FATCA: How the US Tax Transparency Law Impacts Your US LLC in Paraguay in 2026

If you have an account with Mercury Bank, if your US LLC is registered in Wyoming, or if you have an American broker — you've encountered an omnipresent acronym: FATCA. The Foreign Account Tax Compliance Act is the US law that revolutionized global tax transparency — long before the European CRS. Adopted in 2010, implemented in 2014, FATCA forced every bank on the planet to report the accounts of their American clients to the IRS. Refusal to cooperate? Exclusion from the US financial system — a commercial death sentence for any bank.

FATCA is often confused with CRS, often misunderstood by non-American expatriates, and often a source of unnecessary worry. This guide clarifies everything: what FATCA is, how it mechanically works, how it differs from CRS, who is truly concerned, how it impacts your US LLC and your structure in Paraguay, and why — if you are NOT a US citizen or resident — FATCA is a non-issue for you.

FATCA: The American tax weapon

Context of creation

FATCA was born out of scandal and frustration:

• The UBS scandal (2008-2009): The Swiss bank UBS admitted to helping thousands of US citizens conceal billions of dollars in undeclared Swiss accounts. UBS paid a $780 million fine and provided the names of 4,500 American clients to the IRS. The scandal revealed the extent of offshore tax evasion by Americans — estimated at over $100 billion in undeclared income per year.
• Congressional frustration: The US taxes its citizens on worldwide income, wherever they are in the world (citizenship-based taxation — unique in the world alongside Eritrea). But foreign banks were not cooperating with the IRS to identify the accounts of Americans. Result: millions of Americans living or investing abroad were not declaring their foreign accounts and income — and the IRS had no way of detecting them.
• Legislative response: Congress adopted FATCA in March 2010 (as part of the HIRE Act — Hiring Incentives to Restore Employment Act). FATCA came into effect on July 1, 2014.

The principle in one sentence

FATCA obliges all Foreign Financial Institutions (FFIs) to identify accounts held by "US persons" (US citizens and residents) and to transmit information about these accounts to the IRS. FFIs that refuse to cooperate are subject to a 30% withholding tax on all US-source payments they receive (US dividends, US interest, proceeds from the sale of US securities). This 30% withholding tax is FATCA's "nuclear sanction" — it makes non-cooperation economically suicidal for any bank that touches the US financial system in any way.

Who is a "US person" under FATCA

FATCA targets "US persons" — a broader concept than mere citizenship:

Category	US person?	Subject to FATCA?
US citizen (including dual nationality) — anywhere in the world	Yes	Yes
US permanent resident (Green Card holder) — anywhere in the world	Yes	Yes
US tax resident (Substantial Presence Test: 183 weighted days over 3 years)	Yes	Yes
American company (US LLC, C-Corp, S-Corp, Partnership)	Yes	Yes
French resident in Paraguay with a US LLC (non-US citizen, non-US resident)	No	No (but the US LLC is a US entity — see dedicated section)
French resident in Paraguay with no US ties	No	No

Crucial point: if you are NOT a US citizen, NOT a US permanent resident (Green Card), and NOT a US tax resident (Substantial Presence Test), you are NOT a "US person" under FATCA. FATCA does not target you personally. Your US LLC is an American entity subject to FATCA reporting obligations (as an FFI or NFFE depending on the case) — but YOU, as a non-American owner, are not the target of FATCA.

FATCA mechanism in detail

The two faces of FATCA

FATCA operates on two parallel axes:

Axis 1: Obligations of Foreign Financial Institutions (FFIs)

• Every bank, broker, insurer, and investment fund outside the US must register with the IRS and obtain a GIIN (Global Intermediary Identification Number). Registration is done on the IRS FATCA portal.
• Registered FFIs must identify accounts held by US persons (FATCA due diligence) and annually transmit information about these accounts to the IRS (or to their national tax administration, which retransmits them to the IRS via an intergovernmental agreement — IGA).
• Information transmitted: US person account holder's identity, account number, balance as of December 31, financial income (interest, dividends, gross proceeds from sales).
• FFIs that do not register or cooperate are subject to the 30% withholding tax on US-source payments = de facto exclusion from the global financial system.

