FATCA for US Citizens With a Second Passport: Reporting Rules, Risks, and Tax Implications

FATCA — the Foreign Account Tax Compliance Act — is a US law introduced in 2010 to help the IRS track foreign financial assets held by US persons^{[1]Source: IRS — Foreign Account Tax Compliance Act}. Under FATCA, certain US persons are obliged to report their foreign financial assets to the Internal Revenue Service, IRS, on an annual basis^{[2]Source: IRS — FATCA information for individuals}.

Who is a US Person under FATCA?

FATCA applies to specified individuals, often referred to as US persons for reporting purposes. Many people assume that only US residents fall under FATCA rules, but the definition is broader.

A person may be considered a US person under FATCA if they are:

1. US citizens, regardless of where they live.
2. Resident aliens of the US for any part of the tax year. This includes foreign nationals who meet the US residency rules, such as the substantial presence test.
3. Nonresident aliens who elect to be treated as a US resident in order to file a joint US income tax return with a spouse.
4. Nonresident aliens who are bona fide residents of American Samoa or Puerto Rico^{[3]Source: IRS — Instructions for Form 8938}.

As a result, FATCA obligations can apply not only to Americans living in the US but also to US citizens residing abroad, including those who obtain a second passport under citizenship by investment programmes.

Foreign bank reporting under FATCA

FATCA does not only impose reporting obligations on individuals. It also requires foreign banks, investment firms, and other financial institutions to identify customers who qualify as US persons and report information about their accounts to the IRS^{[4]Source: IRS — Summary of FATCA reporting for U.S taxpayers}.

To facilitate the process, the US has signed Intergovernmental Agreements, IGAs, with many countries. FATCA reporting under these agreements works through two models:

1. Model 1 IGA — foreign banks report information about US-person account holders to their local tax authority, which then sends the data to the IRS.
2. Model 2 IGA — foreign financial institutions report information about US-person account holders directly to the IRS.

Which model applies depends on the agreement between the US and the country where the financial institution operates^{[5]Source: U.S. Department of the Treasury — Foreign Account Tax Compliance Act}. For example, the Caribbean countries offering citizenship by investment and Türkiye operate under a Model 1 IGA with the US.

Banks may identify a US person through documents or details such as a US passport, US address, US phone number, place of birth in the US, or other indications of a connection to the US. A second passport does not remove these indicators if the account holder is still a US citizen.

FATCA duties after second citizenship

For US citizens with a second passport, FATCA becomes relevant when they open or maintain accounts outside the US. An account in St Kitts and Nevis, Grenada, Nauru, Türkiye, or another jurisdiction may still be reported to the IRS if the holder is identified as a US person.

As a result, FATCA creates a two-layer reporting system. The individual may have to disclose foreign assets to the IRS, while the foreign financial institution may separately report information about the same accounts.

A second citizenship can improve mobility and expand personal planning options, but it does not by itself change US tax status or remove FATCA reporting duties.

Form 8938 is one of the key FATCA reporting obligations for US persons with foreign financial assets^{[6]Source: IRS — Instructions for Form 8938}. Whether a filing is required depends on the taxpayer's residence status, filing status, and the total value of specified foreign financial assets. For citizenship by investment applicants, understanding both the filing thresholds and the types of assets that must be reported is essential.

Form 8938 is separate from FBAR, or FinCEN Form 114. Some foreign accounts may need to be reported under both regimes, while some Form 8938 overlap exceptions do not remove separate FBAR duties.

When must Form 8938 be filed?

Form 8938 is filed together with the annual US individual income tax return, Form 1040. For most taxpayers, the filing deadline is April 15th following the tax year.

US citizens whose tax home and abode are outside the US and Puerto Rico receive an automatic filing extension until June 15th. However, interest begins to accrue on any unpaid tax after April 15th. Additional filing extensions may be available if requested from the IRS^{[7]Source: IRS — U.S. citizens and resident aliens abroad}.

