Missed FBAR on Prepaid Currency Cards and Travel Money Accounts
By US-UK Tax Advisors cross-border tax team · Last updated OCT 06, 2026

Missed FBAR on a prepaid currency card: what 31 CFR 1010.350 covers, what FinCEN has and has not said, how to value each wallet and how to correct past years.
Key Takeaways
- Covers cross-border tax for US-UK cross-border taxpayers
- Applies to US persons with UK ties and UK residents with US income
- Highlights the filing, reporting and tax-treaty points to check
- Get personalised advice before acting on your own facts
A Missed FBAR on a prepaid currency card or travel money account is usually a genuine filing gap rather than a technicality: where a UK institution holds a reloadable balance in your name that you can top up, hold and withdraw, we treat it in the returns we prepare as a foreign financial account that belongs on FinCEN Form 114. FinCEN has never published a rule or ruling that names prepaid cards for FBAR purposes, so that treatment is a preparer's reading of the regulation, and this article keeps the two apart. Earlier years are normally fixed with late or amended reports through FinCEN's BSA E-Filing System, or the Streamlined procedures where tax returns are also affected.
The timing matters this month. The FBAR is due on 15 April with an automatic extension to 15 October, so a report for calendar year 2025 filed on or before 15 October 2026 is still on time. Anything for 2024 or earlier that left a card off is already late or incomplete.
Why do prepaid currency cards lead to a Missed FBAR?
Because nobody thinks of them as accounts. The clients we see with this problem are investment bankers, founders and investors who have filed FBARs for years, listing every current account, savings account and brokerage portfolio. The card sits in a different mental category: it arrived in the post, it lives in a phone app, it pays no interest and it produces no tax certificate. So it never reaches the preparer.
The balances, though, are not trivial. The pattern in wealthy households is to load a large sum ahead of a known foreign-currency cost and then spend it down: stage payments and refurbishment costs on a property in the eurozone, a term of school or university fees, or extended travel funded from a single top-up. A card that held the equivalent of $90,000 for six weeks in spring and almost nothing by December has a maximum value of $90,000 for FBAR purposes.
What does 31 CFR 1010.350 treat as a reportable foreign financial account?
The governing rule is 31 CFR 1010.350, which can be read at https://www.ecfr.gov/current/title-31/subtitle-B/chapter-X/part-1010/subpart-C/section-1010.350. Paragraph (a) requires each United States person with a financial interest in, or signature or other authority over, a bank, securities or other financial account in a foreign country to report that relationship for each year in which it exists. Paragraph (c) then defines the three account types.
- Bank account: a savings deposit, demand deposit, checking, or any other account maintained with a person engaged in the business of banking.
- Securities account: an account with a person engaged in the business of buying, selling, holding or trading stock or other securities.
- Other financial account: an account with a person that is in the business of accepting deposits as a financial agency; an insurance or annuity policy with a cash value; an account with a broker or dealer for futures or options in commodities; or an account with a mutual fund or similar pooled fund that issues shares to the general public with a regular net asset value determination and regular redemptions.
Three things stand out for anyone holding a prepaid product. First, the words prepaid, stored value and card do not appear anywhere in the section. Second, the definitions turn on the kind of business the other party carries on, not on the label attached to the product. Third, the only category the regulation expressly leaves open is the one marked reserved in paragraph (c)(3)(iv)(B), headed other investment fund, which has nothing to do with payment products.
FinCEN's filing instructions for Form 114 are deliberately wide. They describe a financial account as including, but not limited to, a securities, brokerage, savings, demand, checking, deposit, time deposit or other account maintained with a financial institution or other person performing the services of a financial institution. They are published at https://www.fincen.gov/system/files/shared/FBAR%20Line%20Item%20Filing%20Instructions.pdf. An institution does not need to call itself a bank for an account with it to be within scope.
What has FinCEN actually said about prepaid cards and the FBAR?
Very little, and confident statements circulate in both directions, so we went back to the primary documents.
The FBAR final rule was published in the Federal Register on 24 February 2011 (76 FR 10234), available at https://www.govinfo.gov/content/pkg/FR-2011-02-24/html/2011-4048.htm. Its preamble explains that FinCEN chose to define the account types by reference to the kinds of financial services for which a person maintains an account, and it discusses insurance policies, annuities and mutual funds at length. It does not mention prepaid cards, stored value or debit cards at all. It is sometimes said that this preamble reserved the treatment of stored-value products. On our reading of the published text it did not: the reservation it describes is for investment companies other than mutual funds or similar pooled funds.
