What Is FBAR Financial Interest in a Foreign Account?

For FBAR purposes, you have a financial interest in a foreign account when you are the account’s owner of record, when someone else holds it as your agent or nominee, when you own more than 50% of an entity that holds it, or when you occupy certain positions in a trust that owns it. Once the combined value of every foreign account in which you hold such an interest passes $10,000 at any point during the calendar year, you must file FinCEN Form 114.¹ The definition reaches further than most people expect, and the government looks past paperwork to find whoever really controls or benefits from the money.

Owner of Record and Joint Accounts

The plainest form of financial interest is legal title. If your name is on the account, you have a financial interest, and it makes no difference whether you opened it for yourself or for someone else’s benefit. An account you set up to manage funds for a relative is still your financial interest because you are the owner of record.²

Joint accounts create a reporting obligation for every U.S. person named on the account. If you and your spouse jointly hold a foreign bank account worth $50,000, each of you has a financial interest in the full $50,000. The balance is not split. Both of you file, and each reports the entire account value.²

Accounts Held Through an Agent or Nominee

Keeping your name off the paperwork does not remove your financial interest. When the owner of record is an agent, nominee, attorney, or anyone else acting on your behalf, the reporting obligation is yours.² The regulation looks past the name on the bank documents to find the person who actually controls or benefits from the money.

This comes up often with attorneys holding client funds abroad or family members managing accounts for elderly relatives. If your lawyer deposits settlement proceeds into a foreign account in the lawyer’s name but on your behalf, you hold the financial interest. Any arrangement where one person holds a foreign account for the benefit of another works the same way. Regulators treat these setups the same as direct ownership for penalty purposes, so vague documentation of who really controls the account is a trap worth avoiding.

Ownership Through a Business Entity

A majority stake in any entity that holds a foreign account creates a financial interest for the individual owner. The threshold across entity types is more than 50%, but what gets measured varies by structure.

For corporations, you have a financial interest if you own, directly or indirectly, more than 50% of the total share value or more than 50% of the voting power.²
For partnerships, you have a financial interest if you own more than 50% of the profits or more than 50% of the capital. LLCs taxed as partnerships fall under this rule.²
For any entity that does not fit the corporation or partnership categories, you have a financial interest if you own more than 50% of the voting power, total equity value, assets, or interest in profits.³

These rules apply regardless of whether the entity was organized under U.S. or foreign law. What matters is the ownership percentage and the fact that the entity holds a foreign account.

Indirect and Tiered Ownership

The word “indirectly” carries weight. If you own 100% of a domestic LLC, and that LLC owns 100% of a foreign subsidiary with a bank account in London, you have an indirect financial interest in that foreign account. FinCEN looks through chains of ownership to find the U.S. person at the top.³ Stacking entities to stay under 50% does not work: if the math still exceeds 50% at the end of the chain, you file.

The Anti-Avoidance Rule

The regulation includes a broad backstop. Anyone who causes an entity to be created for the purpose of dodging FBAR reporting has a financial interest in every foreign account that entity holds, whatever the ownership percentages look like on paper.² The rule exists because the 50% thresholds invite creative structuring, and FinCEN wanted a catchall.

Trusts

Trusts can create a financial interest for several different parties depending on the role each one plays.

Beneficiaries

A trust beneficiary has a financial interest in the trust’s foreign accounts if they hold a present beneficial interest in more than 50% of the trust’s assets or receive more than 50% of the trust’s current income.² Distributions and asset allocations shift over time, so a beneficiary who was under the 50% line last year may cross it this year. Track your share annually if you receive income from an international trust.

Grantors

When a U.S. person is treated as the owner of any portion of a trust for federal income tax purposes under the grantor trust rules, that person has a financial interest in every foreign account the trust holds. The test comes from the Internal Revenue Code provisions that attribute trust income, deductions, and credits back to the grantor.⁴ This applies even when the grantor receives no distributions and has no day-to-day involvement. If the IRS treats you as the trust’s owner for tax purposes, FinCEN treats you as having a financial interest for FBAR purposes.

