Dual national US UK: Transfer of Assets Abroad Charge

Dual national US UK individuals who still own a non-UK company can be taxed in Britain on that company's income even though the company has distributed nothing. The transfer of assets abroad code at Part 13, Chapter 2 of the Income Tax Act 2007 attributes the income to the individual personally, and it reports on the foreign pages of the Self Assessment return.

Why does a company that has paid you nothing appear on your UK tax return?

Most cross-border reporting problems begin with a receipt. This one does not. The transfer of assets abroad provisions — practitioners call them the ToAA code — are anti-avoidance rules that operate on attribution rather than on payment. Where a UK resident individual has transferred assets, or has been associated with a transfer, and as a result income becomes payable to a person abroad, the legislation can treat that income as the individual's own income for UK income tax purposes. No dividend needs to be declared. No distribution needs to be made. No money needs to cross a border.

For an American in London, a Briton with a US passport, or anyone else holding both nationalities, the practical trigger is almost always a company. It might be a Delaware or Wyoming LLC that was set up years ago to hold rental property or a consulting practice. It might be a US corporation that was never wound up after a move to Britain. It might be an offshore investment company holding a securities portfolio. The company is perfectly legitimate, it files where it is supposed to file, and it retains its income rather than paying it out. That retention is precisely what brings the ToAA code into play.

The result is an income tax charge on income you have not received, in a jurisdiction where the company itself is not resident, calculated on a basis that has nothing to do with what the company actually paid you. It is one of the most under-reported exposures we see in high net worth cross-border files, and it is a frequent cause of multi-year compliance catch-up once it is identified. Jungle Tax prepares returns for clients on both sides of this exact problem.

What are the three charges under the transfer of assets abroad code?

The code contains three distinct charging provisions. They are not alternatives you choose between; they apply in a defined order and to different people, and getting the right one is the first technical decision in any reconstruction.

The section 720 transferor charge

Section 720 is the main charge and the one that catches most company owners. It applies where an individual is UK resident, there has been a relevant transfer of assets, income becomes payable to a person abroad as a result, and the individual has power to enjoy that income. Where it applies, the whole of the income of the person abroad — here, the company — is treated as the individual's income for the tax year in which it arises.

Two features make section 720 uncomfortable. First, it charges the gross income of the company, not the individual's economic share of it, subject to apportionment where more than one transferor is involved. Second, the charge arises annually, year after year, for as long as the conditions are met. A company that has quietly accumulated investment income for a decade generates a decade of UK charges, not one.

The section 727 charge on a capital sum

Section 727 exists to close the obvious escape route. If the individual does not have power to enjoy the income but has received, or is entitled to receive, a capital sum that is in any way connected with the relevant transaction, the income of the person abroad is again treated as theirs. "Capital sum" is drawn widely: it includes loans and the repayment of loans as well as outright payments. A director's loan drawn from a non-UK company, repaid or not, is a classic section 727 fact pattern that owners rarely recognise as income-tax relevant at all.

The section 731 benefits charge on a non-transferor

Section 731 catches individuals who did not make the transfer but who receive a benefit from the arrangement. The charge is on the value of the benefit received, capped by reference to the relevant income of the person abroad available for matching. Following the 2025 reforms and the withdrawal of the remittance basis, section 731 reverted to applying only to non-transferors — a change that matters when you are rebuilding years that straddle 5 April 2025, because the correct charging section can differ between the years in a single catch-up filing.

What does "power to enjoy" actually mean in practice?

This is where most self-assessments go wrong. Owners read "power to enjoy" as something close to entitlement and conclude that, because the company has never paid them and its constitution gives them no fixed right to income, they are outside the charge. The statutory test is far broader than that. Power to enjoy is defined by reference to a set of alternative conditions, any one of which is sufficient. In practical terms, you will generally have power to enjoy the income where:

• the income is in fact dealt with so as to benefit you, directly or indirectly, at any point;
• the receipt or accrual of the income increases the value of assets you hold — which is true of almost any retained profit in a company whose shares you own;
• you receive, or are entitled to receive, a benefit provided out of that income or out of money available because of it;
• you are able to control the application of the income, whether or not you exercise that control; or
• you can, by any means and in any circumstances, enjoy the benefit of the income.