Axis 2: Obligations of US persons

• US persons must annually file Form FBAR (FinCEN Form 114 — Report of Foreign Bank and Financial Accounts) if the aggregate value of their foreign accounts exceeds $10,000 at any point during the year. The FBAR is filed with FinCEN (Financial Crimes Enforcement Network), not the IRS.
• US persons must also file Form 8938 (Statement of Specified Foreign Financial Assets) with their income tax return (Form 1040) if the value of their foreign financial assets exceeds certain thresholds ($50,000 for US residents, $200,000 for US expatriates).
• Penalties for non-reporting are severe: FBAR = fine up to $100,000 or 50% of the account balance (per violation); Form 8938 = fine of $10,000-$50,000 (per violation) + criminal penalties for willful cases.

IGAs: How FATCA works with each country

FATCA was unilaterally imposed by the US — but its application is implemented through bilateral Intergovernmental Agreements (IGAs) signed between the US and each country. There are two IGA models:

Type	Model 1 IGA	Model 2 IGA
Information flow	FFI → local tax administration → IRS (via government-to-government exchange)	FFI → IRS directly (with local government agreement)
Reciprocity	The IRS also transmits data to partner countries (reciprocal — in theory)	No reciprocity (the US receives but does not give)
Examples	France, UK, Germany, Japan, Australia, Canada (~60 countries)	Switzerland, Austria, Hong Kong, Bermuda (~50 countries)

France has signed a Model 1 IGA with the US. French banks (Boursorama, Crédit Agricole, BNP, etc.) transmit information about US persons' accounts to the DGFiP, which then retransmits it to the IRS. In theoretical return, the IRS is supposed to transmit data on American accounts of French residents to the DGFiP.

FATCA asymmetry: The US receives but does not give (or very little)

The great hypocrisy of FATCA is its asymmetry of reciprocity:

• What the US receives: detailed data on accounts of ALL US persons worldwide (identity, balances, income). 110+ countries transmit. The IRS has an almost complete view of its taxpayers' assets abroad.
• What the US gives: very little. The US has NOT adopted the CRS (Common Reporting Standard of the OECD). The IRS transmits limited information to partner countries (via Model 1 IGAs) — primarily bank interest paid to non-residents. The US does NOT transmit account balances, dividends, proceeds from sales, or information about LLCs or trusts.
• The result: the US demands full transparency from other countries to the IRS — while offering relative opacity for accounts held by non-Americans in the US. This is what makes the US the largest "tax haven" in the world for non-Americans: a Frenchman can open an account with Mercury Bank, deposit millions there, and the DGFiP receives only scraps of information from the IRS.
• Mercury Bank and your US LLC: Mercury Bank is an American bank. It reports to the IRS (domestic FATCA — not foreign FATCA). The IRS receives data from your US LLC. But the IRS does NOT automatically retransmit this data to the French DGFiP or the Paraguayan DNIT (except within the limited framework of the IGA — and the transmitted data is minimal). This is a zone of relative opacity that favors non-Americans with accounts in the US.

Caution: this relative opacity does NOT mean that Mercury Bank is "invisible." The DGFiP can request specific information from the IRS via exchange on request (bilateral administrative assistance). And the CRS data from your OTHER accounts (Interactive Brokers Ireland, Luxembourg life insurance, Wise Belgium) is transmitted normally. Mercury Bank's opacity is a marginal advantage — not absolute protection.

FATCA vs CRS: Key differences

Comparative table

Criterion	FATCA	CRS
Origin	US law (2010), unilateral	OECD Standard (2014), multilateral
Target	"US persons" (citizens + US residents) worldwide	Non-residents of each participating country (cross-exchange)
Participants	~110 countries (via bilateral IGAs with the US)	~110 countries (via multilateral MAAC Convention)
Does the US participate?	Yes (FATCA is their tool)	No (the US has not adopted CRS)
Reciprocity	Asymmetric (the US receives a lot, gives little)	Symmetric (all countries exchange comparable data)
Data transmitted	Identity, TIN (US tax identification number), balances, financial income	Identity, TIN (of the country of residence), balances, financial income
Penalty for non-cooperation	30% withholding tax on US-source payments	No automatic penalty (but risk of EU blacklist)
Impact on a non-American resident in PY	Low (not a US person → not directly targeted by FATCA)	Moderate (foreign accounts are reported to the DNIT PY via CRS)

