FBAR Signature Authority: When You Must Report Accounts You Don't Own

One of the most commonly misunderstood FBAR rules is signature authority. You can have an FBAR filing obligation for a foreign account even if you do not own the money, do not benefit from the account, and have never deposited a dollar into it. If you can sign checks, transfer funds, or direct investments, you may need to report the account.

What Is Signature Authority?

For FBAR purposes, signature authority means you have the ability to control the disposition of money, funds, or other assets in the account by direct communication with the financial institution.

This includes:

• Signing checks or other negotiable instruments.
• Initiating wire transfers or electronic payments.
• Directing investments or reallocating assets within the account.
• Having online banking credentials that allow transactions.
• Being named as an authorized signer on account documents.

It does not include:

• Read-only access (viewing balances without transactional ability).
• Receiving account statements as a courtesy.
• Advising the account owner without actual authority to transact.

Common Signature Authority Scenarios

Employer Operating Accounts

If you are an officer, director, or employee of a company with a foreign bank account, and you have signature authority over that account, you must report it on your personal FBAR if the aggregate threshold is met.

Example: You are the CFO of a US company with a subsidiary in Mexico. The subsidiary has a peso operating account at BBVA Mexico, and you are a signatory on the account. Even though the account belongs to the Mexican subsidiary, you must report it on your personal FBAR.

Privately Held Business Accounts

If you own more than 50% of a foreign entity (corporation, partnership, LLC), and that entity has foreign financial accounts, the accounts are reportable on your personal FBAR. This is treated as a financial interest, not just signature authority.

Family Member Accounts

Many expats help manage the finances of elderly parents, siblings, or adult children who live abroad. If you are an authorized signer on their foreign bank account:

• You must report the account on your FBAR.
• The account owner (your parent or sibling) must also report it on their own FBAR if they are a US person.
• Both of you report the full value.

Nonprofit and Trust Accounts

If you serve as a treasurer, trustee, or authorized representative of a foreign nonprofit, foundation, or trust, and you have signature authority over the organization's foreign accounts, you must report those accounts on your personal FBAR.

The Publicly Traded Company Exception

FinCEN provides a limited exception for officers and employees of publicly traded companies who have signature authority over the company's foreign accounts.

To qualify:

• The company must be publicly traded on a US national securities exchange.
• The officer or employee must report the account to the company's US person with FBAR filing obligations.
• The exception applies only to signature authority—not to financial interest.

This exception does NOT apply to:

• Privately held companies.
• Foreign subsidiaries of publicly traded companies (unless separately qualified).
• Partnerships or LLCs.
• Nonprofit organizations.

How to Report Signature Authority Accounts

On the FBAR, for each account over which you have signature authority:

1. Enter the account details: Institution name, account number, address, maximum value.
2. Indicate signature authority: In the ownership section, select "Signature authority only" (or the equivalent option in the BSA E-Filing System).
3. Identify the owner: Provide the name and address of the legal owner of the account (your employer, family member, nonprofit, etc.).
4. Report the full value: You report the maximum value of the account during the year, even though none of the money is yours.

Penalty Exposure for Signature Authority Accounts

Signature authority accounts carry the same penalty exposure as owned accounts. A non-willful violation can result in penalties up to $16,536 per unfiled FBAR per year. A willful violation can result in penalties up to the greater of $165,353 or 50% of the account balance.

Because signature authority accounts are often large (business operating accounts, trust accounts), the penalty exposure can be substantial.

What to Do If You Discover a Signature Authority Obligation

If you realize you have signature authority over a foreign account that should have been reported:

1. Determine whether the account exceeded the $10,000 aggregate threshold in each unreported year.
2. Assess your filing history: Are your personal tax returns current?
3. Evaluate catch-up options:

• If you have no unreported income, the Delinquent FBAR Submission Procedures may apply.
• If you have unreported income or other compliance gaps, the Streamlined Filing Compliance Procedures may be appropriate.

4. Consult a professional: Signature authority situations often involve business entities, trusts, or complex family structures. Professional guidance is recommended.

How FileAbroad Helps With Signature Authority Accounts

FileAbroad screens and prepares FBARs that include signature authority accounts within a written scope:

• Authority review: We help you determine whether your access to an account constitutes signature authority under FinCEN's rules.
• Owner identification: We document the legal owner of each signature authority account for accurate FBAR reporting.
• Valuation: We calculate maximum values and apply correct exchange rates.
• Catch-up screening: If you have missed prior years, we review your filing history and recommend the appropriate compliance path.

Start with the FBAR scope review to discuss signature authority questions.

Official FinCEN sources

• Purpose of the FBAR
• IRS FBAR filing and recordkeeping guidance
• Current FBAR line-item filing instructions