What is the difference between an FBAR penalty and a tax liability?

An FBAR penalty is a civil penalty under 31 USC 5321 of the Bank Secrecy Act for failing to report a foreign account, not an assessment of additional income tax under the Internal Revenue Code. It can apply even where the US tax return of a UK filer is fully correct. Because it is a Title 31 penalty rather than a Title 26 tax, it is assessed and collected under a separate framework from an ordinary IRS balance due.

How long does the IRS have to assess an FBAR penalty?

Under 31 USC 5321(b)(1), the IRS generally has up to six years from the date of the transaction giving rise to the violation to assess a civil FBAR penalty. For a filing failure, the Internal Revenue Manual treats that date as the original due date of the FBAR for the relevant year. The assessment becomes final when a designated IRS official stamps Form 13448, the penalty assessment certification.

How long does the IRS have to sue to collect an assessed FBAR penalty?

Under 31 USC 5321(b)(2), the government must commence a civil action within two years of the later of the assessment date or the date a related criminal judgment becomes final. The Internal Revenue Manual confirms this two-year period for bringing suit to collect an assessed FBAR penalty. If the government misses that window, it loses the ability to reduce the penalty to an enforceable court judgment through litigation.

Can the IRS put a lien on a UK home for an unpaid FBAR penalty?

Not through the ordinary Title 26 federal tax lien process, because that lien authority attaches to an unpaid tax and an FBAR penalty is a Title 31 penalty, not a tax. Reaching UK real property would instead require the government to obtain a US court judgment and then seek recognition or enforcement of that judgment through the civil courts of the UK, a separate and materially higher hurdle.

Does Collection Due Process protect someone facing an assessed FBAR penalty?

No. Collection Due Process hearings under sections 6320 and 6330 of the Internal Revenue Code apply to an unpaid tax, and the US Tax Court has held that an FBAR penalty, being a Title 31 civil penalty rather than a tax, does not carry those hearing rights. A filer cannot use a Collection Due Process request to pause or negotiate FBAR penalty collection the way they might for an income tax lien or levy.

Can a streamlined submission remove an FBAR penalty already assessed?

No. The Streamlined Filing Compliance Procedures are designed for prospective, non-willful catch-up filing before an examination has assessed a penalty; they do not abate, vacate, or reopen a penalty that has already been assessed. Once Form 13448 is stamped, the options run through payment, an instalment arrangement, or a direct legal challenge, not a fresh streamlined submission covering the same account-years.

Missed FBAR Penalty Collection From the UK

Missed FBAR penalty collection is the process the IRS follows once a Report of Foreign Bank and Financial Accounts penalty has actually been assessed against a filer, and for someone living in the UK that process looks materially different from how the IRS collects an ordinary US tax debt. An FBAR penalty arises under the Bank Secrecy Act, codified at 31 USC 5321, not under the Internal Revenue Code, so the assessment, the collection tools, and the deadlines that follow are governed by Title 31 rather than by the familiar Title 26 machinery of federal tax liens, levies, and Collection Due Process hearings. For a high-net-worth American who has moved to the UK and discovers that a foreign account was never reported, understanding this distinction matters as much as understanding the penalty amount itself, because it changes what the IRS can actually do to enforce the debt once it is assessed, and by when.

How missed FBAR penalty collection differs from IRS tax collection

The Report of Foreign Bank and Financial Accounts, commonly called the FBAR, is filed under the Bank Secrecy Act rather than under the tax code. FinCEN owns the FBAR filing requirement, and the IRS examines and enforces FBAR compliance under delegated authority from FinCEN, which means the resulting penalty under 31 USC 5321 is a Title 31 civil penalty, not a Title 26 tax. This distinction sits at the centre of missed FBAR penalty collection, because Congress built an entirely separate assessment and collection framework for Title 31 penalties, one that does not automatically borrow the lien, levy, and Collection Due Process provisions that apply to unpaid income tax. A company director or investment professional with US filing obligations who has an assessed FBAR penalty should not assume the IRS will proceed the way it would for a balance due on a Form 1040.

An FBAR penalty is a Title 31 liability, not a Title 26 tax

An FBAR penalty is a civil monetary penalty for failing to report a foreign financial account, not an assessment of additional tax on unreported income. Because it does not depend on an underlying tax deficiency, an FBAR penalty can be assessed even where the US tax return of a UK filer is entirely correct and no additional tax is owed. The IRS states on IRS.gov that civil FBAR penalty maximums under Title 31 are adjusted annually for inflation, and the amount ultimately assessed depends on facts such as whether the failure to file was treated as non-willful or willful and how many account-years are involved. What matters for collection purposes is that this is a penalty created by, and collected under, Title 31, not the Internal Revenue Code, and that single fact is what reshapes everything that follows.

