Introduction: The FBAR Statute of Limitations Explained
The FBAR statute of limitations gives the IRS six years to assess a penalty, and that clock runs whether or not you ever filed the form. Furthermore, it runs separately for every single year. Consequently, a wealthy American in Britain who has never filed faces six live exposures at once, each expiring on its own date.
Most guidance stops there. However, the six-year rule answers only half the question that actually matters. Your income tax years may still be wide open long after the FBAR window has shut. Therefore, treating the six-year rule as an all-clear is the most expensive mistake we see.
What the FBAR Statute of Limitations Actually Measures
The FBAR statute of limitations measures the time the government has to *assess* a civil penalty. It does not measure how many years you must file. Nor does it limit criminal exposure, which runs on its own timetable. Specifically, 31 U.S.C. § 5321(b)(1) sets the six-year assessment period.
Why the Six-Year Clock Surprises Wealthy Filers
Income tax works differently, and that difference catches people out. If you never file a tax return, the income tax statute never starts. By contrast, the FBAR statute of limitations starts on the due date regardless. Consequently, unfiled FBARs quietly expire while unfiled returns do not. That asymmetry is the whole reason the FBAR statute of limitations rewards early advice.
At TaxYork we prepare disclosures for high-net-worth Americans across Britain. Notably, the clients most at risk are rarely evasive. Instead, they are bankers, founders and investors who simply never knew an ISA or a UK brokerage account was reportable.
How the FBAR Statute of Limitations Works in Law
The Report of Foreign Bank and Financial Accounts is a Title 31 filing, not a tax return. That distinction drives everything. Accordingly, the FBAR statute of limitations sits in the Bank Secrecy Act rather than the Internal Revenue Code.
Six Years From the Due Date, Filed or Not
IRS Publication 5970 states the rule plainly. The Service has six years to assess civil FBAR penalties from the date the FBAR is due, "regardless of whether, or when, an FBAR is filed." Therefore, filing late does not restart the clock. Equally, never filing does not extend it.
The Due Dates That Set the Clock
Getting the due date right matters, because competitor guidance frequently gets it wrong. For calendar year 2015 and earlier, the FBAR was due on 30 June of the following year, with no extension available. From calendar year 2016 onwards, the deadline moved to 15 April, with an automatic extension to 15 October granted without any request.
That automatic extension does not reset the assessment period. Instead, the IRS measures the six years from the 15 April due date. Consequently, you should never plan around the October date when calculating exposure.
The Two-Year Collection Window
Assessment is not collection. Once the IRS assesses a penalty, 31 U.S.C. § 5321(b)(2) gives the government two further years to bring a civil action to recover it. Meanwhile, the Service can also collect by offsetting other federal payments. Importantly, that offset route carries no equivalent deadline.
Which Years Remain Open Under the FBAR Statute of Limitations
Abstract rules help nobody. Therefore, apply the FBAR statute of limitations to today's calendar and the picture becomes concrete.
The Open Window in August 2026
The FBAR for calendar year 2020 fell due on 15 April 2021. Six years later, that window closes on 15 April 2027. Accordingly, calendar years 2020 through 2025 are all still open for assessment as matters stand. That is six reports, and the 2026 report joins them next April.
The Years That Have Already Closed
The 2019 FBAR fell due on 15 April 2020, so its assessment window expired on 15 April 2026. Similarly, every year before that has closed. Consequently, the IRS can no longer assess a civil FBAR penalty for 2019 or earlier, absent a signed consent extending the period.
Records Violations Run on a Separate Clock
One nuance escapes almost every published guide. Where the violation concerns a failure to keep required records rather than a failure to report, Publication 5970 confirms the six years starts when you are summonsed to produce those records. Therefore, a record-keeping exposure can outlive the reporting exposure by years.
Penalties the IRS Can Assess Inside the Window
Knowing the FBAR statute of limitations matters only alongside the amounts at stake. Furthermore, those amounts changed materially after the Supreme Court intervened.
