Offshore Disclosure: HMRC Asset-Moves Penalty, UK to US

An Offshore disclosure problem does not disappear when balances leave UK banks for US accounts. HMRC's asset-moves penalty adds 50% to an underlying penalty only where deliberate non-compliance meets a move into a non-specified territory made to hide it, and the US is a specified territory. The historic UK liability stays.

That is the short answer, and most of what is written about the asset-moves penalty stops there. For a US-connected UK resident, or an American returning home after years in London, the real issue is broader. Transferring seven- or eight-figure balances from UK banks and investment platforms to a US bank or broker raises three questions at once. Does the move itself create a penalty? Does it shrink HMRC's ability to assess the old years? And what does it do to the US reporting record, including the FBAR and Form 8938 history of the UK accounts now closed? This guide takes each in turn, from the point of view of preparing and filing a clean disclosure, not planning a transfer.

What is HMRC's offshore asset-moves penalty?

The offshore asset-moves penalty sits in Schedule 21 to the Finance Act 2015. It is often attributed to the Finance Act 2016, which is understandable because the 2016 Act added the separate asset-based penalty and the enablers regime to the same offshore package. But the asset-moves charge itself is a 2015 provision, and it applies to relevant moves made after 26 March 2015.

HMRC's own guidance in the Compliance Handbook at CH119100 describes the penalty as 50% of the underlying penalty, charged in addition to it. It is not a penalty on the tax. It is a penalty on a penalty, and it only exists if the underlying one does.

The three conditions, all of which must be met

• A qualifying original penalty for deliberate conduct. The person must already be liable to one of the penalties listed in paragraph 2 of Schedule 21: an inaccuracy penalty under Schedule 24 FA 2007, a failure-to-notify penalty under Schedule 41 FA 2008, a failure-to-file penalty under Schedule 55 FA 2009 for deliberately withheld information, or a failure-to-correct penalty under Schedule 18 FA 2017. For the first three, the failure must be deliberate, whether or not concealed.
• A relevant offshore asset move after the "relevant time". For income tax and capital gains tax on a return, the relevant time is broadly the start of the tax year the return relates to. For failure to correct it is 16 November 2017.
• A purpose test. The main purpose, or one of the main purposes, of the move must be to prevent or delay HMRC discovering a potential loss of revenue.

Careless errors do not engage the charge at all. Neither do innocent ones. That single point removes most wealthy clients with genuinely muddled filing histories from the scope of the penalty, and it explains why the charge is rarely seen outside deliberate cases.

What counts as a "relevant offshore asset move"?

Paragraph 4 of Schedule 21 describes three kinds of move:

• the asset stops being situated or held in a specified territory and becomes situated or held in a non-specified territory;
• the person holding the asset stops being resident in a specified territory and becomes resident in a non-specified territory; or
• there is a change in the arrangements for the ownership of the asset, where the beneficial owner remains substantially connected to it, which has the same effect.

Everything turns on the words "specified territory". A move between two specified territories is outside the charge. A move from a non-specified territory is outside it too. Only a move out of a specified territory into a non-specified one is caught.

Is the United States a "specified territory"?

This is the question generalist guidance tends to get wrong, and it matters more than anything else in this article for a UK-to-US transfer.

The list of specified territories is set by Treasury regulations: the Offshore Asset Moves Penalty (Specified Territories) Regulations 2015 (SI 2015/866), amended by SI 2017/989 and by SI 2024/1195, which came into force on 12 December 2024. The explanatory material to Schedule 21 states that territories were intended to be specified once they had committed to exchanging information under the Common Reporting Standard (CRS).

The United States has never joined the CRS. It exchanges financial account information with the UK under the bilateral FATCA intergovernmental agreement instead. On a reading of the policy intent alone, you might expect the US to be missing from the list. It is not. The Schedule to SI 2015/866 lists "United States of America", with the qualification that US overseas territories and possessions are not included. The 2024 amendments added and removed other jurisdictions but did not change the US entry.