Read that list against a single-member LLC or a wholly owned investment company. Retained income increases the value of your shares or membership interest. You control how it is applied. You can direct a distribution whenever you choose. The condition is met several times over. The argument that "I never took anything out" is, for these purposes, close to irrelevant — indeed it is the fact pattern the code was written for.

Does the 2024 extension to closely-held companies change your position?

Yes, and it is the most important recent development for company owners. Following a Supreme Court decision that limited the reach of the code where the transfer had been made by a company rather than by an individual, Parliament legislated deeming provisions inserted into the Act by the 2024 Finance legislation. Broadly, where a closely-held company makes a relevant transfer, an individual who is a participator in that company with a qualifying interest can be deemed to be the transferor, and the section 720 or section 727 charge applied to them accordingly.

Two points deserve emphasis. First, the deeming applies to income arising to the person abroad on or after 6 April 2024 regardless of when the underlying transfer took place, so structures created long before the legislation are within scope prospectively. Second, participators are treated as involved unless it can be shown that the individual ordinarily had no direct or indirect involvement in the conduct of the company's affairs — which is an evidential burden, not a presumption in your favour. For a dual national who is the sole or dominant shareholder of a US corporation that itself holds an offshore subsidiary, this is a live and current exposure for the 2024/25 and 2025/26 returns.

How do the defences at sections 736 to 742A actually work?

The code is deliberately broad, and Parliament tempered it with exemptions. They are real, they are frequently available on genuine commercial facts, and they are also the single most common place where an adequate case collapses because nobody documented it at the time. There are, in substance, three routes.

The no tax-avoidance-purpose exemption

Income is left out of account where you satisfy HMRC that avoiding liability to taxation was not the purpose, or one of the purposes, for which the relevant transactions were effected. The test is not whether avoidance was the main purpose; one purpose among several is enough to defeat it. "Taxation" is not confined to UK income tax. The relevant transactions include associated operations, which can be numerous and can post-date the original transfer by many years, and the purpose of each has to be addressed.

The genuine commercial transactions exemption

Alternatively, income is left out of account where all the relevant transactions were genuine commercial transactions and it would not be reasonable to conclude that any of them was more than incidentally designed for avoiding liability to taxation. "Genuine commercial" carries its ordinary meaning and is tested against what the arrangement actually did, not what its documentation says it was for. Which of the exemption conditions applies to your facts depends on when the transactions were effected — the legislation sets different conditions for transactions before and after 5 December 2005, and a long-running structure can engage more than one.

The genuine transactions exemption at section 742A

For transactions taking place on or after 6 April 2012, a separate exemption was introduced for genuine transactions, tested against conditions requiring that the transaction be genuine and that applying the charge would constitute an unjustified and disproportionate restriction on a freedom protected by EU law — in practice, the freedom of establishment or the free movement of capital. This is the treaty-protected defence, and it was drafted after the UK's ToAA regime was found vulnerable on EU law grounds.

Post-Brexit its scope is narrower and more contested, but it remains directly relevant to two populations: individuals whose arrangements involve EEA establishments, and anyone rebuilding historic years that fall inside the extended offshore assessment windows and which pre-date the UK's departure. Where the person abroad is a US LLC or US corporation with no European establishment, this defence will generally not assist, and the analysis falls back to the purpose and commerciality exemptions.

Why "we had commercial reasons" is not a defence

All three routes require the officer to be satisfied, on evidence. In a compliance catch-up, evidence means contemporaneous material: board minutes recording why the company was formed and why it retained rather than distributed; correspondence showing the commercial driver; the original instructions given when the entity was established; bank and accounting records demonstrating that the company did what it said it did; the actual commercial activity of the business rather than a description of it. An assertion made in 2026 about an intention formed in 2012, unsupported by anything written at the time, is very weak. Where documentation is thin — and after twelve or fifteen years it very often is — the honest strategy is to reconstruct what can be reconstructed, disclose the position transparently, and quantify the charge rather than assert an exemption that cannot be evidenced.