Not all US persons are required to file Form 8938. A filing obligation arises when the aggregate value of a specified US person's foreign financial assets exceeds the applicable threshold. These thresholds depend on filing status and whether the taxpayer qualifies as living abroad under IRS rules^{[8]Source: IRS — Do I need to file Form 8938, Statement of Specified Foreign Financial Assets?}.

The IRS considers a taxpayer to be living abroad if they have a tax home in a foreign country and meet one of the following tests:

1. Bona fide residence test, which requires residence in a foreign country for an uninterrupted period that includes an entire tax year.
2. Physical presence test, which requires at least 330 full days spent in one or more foreign countries during a 12-month period ending in the tax year.

Holding a citizenship by investment passport does not automatically qualify a person for the higher foreign-resident thresholds. A US citizen must actually establish a foreign tax home and satisfy one of the IRS residency tests. For example, obtaining citizenship of Antigua and Barbuda or Grenada while continuing to live primarily in the US leaves the standard US-resident thresholds unchanged.

Which foreign assets must be reported under FATCA?

Specified foreign financial assets generally include:

1. Foreign bank, brokerage, deposit, custodial, and other financial accounts maintained by a foreign financial institution.
2. Shares, securities, and other investments issued by non-US persons and held outside a financial institution.
3. Interests in foreign corporations, partnerships, trusts, estates, foundations, and similar entities held for investment purposes.
4. Financial instruments or contracts with a non-US issuer or counterparty, including certain derivatives.
5. Cash-value life insurance and annuity contracts issued by foreign insurers.
6. Certain foreign pension, retirement, deferred-compensation, and similar arrangements, depending on their legal structure.

Families that use foreign trusts, foundations, holding companies, or investment vehicles should review these arrangements separately. The structure itself may create a Form 8938 obligation, even if the underlying asset would not be reportable on its own.

Which assets are excluded?

Not every foreign asset must be reported on Form 8938. The IRS excludes certain assets from the definition of a specified foreign financial asset.

1. Foreign real estate owned directly. Foreign real estate held in an individual's personal name is not reported on Form 8938. For example, a home in Portugal or a Caribbean citizenship by investment property purchased directly by the investor does not need to be disclosed.

The situation changes when real estate is held through a foreign company, trust, foundation, partnership, or similar entity. In that case, the property itself is still not reportable, but the ownership interest in the entity may qualify as a specified foreign financial asset and may need to be reported^{[9]Source: IRS — Basic questions and answers on Form 8938}.

2. Certain accounts maintained by US payors. This category includes accounts held with a US branch of a foreign financial institution, a foreign branch of a US financial institution, and certain foreign subsidiaries of US corporations.

Examples of non-reportable accounts maintained by US financial institutions include:

1. US mutual fund accounts.
2. Traditional and Roth IRAs.
3. Section 401(k) retirement accounts.
4. Other qualified US retirement plans.
5. Brokerage accounts maintained by US financial institutions.

US financial accounts do not become reportable merely because they hold foreign investments. For example, foreign stocks or mutual funds held in a US brokerage account do not need to be reported on Form 8938 because the account is maintained by a US financial institution.

3. Certain interests in foreign trusts and estates. A beneficial interest in a foreign trust or foreign estate does not have to be reported if the taxpayer does not know and has no reason to know that the interest exists. However, receiving a distribution from the trust or estate establishes knowledge of the interest, which may trigger reporting obligations.

4. Foreign social security and similar government programmes. Interests in foreign social security, social insurance, and similar government-run programmes are not considered specified foreign financial assets and do not need to be reported on Form 8938.

5. Assets reported on certain other IRS forms. To avoid duplicate reporting, Form 8938 provides exceptions for some assets that are already disclosed on other international information returns. These may include:

1. Foreign trusts and foreign gifts reported on Form 3520 or Form 3520-A.
2. Interests in foreign corporations reported on Form 5471.
3. Passive foreign investment companies reported on Form 8621.
4. Interests in foreign partnerships reported on Form 8865.
5. Certain Canadian retirement savings plans reported on Form 8891.