Five months later, on 29 July 2011, FinCEN published a separate final rule on prepaid access (76 FR 45403), at https://www.govinfo.gov/content/pkg/FR-2011-07-29/html/2011-19116.htm. That rule renamed stored value as prepaid access and defined it as access to funds, or the value of funds, that have been paid in advance and can be retrieved or transferred in the future through an electronic device or vehicle such as a card, code or number. It defined closed loop prepaid access as value usable only at a defined merchant or location, such as a specific retailer. The rule regulates the businesses that issue and sell the products, as money services businesses. It does not address whether a cardholder has a reportable foreign financial account, and the text contains no reference to the FBAR section.
A third document is often confused with the other two. On 17 October 2011 FinCEN proposed to treat tangible prepaid access devices as monetary instruments for the rules on physically carrying currency across the US border. The proposal is at https://www.govinfo.gov/content/pkg/FR-2011-10-17/html/2011-26743.htm. It concerns the border declaration, which is a different report from the FBAR, and we are not aware of it having been adopted as a final rule.
The accurate summary is this. FinCEN has not published definitive guidance stating that a foreign prepaid card is, or is not, a reportable account for FBAR purposes. The question has to be answered from the general definitions in the regulation and the instructions. Anyone who says prepaid cards are always reportable, or never reportable, is describing a view and not a published rule.
How do we treat prepaid currency cards and travel money accounts in practice?
What follows is a preparer's reading. It is the position we take in the returns and reports we prepare, and we say so to clients. It is not a quotation from FinCEN.
We start from the substance of the arrangement. A modern UK-issued multi-currency card is not a plastic token carrying value. It is a payment instrument attached to an account that the issuer maintains in the customer's name, with a running balance, statements, top-ups and the ability to send the money back out. That is hard to distinguish from an account with a person performing the services of a financial institution. We treat an arrangement as reportable where the following features are present.
- The balance is held by a UK or other non-US institution in the holder's own name, following identity verification.
- The product is reloadable, so funds can be added repeatedly by bank transfer or debit card.
- A balance can be held over time in one or more currencies, rather than being spent at the point of purchase.
- Funds can be withdrawn or redeemed, whether as cash at a machine, by transfer back to a bank account or by closing the product and receiving the remaining balance.
- The issuer provides statements or a transaction history from which a maximum balance can be established.
A closed-loop gift card is not comparable. Value that can only be spent with a single retailer or a defined group of merchants, that cannot be redeemed for cash and that is not maintained as an account in a named person's name, lacks the features above. We do not report those. Between the two sits a grey band of non-reloadable travel cards bought over the counter with no real account relationship. Where the terms are unclear and the sums are meaningful, we report.
Does a card balance count towards the $10,000 aggregate test?
Yes, once the card is treated as a foreign financial account. The IRS states the test at https://www.irs.gov/businesses/small-businesses-self-employed/report-of-foreign-bank-and-financial-accounts-fbar: an FBAR is required where the aggregate value of the foreign financial accounts exceeded $10,000 at any time during the calendar year reported. Card balances are added to every other foreign account in that calculation. For most readers of this article the threshold was passed long ago, so the card does not decide whether an FBAR is due. It decides whether the FBAR that was filed is complete, and there is no per-account minimum.
How is each currency wallet valued?
This is where we see the most errors. The instructions set out a two-step method. Step one is to determine the maximum value of each account, in the currency of that account, during the calendar year. The maximum is a reasonable approximation of the greatest value in the account, and periodic statements may be relied on provided they fairly reflect it. Step two is to convert that figure into US dollars using the Treasury rate for the last day of the calendar year, or another verifiable rate, with the source stated, if no Treasury rate is available.
The Treasury Reporting Rates of Exchange are published by the Bureau of the Fiscal Service, starting from https://fiscal.treasury.gov/reports-statements/treasury-reporting-rates-exchange/. The rates are expressed as units of foreign currency per US dollar, so the foreign-currency maximum is divided by the rate. The year-end rate applies even where the peak balance occurred in March.
A multi-currency card raises a question the instructions do not answer directly, because they assume each account has one currency. Our practice, and again this is a preparer's reading, is to treat each currency wallet as its own line where the issuer maintains a separate balance for it. We take the highest balance each wallet reached during the year in its own currency and convert each at the year-end Treasury rate for that currency. A US dollar wallet held with a UK issuer is still a foreign account, because the test is where the account is maintained and not the currency it is denominated in.
