Italy-US treaty: status and key articles
The Italy-US tax convention has been in force since 1985 with the 1999 Protocol significantly modernizing it. Coverage includes income tax, dividends, royalties, capital gains, pensions, and residency tie-breakers.
- Article 7 (Business Profits): Italian-resident operating profits are taxable only in Italy without US PE.
- Article 10 (Dividends): 5% for 25%+ ownership. 15% standard.
- Article 11 (Interest): 0-10% on portfolio interest.
- Article 12 (Royalties): 0% copyright, 8% industrial royalties, 5% know-how.
- Article 23 (Relief from Double Taxation): Italian FTC mechanism.
Withholding rates by income type for Italian residents
| Income type | Default US rate | Italy treaty rate |
|---|---|---|
| US-source dividends (25%+ ownership) | 30% | 5% |
| US-source dividends (standard) | 30% | 15% |
| US-source portfolio interest | 30% | 0-10% |
| US-source royalties (copyright) | 30% | 0% |
| US-source royalties (industrial) | 30% | 8% |
| US-source royalties (know-how) | 30% | 5% |
| Business profits without US PE | Generally not taxed | Generally not taxed |
How Agenzia delle Entrate treats US LLCs
Italian tax authorities may treat US LLCs as transparent (società di persone equivalent) or opaque (società di capitali equivalent) depending on the LLC's operating-agreement structure and member rights. Transparent treatment passes income through IRPEF. Opaque treatment taxes the LLC at IRES with distributions taxed separately.
Practical approach: most Italian founders we serve work with a commercialista to align the LLC structure with transparent treatment. Quadro RW reporting on the Italian tax return is mandatory for foreign asset holdings.
How to file W-8BEN-E from Italy
- Line 1: LLC legal name
- Line 4: Chapter 3 status: Disregarded Entity
- Line 5: Country of residence: Italy
- Line 6: Permanent residence address in Italy
- Line 8: US TIN (EIN)
- Line 9: Foreign TIN (your Italian Codice fiscale)
- Part III: claim treaty benefits citing the applicable article
Common mistakes by Italian founders
- Not filing Quadro RW (foreign asset reporting) on Modello Unico (penalties from 3% to 15% of undeclared assets)
- Not filing W-8BEN-E with US payers (30% default applies)
- Missing Form 5472 + 1120 ($25K penalty)
- Triggering Italian CFC rules (Art. 167 TUIR) on passive holding structures
- Confusing IRPEF (transparent) and IRES (opaque) treatment of LLC income