Although these assets may not need to be listed separately on Form 8938, their value is still taken into account when determining whether the taxpayer exceeds the Form 8938 reporting threshold. In other words, the exception prevents duplicate disclosure but does not exclude the assets from the threshold calculation.

The exception applies only to Form 8938. Separate reporting obligations, such as FBAR filing requirements for foreign financial accounts, may still apply.

6. Foreign currency held directly. Foreign currency held directly by an individual is not a specified foreign financial asset and does not need to be reported on Form 8938. However, currency held in a foreign bank or brokerage account may be reportable because the account itself is a specified foreign financial asset.

7. Precious metals and other tangible assets held directly. Gold, silver, jewellery, artwork, antiques, collectibles, and similar tangible assets owned directly are not specified foreign financial assets. However, a financial instrument linked to those assets, such as a certificate issued by a foreign person, may be reportable.

What happens if FATCA filings are missed?

Missed Form 8938 filings can lead to three main consequences:

1. Fixed penalties. The basic penalty for failing to file Form 8938 when required is $10,000. If the IRS sends a notice and the taxpayer still does not file within 90 days, additional penalties may apply, up to $50,000.
2. Tax-related penalties. A 40% accuracy-related penalty may apply if undisclosed foreign financial assets lead to an understatement of tax.
3. Longer IRS review period. If more than $5,000 of income connected to foreign financial assets is omitted, the IRS has 6 years to assess tax. If Form 8938 was not filed at all, the limitation period for the relevant items may not start until the form is filed.

US taxpayers who discover missed FATCA filings should consult a US international tax adviser before contacting the IRS or submitting late forms. In some non-willful cases, IRS streamlined procedures may help correct past filings and reduce or avoid penalties.

Streamlined procedures for missed filings

The IRS streamlined procedures may help US taxpayers correct missed FATCA, FBAR, or income-tax filings if the failure was unintentional. Eligibility depends on the taxpayer’s residence, filing history, and facts behind the missed filings.

1. Streamlined Foreign Offshore Procedure — for US taxpayers living outside the US. To use the procedure, the taxpayer must:

• file the most recent 3 years of delinquent or amended US tax returns;
• include any required international information returns, such as Form 8938;
• file the most recent 6 years of FBARs;
• pay any tax and interest due;
• submit a signed certification explaining that the failure was non-willful^{[10]Source: IRS — Streamlined filing compliance procedures}.

2. Streamlined Domestic Offshore Procedure — for US taxpayers living in the US. It follows the same core filing requirements. The key difference is the additional 5% miscellaneous offshore penalty: it is calculated on the highest aggregate balance or value of relevant foreign financial assets during the covered period^{[11]Source: IRS — U.S. taxpayers residing in the United States}.

For citizenship by investment holders, the procedures may be useful if foreign accounts, assets, or missed filings are discovered during bank onboarding, FATCA self-certification, or source-of-funds checks. If the taxpayer qualifies and completes the procedure correctly, some penalties may be waived or reduced.

US citizens may face several reporting duties when they hold assets abroad. For example, Americans who own or control foreign companies, partnerships, trusts, or investment structures may also need to file:

1. Form 3520 and Form 3520-A — for foreign trusts and certain foreign gifts.
2. Form 5471 — for certain interests in foreign corporations.
3. Form 8621 — for investments in Passive Foreign Investment Companies, PFICs.
4. Form 8865 — for certain interests in foreign partnerships.

The most common reporting duties are Form 8938 under FATCA and the FBAR, officially FinCEN Form 114. FBAR is used to report foreign financial accounts, such as bank or brokerage accounts, when their total value exceeds the reporting threshold^{[12]Source: IRS — Comparison of Form 8938 and FBAR requirements}.

Form 8938 and FBAR are not interchangeable. They are filed with different US government bodies, apply to different types of assets, and use different reporting thresholds. Filing one does not replace the other.