Why the ordinary tax lien and levy machinery does not simply apply

Because an FBAR penalty is not a tax imposed under the Internal Revenue Code, it does not automatically carry the statutory lien and levy authority that Title 26 gives the IRS for unpaid income tax. The federal tax lien under section 6321 and the levy authority under section 6331 are Title 26 tools built around an unpaid tax, and Title 31 does not cross-reference those provisions for FBAR penalties. In practice, this means the IRS cannot simply file a notice of federal tax lien or issue a levy against a bank account to collect an assessed FBAR penalty in the way it would for a Form 1040 balance due. Instead, Title 31 gives the government a narrower and more procedural remedy: a civil action in federal district court to recover the assessed penalty, sometimes described as a suit to reduce the penalty to judgment. Only once that judgment exists does the government gain access to the broader collection remedies that attach to any federal court judgment.

Does Collection Due Process apply to an assessed FBAR penalty?

No. The Collection Due Process protections in sections 6320 and 6330 of the Internal Revenue Code exist to give a taxpayer a hearing before the IRS files a lien notice or issues a levy for an unpaid tax, and by their own terms they apply to a tax. Because an FBAR penalty is not imposed under the Internal Revenue Code, it does not meet that threshold, and the US Tax Court has held that Collection Due Process rights do not extend to an assessed FBAR penalty. There is no statutory, regulatory, or judicial authority that imports sections 6320 and 6330 into Title 31 penalty collection. For a filer in the UK, this is one of the most consequential gaps between FBAR penalty collection and ordinary IRS tax collection: the administrative hearing route that lets many taxpayers negotiate, propose an instalment arrangement, or challenge a lien before it bites simply is not available for an FBAR penalty in the same way.

The six-year period to assess an FBAR penalty

31 USC 5321(b)(1) gives the Secretary of the Treasury up to six years from the date of the transaction giving rise to the violation to assess a civil FBAR penalty. For a filing violation, the Internal Revenue Manual treats the date of the transaction as the due date of the FBAR for that year, so the six-year clock runs from when the FBAR should have been filed. The assessment itself becomes final, per Internal Revenue Manual guidance, on the date the designated official of the IRS stamps the penalty assessment certification, Form 13448. Once that stamp is applied, the penalty is assessed, the six-year assessment clock is no longer relevant, and a different, much shorter clock starts running for the ability of the government to sue to collect it.

The two-year window to sue and collect an assessed penalty

Under 31 USC 5321(b)(2), the government must commence a civil action to recover an assessed FBAR penalty within two years of the later of the assessment date or the date any related criminal judgment becomes final. The Internal Revenue Manual confirms this same two-year period at IRM 4.26.17, describing it as the statute of limitations on bringing suit to collect the assessed penalty. This is the deadline that actually matters for missed FBAR penalty collection in most cases: if the government does not file suit in a US district court within that window, it loses the ability to convert the assessed penalty into a court judgment, which is the gateway to the stronger collection remedies. Separately, Internal Revenue Manual guidance also indicates that there is no independent statute of limitations barring the IRS from continuing to pursue voluntary payment of an assessed penalty outside that two-year suit window, so filers should not assume that simply waiting extinguishes the underlying debt.

What a suit to reduce the FBAR penalty to judgment involves

Where the IRS refers an unpaid FBAR penalty for litigation, the matter proceeds as an ordinary federal civil action brought on behalf of the government, asking the district court to enter judgment for the assessed amount plus any applicable interest and additions. This is fundamentally different from the summary administrative remedies the IRS uses to collect income tax. A lien or levy for unpaid tax can be initiated by IRS collection personnel without first going to court; recovering an FBAR penalty ordinarily requires the government to prove its case, or obtain a default or consent judgment, in litigation. For a UK resident, this suit is typically filed in a US district court with jurisdiction over the filer, and it is at this stage, not at assessment, that many practical defences to the size or validity of the penalty are raised, including challenges to wilfulness determinations.

Once judgment is obtained: how collection changes

A judgment obtained through a successful suit to reduce the FBAR penalty converts what was a Title 31 administrative assessment into an ordinary federal civil judgment. At that point, the collection tools available to the government broaden considerably, because enforcing a federal judgment is governed by generally applicable federal judgment enforcement law rather than by the narrower Title 31 penalty framework. Post-judgment remedies can include writs of execution, garnishment, and other judgment-enforcement tools reaching US assets and US-source income of the debtor, including income paid by a company that employs the filer in the United States. Where all of the assets and income of the filer are outside the United States, however, the judgment itself does not automatically reach across the Atlantic, and the practical options of the government for enforcing it against UK-situated property become considerably narrower than its options against US-situated property.

