Why a Personal Liability Notice Reaches Your Own Bank Account
A personal liability notice is the HMRC document that takes a penalty, or a National Insurance debt, owed by a UK company and makes one of its officers pay it personally. For most directors, limited liability is the reason they incorporated in the first place. This notice is one of the few routes by which HMRC can walk straight through the corporate veil, and it does so without needing a court order first.
For an American running or owning a British company, the consequences arrive twice. In Britain, you face a personal debt, possible publication of your name and, in serious cases, bankruptcy proceedings. In America, the same payment buys you nothing: no deduction, no foreign tax credit, and often a set of US reporting failures that the HMRC investigation has just exposed. This guide from TaxYork is written for US citizens and green card holders who sit on the board of a UK company, whether that is a two-person consultancy, a family investment vehicle or the UK subsidiary of a US group.
What a Personal Liability Notice Actually Is
There is no single statute behind the phrase. Instead, HMRC uses the label for several separate powers, and the first job on receiving a personal liability notice is to work out which one you have been served under. The power determines what HMRC must prove, how much it can claim and how you appeal.
The most common version for owner-managed companies is the penalty notice under paragraph 19 of Schedule 24 to the Finance Act 2007. Where a company is liable to an inaccuracy penalty for a deliberate error in a return, and the inaccuracy was attributable to an officer, HMRC may serve written notice requiring that officer to pay a specified portion of the penalty, up to 100%. Paragraph 19 also caps HMRC's total recovery at 100% of the penalty, so the company and its officers cannot be charged twice over for the same pound.
A parallel power sits in paragraph 22 of Schedule 41 to the Finance Act 2008. It works in the same way for deliberate failures to notify chargeability and certain deliberate VAT and excise wrongdoing. Under both provisions, the officer must pay within 30 days of the notice.
The third version is older and wider. Section 121C of the Social Security Administration Act 1992 lets HMRC serve a personal liability notice on any "culpable officer" where a company has failed to pay National Insurance contributions and that failure appears attributable to fraud or neglect. Crucially, this version reaches the contributions themselves, not merely a penalty, and neglect is enough.
Who Counts as an Officer for a Personal Liability Notice
The definition is broader than many American executives expect. Under paragraph 19, an officer of a company other than an LLP includes a director, a shadow director within the Companies Act meaning, a manager and a secretary. For an LLP, it means a member. Consequently, you do not need to be on the Companies House register to receive a personal liability notice; a US parent's executive who in practice directs the UK board can qualify as a shadow director.
HMRC's National Insurance guidance takes a similarly wide view. Its manual page on who can be issued with a PLN explains how the term "officer" applies under section 121C. Moreover, the officer must have held that role at the time of the fraud or neglect, not merely when the notice is issued. Therefore, resigning from the board once an enquiry opens does not remove the exposure to a personal liability notice for earlier periods.
The American Director Profile HMRC Sees Most Often
In our experience, three types of US person end up facing this risk. The first is the founder of a UK owner-managed company who also runs personal spending through it. The second is a US group executive appointed as a director of the UK subsidiary for governance reasons, who signs accounts without controlling the payroll. The third is the investor-director of a struggling start-up, where PAYE and National Insurance are quietly deferred to keep the lights on. Each profile carries a different risk, and each needs a different defence.
When HMRC Issues a Personal Liability Notice for a Penalty
HMRC does not issue a penalty notice every time a company makes a deliberate error. According to its factsheet CC/FS7a on penalties for inaccuracies, an officer may have to pay some or all of a company's deliberate-inaccuracy penalty where the penalty results from that officer's actions and either the officer gained, or tried to gain, personally from the inaccuracy, or the company is insolvent or HMRC believes it is about to become so. The same factsheet adds that if the company pays the penalty, individual officers will not be asked to pay.
That last sentence is the most practical line in the whole regime. In short, a personal liability notice on a penalty is a collection tool aimed at two situations: the director who pocketed the benefit and the company that cannot pay. Accordingly, a solvent company that settles its own penalty promptly usually keeps the debt off its directors and no personal liability notice follows.
How Large the Underlying Penalty Can Be
Since paragraph 19 applies only to deliberate behaviour, the penalty being transferred is always in the upper bands. CC/FS7a sets a range of 20% to 70% of the potential lost revenue for a deliberate inaccuracy disclosed unprompted, and 35% to 70% where the disclosure is prompted. For a deliberate and concealed inaccuracy, the ranges are 30% to 100% unprompted and 50% to 100% prompted. The United States is a category 1 territory for offshore purposes, so US-linked errors are not uplifted by the offshore multipliers. Nevertheless, a prompted, concealed error can still cost the full tax again.
