax residence of companies and entities following DLgs. 209/2023. ↩
6. Art. 73, comma 5-bis, TUIR. A foreign entity holding a controlling participation (art. 2359, comma 1, c.c.) in an Italian-resident company is presumed Italian resident where it is in turn controlled by Italian residents or administered by a board composed mostly of Italian residents, absent proof to the contrary. ↩
7. Agenzia delle Entrate, Risposta a interpello n. 27/2022, confirming that the comma 5-bis presumption applies only where the foreign company directly holds a controlling stake in an Italian-resident company. ↩
8. Art. 1, DLgs. 18 December 1997, n. 471, on the omitted income-tax return. The penalty, historically from 120 to 240 percent of the tax due (minimum 250 euro), was reset to a flat 120 percent for violations committed from 1 September 2024 by DLgs. 14 June 2024, n. 87. See also Agenzia delle Entrate, Risposta a interpello n. 150/2020. ↩
9. Art. 43, DPR 29 September 1973, n. 600. A notice of assessment must be served by 31 December of the fifth year following the year in which the return was filed, or the seventh year following the year in which it should have been filed where the return was omitted. ↩
10. Art. 5, DLgs. 10 March 2000, n. 74, which makes the omitted filing of an income-tax or VAT return a criminal offense where the evaded tax exceeds 50,000 euro per tax and per tax period. ↩
11. IRES is set at 24 percent by art. 77 TUIR, against a U.S. federal corporate rate of 21 percent under IRC section 11(b). Regional and state taxes apply on top in each system, including Italian IRAP at a standard 3.9 percent. ↩
12. A resident company files Modello REDDITI SC for IRES and a separate IRAP return (DLgs. 15 December 1997, n. 446), maintains the statutory accounting books required by artt. 14 and following of DPR 29 September 1973, n. 600, and prepares annual financial statements deposited with the Registro delle Imprese under art. 2435 of the Civil Code. The ISA reliability indicators apply under art. 9-bis of DL 50/2017. ↩
13. Art. 162, commi 1 and 2, TUIR (DPR 22 December 1986, n. 917). A permanent establishment is a fixed place of business through which a non-resident enterprise carries on all or part of its activity in Italy, and the list expressly includes a place of management, a branch, an office, and a workshop. ↩
14. Eutekne, Scheda di Aggiornamento “Home office - Nuovi criteri OCSE per individuare la stabile organizzazione” (February 2026), applying the OECD criteria for when a home office constitutes a permanent establishment of a foreign enterprise. ↩
15. Art. 162, comma 6, TUIR, the agency permanent establishment. A person who habitually concludes contracts, or plays the principal role leading to their conclusion, in the enterprise’s name causes the enterprise to be treated as having a permanent establishment in Italy. Comma 7 preserves an exception for a genuinely independent agent acting in the ordinary course of its own business. ↩
16. Art. 162, commi 4 and 4-bis, TUIR, excluding from permanent-establishment status activity of a purely preparatory or auxiliary character, such as storage, display, or the collection of information. ↩

This article is general information, not tax or legal advice. Whether a particular company is exposed to esterovestizione or a permanent establishment depends on its facts, its management, and how it is actually run. Contact JSBC before acting.