One consequence follows. The wallet maxima will usually have occurred on different days, so their sum can exceed the largest total the card ever held at one moment. That is how the form works: the FBAR reports maximum values, not wealth.
A worked illustration: one card, three wallets
The figures below are invented for illustration and the exchange rates are assumptions, not Treasury's published rates. Assume year-end rates equivalent to 1.10 US dollars per euro and 1.30 US dollars per pound.
Anna is a US citizen and a managing director at a bank in London. She has filed FBARs every year listing her UK current account, savings account and brokerage account. In 2024 she bought an apartment on the Portuguese coast and opened a UK-issued multi-currency card to fund the refurbishment. During 2024 the euro wallet peaked at EUR 85,000 in May, just before the contractor's main stage payment. The US dollar wallet peaked at $22,000 in August. The sterling wallet, used for funding, peaked at GBP 6,500 in February. By 31 December all three wallets together held less than GBP 400.
On our approach the card produces three lines on the 2024 FBAR. The euro wallet is reported at $93,500, being EUR 85,000 at the assumed rate. The dollar wallet is reported at $22,000. The sterling wallet is reported at $8,450, being GBP 6,500 at the assumed rate. Together the card adds $123,950 of maximum value to a report that previously showed none of it.
Because Anna did file a 2024 FBAR, the correction is an amended report for 2024 adding the three lines, rather than a late original report. Her 2025 report, due under the automatic extension by 15 October 2026, includes the wallets from the outset. Her income tax position needs a separate look, covered below.
What about employer expense cards and company card programmes?
The regulation distinguishes a financial interest from signature or other authority. A financial interest exists, broadly, where the US person is the owner of record, or where the owner of record is a corporation in which the US person owns, directly or indirectly, more than 50 percent of the voting power or the total value of the shares. Signature or other authority is defined in paragraph (f) as the authority to control the disposition of money or other assets in a financial account by direct communication to the person with whom the account is maintained.
For an employee handed a prepaid expense card funded by a UK employer, the account belongs to the employer and the employee has no financial interest. Whether paying at a hotel amounts to direct communication with the issuer is not addressed in published guidance. In the reports we prepare, an employee whose only power is to spend at the point of sale within employer limits is not treated as holding signature authority. An employee who can log in to the programme, move funds between cards or withdraw balances is in a different position, and we report.
Business owners should look at this from the other side. A US person who owns more than half of a UK company has a financial interest in that company's foreign accounts, including the funding account behind a corporate prepaid card programme. Those accounts go on the owner's personal FBAR.
How does Form 8938 differ for a prepaid card?
Form 8938 is filed with the income tax return and has much higher thresholds. The IRS comparison table at https://www.irs.gov/businesses/comparison-of-form-8938-and-fbar-requirements shows that, for taxpayers living abroad, an unmarried filer or a married person filing separately must file where specified foreign financial assets exceeded $200,000 on the last day of the tax year or $300,000 at any time during it. For a married couple filing jointly the figures are $400,000 and $600,000.
A card account maintained with a foreign financial institution counts towards those totals like any other financial account, so we add the card wallets to Form 8938 when the form is due. Filing one form does not satisfy the other. The same table confirms that foreign currency held directly, meaning physical notes, is not reportable on either form. A drawer of euros is not an account. A euro balance on a card is.
How do you fix a Missed FBAR for earlier years?
The route depends on what else is wrong. There are three situations we see.
- An FBAR was filed for the year but left the card off. The correction is an amended FBAR through the BSA E-Filing System at https://bsaefiling.fincen.treas.gov, listing all accounts including the wallets.
- No FBAR was filed for the year, but all income was correctly reported on the tax return. The report is filed late through the same system. FinCEN's instructions require a late filer to select the reason for late filing from a drop-down list, or to choose other and give a written explanation.
- FBARs were missed and US tax returns were also wrong or not filed. The Streamlined Filing Compliance Procedures are the usual route for non-wilful cases, described at https://www.irs.gov/individuals/international-taxpayers/streamlined-filing-compliance-procedures.