What HMRC Has to Prove
The burden sits with HMRC. It must first establish that the company's inaccuracy was deliberate, which tribunals have consistently treated as requiring an intention to mislead HMRC. It must then show that the inaccuracy was attributable to the particular officer. In practice, that second limb turns on evidence of who prepared, reviewed and approved the figures, who benefited, and what the director knew. As a result, the documentary record from the period, not the director's recollection years later, usually decides whether a personal liability notice stands.
When HMRC Issues a Personal Liability Notice for National Insurance
The section 121C route works differently, and it catches directors who never intended to mislead anyone. HMRC's manual page on what HMRC has to prove to issue a PLN lists two conditions: the company has failed to pay contributions on time, and in HMRC's opinion that failure is attributable to the fraud or neglect of one or more officers. The contributions covered include primary and secondary Class 1, Class 1A and Class 1B, together with interest and penalties on them.
The neglect test is objective. According to NIM12204 on neglect, HMRC asks whether the officer departed from the standard of care of a reasonable person, relying on the Upper Tribunal's decision in O'Rorke. HMRC also says it issues notices only where it believes non-payment reflects fraud or serious neglect. Its listed warning signs include prolonged non-payment, paying directors or connected businesses while contributions went unpaid, paying other creditors ahead of HMRC, phoenix arrangements and using unpaid PAYE as working capital.
How the Sum Is Shared Between Directors
Section 121C contains an apportionment rule that matters on any board with several members. Where only one culpable officer exists, the notice can demand the whole specified amount. Where there are several, each notice covers the proportion that the officer's culpability bears to that of all culpable officers together, judged by both the gravity of the neglect and its consequences. Furthermore, interest runs from the date the notice is issued, and any later payment by the company reduces every officer's liability, with a repayment to anyone who has overpaid. HMRC's debt manual at DMBM570160 confirms that a specialist team raises these charges only after an enquiry concludes on the balance of probabilities.
The American Parallel: The Trust Fund Recovery Penalty
US executives often recognise the National Insurance version immediately, because America has an equivalent. The IRS Trust Fund Recovery Penalty under section 6672 makes a "responsible person" who wilfully fails to pay over withheld payroll taxes personally liable for 100% of them. The two regimes differ on one important point, however. The US test requires wilfulness, whereas a personal liability notice under section 121C needs only neglect. Consequently, an American director who has always relied on the US standard can underestimate the British one.
The 2026 Change: Your Name on the Published List
Until now, HMRC's publication regime has named companies, not the directors behind them. That is changing. HMRC's L-Day 2026 explanatory note on publishing deliberate defaulters describes a new section 94A of the Finance Act 2009. It would let HMRC publish details of a company officer who has received a personal liability notice under paragraph 19 or paragraph 22, where the company's own details have been published and the officer's personal liability exceeds £25,000, aggregated across periods.
The draft also sets timing rules. HMRC could not publish before the later of the company penalty and the notice becoming final, would have one year from that date to start, and could keep the details online for one year. Before publishing anything about a personal liability notice, HMRC must tell the officer and give a reasonable opportunity to make representations, which a senior official considers. Importantly, the note says the change applies where the conduct giving rise to the penalty occurs on or after the day the Bill is passed. Historic conduct therefore sits outside it, although the existing publication of deliberate tax defaulters continues to name companies and, in offshore cases, certain individuals who control them.
For an American, publication is not merely embarrassing. A US citizen named on a UK government list may have to disclose it in a regulatory filing, a professional licence renewal or a due diligence questionnaire from a US bank. We cover the wider publication regime in our guide to HMRC's deliberate defaulters list for US persons, so here we focus on the officer-level exposure.
Appealing a Personal Liability Notice
Every route carries a right of appeal, and the deadlines are short. Under paragraph 19, the notice is treated for appeal purposes as if it were a penalty assessment, so you have 30 days to appeal in writing to HMRC, after which you may ask for an independent review or go to the First-tier Tribunal. Under section 121C, appeals are governed by section 121D, and again the practical window is 30 days. In both cases, the payment deadline on a personal liability notice runs alongside the appeal deadline, so you should ask HMRC in writing to postpone collection of the disputed amount while the appeal proceeds.