The precise conclusion, drawn from the regulations as published on legislation.gov.uk, is therefore:

• The fifty states and the District of Columbia are a specified territory for the asset-moves penalty, even though the US exchanges under the FATCA agreement rather than the CRS.
• US overseas territories and possessions are excluded from that entry, so they are non-specified unless listed in their own right.
• The United Kingdom does not appear in the Schedule. The regime is built around assets moving between offshore territories, and HMRC's published handbook does not address a transfer that starts in the UK. The practical consequence is the same either way for a transfer to a US account: the destination is a specified territory, so on the face of the regulations the move does not end in a non-specified territory.

That does not make every transfer safe, and it should not be read as a general clearance. The analysis changes if the money moves onward from the US to a non-specified jurisdiction, if it is routed through a US possession, if the holder changes residence to a non-specified territory, or if the ownership arrangements around the asset change. It also has no bearing on the underlying UK liability, which remains fully assessable. Each case should be confirmed against the current version of the Schedule at the date of each transfer.

The main-purpose test: ordinary reasons are not the target

Even where a move does run from a specified to a non-specified territory, the penalty applies only if hiding a loss of revenue was the main purpose, or one of the main purposes. Moving money to buy a home, fund a relocation, meet school fees, consolidate custody at the bank where you now live, or follow a new employer is not what the legislation is aimed at.

The difficulty is evidential, not conceptual. HMRC sees a pattern of transfers years later, often alongside non-compliance it regards as deliberate. The taxpayer has to show why each transfer happened. That is why contemporaneous records matter so much:

• completion statements, purchase contracts and mortgage offers for a property purchase;
• employment contracts, visas, relocation correspondence and school admission letters for a move;
• custody or platform closure letters and broker account-opening records for a consolidation;
• a short written note, prepared at the time or reconstructed carefully from records, linking each significant transfer to its commercial or personal reason.

In a disclosure, that file does two jobs. It answers the asset-moves question before HMRC asks it, and it supports the behaviour classification of the underlying non-compliance, which drives the size of every penalty in the case.

How big can the combined penalty get?

The asset-moves charge is the last layer of a stack. For income tax and capital gains tax on offshore matters, HMRC's factsheet CC/FS17 sets out the layers:

• The underlying offshore penalty. Offshore inaccuracy, failure-to-notify and failure-to-file penalties are scaled by territory category. Category 1 territories carry a maximum of 100% of the potential lost revenue, Category 2 up to 150%, and Category 3 up to 200%.
• Failure to correct. For offshore non-compliance relating to periods before 6 April 2016 that was not corrected by 30 September 2018, the failure-to-correct penalty starts at 200% of the tax and cannot generally be reduced below 100%.
• The asset-based penalty. Under Schedule 22 FA 2016, deliberate offshore cases with more than £25,000 of potential lost revenue in a tax year can attract a further penalty based on the lower of 10% of the value of the relevant asset and ten times the offshore tax at stake.
• The asset-moves penalty. 50% of the underlying penalty, on top.

Worked illustration, using round numbers only: if deliberate non-compliance produced a final underlying penalty of £150,000, and a relevant offshore asset move met the purpose test, the asset-moves penalty would be a further £75,000. Reduce the underlying penalty through a full, unprompted disclosure and the asset-moves element falls with it, because it is calculated as a straight half of whatever the underlying penalty turns out to be. HMRC's handbook confirms that where the underlying penalty changes, the asset-moves penalty must be adjusted to match.

Does moving money to the US end UK exposure?

No. A transfer changes where the money sits. It does not change what happened in the years before it moved, and HMRC's assessing powers follow the taxpayer, not the account.

Which time limit applies?

The answer depends on whether the lost tax involves an offshore matter, and on behaviour. Undeclared interest and gains on UK bank and platform accounts held by a UK resident are usually a domestic matter. Income from US accounts, US-listed securities or other non-UK sources is an offshore matter.

Behaviour	Domestic (UK accounts)	Offshore matter (e.g. US accounts, US income)
Reasonable care taken	4 years	12 years, for 2015-16 onwards (section 36A TMA 1970)
Careless	6 years	12 years, for 2013-14 onwards
Deliberate	20 years	20 years
Failure to notify chargeability	20 years	20 years

The 12-year offshore window was introduced by the Finance Act 2019. Its effect for a US-connected UK resident is that income earned inside US accounts after the transfer, if not reported on a UK return, falls under the longer offshore clock. Moving money to the US does not shorten HMRC's reach. In practical terms it lengthens it for anything that goes unreported afterwards.