For example, a US citizen with $60,000 in a foreign bank account may need to file both forms. The account exceeds the FBAR threshold of $10,000 and may also exceed the Form 8938 threshold for a US resident.

US citizens can apply for citizenship by investment, CBI, programmes in the Caribbean, the Pacific, Africa, and the Middle East. Immigrant Invest works with several such programmes around the world, including:

• St Kitts and Nevis,
• Dominica,
• Grenada,
• St Lucia,
• Antigua and Barbuda,
• Vanuatu,
• São Tomé and Príncipe,
• Nauru,
• Türkiye,
• Egypt.

Successful applicants receive a second passport and citizenship rights, which can support a family Plan B, improve mobility, diversify personal and asset-planning options, and make it easier to access other countries for residence or business.

Obtaining a second passport does not change US tax obligations. Under the principle confirmed in Cook v. Tait 1924, the US taxes its citizens on worldwide income regardless of where they live or how many nationalities they hold. As a result, second citizenship does not remove FATCA, FBAR, or other international reporting duties^{[13]Source: U.S. Supreme Court — Cook v. Tait, 265 U.S. 47 1924}.

Some citizenship by investment countries have FATCA agreements with the US, and this affects how banks handle US-person accounts:

1. Caribbean CBI countries and Türkiye have FATCA Intergovernmental Agreements, IGAs, with the US. All use the Model 1 framework: banks identify US-person account holders and report them to the local tax authority, which then exchanges the data with the IRS.
2. Egypt, Nauru, São Tomé and Príncipe, and Vanuatu do not have FATCA IGAs with the US. FATCA checks may still apply, but banks may report US-person account information through their own arrangements with the IRS, so the process is less standardised.

In practice, banks in any CBI country may ask about US-person status and apply FATCA checks. The IGA status mainly affects how standardised the reporting route is, not whether US duties exist. The table below compares CBI programmes and their FATCA agreement status.

US citizens can use several legal tools to reduce double taxation. These tools affect the amount of tax owed, not FATCA, FBAR, or other reporting obligations. Even when no additional US tax is due, foreign assets and accounts may still need to be reported.

Foreign Earned Income Exclusion

The Foreign Earned Income Exclusion, claimed on Form 2555, allows US citizens living abroad to exclude part of their foreign earned income from US taxation. For tax year 2026, the maximum exclusion is $132,900 per person^{[14]Source: IRS — Figuring the foreign earned income exclusion}.

To qualify, the taxpayer must have a foreign tax home and meet one of the following tests:

1. Bona fide residence test — residence in a foreign country for an uninterrupted period that includes an entire tax year.
2. Physical presence test — at least 330 full days spent outside the US during a 12-month period^{[15]Source: IRS — Foreign earned income exclusion}.

To support a claim, taxpayers should keep records showing that they meet the residence requirements. This may include entry and exit stamps, residence permits, rental agreements, utility bills, employment contracts, tax-residency certificates, and other documents demonstrating a foreign tax home and sufficient time spent abroad. The IRS does not require these documents to be submitted with Form 2555, but they should be retained in case the claim is reviewed.

Foreign Tax Credit

The Foreign Tax Credit, claimed on Form 1116, allows taxpayers to offset US tax with income taxes already paid to another country^{[16]Source: IRS — Foreign Tax Credit for Individuals}.

Unlike the Foreign Earned Income Exclusion, the Foreign Tax Credit does not have a single annual dollar limit. The credit is limited to the amount of US tax that applies to the same foreign-source income, calculated separately by income category.

In practice, if a US citizen pays income tax abroad, they may be able to claim a credit for some or all of that tax against their US tax liability. For example, if a taxpayer owes $8,000 in US tax on foreign-source income but has already paid $8,000 or more in income tax to another country on the same income, the Foreign Tax Credit may reduce the additional US tax to zero.

