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Topic · Italy

Streamlined filing from Italy: catching up on US taxes

For Americans in Italy who never knew they had to file — the penalty-free route back, and the two things that make an Italian case slower than it looks.

By Danilson Ramos · Founder, Atamatax

Updated August 2026

Tax review partner: onboarding in progress. This article has not yet been independently reviewed by a credentialed professional — every figure cites its IRS source so you can verify it directly.

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Italy attracts Americans who did not plan to become long-term residents: a partner, a job in Milan, a research post, a slow move to Puglia that turned permanent. The U.S. filing obligation follows citizenship, not intention, and it is usually discovered years in — from a bank's FATCA request, a commercialista's question, or a passport renewal.

The programme

The Streamlined Foreign Offshore Procedures allow a qualifying U.S. person abroad to file the most recent 3 years of delinquent or amended returns and the most recent 6 years of FBARs, with the offshore penalty at 0%. Both gates must hold: your failure to file must have been non-willful, and you must satisfy the non-residency test — at least 330 days abroad in at least one of the last three years.

You certify non-willfulness yourself on Form 14653, under penalty of perjury. Software does not decide it and neither does a commercialista — where there is genuine doubt, that is a question for a U.S. tax attorney.

How much U.S. tax an Italian case usually produces

IRPEF plus regional and municipal addizionali on employment income generally exceeds the U.S. tax on the same income, and the Foreign Tax Credit on Form 1116 credits qualifying Italian income tax against it category by category. For a salaried American in Italy, U.S. tax on employment income across the catch-up years is frequently zero or close to it.

Two things change that picture. Investment income taxed at Italy's flat 26% may credit poorly against U.S. tax on the same income in the same category and year, particularly where §1291 shifts PFIC income into earlier years. And Italy's inbound-worker reliefs — the impatriate regime and the flat-tax option for new residents — reduce Italian taxable income, which reduces the Italian tax available to credit. A relief that saves money in Italy can raise the residual U.S. bill on the same income.

What makes the Italian case slow

  • Fund holdings. A deposito titoli with several fondi comuni or ETF armonizzati means one Form 8621 per fund per year across the window.
  • Six years of euro peak balances, converted at each year's December 31 Treasury rate — Italian banks do not present a maximum-balance figure by default.
  • Pension arrangements. A fondo pensione, a PIP, or an accrued TFR each needs classifying before any treaty article applies.
  • Regime changes. If you moved between regime amministrato and dichiarativo, or on and off an inbound relief, the years are not interchangeable.

What the submission contains

  1. the most recent 3 years of Forms 1040 with all required schedules and information returns
  2. the most recent 6 years of FinCEN 114 filings, submitted electronically to FinCEN
  3. Form 14653 certifying non-willfulness and non-residency, signed by you
  4. Payment of any tax and statutory interest due

Atamatax prepares the return side — the Forms 1040 year by year, the Form 1116 credit for Italian tax, Form 8621 for each PFIC, and FBAR values with filing instructions. It does not generate Form 14653, assemble the mailing, or transmit anything to the IRS or FinCEN.

Timing

There is no published deadline, but the programme closes once the IRS has contacted you about the years concerned. Italy exchanges account information with the United States under a FATCA intergovernmental agreement, so the reporting is already happening.

See whether the Streamlined route fits

The free eligibility tool walks the residency and non-willfulness questions and gives a cautious indication — not a determination, and not legal advice.

Authorities cited

Primary sources (Cornell Legal Information Institute for the US Code and CFR; IRS.gov for forms, procedures, and treaty documents). This page is general information, not individualized tax or legal advice.

Atamatax provides tax preparation support and educational resources. This website does not constitute legal or tax advice.

Frequently asked questions

Can I use Streamlined procedures while living in Italy?#
Residence in Italy neither qualifies nor disqualifies you. The Streamlined Foreign Offshore Procedures require non-willful conduct and the non-residency test — at least 330 days abroad in at least one of the last three years. Many long-term U.S. residents of Italy meet both, but the facts decide it.
Will I owe U.S. tax after catching up from Italy?#
On employment income, often little or nothing: IRPEF and the addizionali generally exceed U.S. tax on the same income and the Foreign Tax Credit offsets it. Investment income is where balances appear more often, especially where PFIC holdings fall under the §1291 default with its interest charge.
Does the impatriate regime affect my U.S. catch-up?#
It can, and not in your favour on the U.S. side. Reducing Italian taxable income reduces the Italian tax available as a Foreign Tax Credit, which can leave more residual U.S. tax on the same income. It is arithmetic rather than a treaty question, and worth modelling across the catch-up years.
Do my Italian funds have to be included?#
If they are PFICs, yes, for each year in the window — generally one Form 8621 per PFIC per year. In an Italian Streamlined case this is usually the largest single component of the work.
Does filing the Modello Redditi in Italy help my U.S. position?#
It gives you reliable figures, which helps in practice, but it satisfies nothing on the U.S. side. Italian and U.S. filing obligations are independent, and Quadro RW is not the FBAR.

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