FBAR Filing Service UK: What We Need From You and Why

FBAR filing service UK: an introduction

An FBAR filing service UK residents use prepares and files the US report of foreign bank and financial accounts on their behalf. The report goes to FinCEN, the US Treasury bureau that collects it, not to the IRS. You need one if your non-US accounts together exceeded $10,000 at any time in the year. For an American in Britain, that usually means every year.

This article explains what the service involves, what we need from you, and how the filing is checked. Our full guide to FBAR and FATCA reporting covers the wider rules on foreign accounts and assets.

Why an FBAR filing service UK clients use saves time

The FBAR looks simple, but most of the work happens before the form. You must list every account, find its highest balance in the year and convert it to dollars. However, UK banks rarely show a maximum balance on their statements. Therefore, someone has to work through twelve months of figures for each account. In our experience, that is where people either give up or guess.

What the FBAR is

The FBAR is FinCEN Form 114, an annual report of non-US financial accounts held by US persons. The IRS explains the rules on its page about the Report of Foreign Bank and Financial Accounts. It is filed electronically through FinCEN's BSA E-Filing System, separately from your tax return. Notably, it reports balances only. It carries no tax, but missing it can carry penalties.

Which accounts go on the FBAR?

Every financial account outside the United States in which you have a financial interest or signature authority goes on the report. Once the $10,000 total is passed, each account is listed, however small. That catches far more than most people expect.

The accounts most people forget

Current accounts and savings accounts are obvious. However, an FBAR filing service UK clients rely on will also ask about cash ISAs and stocks and shares ISAs, Premium Bonds, brokerage accounts and children's accounts in your name. Similarly, some pension arrangements and insurance products with a cash value can count. The regulation that defines a reportable account is 31 CFR 1010.350. Each item needs checking against it, not against habit.

Joint accounts and spouses

A joint account is reported in full by each US owner. However, the FinCEN instructions let one spouse file for both where every reportable account of the other is jointly owned. Both spouses must then sign FinCEN Form 114a, the record of authorisation to file electronically. Otherwise, each spouse files separately and reports the full value of the joint accounts. If your spouse is not a US person, only you report.

Signature authority at work

Signature authority is the power to control an account by instructing the bank directly, even if none of the money is yours. Consequently, a finance director who can authorise payments from a UK company account may need to report it. The same applies to a US founder who signs for their own company. The rules have narrow exceptions, so we review each role before including or excluding an account.

UK pensions: a contested area

Whether a UK pension belongs on the FBAR is one of the less settled questions. A workplace defined benefit scheme is often treated differently from a personal pension or SIPP that you control. However, practice among preparers varies, and FinCEN has not published a UK-specific answer. Therefore, our cautious approach is to report pension accounts in which you hold a financial interest, unless an exception clearly applies. Reporting an account you did not strictly need to list carries no penalty. In contrast, leaving out one you should have listed can.

How is the maximum value worked out?

The maximum value is a reasonable approximation of the highest balance in the account during the calendar year. It is converted to dollars and rounded up to the next whole dollar. An FBAR filing service UK clients hire should show you how each figure was reached.

Finding the highest balance

For a current or savings account, the highest balance usually appears on a monthly statement or in the online transaction history. For an investment account, the highest month-end value is often a reasonable approach. The FBAR line item filing instructions describe the steps. Moreover, a negative balance is entered as zero. Accuracy matters more than precision to the penny, but the method should be consistent.

Converting pounds to dollars

The FinCEN instructions say to convert using the Treasury rate for the last day of the calendar year. The Bureau of the Fiscal Service publishes those Treasury Reporting Rates of Exchange. As a result, the FBAR figure may differ from the dollar balance on Form 8938 or the tax return. That is expected, because each form has its own conversion rule.

What do we need from you?

We need a list of your accounts, the statements that show each account's balances through the year, and your identifying details. With those, the FBAR can usually be prepared in one pass. The checklist below is what our FBAR filing service UK clients send.

For each account

Send the name and address of the bank or provider, the account number, and the type of account. Also send the statements or transaction history for the full calendar year. If the account was opened or closed during the year, say so. Additionally, tell us who else owns the account or can sign on it. The IRS says these records must be kept for five years from the FBAR due date.

About you

We need your full name, date of birth, Social Security number and address. If you file jointly with a spouse, we need theirs too, plus a signed Form 114a. Furthermore, tell us about any company where you can sign on the bank account. Finally, send last year's FBAR if one was filed, because it shows which accounts we should expect to see again.