Is there relief for income that has already been taxed?

Yes, and it is essential to the calculation. The code contains no-duplication provisions so that the same income is not charged twice under different charging sections or on different people in circumstances the Act addresses. Where the individual is charged under section 720 or 727, the legislation allows them, broadly, the deductions and reliefs that would have been available had the income actually been theirs — so allowable expenses of the company's income-producing activity are not simply ignored, and foreign tax suffered on that income is capable of being brought into account.

In addition, where a company has actually distributed income that has already been attributed and charged, the distribution is not charged again. The mechanics of that relief are unforgiving in practice: it requires a running record, company year by company year, of income attributed, tax paid, and distributions subsequently made. Where several years are unfiled, that record does not exist and has to be built from scratch before a single figure can go on a return.

How far back can HMRC go?

Two separate time questions get confused, and the distinction matters enormously to a dual national with an old structure.

There is no time limit on the transfer itself. The code does not stop applying because the transfer happened long ago. An LLC formed in 2006, a corporation capitalised in 1998, an investment company established before you ever moved to Britain — all remain capable of generating a current-year charge on current-year income. The question is never "how old is the structure?" but "is income arising to the person abroad now, and do the conditions apply now?"

There is a limit on how far back HMRC can assess. The ordinary assessment window is four years from the end of the tax year, extended to six years where the loss of tax was brought about carelessly and to twenty years where it was deliberate. For offshore matters and offshore transfers there is an extended window that reaches back considerably further than the ordinary careless limit, precisely to accommodate cases of this type. The combination is uncomfortable: the structure is in scope without limit, and the assessable window for past years is longer than most people assume.

Where does the charge go on the Self Assessment return?

The attributed income is reported on the foreign pages — the SA106 supplementary pages of the SA100 return — which is also where foreign tax credit relief is claimed. Three points of filing discipline apply.

• Disclose the basis, not just the number. The white space on the return is where you set out that the figure is income attributed under the transfer of assets abroad provisions, identify the person abroad, and state the charging section relied on. A bare number invites an enquiry; a properly framed disclosure starts the clock on finality.
• Claim, do not assume, any exemption. If you are relying on a purpose or commerciality exemption to leave income out of account, that position is disclosed, with the grounds. Silence is not a claim.
• Get the residence overlay right. From 6 April 2025 a qualifying new resident under the four-year foreign income and gains regime can claim relief for foreign income arising under the ToAA charges. If your arrival in the UK is recent, the correct answer for the early years may be relief rather than charge — but it is a claim, and claims have deadlines.

How do you rebuild several unfiled years?

Where returns are missing, the work is a reconstruction exercise before it is a filing exercise. The sequence we follow on US UK cross-border catch-up files is:

• Establish the person abroad and its accounting periods. The company's own year end drives everything. Its results have to be mapped onto UK tax years, not the other way round.
• Rebuild the company's income on UK principles, year by year. This is the step people skip. The figure attributed is not the company's US taxable income, nor its book profit. It is its income, measured on UK computational rules, with UK source and character rules applied to each stream — interest, dividends, rents, trading profits — because the rate and the credit position differ by stream.
• Identify the correct charging section for each year. Section 720 in most years; section 727 in any year a capital sum or loan was received; section 731 where the individual was not a transferor. This can change across the period, particularly across 5 April 2025.
• Track distributions and prior charges so that the no-duplication relief can actually be claimed rather than lost.
• Compute the UK tax, interest and any penalty exposure, and decide the disclosure route on the basis of the numbers rather than before them.