The grounds fall into three groups. First, you can attack the company's underlying liability: if the inaccuracy was careless rather than deliberate, paragraph 19 cannot apply at all. Second, you can deny attribution: the error was made by someone else, you had no knowledge of it, or you lacked the control HMRC assumes. Third, you can challenge the amount, either the penalty percentage, the reductions for disclosure, or the apportionment between officers under section 121C. Tribunals have set notices aside where HMRC failed to prove deliberate behaviour, and they have upheld them where a director controlled the finances and benefited. Therefore, evidence gathered early tends to decide whether a personal liability notice survives appeal.
A Four-Question Test Before You Reply
When a client receives a personal liability notice, we work through the same sequence before writing a word to HMRC. We ask first which power HMRC has used, because a penalty notice and a National Insurance notice have different tests and different maximums. We ask second whether the company's own behaviour can be reclassified, since a careless finding kills a paragraph 19 notice outright. Third, we ask whether the company can still pay, because CC/FS7a indicates that officers will not be asked to pay a penalty the company settles, and that choice also changes the US and UK tax treatment, as the case study below shows. Finally, we ask what the investigation has revealed about the director's own returns on both sides of the Atlantic. That fourth question is where most of the real money sits.
What a Personal Liability Notice Means on Your US Return
The American side of the problem is simple to state and expensive in practice. Paying a personal liability notice gives a US taxpayer no tax relief whatsoever, and the investigation behind it frequently uncovers missed US filings.
No Deduction for the Payment
Section 162(f) of the Internal Revenue Code denies any deduction for amounts paid to a government in relation to the violation of any law. The Treasury regulations at 26 CFR 1.162-21 define government to include the government of a foreign country. Although the regulations allow a deduction for otherwise deductible taxes and related interest, penalties on those taxes remain non-deductible. Therefore, a UK penalty passed to you personally is a pure after-tax cost.
No Foreign Tax Credit Either
The foreign tax credit fails for two separate reasons. Under 26 CFR 1.901-2, a penalty, fine, interest or similar obligation is not a tax, so the penalty element of any notice is never creditable. The National Insurance version fails as well. IRS Publication 514 states that no deduction or credit is allowed for social security taxes paid to a country with which the United States has a social security agreement, and the US-UK totalization agreement covers UK National Insurance. Moreover, a notice for unpaid company contributions transfers the company's liability, not your own income tax. As a result, even the "tax" portion of a section 121C notice cannot reduce your US bill.
When the Company Pays on Your Behalf
Some directors ask the company to settle the notice after it has been served. That creates a new problem. Once the law has placed the liability on you personally, a company payment of your debt is, in our view, a benefit to you, taxable as earnings or as a distribution in Britain. In America, the long-standing principle from Old Colony Trust Co. v Commissioner treats an employer's payment of an employee's obligation as income. Consequently, the cheapest outcome is usually for a solvent company to pay its own penalty before HMRC chooses to serve a personal liability notice on the officer at all.
The Reporting Failures the Investigation Exposes
A deliberate-inaccuracy enquiry into a company rarely stays within the company. If personal spending was run through the business, HMRC will tax it as the director's income, and that income was almost certainly missing from the US return too. In addition, the director of a UK company with signature authority over its bank accounts usually has an FBAR duty, as FinCEN's foreign bank account reporting guidance explains. An American who owns 10% or more of the company normally needs Form 5471, whose penalty starts at $10,000 per form per year. Those obligations are the real exposure, and they are why we treat every personal liability notice as a trigger for a full review of missed FBAR and missed US tax return filings through our FBAR and FATCA compliance service.
There is one further tension. A finding of deliberate behaviour in Britain makes a certification of non-wilful conduct for US purposes far harder to sustain, because both relate to the same facts. Therefore, the choice of US correction route, whether that is the IRS Streamlined Filing procedure or another path, needs to be made with the HMRC file in front of you, not before you have seen it.
Case Study: The Director Who Paid Twice
The following illustrative case uses realistic figures to show how a single personal liability notice plays out on both returns. The names and details are invented.
Nathan is a US citizen who has lived in London for nine years and owns 100% of a data consultancy, which we will call Cole Analytics Ltd. Over three accounting periods ending 31 March 2026, the company booked £360,000 of Nathan's personal costs, including a cottage refurbishment and family travel, as business expenses supported by misleading invoices. HMRC opened an enquiry, and Nathan's adviser made a full but prompted disclosure.