If you hold 25 or more accounts

People with many accounts get a shortcut on the form itself. If you have a financial interest in 25 or more accounts, you tick a box and enter the number of accounts. You then leave out the account-by-account detail, as the FBAR line item instructions explain. Nevertheless, you must keep the full records in case FinCEN or the IRS asks for them. An FBAR filing service UK clients use should still build the complete list behind the scenes.

When is the FBAR due, and how is it filed?

The FBAR is due on 15 April after the calendar year, with an automatic extension to 15 October. No request is needed for the extension. The report is filed electronically, and the filer receives a confirmation that should be kept.

Filing through BSA E-Filing

The report is submitted through the FinCEN BSA E-Filing System. When a preparer files for you, Form 114a records your authority for them to do so. After submission, FinCEN issues a BSA identifier that proves the report was received. We send you a copy of the filed report and the confirmation for your records. FinCEN also publishes its own FBAR guidance and relief notices.

How the FBAR relates to Form 8938

Form 8938 is a separate report of specified foreign financial assets, filed with the tax return. For a single filer living abroad, it applies above $200,000 at year end or $300,000 at any time. The IRS sets out the differences in its comparison of Form 8938 and FBAR requirements. Filing one does not replace the other. Therefore, an FBAR filing service UK residents use should check both thresholds every year.

What if a filed FBAR was wrong?

A filed FBAR that contains an error should be amended. The fix is a new report marked as an amendment, filed through the same system. It must show the full corrected information, not just the change.

Amending a filed report

The FinCEN instructions explain that an amended report refers back to the original by its BSA identifier. Therefore, keep every confirmation you receive. Common reasons for amendment include a forgotten account, a balance taken from the wrong month, or the wrong exchange rate. In our experience, the forgotten account is usually a small savings account or an old ISA. An FBAR filing service UK clients use should check the prior year's list against this year's before anything is filed.

Keeping records for five years

The IRS says FBAR records must be kept for five years from the due date of the report. That includes the account name and number, the bank's name and address, the type of account and its maximum value. Similarly, keep the statements that support each figure. We store a copy of every report we file and send you the same set.

What if FBARs have been missed?

Missed FBARs should be filed, but how you file them matters. Penalties are set by statute and adjusted each year for inflation. Furthermore, there is no longer a published penalty-free route for late FBARs on their own.

Penalties in outline

FBAR penalties are set out in 31 US Code section 5321. Non-wilful and wilful violations carry different maximums, both indexed for inflation. In 2023, the Supreme Court held in Bittner v. United States that the non-wilful penalty applies per report, not per account. Even so, the amounts are significant, and the IRS decides each case on its facts.

The catch-up routes

The IRS removed its Delinquent FBAR Submission Procedures page in July 2026. Therefore, we never describe late FBARs as a penalty-free route. For non-wilful cases where tax returns are also missing or wrong, the Streamlined Foreign Offshore Procedures cover six years of FBARs alongside three years of returns. The IRS sets out the terms for US taxpayers residing outside the United States. Our guide to IRS Streamlined Filing from the UK explains the route step by step.

An illustrative example

Consider a typical case. Priya is a US citizen living in Bristol with her British husband. She holds a current account, an easy-access savings account, a cash ISA and Premium Bonds. Her husband's accounts are in his sole name. She also has signature authority over the account of a charity where she is treasurer.

Here, Priya files one FBAR listing her four accounts. Her husband files nothing, because he is not a US person. The charity account needs a separate review, since signature authority alone can make it reportable. Each maximum value is taken from her statements and converted at the year-end Treasury rate. As a result, Priya keeps a filed report, a BSA confirmation and a short note of how each figure was reached.

How US UK Tax Experts can help

We run an FBAR filing service UK clients can hand the whole job to. First, we agree the list of accounts with you, including those people usually forget. Next, we work out each maximum value from your statements and convert it at the correct rate. We then prepare the FBAR, obtain your Form 114a, file it and send you the confirmation. In addition, we check the Form 8938 thresholds and prepare that form with your tax return where needed.

Our FBAR and FATCA service covers the reports, and our US federal return service covers the Form 1040 they sit beside.

Conclusion

In summary, an FBAR filing service UK residents use turns a year of statements into one accurate report. Every non-US account counts once the $10,000 total is passed, including ISAs and accounts you can only sign on. Values are the highest balance in the year, converted at the Treasury year-end rate. Therefore, keep your statements, agree the account list early, and file by 15 October at the latest. Ultimately, a clear record each year is the best protection you can have.

Contact us

Would you like us to prepare and file your FBAR this year, or bring missed years up to date? Email us at hello@usuktaxexperts.com, or send a short description through our contact page. We reply within one working day with the list of what we need.