FATCA-CRS complementarity

FATCA and CRS are not competing — they are complementary:

• FATCA covers US persons worldwide. Its blind spot: non-Americans with accounts in the US (the US does not participate in CRS).
• CRS covers non-residents of 110+ countries. Its blind spot: accounts in the US (the US does not participate in CRS).
• The result: the US is the only major developed country that does not participate in the multilateral automatic exchange. A Frenchman with an account at Mercury Bank in the US is in a zone of lesser transparency compared to a Frenchman with an account in Switzerland (CRS) or Singapore (CRS). This asymmetry is increasingly criticized by the EU and the OECD — and could be corrected in the coming years (see "Evolution" section).

FATCA and your US LLC in Paraguay: The complete analysis

FATCA qualification of your US LLC

Your US LLC is an American entity — it is therefore subject to the domestic FATCA regime (not the foreign FATCA which targets FFIs). The US LLC is classified under the FATCA framework as follows:

• If the US LLC is a "disregarded entity" (single-member, transparent in the US): the LLC has no separate tax existence in the US. Its income is the income of the owner (you). The IRS does not treat the LLC as a distinct taxpayer — so FATCA reporting obligations on the LLC are limited.
• Form 5472: US LLCs owned by foreigners (foreign-owned disregarded entities) must file Form 5472 with the IRS. This form reports transactions between the LLC and its foreign owner (distributions, contributions, loans). This is a reporting obligation — not a tax. Form 5472 feeds the IRS's database on foreign entities in the US.
• Mercury Bank and FATCA: Mercury Bank is an American bank subject to the domestic FATCA regime. It collects FATCA information on account holders (Form W-8BEN-E for foreign entities, W-9 for US persons). Your US LLC provides a W-8BEN-E (because the owner is a non-US resident) or a W-9 (if the LLC is treated as a domestic US entity for certain payments). Mercury transmits this information to the IRS.

What the IRS knows about your US LLC

Thanks to domestic FATCA obligations, the IRS has the following information about your US LLC:

• The existence of the LLC (state registration, EIN obtained from the IRS).
• The identity of the owner (your name, address, country of residence — declared on Form W-8BEN-E or via Form 5472).
• Transactions between the LLC and its owner (annual Form 5472).
• Income from the Mercury Bank account (the IRS receives domestic banking data via standard US banking reporting — not via foreign FATCA).

What the IRS transmits to Paraguay (or does not transmit)

The crucial question for your tax life in Paraguay: does the IRS transmit this information to the DNIT?

• Via IGAs: the US has IGAs with many countries but the data transmitted is limited (primarily bank interest paid to non-residents). Data about your US LLC (business income, Mercury balances) is generally NOT automatically transmitted to Paraguay via the IGA.
• Via CRS: the US does NOT participate in CRS. Therefore, no CRS transmission of Mercury/LLC data to Paraguay.
• Via exchange on request: if the Paraguayan DNIT specifically requested information from the IRS about your US LLC (via the Multilateral Administrative Assistance Convention — MAAC), the IRS could provide data. But this requires a motivated request from the DNIT — which is extremely unlikely for an individual taxpayer (the DNIT does not launch international audits on US LLCs of freelancers earning €200,000/year).
• Practical result: data from your US LLC at Mercury Bank is known to the IRS but is NOT automatically transmitted to Paraguay or France. This is a zone of lesser transparency — not total opacity (exchange on request remains possible) but significantly less transparent than CRS.

What about France? Does the IRS transmit to the DGFiP?

If France challenges your Paraguayan residency and seeks information about your US LLC:

• Via the France-US IGA (Model 1): the IRS is supposed to transmit data on American accounts of French residents to the DGFiP. But you are NOT a French resident (you are a Paraguayan resident). If Mercury Bank has correctly identified you as a non-US resident / PY resident, the data is not flagged for transmission to France.
• Via exchange on request: the DGFiP can request specific information about your US LLC from the IRS via the France-US tax treaty or the MAAC. This mechanism is more likely than automatic exchange — but it requires the DGFiP to specifically target your file (as part of a tax audit).
• Practical result: in a French tax audit, the DGFiP can obtain information about your US LLC via exchange on request — but it must first know that the LLC exists (via your DAC6 declaration, your Form 3916 from the year of departure, or the CRS data from your other accounts). If it knows the LLC exists, it can request details from the IRS.