HMRC can still see the money

The FATCA agreement is reciprocal, if unevenly so. US financial institutions report certain accounts held by UK residents, and that data reaches HMRC. The flow is narrower than CRS reporting from other countries, but it is not nothing. Meanwhile, the UK accounts that were closed were already visible to HMRC domestically through bank and platform reporting. A large sterling outflow shortly before or after an HMRC letter is exactly the sort of pattern a compliance officer will ask about.

Move scenarios: likely treatment, stated cautiously

The table below is a starting point for preparing a disclosure, not a conclusion on any individual case. Each outcome depends on the facts, the documents and the current specified-territory list at the date of the transfer.

Scenario	Asset-moves penalty risk	What the disclosure should show
Relocation: UK resident moves to the US for work and transfers balances to a US bank	Low. The destination is a specified territory and the purpose is commercial and personal.	Employment and visa records, the date of the move, UK residence status for the split year, and the old UK liabilities disclosed in full.
Property purchase: funds sent to a US closing or escrow account for a home	Low. A specified-territory destination with a clear non-tax purpose.	Purchase contract and closing statement; source of the funds; any UK gains realised to raise them.
Consolidating at a US broker while still UK resident	Low on territory grounds, but the purpose can be questioned if it coincides with unfiled UK years.	The reason for consolidation, and UK reporting of disposals made to fund it and of the income the US account now produces.
Moving money after receiving an HMRC letter	Heightened scrutiny of purpose, even to a specified territory; any disclosure is likely to be treated as prompted.	A full, prompt response through the correct channel, with the transfer explained and documented rather than left for HMRC to find.
Onward transfer from the US to a non-specified jurisdiction or a US possession	Materially higher. This is the fact pattern the regime targets if deliberate non-compliance and a concealment purpose are present.	Specialist review before any disclosure is filed; a complete account of every leg of the transfer.

The UK disclosure route: Worldwide Disclosure Facility

Where the unreported liability relates wholly or partly to an offshore issue, the usual route is the Worldwide Disclosure Facility. The process runs through HMRC's Digital Disclosure Service:

1. Notify. Register the intention to disclose. HMRC issues a disclosure reference and a payment reference.
2. Prepare. You then have 90 days to complete the disclosure. Complex cases can ask for more time.
3. Calculate. Rebuild income and gains for each year, compute tax, late-payment interest and penalties, and state your own assessment of behaviour: reasonable care, careless or deliberate.
4. Disclose and pay. The disclosure includes the maximum value of offshore assets held over the previous five years and the main jurisdictions involved. The two points where a UK-to-US transfer history must be explained are these value figures and the behaviour classification.

If the non-compliance is purely domestic, for example unreported UK bank interest with no offshore element, the Digital Disclosure Service still applies, but the offshore penalty uplifts and the asset-moves penalty are generally not in point. Deciding whether an offshore matter exists at all is therefore one of the first judgements in the file, and it should be made before any behaviour classification is proposed.

Why unprompted matters

Penalty reductions depend on the quality of the disclosure (telling, helping and giving access) and on timing. An unprompted disclosure, made before you have reason to believe HMRC has discovered or is about to discover the problem, attracts the widest reductions. A disclosure made after a "nudge" letter or a compliance check has opened is prompted, and the floor of the penalty range rises. Because the asset-moves penalty is half the underlying penalty, every reduction secured on the underlying charge flows straight through.

The US side: the moved money becomes US-reported

For a US citizen or green card holder, the transfer has its own consequences. The new US accounts are domestic from the IRS's point of view and fall away from foreign-account reporting. The UK accounts that were closed do not. Their history must still be right for every year they were open.

FBAR and Form 8938 for the closed UK accounts

• FBAR (FinCEN Form 114). Required for any year in which the aggregate maximum value of foreign financial accounts exceeded $10,000 at any time. A UK account closed in, say, March 2026 still belongs on the 2026 FBAR, at its maximum value before closure. The IRS guidance on the Report of Foreign Bank and Financial Accounts sets out who must file.
• Form 8938. Thresholds are higher and depend on where you live. A single filer living abroad files if foreign assets exceed $200,000 at year-end or $300,000 at any time (double for joint filers). Once you are back in the US, the thresholds drop to $50,000 at year-end or $75,000 at any time for single filers. A returning American can cross into the lower threshold in the same year the UK balances are wound down. See About Form 8938.
• Schedule B, Part III. The foreign account question must be answered correctly for each year, consistent with the FBARs.