Tax treaties

The US has income tax treaties with over 65 countries, including the UK, Canada, Germany, France, Italy, Spain, Portugal, Switzerland, and Japan^{[17]Source: IRS — United States income tax treaties}. These treaties can provide relief for certain types of income, such as pensions, social security payments, or specific investment income.

However, most US tax treaties contain a saving clause that preserves the US government's right to tax its own citizens. As a result, treaty benefits for US citizens may be more limited than people expect.

Citizenship by investment jurisdictions usually do not provide treaty-based relief for US citizens. Antigua and Barbuda, Dominica, Grenada, St Kitts and Nevis, St Lucia, Nauru, and Vanuatu do not have comprehensive income tax treaties with the US. Egypt and Türkiye are exceptions: both have income tax treaties with the US.

At the same time, these jurisdictions do not tax people based only on citizenship. This means that obtaining a second passport does not automatically create double taxation, as long as the investor does not become a tax resident of the new country.

A second passport does not end US tax obligations. For US citizens, FATCA duties and US taxation on worldwide income usually continue until citizenship is formally relinquished. In most cases, this means renouncing US citizenship before a US consular officer abroad.

Renunciation and citizenship by investment are separate legal processes. Obtaining a passport of Grenada, St Kitts and Nevis, Nauru, Türkiye, or another country does not count as renunciation and does not automatically change US tax status.

When exit tax may apply

US citizens who renounce citizenship may fall under the US exit-tax rules. The IRS applies special rules to certain former citizens, known as covered expatriates. This status can result in an exit tax on unrealised gains. 

A person becomes a covered expatriate if, at the time of expatriation, they meet at least one of these tests:

1. Their average annual US income tax liability for the 5 previous tax years is above the indexed threshold. For 2026, the threshold is $211,000.
2. Their net worth is $2,000,000 or more on the date of expatriation.
3. They cannot certify on Form 8854 that they have complied with US federal tax obligations for the 5 previous years^{[18]Source: IRS — Expatriation tax}.

For covered expatriates, the IRS applies a mark-to-market rule. This means the person is treated as if they sold their worldwide assets at fair market value on the day before expatriation. Any unrealised gain above the annual exclusion may be taxed. For 2026, the exclusion is $910,000^{[19]Source: KPGM — United States Inflation Adjustments for Tax Year 2026}.

Tax compliance before renunciation

Renunciation is not a shortcut for fixing past non-compliance. A person with missed income tax returns, unfiled Forms 8938, or outstanding FBARs may fail the 5-year tax compliance certification on Form 8854. This can make them a covered expatriate even if they do not meet the income-tax or net-worth thresholds.

The safer order is:

1. Review past US tax compliance.
2. Correct any missed filings.
3. Analyse whether the exit tax may apply.
4. Only then consider the formal renunciation process.

Exit-tax rules are highly fact-specific. Any US citizen considering renunciation should consult a US international tax adviser before making a decision.

The issues below often appear when US citizens treat second citizenship as a tax or banking solution. Planning before the application is filed is much easier than correcting reporting gaps, banking problems, or source-of-funds inconsistencies later.

Mistaking a second passport for tax relief

A second passport does not cancel US tax, FATCA, or FBAR obligations. US citizens remain subject to US reporting rules until they formally give up US citizenship. Foreign accounts and assets may still need to be reported even if no additional US tax is due. Penalties can apply for missed filings regardless of whether the taxpayer owes money to the IRS.

Confusing citizenship and tax residence

Citizenship and tax residence are separate concepts. A second citizenship gives a person another nationality, but it does not automatically change where they are taxed. 

For US citizens, worldwide income remains taxable by the US until citizenship is formally relinquished. Confusing second citizenship with tax residence can lead to wrong assumptions about filing duties, FATCA reporting, and long-term tax planning.

Missing filings after opening foreign accounts

Common filing errors include using the wrong currency conversion method, applying both the Foreign Earned Income Exclusion and the Foreign Tax Credit to the same income, and confusing local tax-year deadlines with US deadlines.