"Accidental US persons": The FATCA trap

Who are accidental US persons

A phenomenon specific to FATCA: "Accidental Americans" — individuals who have American citizenship unknowingly or without ever having used it:

• Born in the USA: Any person born on American soil automatically has US citizenship (14th Amendment, jus soli). A French person born in New York during their parents' business trip—even if they left the USA at 6 months old and never returned—is an American citizen and subject to FATCA.
• Born to American parents: A child born abroad to at least one American parent may have US citizenship by descent (jus sanguinis). Even without having applied for citizenship—it can be automatic.
• The extent: It is estimated that there are 300,000-500,000 "Accidental Americans" in Europe, including ~40,000 in France. Many do not know they are American—until their bank asks them to sign a FATCA form.

Consequences for Accidental Americans

• US reporting obligations: As US citizens, they must file a US tax return (Form 1040) every year—even if they have never lived in the USA and have no American income. Plus the FBAR if their foreign accounts exceed $10,000. Plus Form 8938 if their foreign assets exceed $200,000.
• Banking problems: European banks, faced with FATCA obligations, sometimes refuse to open accounts for individuals identified as US persons. Some close existing accounts of Accidental Americans—for fear of FATCA penalties.
• The solution: renounce US citizenship: Accidental Americans can renounce their US citizenship at a US consulate. The procedure costs $2,350 in administrative fees + potentially a US exit tax (if the "covered expatriate" criteria are met). After renunciation, FATCA no longer applies.

What this means for an expat in Paraguay

If you are French (no US citizenship), born in France (no US jus soli), to non-American parents (no US jus sanguinis): you are NOT an "Accidental American" and FATCA does NOT personally target you. Just check that you don't have a hidden US citizenship link (birth in the USA, American parent) before reassuring yourself.

If you ARE an Accidental American living in Paraguay: consult a US tax professional immediately. You have US reporting obligations (Form 1040, FBAR, Form 8938) in addition to your Paraguayan obligations. The good news: the Foreign Earned Income Exclusion (FEIE — ~$125,000 in 2026) and the Foreign Tax Credit (FTC) reduce or eliminate US tax for most expats. But the forms must be filed—failure to file is an offense.

FATCA-related reporting obligations for a non-American with a US LLC

Form W-8BEN-E

As a non-American owner of a US LLC, you (or your LLC) must provide a W-8BEN-E form (Certificate of Status of Beneficial Owner for United States Tax Withholding and Reporting) to US financial institutions that make payments to you:

• What: The W-8BEN-E certifies that the beneficial owner of the income is NOT a US person and claims the benefits of applicable tax treaties (if any).
• When: Upon opening the Mercury Bank account and renewed every 3 years (or when information changes).
• What you declare: Your identity, your country of tax residence (Paraguay), your FATCA classification (generally "Active NFFE" — Non-Financial Foreign Entity — if your LLC has real commercial activity).
• Impact: The W-8BEN-E allows Mercury Bank NOT to apply the 30% FATCA withholding tax on your income (since you are not a US person). Without a W-8BEN-E, Mercury Bank would have to withhold 30% of your US-sourced income—a massive and unnecessary cost.

Form 5472

Form 5472 (Information Return of a 25% Foreign-Owned U.S. Corporation or a Foreign Corporation Engaged in a U.S. Trade or Business) is the annual reporting obligation for your US LLC:

• Who must file it: Any US LLC "disregarded entity" owned by a foreigner (foreign-owned).
• What it contains: Identification of the LLC (name, address, EIN), identification of the foreign owner (your name, Paraguayan address, RUC), and "reportable transactions" between the LLC and its owner (distributions, capital contributions, loans, management fee payments).
• When: Filed annually with Form 1120 (LLC tax return—even if the LLC is "disregarded" and does not pay corporate tax, the 1120 is the vehicle for filing the 5472).
• Penalties for non-filing: $25,000 per unfiled or incomplete form. This is a significant penalty—do not neglect the 5472. Your American CPA handles it annually.
• FATCA Impact: Form 5472 feeds the IRS database on foreign entities in the USA. The IRS knows that you (a Paraguayan resident) own a US LLC. This information is available for exchange on request with other tax administrations.