Consolidation can create US filings of its own

Selling UK funds to move cash to a US broker is a disposal on both sides of the Atlantic. In the UK it can realise capital gains, or offshore income gains on non-reporting funds. In the US, most UK-domiciled funds and ETFs are passive foreign investment companies, and a sale typically brings Form 8621 reporting and potentially punitive default tax treatment unless an election was in place. The sterling-to-dollar conversion can also generate a US foreign-currency gain or loss. None of this is a reason not to move money. It is a reason to prepare both years' returns with the transfer in mind.

Coordinating the IRS Streamlined Foreign Offshore Procedures with the UK disclosure

Where US filings were also missed, the natural companion to a UK disclosure is the IRS Streamlined Filing programme. The Streamlined Foreign Offshore Procedures require three years of amended or delinquent returns, six years of FBARs, and a certification of non-willful conduct on Form 14653. There is no miscellaneous offshore penalty under the foreign procedure.

Eligibility depends on a non-residency test: in at least one of the three most recent years for which the return due date has passed, you had no US abode and were physically outside the US for at least 330 full days. A returning American may still qualify if a qualifying UK year sits inside that window. Wait too long after the move and the domestic procedure applies instead, with a 5% miscellaneous offshore penalty based on the highest year-end aggregate balance of foreign financial assets in the covered period. The closed UK accounts sit squarely inside that base, even though the money now sits in the US.

Issue	UK: Worldwide Disclosure Facility	US: Streamlined Foreign Offshore
Look-back	Every year HMRC can still assess: up to 20 for deliberate conduct	3 years of returns, 6 years of FBARs
Behaviour statement	Self-assessed: reasonable care, careless or deliberate	Non-willful certification (Form 14653)
Penalty	Behaviour- and territory-based; asset-moves and asset-based charges possible in deliberate cases	None under the foreign procedure
Treatment of the transfer	Must be explained if a move could be a relevant offshore asset move	Closed UK accounts reported for every year they existed
Main risk	Prompted status after an HMRC letter	Losing foreign-procedure eligibility after relocation

Why the two narratives must match

The UK behaviour classification and the US non-willful certification are written for different authorities, but they describe the same person and the same years. A UK disclosure that accepts deliberate conduct sits uncomfortably beside a US certification that the failures were non-willful. The two facts can be different: a UK filing failure and a US reporting failure can have different causes. But the explanation has to be consistent and documented. The transfer history, and the reason for each move, belongs in both files. Our FBAR penalty calculator helps frame the US exposure before the choice of route is made.

A preparation checklist for a UK-to-US transfer history

1. List every UK bank, platform and investment account open during the look-back, with opening and closing dates and maximum balances.
2. Map every significant transfer to the US by date, amount, receiving institution and destination jurisdiction.
3. Attach the commercial or personal reason and the supporting document to each transfer.
4. Identify any onward transfer beyond the US, and any leg through a US possession.
5. Establish UK residence for each year, including any split year on relocation.
6. Decide whether the UK non-compliance involves an offshore matter and propose a behaviour classification with reasons.
7. Reconcile FBARs, Forms 8938, Schedule B and any Forms 8621 for the same years.
8. Test US streamlined eligibility against the 330-day non-residency window before the window closes.
9. Sequence the filings so the UK and US submissions go in on a coordinated timetable.

How Jungle Tax prepares these cases

Jungle Tax prepares UK disclosures and US catch-up filings side by side for internationally mobile clients with substantial balances. We reconstruct the account and transfer history once, then use it to support both the HMRC disclosure and the IRS submission, so the numbers, dates and explanations match. Our US-UK tax accountants and our high net worth team handle the calculations, forms and correspondence. We do not advise on where or how to move assets. Our role is to report what has already happened accurately and completely. More background is available in our cross-border tax guides.

If balances have already moved from the UK to the US and earlier years are not right on either side, the timing of a disclosure matters more than almost anything else. To discuss your position in confidence, contact our cross-border team for a confidential consultation. We will review the transfer history, identify the correct UK and US routes, and prepare both filings to one coordinated standard.