For US persons living in the UK, the relevant route is normally the Streamlined Foreign Offshore Procedures, set out at https://www.irs.gov/individuals/international-taxpayers/us-taxpayers-residing-outside-the-united-states. They require returns for the most recent three years for which the due date has passed, FBARs for the most recent six years for which the FBAR due date has passed, and a certification on Form 14653 that the failures were non-wilful, which the IRS describes as conduct due to negligence, inadvertence or mistake, or a good faith misunderstanding of the law. The Streamlined Foreign Offshore Procedures carry no penalty. The 5 percent miscellaneous offshore penalty belongs to the Streamlined Domestic Offshore Procedures, which apply to US residents.
What penalties apply, and what did Bittner change?
The IRS states that filing an FBAR late or not at all is a violation that may result in civil or criminal penalties. The maximum civil amounts are adjusted for inflation and set out in the table at https://www.ecfr.gov/current/title-31/subtitle-B/chapter-X/part-1010/subpart-H/section-1010.821. In the version we checked for this article, covering penalties assessed on or after 17 January 2025, the maximum for a non-wilful violation is $16,536, and the wilful figure is $165,353, which under the statute operates alongside an alternative measure of 50 percent of the account balance where that is greater. The table is updated periodically, so check the current figures before relying on them.
In Bittner v. United States, decided in 2023, the US Supreme Court held that the non-wilful penalty applies per report and not per account. A filer who omits three wallets from one year's FBAR therefore faces one potential non-wilful violation for that year, not three. The statute also provides that no non-wilful penalty is imposed where the violation was due to reasonable cause and the balance was properly reported.
What records should you keep, and for how long?
Under 31 CFR 1010.420, records of each reportable account must be kept for five years and must show the name in which the account is maintained, the account number or other designation, the name and address of the foreign institution, the type of account and the maximum value during the reporting period. FinCEN's instructions measure the five years from 15 April of the year following the calendar year reported, or from the date filed if later.
Prepaid products make this harder than bank accounts do. Issuers close dormant cards and limit how far back the app will show transactions. We ask clients to download the full transaction export for every currency wallet at each year end and to keep the issuer's legal name, address and account reference. For a card that is about to be closed, export first and close second.
Is there a UK or US tax consequence of holding currency on the card?
On the UK side, holding the card creates no reporting requirement of its own. HMRC's Capital Gains Manual at https://www.gov.uk/hmrc-internal-manuals/capital-gains-manual/cg78300 explains that currency other than sterling is a chargeable asset, that foreign currency bank accounts could give rise to gains or losses only for periods up to 5 April 2012, and that individuals are exempt on currency acquired for personal expenditure outside the United Kingdom. For most cardholders using the product for travel and personal costs, there is nothing to report to HMRC.
The US side is where the surprise can lie. For a US taxpayer, pounds and euros are both foreign currency, and spending or converting them is a disposal. Internal Revenue Code section 988(e) provides that no gain is recognised on a disposal of foreign currency by an individual in a personal transaction by reason of exchange rate movements, unless the gain on the transaction exceeds $200. Everyday holiday spending falls comfortably within that. A single large payment may not: if Anna acquired her euros when the dollar was stronger and paid the contractor after it had weakened, the gain on that payment could exceed $200 and would be recognised in full. The definition of personal transaction also excludes transactions to the extent the related expenses are deductible business or investment expenses, so costs paid from the card for a let property need separate analysis.
What we check when a card turns up mid-engagement
- Read the issuer's terms to identify who maintains the balance, in whose name, and whether it can be redeemed.
- List every card and wallet in the household, including cards held by a spouse or by children who are US persons.
- Pull the per-currency transaction history for each open year and identify the peak balance in each wallet.
- Add the wallets to Form 8938 where that form is due, and test large foreign-currency payments against the $200 rule in section 988(e).
- Record in the file that the reportable treatment is our reading in the absence of specific FinCEN guidance.
None of this is complicated once the card is on the table. If you have loaded substantial sums onto one in any of the last six years and your FBARs did not mention it, gather the transaction histories now and correct the reports before anyone asks.
Related reading and tools
- US Tax Services & IRS Compliance
- UK Tax Services
- IRS Streamlined Filing
- UK Income Tax Calculator
- US Federal Income Tax Calculator
Every situation is different. Book a cross-border tax consultation to discuss how these rules apply to you.
Authoritative sources
IRS — Streamlined Filing Compliance Procedures
FinCEN — Report of Foreign Bank and Financial Accounts (FBAR)
GOV.UK — Tax on foreign income
IRS — Foreign Earned Income Exclusion