Trustees

Trustees hold legal title to trust assets, which puts them within the owner-of-record rule. Even where the trustee is a financial institution rather than an individual, governing documents matter: a trust protector who can replace the trustee or veto investment decisions may trigger a reporting obligation for the person who appointed them.

Signature Authority Is a Separate Trigger

Financial interest is not the only reason someone files an FBAR, and it is worth keeping the two ideas separate. A person with signature authority over a foreign account must also report it, even with no financial interest of any kind. Signature authority means the power to control the disposition of money in the account by communicating directly with the foreign bank. This catches corporate officers and employees who can move company money abroad without owning any part of the company. Broad exemptions exist for officers and employees of federally regulated banks, SEC- or CFTC-registered financial institutions, and companies with equity securities listed on a U.S. national exchange, generally excusing them from reporting signature authority over their employer’s foreign accounts.³

When a Financial Interest Becomes a Filing Obligation

Identifying a financial interest is only step one. The filing requirement kicks in when the aggregate value of every foreign account in which you have a financial interest (or signature authority) exceeds $10,000 at any time during the calendar year.¹ That is a combined total, not a per-account threshold. Five accounts holding $2,500 each trigger the requirement just as a single $11,000 account does.

The FBAR is due April 15 following the calendar year being reported, with an automatic extension to October 15 that requires no request.⁵ It is filed electronically through FinCEN’s BSA E-Filing System and is not attached to your tax return.¹

Each account’s maximum value during the year must be reported. FinCEN describes this as a reasonable approximation of the greatest value of currency or other assets in the account at any point during the calendar year, and periodic account statements are acceptable if they fairly reflect the peak balance. Amounts denominated in foreign currency are converted using the Treasury’s Financial Management Service exchange rate for the last day of the calendar year; if that rate is unavailable, another verifiable rate may be used with the source noted. All amounts are rounded up to the next whole dollar.⁶

What Happens If You Don’t File

The stakes attached to the definition are steep, which is why the definition matters so much.

The statutory maximum for a non-willful violation is $10,000, adjusted upward for inflation each year.⁷ In Bittner v. United States (2023), the Supreme Court held that the non-willful penalty applies per annual report, not per account, ending the government’s practice of stacking $10,000 penalties for each unreported account on a single year’s form.⁸ No penalty applies at all if the violation resulted from reasonable cause and the account balance was properly reported on your tax return.

Willful violations carry a civil penalty equal to the greater of $100,000 (also inflation-adjusted) or 50% of the account balance at the time of the violation.⁷ The reasonable cause exception does not apply to willful conduct. The line between “non-willful” and “willful” often turns on whether the taxpayer knew about the requirement or showed reckless disregard for it, a fact-intensive question that generates significant litigation.

A willful failure to file can also be prosecuted criminally, with a maximum of $250,000 in fines and five years in prison. Where the violation is part of a pattern of illegal activity involving more than $100,000 over 12 months, the ceiling doubles to $500,000 and ten years.⁹ Criminal prosecutions are rare compared to civil penalties, but the Department of Justice pursues them in cases involving large balances or deliberate concealment.

1
Financial Crimes Enforcement Network (FinCEN). Report Foreign Bank and Financial Accounts
2
eCFR. 31 CFR 1010.350 – Reports of Foreign Financial Accounts
3
Financial Crimes Enforcement Network (FinCEN). BSA Electronic Filing Requirements for Report of Foreign Bank and Financial Accounts (FinCEN Form 114)
4
Office of the Law Revision Counsel. 26 USC 671 – Trust Income, Deductions, and Credits Attributable to Grantors and Others as Substantial Owners
5
Internal Revenue Service. Report of Foreign Bank and Financial Accounts (FBAR)
6
Financial Crimes Enforcement Network (FinCEN). Reporting Maximum Account Value
7
Office of the Law Revision Counsel. 31 USC 5321 – Civil Penalties
8
Supreme Court of the United States. Bittner v. United States
9
Office of the Law Revision Counsel. 31 USC 5322 – Criminal Penalties