FBAR (FinCEN 114) — does NOT concern you

The FBAR is an obligation to declare FOREIGN accounts held by US persons. As a non-US person, you do NOT have to file the FBAR. Your US LLC (US domestic entity) holds a US account (Mercury Bank)—this is not a "foreign account" for a US entity. No FBAR is necessary.

Exception: if you have US citizenship (Accidental American), you must file the FBAR for your non-US accounts (Paraguayan bank account, Interactive Brokers Ireland, etc.).

FATCA and Paraguayan banks

Paraguayan banks and FATCA

Paraguayan banks are FFIs (Foreign Financial Institutions) within the meaning of FATCA. Paraguay has signed an IGA with the USA. Paraguayan banks must therefore:

• Register with the IRS (GIIN).
• Identify accounts held by US persons among their clients.
• Transmit information on these accounts to the DNIT, which retransmits it to the IRS.

For you (non-US person resident in Paraguay): your Paraguayan bank account is NOT concerned by FATCA (you are not a US person). The Paraguayan bank does not transmit anything to the IRS concerning you. Your Paraguayan account is declared via CRS (if you have accounts in other countries)—not via FATCA.

FATCA and opening an account in Paraguay

When you open a bank account in Paraguay, the bank asks you to fill out a self-certification form including FATCA questions:

• "Are you a citizen or resident of the United States?" → Answer no (if applicable).
• "Do you have a U.S. taxpayer identification number (TIN/SSN)?" → Answer no (unless you have one—your US LLC's EIN does not count as a personal TIN).
• "Were you born in the United States?" → Answer no (if applicable).

If you answer "no" to all FATCA questions, the bank classifies you as a non-US person and transmits nothing to the IRS. If you answer "yes" to any of them, the bank classifies you as a potential US person and may request additional documents (proof of renunciation of US citizenship, or Form W-9).

The evolution of FATCA: towards reciprocity?

Pressure for reciprocity

The asymmetry of FATCA (the USA receives everything, gives little) is increasingly criticized:

• The EU: The European Parliament has adopted several resolutions asking the USA to join CRS or increase FATCA reciprocity. The EU threatens "countermeasures" if the USA does not cooperate more—but these threats have so far remained without concrete action.
• The OECD: The OECD pushes for the inclusion of the USA in the CRS. The OECD Secretary General has called the absence of the USA from the CRS a "major loophole" in the global transparency system.
• NGOs: Tax Justice Network regularly ranks the USA as the first or second "tax haven" in the world (Financial Secrecy Index) due to the opacity of its structures (LLCs, trusts, foundations) and its non-participation in the CRS.
• The US Congress: Bills to join the CRS have been introduced (TRUTH Act, Real Corporate Transparency Act) but none have passed. Opposition comes mainly from states like Delaware, Wyoming, and Nevada—whose economies rely in part on the registration of foreign companies (LLCs, trusts) that benefit from American opacity.

Evolution scenarios

Scenario	Probability	Impact for a PY expat with a US LLC
Status quo (USA does not join CRS)	50 %	No change. Mercury Bank remains in an area of lesser transparency compared to CRS.
Improved reciprocity (USA transmits more data via IGAs)	30 %	Mercury Bank data could be transmitted to the DGFiP/DNIT via strengthened IGAs. Limited impact if your position is legitimate (effective PY residence).
USA joins CRS	15 %	Mercury Bank would automatically transmit your data to Paraguay (and to France if it disputes your residence). Full transparency—but a non-event fiscally in Paraguay (0% territoriality).
Federal register of US beneficial owners (Corporate Transparency Act, in progress)	70 %	Owners of US LLCs would be registered in a federal register accessible to tax authorities. Your identity as the owner of the LLC would be more easily verifiable—but it already is via Form 5472.