The US filing extension can give more time to submit a return, but it does not usually move the April 15th payment deadline. Interest may start to accrue if tax is paid late.

Assuming one filing covers all reporting obligations

One foreign structure can trigger several US reporting duties. For example, a US citizen with Grenada citizenship, a foreign company, and a Caribbean bank account may need to file FBAR for the account, Form 8938 for foreign financial assets, and Form 5471 for the company.

Overlap relief may reduce duplicate reporting on Form 8938, but it does not remove separate obligations such as FBAR.

Keeping US state-tax ties after moving abroad

A second passport and a foreign move do not automatically end US state-tax residency. States such as California, New York, and New Jersey may continue to treat a person as a resident if they keep domicile ties there. This can lead to continued state income tax filings, late-filing penalties, and audits. A domicile review should be completed before relocation, not after.

Discovering US-person status too late

Some people discover their US-person status only when opening a foreign bank account. This can happen to people born in the US, born abroad to a US parent, or otherwise treated as US citizens under US nationality rules.

A FATCA self-certification or bank compliance review may reveal the issue and lead to questions about past US tax returns, FATCA filings, and FBAR disclosures. Anyone with a US birthplace or US parent should check their status before applying for citizenship by investment.

Treating renunciation as a quick exit

Renouncing US citizenship is not a shortcut for past non-compliance. The process usually requires the taxpayer to be fully compliant for the previous 5 years and may trigger exit-tax analysis.

For high-net-worth applicants, renunciation should be reviewed before any decision is made. The process is serious, often irreversible, and should be handled with US international tax counsel.

Immigrant Invest is a licensed agent for citizenship by investment programmes and has over 20 years of experience in investment migration. We have supported more than 10,000 clients in obtaining residence permits and citizenship.

Immigrant Invest is not a tax adviser and does not replace advice from a US international tax specialist. However, the team can coordinate the immigration process with external tax professionals, so that the citizenship plan does not conflict with US reporting obligations, FATCA rules, or long-term tax planning.

Immigrant Invest assists US citizens with:

• preliminary Due Diligence before documents are collected or funds are committed;
• selection of a suitable citizenship by investment programme;
• document collection, certification, apostille, and translation;
• preparation of source-of-funds documents, including income, business, investment, or asset-sale records;
• review of family composition and dependant eligibility;
• coordination with banks, licensed agents, and government authorities;
• explanation of programme costs beyond the headline investment amount;
• coordination with external US tax advisers where FATCA, FBAR, Form 8938, or exit-tax questions arise;
• support during Due Diligence, interviews, approval, oath, and passport issuance.

Our goal is to prepare the application before problems appear. Source-of-funds gaps, unclear family documentation, past visa refusals, banking issues, or tax-sensitive questions are easier to address before submission than during government Due Diligence.

1. Second citizenship in the Caribbean, the Pacific, Africa, or the Middle East does not change US tax status. US citizens remain taxed on worldwide income, and a second passport does not remove FATCA, FBAR, or other US international reporting obligations.
2. Form 8938 under FATCA applies once foreign financial assets exceed the threshold: from $50,000 for most US residents and from $200,000 for taxpayers living abroad.
3. Form 8938 is submitted as part of Form 1040, the annual US individual income tax return. For most taxpayers, the deadline is April 15th after the tax year ends. Missed Form 8938 filings can trigger a $10,000 penalty, with higher penalties possible after IRS notice.
4. Direct foreign real estate is not reportable on Form 8938, but ownership through a foreign company, trust, or foundation may be.
5. Banks may identify US persons through a US passport, US birthplace, US address, US phone number, or other US connection.
6. Foreign Earned Income Exclusion, Foreign Tax Credit, and treaty provisions can reduce double taxation, but they do not remove reporting duties. Only formal relinquishment of US citizenship can end US-citizen worldwide tax and FATCA obligations, and renunciation may trigger exit-tax rules.