Non-Wilful Penalties After Bittner
In Bittner v. United States, decided in 2023, the Supreme Court held that the non-wilful penalty applies per annual report rather than per unreported account. That ruling transformed exposure for wealthy filers. Previously, a client with twelve UK accounts faced twelve penalties for one year. Now they face one.
The current maximum sits at $16,536 per report. That figure comes from Table 1 of 31 CFR § 1010.821, the FinCEN penalty adjustment table.
Wilful Penalties and the Fifty Per Cent Rule
Wilful exposure operates on another scale entirely. The penalty is the greater of $165,353 or 50 per cent of the account balance at the time of the violation. Consequently, a £2 million portfolio can generate a seven-figure penalty for a single year. Additionally, criminal exposure under 31 U.S.C. § 5322 carries fines to $250,000 and five years' imprisonment.
Why the 2026 Figures Are Not New Figures
Here is a detail worth checking before you trust any article. Many pages advertise "2026 FBAR penalties" as though fresh amounts applied. In fact, the operative amounts still derive from the adjustment effective 17 January 2025, and the regulation's amendment history confirms no later revision. Therefore, $16,536 and $165,353 remain correct as at August 2026.
Extending the FBAR Statute of Limitations
Examinations often outlast the FBAR statute of limitations. Consequently, the IRS may ask you to extend it, and how you respond shapes your appeal rights.
Form 15616, Not Form 872-FA
The consent form for FBAR purposes is Form 15616, Consent to Extend the Time to Assess Civil Penalties. Several widely read guides name Form 872-FA instead, which belongs to income tax examinations. Importantly, the FBAR consent is a fixed-date consent, so it expires on a stated day rather than running indefinitely.
The 365-Day Appeals Threshold
This is the rule that decides whether you get a hearing before you get a bill. To have a penalty considered by Appeals *before* assessment, at least 365 days must remain on the assessment period when the case reaches Appeals. Otherwise the IRS must assess first. Furthermore, Appeals holds full settlement authority only in the pre-assessment posture, as IRM 8.11.6 sets out.
Signing or Refusing the Consent
Refusing a consent feels instinctively protective. Nevertheless, refusal usually forces the Service to assess immediately to protect the statute, which costs you the stronger pre-assessment appeal. The IRS notifies proposed penalties on Letter 3709 and assessed penalties on Letter 3708. Accordingly, we weigh the calendar before advising either way.
The Trap That Outlives the FBAR Statute of Limitations
Now the point that matters most for wealthy clients. The FBAR statute of limitations can expire while your income tax exposure remains permanently open.
Section 6501(c)(8) Suspends Everything
Under IRC § 6501(c)(8), failing to file a required international information return suspends the assessment period. The clock does not begin until three years after you actually file the missing form. Critically, the suspension reaches the *entire* return, not merely the foreign items, unless the failure was due to reasonable cause.
That catches Form 8938, Form 5471, Form 3520 and Form 8865. Consequently, a client who never filed Form 8938 for 2016 still has an open 2016 tax year in 2026, even though the 2016 FBAR closed in April 2023.
The Six-Year Income Tax Rule
Separately, section 6501(e) extends the ordinary three-year period to six years where you omit more than $5,000 of income attributable to foreign financial assets. Additionally, fraud or a wholly unfiled return leaves the period open without limit. Therefore, three different clocks can run across one set of facts.
What This Means for Closed FBAR Years
Closed FBAR years still matter, and that surprises people. The IRS cannot penalise the missing report. However, it can still examine the income, assess tax and charge information-return penalties. Consequently, "the FBAR statute of limitations has expired" is never a complete answer.
Case Study: Ten Unfiled Years, Six Live Exposures
Consider a client we will call a London-based fund executive, a US citizen who has lived in Britain since 2014. They hold UK current accounts, a stocks and shares ISA and a UK investment portfolio, peaking at roughly $2.4 million. They filed US returns sporadically and never filed an FBAR.