The Corporate Transparency Act (CTA): the most likely change

The Corporate Transparency Act (adopted in 2021, currently being implemented by FinCEN) requires US companies to report their beneficial owners in a federal register:

• Who must report: "Reporting companies"—most LLCs, corporations, and similar entities created in the USA or registered to do business in the USA. Your US LLC is likely a "reporting company."
• What is reported: Name, date of birth, address, and identification number (passport or driver's license) of each beneficial owner (owner > 25% or person exercising substantial control).
• Access to the register: The register is accessible to federal authorities (IRS, FinCEN, FBI), foreign authorities (via international agreements), and potentially financial institutions (for KYC obligations). It is NOT accessible to the public (unlike the European beneficial owner register).
• Impact for you: Your identity as the owner of the US LLC will be in a US federal register. The IRS, DGFiP, and DNIT will be able to access it (through appropriate channels). This is a step towards transparency—but in practice, the IRS already knows your identity via Form 5472. The CTA does not fundamentally change your situation.

The FATCA strategy for an expat in Paraguay

The FATCA checklist

1. Confirm that you are NOT a US person: no US citizenship, no Green Card, no Substantial Presence Test. If you have any doubt (born in the USA, American parent), check with a US immigration lawyer.
2. Form W-8BEN-E: ensure Mercury Bank has a valid W-8BEN-E for your US LLC (renewed every 3 years). The W-8BEN-E certifies your non-US person status and avoids the 30% FATCA withholding.
3. Form 5472: file annually with the IRS (via your US CPA). $25,000 penalty for non-filing—do not take risks.
4. FATCA classification of the LLC: your US LLC must be correctly classified (generally "Active NFFE" if it has real commercial activity). Your CPA verifies this classification.
5. PY bank self-certification: when you open an account in Paraguay, correctly answer the FATCA questions (non-US person). No false declarations—it's an offense.
6. Stay informed about the Corporate Transparency Act: the BOI (Beneficial Ownership Information) reporting obligations of your US LLC must be complied with. Your registered agent or CPA handles this reporting.

Annual FATCA cost

Item	Cost	Frequency
US CPA (Form 5472 + LLC compliance)	$500-1,500/year	Annual
Registered agent (Wyoming/Delaware)	$100-300/year	Annual
BOI reporting (Corporate Transparency Act)	$0-200	Initial + update if change
Total	$600-2,000/year	Annual

The cost of FATCA/LLC compliance is modest ($600-2,000/year) compared to the tax savings it allows (0% on foreign income in Paraguay vs 30-55% in France). It's a compliance investment—not a cost. Don't skimp on the CPA: a poorly filed Form 5472 costs a $25,000 penalty.

Conclusion

FATCA is the US tax transparency law that forced the entire world to report US persons' accounts to the IRS. It is the most powerful tool for detecting offshore assets ever created—and the precursor to the global CRS. FATCA's nuclear sanction (30% withholding on US-sourced payments) guarantees universal cooperation from banks.

For a French expat in Paraguay with a US LLC: FATCA does NOT personally target you. You are not a US person (no US citizenship, no Green Card, no Substantial Presence Test). Your US LLC has reporting obligations (Form 5472, W-8BEN-E, BOI reporting) but no FATCA tax obligations. The cost of compliance is modest ($600-2,000/year). FATCA's asymmetry (the USA does not participate in CRS) creates an area of lesser transparency for your Mercury Bank account—a structural advantage over accounts in CRS countries.

Developments to watch (Corporate Transparency Act, pressure for reciprocity, eventual US accession to CRS) could increase transparency around your US LLC—but in a territorial country like Paraguay, more transparency does not mean more tax. This is the constant refrain of this guide: transparency is your ally when the law of your country of residence exempts your foreign income.

FATCA scares fraudsters. It should not scare honest expats in Paraguay—it should reassure them. The world is transparent. Your accounts are declared. Your position is legal. And your tax on foreign income is 0%. FATCA changes nothing in this equation.

Do you want a FATCA-compliant US LLC and a 0% residence? Contact our team for comprehensive support: Paraguayan residence (from €1,400), US LLC with integrated FATCA compliance, DNIT accounting (€30/month), and coordination with your US CPA. FATCA is a formality—Paraguay is the strategy.