On the UK side, the extra Corporation Tax at 25% came to £90,000 of potential lost revenue. HMRC classed the behaviour as deliberate and concealed, giving a prompted range of 50% to 100%. After reductions for telling, helping and giving access, the penalty settled at 60%, or £54,000. Because Nathan personally benefited, HMRC issued a personal liability notice under paragraph 19 for 100% of that penalty.
In addition, HMRC taxed the £360,000 as distributions to Nathan. At the 2026-27 additional rate of 39.35% shown on GOV.UK's tax on dividends page, and ignoring the allowance and interest for simplicity, his personal income tax came to roughly £141,660, plus his own penalty.
On the US side, Nathan's returns had omitted the same £360,000. At an assumed $1.30 to the pound, that is $468,000 of constructive dividends. The qualified dividend rate of 20% produced $93,600, which the UK dividend tax of about $184,158 fully covered through the foreign tax credit. However, the 3.8% net investment income tax added $17,784 that, on the IRS's view, no foreign tax credit can offset. He also had three years of missing Form 5471 filings and unfiled FBARs for the company accounts he controlled.
The personal liability notice itself cost Nathan £54,000, roughly $70,200, with no US deduction and no credit. Worse, he paid it from personal funds he had first drawn as dividends. To net £54,000 after 39.35% UK tax, he needed about £89,036 of gross dividends, so the true cost was around £35,000 more than the penalty itself.
What would have changed the outcome? Had the company paid its own £54,000 penalty while still solvent, CC/FS7a indicates HMRC would not have asked Nathan to pay, and the extra £35,000 of dividend tax would never have arisen. Under the draft section 94A, a notice of this size for conduct after Royal Assent could also have put his name on a published list, which company-level payment would likely have avoided. Finally, filing the missing Forms 5471 and FBARs as part of a coordinated disclosure, rather than waiting for the IRS to discover them, kept the information-return penalties within a defensible range.
Practical Steps for American Directors of UK Companies
Prevention is far cheaper than appealing a personal liability notice. First, keep a clear written record of who prepares and approves each company return, because attribution is the battleground of every paragraph 19 case. Second, never let PAYE and National Insurance arrears build up as informal finance; HMRC's own guidance lists that exact pattern as serious neglect. Third, keep personal and company spending completely separate, and clear any director's loan account balances properly rather than through year-end journals.
If an enquiry has already opened, the order of events matters. Make sure the company, not you, is in a position to settle its own penalty, and take advice before resigning, because resignation does not end exposure for past periods. Meanwhile, check your own Self Assessment return, including the close company director boxes on SA102, and your US return, FBAR and Form 5471 history for the same years. Where the enquiry is a Code of Practice 9 case, our guide to COP9 disclosures for US filers explains how the US side should be sequenced.
How TaxYork Can Help
TaxYork prepares and files US and UK returns for American directors, founders and executives of British companies. When a client faces a personal liability notice, we reconstruct the company and personal position for the affected periods, prepare the corrected UK returns, and identify every US filing the investigation touches, from missed US tax returns to Form 5471 and FBAR. We then coordinate the corrections so that the figures given to HMRC and the IRS tell the same story. For the personal US side, our US tax returns for expats service covers the catch-up years in full.
Conclusion
A personal liability notice is HMRC's way of reminding company directors that limited liability is not unlimited protection. For a penalty, it targets the director who benefited or the company that cannot pay. For National Insurance, it reaches any officer whose neglect let contributions go unpaid. For an American, the notice is only the visible part of the problem: the payment earns no US relief, and the facts behind it usually reveal missed US reporting that carries its own penalties. Acting early, letting a solvent company settle its own liability, and correcting both sets of returns together is almost always the cheapest path.
Contact Us
If you have received a personal liability notice, or HMRC has opened an enquiry into a company you direct, please book a consultation with our US-UK team. You can also email hello@taxyork.com or call 020 3488 8606. We will review the notice, the underlying company position and your US filing history, and then set out a clear plan for both countries.
Disclaimer
This article provides general information about US and UK tax rules as they stood on 4 November 2026. It is not tax, legal or financial advice, and it does not create a client relationship. The case study is illustrative, its figures are simplified, and it assumes an exchange rate of $1.30 to the pound. The section 94A publication power described here was published in draft and may change before it is enacted. Tax outcomes depend on your full circumstances, so please obtain professional advice before acting on any information in this article.