Mapping the Exposure
Applying the FBAR statute of limitations, calendar years 2020 through 2025 sit inside the window. Meanwhile, 2016 through 2019 have closed for FBAR assessment. Consequently, six reports carry live penalty risk rather than ten.
On non-wilful facts, the statutory maximum reaches six multiplied by $16,536, or $99,216. On wilful facts the position transforms. Fifty per cent of a $2.4 million balance produces roughly $1.2 million for a single year. Therefore, the wilfulness question dominates everything else.
The Exposure That Did Not Close
The client never filed Form 8938 either. Accordingly, section 6501(c)(8) keeps 2016 through 2019 open for income tax, despite those FBAR years having expired. That is the finding which changes the strategy.
The Resolution
Because they qualified as non-resident and non-wilful, the client used the Streamlined Foreign Offshore Procedures. Those procedures require three years of amended returns and six years of FBARs, with no miscellaneous offshore penalty. Their unreported UK investment income averaged $38,000 annually, and foreign tax credits absorbed most of the liability.
The final cost came to roughly $9,400 of additional US tax plus $1,900 of interest. Compare that with $99,216 of non-wilful exposure, or $1.2 million on wilful facts. Ultimately, acting before the IRS made contact preserved the cheapest outcome available.
What to Do Before the Window Moves Again
The compliance landscape shifted in 2026, and one familiar route has disappeared.
The Delinquent FBAR Procedures Have Gone
The IRS withdrew the Delinquent FBAR Submission Procedures with effect from 1 July 2026, and the guidance page no longer resolves. Nevertheless, many third-party sites still recommend that route. Consequently, anyone relying on older guidance should reassess before filing anything.
Choosing the Right Route Now
Streamlined remains available for non-wilful filers who meet the non-residency test. Alternatively, a reasonable-cause filing through the BSA E-Filing System may suit a filer whose tax was always fully paid. Importantly, the choice depends on wilfulness, and that assessment should precede any submission.
The Signature Authority Extension Runs to 2027
Separately, FinCEN has again deferred the reporting deadline for individuals with signature authority over employer accounts, extending relief to 15 April 2027. Therefore, executives and finance professionals with company account authority have breathing room that most published guides omit entirely.
How TaxYork Can Help
We map the FBAR statute of limitations year by year before recommending anything. Specifically, we calculate which reports remain open, quantify the penalty range, and test whether section 6501(c)(8) has left tax years running. Furthermore, we assess wilfulness honestly, because that single question drives the entire strategy.
Our team then prepares the disclosure end to end. We handle IRS Streamlined Filing submissions, the supporting US tax returns, and the FBAR and FATCA reporting itself. Additionally, we apply treaty relief so the underlying tax lands correctly. Guidance from professional bodies such as ICAEW and HMRC informs the UK side.
Conclusion
The FBAR statute of limitations gives the IRS six years from each due date, running whether you filed or not. As at August 2026, that leaves calendar years 2020 through 2025 open, with maximum non-wilful exposure of $16,536 per report and wilful exposure of half the account balance. Meanwhile, the assessment period can be extended by consent, and Appeals rights hinge on the 365-day threshold.
Above all, remember that an expired FBAR year is not a closed year. Section 6501(c)(8) keeps income tax exposure alive indefinitely where information returns were never filed. Therefore, count the clocks properly before you conclude you are safe.
Contact Us
Speak to specialists who quantify this exposure every week. You can book a consultation with our cross-border team, or email hello@taxyork.com. Alternatively, call 020 3488 8606 to discuss your position confidentially. We will map your open years, quantify the range, and recommend the appropriate disclosure route.
Disclaimer
This article provides general information about the FBAR statute of limitations and related US reporting obligations. It does not constitute tax or legal advice for any individual or entity. Penalty exposure and wilfulness determinations depend entirely on your specific facts. Accordingly, you should obtain professional advice before acting on anything set out above. TaxYork accepts no liability for action taken solely on the basis of this article.