Key Points
- Non-compliant foreign financial institutions face a 30% withholding tax on all US-sourced income, including dividends, interest, gross proceeds, and certain pass-through payments.
- Most EU member states operate under Model 1 IGAs, meaning FFIs report to their local tax authority rather than directly to the IRS.
- Reporting thresholds for individual accounts start at USD 50,000 for depository accounts; no threshold applies to pre-existing entity accounts.
- Auditors must assess whether the entity's FATCA classification and reporting procedures create exposure to withholding or penalties under local IGA implementing legislation.
What is FATCA?
FATCA was enacted in 2010 as part of the HIRE Act and took effect in 2014. IRC Section 1471 requires every foreign financial institution (FFI) to enter into an agreement with the IRS to identify US account holders and report specified account information annually. Non-compliant FFIs and recalcitrant account holders face a flat 30% withholding tax on every withholdable payment. The penalty is blunt: a non-compliant FFI loses 30 cents of every dollar of US-sourced income passing through its accounts.
In practice, most European FFIs do not report directly to the IRS. Nearly all EU member states (Austria is a notable exception, using Model 2) signed Model 1 IGAs with the US Treasury. Under a Model 1 IGA, the FFI reports account data to its own national tax authority (the Belastingdienst in the Netherlands, the BZSt in Germany), which exchanges the information with the IRS. The FFI must still register on the IRS FATCA portal and obtain a Global Intermediary Identification Number (GIIN).
For the auditor, FATCA creates two considerations. The entity's classification (participating FFI, deemed-compliant FFI, exempt beneficial owner, or non-financial foreign entity) determines its reporting obligations and withholding exposure. Any failure in due diligence procedures for identifying US account holders can trigger penalties under the IGA's local implementing legislation and (in a Model 2 jurisdiction) directly from the IRS.
Worked example: Groupe Lefèvre S.A.
Client: Belgian holding company, FY2025, revenue €185M, IFRS reporter. Lefèvre holds a US Treasury bond portfolio valued at €14M, receiving annual coupon income of approximately €420,000. The group's Belgian treasury entity manages cash pooling for four subsidiaries across Belgium and Germany.
Step 1 — Determine the FATCA classification
Groupe Lefèvre S.A. is a holding company with investment income, which qualifies as an FFI under IRC Section 1471(d)(5) (gross income primarily attributable to investing or trading in financial assets). The engagement team reviews the group structure with the client's tax adviser and confirms that Lefèvre is a participating FFI under the Belgium-US Model 1 IGA with a valid GIIN.
Step 2 — Evaluate the due diligence procedures
Under the IGA, Lefèvre must screen account holders and investors for US indicia (US place of birth, US address, US telephone number, standing instructions to a US account). The treasury entity manages intercompany cash pool balances for four subsidiaries. Two subsidiaries have minority shareholders; the team confirms none hold US citizenship or a US green card.
Step 3 — Assess withholding tax exposure
Lefèvre receives €420,000 in coupon income. As a participating FFI with a valid GIIN, the US withholding agent applies the 15% Belgium-US treaty rate rather than the 30% FATCA penalty rate. The team confirms no FATCA withholding was applied during FY2025. Had the GIIN lapsed, withholding would have been €126,000 (30% of €420,000) instead of €63,000.
Step 4 — Verify reporting compliance
Under the Belgium-US Model 1 IGA, Lefèvre must file its annual FATCA report with SPF Finances by 30 June following the reporting year. The team confirms the FY2024 report was filed on time and the FY2025 report is in preparation.
Conclusion: Lefèvre's FATCA position is defensible because the entity maintains a valid GIIN, applies documented due diligence procedures to identify US persons, receives US-sourced income at the treaty rate rather than the 30% penalty rate, and files IGA reports through the Belgian authority on time.
Why it matters in practice
Practitioners on European mid-market engagements frequently treat FATCA as irrelevant because the client "has no US operations." FATCA applies to any FFI receiving US-sourced payments, whether coupon income on US bonds, dividends from US equities, gross proceeds from the sale of US securities, or substitute payments under securities lending arrangements. A Belgian holding company with a €5M US bond allocation is within scope regardless of whether it has US employees or customers.
Teams often verify the entity's GIIN at engagement acceptance but do not confirm it remained active at each payment date. The IRS publishes an updated FFI list monthly. A lapse (for example, due to a missed responsible officer certification under IRC Section 1471(b)(1)(D)) triggers 30% penalty withholding on all payments received during the gap. This is the most common compliance failure for smaller European FFIs.
FATCA vs CRS (Common Reporting Standard)
| Dimension | FATCA | CRS |
|---|---|---|
| Origin | US legislation (IRC Sections 1471–1474), enacted 2010 | OECD standard, published 2014 |
| Scope | Bilateral: identifies US persons only | Multilateral: identifies tax residents of 113+ participating jurisdictions |
| Reporting channel in EU | Local tax authority (Model 1 IGA) or directly to IRS (Model 2 IGA) | Local tax authority, exchanged multilaterally under the MCAA |
| Penalty for non-compliance | 30% withholding on US-sourced payments | No direct withholding; penalties determined by local implementing law |
| Due diligence | Self-certification plus US indicia search (place of birth, address, telephone, standing instructions) | Self-certification plus residence indicia search |
| Registration | GIIN required via IRS FATCA portal | No central global registration; local registration varies by jurisdiction |
The distinction matters on every engagement with cross-border financial accounts. An entity can be fully FATCA-compliant while failing CRS (not reporting accounts held by residents of other participating jurisdictions). The two regimes share due diligence mechanics but serve different policy objectives, and penalties differ in form and severity.
Related terms
Frequently asked questions
Does FATCA apply to a European company that only holds US bonds in its investment portfolio?
Yes. Any entity whose gross income is primarily from investing or trading in financial assets meets the FATCA definition of an FFI under IRC Section 1471(d)(5). Holding US bonds generates US-sourced interest income subject to 30% withholding if the entity is non-compliant. The entity must register for a GIIN and report through its local IGA channel.
How does FATCA interact with the Common Reporting Standard?
FATCA and the CRS impose parallel but separate obligations. FATCA targets US persons and reports to the IRS. CRS targets tax residents of all participating jurisdictions and exchanges data multilaterally under the OECD framework. Most European FFIs run a single compliance process covering both regimes.
What happens if a European FFI fails to register under FATCA?
An unregistered FFI is treated as non-participating. Every US withholding agent must deduct 30% of the gross payment under IRC Section 1471(a). The entity cannot recover the excess until it registers. For a mid-market European group receiving €500,000 in annual US-sourced income, the penalty exposure is €150,000 per year.