Illustrative scenario: an assessed penalty against a UK-based executive

This is an illustrative scenario. Consider a US citizen working as a senior executive at a London-based investment company who held a UK savings account and an investment account that were never reported on an FBAR for several years. The IRS examines the international information returns of the filer, determines the failures were non-willful, and assesses a civil FBAR penalty. The assessment is finalised when the designated IRS official stamps Form 13448. From that date, the government has two years to file a civil action if the penalty is not paid or resolved. If the filer does not pay and the government does not pursue suit within that two-year window, the assessed liability remains outstanding, but the ability to convert it into an enforceable US court judgment lapses. If the government does sue and obtains judgment within time, it can then pursue the US-situated assets of the filer far more readily than the UK accounts that gave rise to the penalty in the first place.

What UK-situated assets are realistically reachable?

Once the government holds a US judgment, reaching assets actually located in the UK is not automatic. A US federal court judgment is not self-executing in England and Wales or in Scotland; it does not itself create a charge over a UK bank account or UK real property. For the government to enforce against UK-situated assets, it would generally need the judgment to be recognised or enforced through the civil court processes of the UK, a materially higher bar than the administrative lien and levy tools the IRS uses domestically for tax debts. In the meantime, several categories of connection to the United States remain far more straightforwardly within IRS or Department of Justice reach.

Any US-based bank or brokerage account held by the filer, wherever the filer lives.
US-source income, including compensation paid by a US company or a US branch, even to someone resident in the UK.
Real property located in the United States.
Future US tax refunds, which the IRS can offset against other outstanding federal debts.
Assets or income connected to a US entity the filer owns or controls.

The limits of cross-border enforcement

By contrast, a UK bank account, a UK pension arrangement, UK-situated real property, and salary paid by a UK employer sit outside the ordinary reach of IRS administrative collection and outside the reach of a bare US judgment. Reaching them would depend on the willingness of the UK courts to recognise and enforce the US judgment under ordinary UK conflict-of-laws principles governing foreign judgments, a separate legal process from the US suit itself, with its own defences and its own cost. Some international tax treaties contain mutual assistance provisions that let one country help collect the tax debts of the other, but an FBAR penalty is a Bank Secrecy Act penalty rather than a tax on income, which is itself a reason to treat any assumption about treaty-based collection assistance with real caution rather than as a straightforward extension of the core income tax provisions of a treaty.

Practical options once a penalty has been assessed

A filer facing an assessed FBAR penalty while living in the UK generally has three broad paths, and they are not mutually exclusive at every stage.

Paying the assessed penalty in full to close out the liability and stop any further exposure to interest, additions, or a collection suit.
Requesting an instalment arrangement with the IRS to pay the assessed penalty over time, which can be a practical route for a high-net-worth filer whose wealth is illiquid or UK-situated rather than available as immediate cash.
Challenging the penalty, whether informally with the IRS or, where the government files suit, by contesting wilfulness, the penalty calculation, or procedural defects in the litigation itself.
Where the government does sue within the two-year window, engaging counsel promptly, since the litigation forum, not the original administrative assessment, is where most substantive arguments about the validity of the penalty are actually tested.

Why an assessed penalty cannot be undone by a later streamlined submission

A question that comes up often once a penalty has already been assessed is whether filing through the Streamlined Filing Compliance Procedures can make the problem disappear. It cannot. The streamlined procedures are designed for a filer who has not yet been examined and who is coming forward, prospectively, to catch up non-wilful past filings; they are not a mechanism for abating, vacating, or reopening a penalty that the IRS has already assessed through examination. Once Form 13448 has been stamped, the assessment exists as a matter of record, and the remedies of the filer run through payment, an instalment arrangement, or a direct challenge to the assessment or any resulting suit, not through a fresh streamlined submission covering the same years. It is also worth noting that the IRS no longer maintains a standalone published procedure specifically for FBAR-only delinquent filings, so filers should not assume that route remains available in the form it once took.

Key points for high-net-worth Americans in the UK

For a high-net-worth American living in the UK, whether as an investor, a director of a UK company, or a professional in financial services, an assessed FBAR penalty is a US federal matter governed by Title 31, not by HMRC or UK tax law, and UK residence does not shield US-situated assets or US-source income from enforcement once the government holds a judgment. The practical questions worth answering immediately after an assessment are how the penalty was calculated, whether the two-year suit window has started to run, what proportion of the wealth of the filer is US-situated versus UK-situated, and whether payment, an instalment arrangement, or a challenge is the more realistic route given the facts. Treating missed FBAR penalty collection as simply a variant of ordinary IRS tax collection is the single most common and costly misunderstanding in this area.