The US overlay: the same company, reported twice, differently

Here is the part that generalist guidance on either side of the Atlantic handles badly. The company that triggers the UK charge is almost certainly already on your US return, because a US citizen owning a non-US entity has reported it for years under one of three regimes:

• as a controlled foreign corporation on Form 5471, with Subpart F and global intangible low-taxed income inclusions flowing to the 1040;
• as a foreign disregarded entity or foreign branch on Form 8858, where income is simply reported on the owner's return; or
• as a foreign partnership on Form 8865, with the owner's distributive share flowing through.

The entity classification election made — or never made — at formation frequently determines which of these applies, and the UK does not follow the US classification. A US LLC treated as disregarded for US purposes may be treated as an opaque company by HMRC, which is the root of the classification mismatch that makes these files difficult. Both jurisdictions are now taxing the same underlying profits, but almost never in the same amount, in the same year, or against the same person.

Feature	UK (ToAA, ITA 2007 Part 13 Ch 2)	US (CFC / disregarded entity regimes)
Trigger	Relevant transfer plus power to enjoy, or capital sum, or benefit received	Ownership threshold and entity classification; no transfer required
Measure of income	Company's income computed on UK principles, by income stream	Earnings and profits, Subpart F and tested income on US principles
Timing	UK tax year in which income arises to the person abroad	US tax year, driven by the entity's tax year end
Amount attributed	Potentially the whole income, subject to apportionment between transferors	Pro rata share by ownership percentage
Character preserved	Yes — source and type of income matter for rate and credit	Partly; inclusions may be recharacterised as ordinary income
Main reporting vehicle	SA106 foreign pages of the SA100	Form 5471, Form 8858 or Form 8865 with the 1040
Relief for underlying tax	Deductions and reliefs as if the income were the individual's	Deemed paid credits and the section 962 election in defined cases
Escape routes	Purpose, commerciality and genuine transaction exemptions	High-tax exceptions and elections, not purpose-based

Why is foreign tax credit relief so awkward here?

Credit relief, in both directions, asks a simple question: is this the same income, in the same period, taxed in the hands of the same person? Under a ToAA charge the answer is frequently no on at least one limb.

• Different measure. The UK attributes income computed on UK rules. The US includes a figure computed on earnings and profits or tested income concepts. The two numbers will differ, sometimes substantially, and credit is limited to tax on the common element.
• Different year. A non-coterminous company year end puts the UK charge and the US inclusion in different fiscal years. Credit relief generally requires the tax to relate to the same income for the same period, and a timing mismatch can leave relief stranded.
• Different person and different tax. Where the US tax sits at the corporate level, or is imposed on the entity rather than on the individual, matching it against a UK personal charge on attributed income is difficult. Where the UK charges the individual and the US charges nobody — because an exception applies — there may simply be no foreign tax to credit.
• Treaty limits. The double taxation convention relieves double taxation, but it relieves it by reference to its own rules on residence, source and the taxes covered. It is not a general promise that you will never pay more than once on an economic profit, and attributed income under a domestic anti-avoidance code sits awkwardly within it.

The practical consequence is that a dual national can end up economically taxed twice on the same company profits, once in each country, with only partial credit available. That outcome is not always avoidable, but it is almost always reducible — through correct classification, correct measurement, correct year mapping, and correct elections — and none of that is possible until both returns are prepared on a single consistent set of figures. Preparing the UK and US positions in isolation is how the worst outcomes happen. Our cross-border tax preparation work starts by building one dataset and filing both sides from it.

What if you have missed years on both sides?

Most people who discover a ToAA exposure discover it because something else surfaced first: an unfiled US return, a missed Form 5471, an account disclosed under exchange of information. If US returns are also outstanding, the two catch-ups have to be sequenced deliberately, because the figures in each drive the credit claims in the other. Where the failure was non-wilful, the IRS streamlined filing procedures remain the principal route for bringing US returns and information returns current, and the UK disclosure is then built on figures that already reconcile. More on both regimes sits in our cross-border guides.

A transfer of assets abroad charge is unpleasant, but it is a reporting problem with a determinable answer, not an open-ended liability. The work is accurate reconstruction, honest disclosure, and a credit position argued on evidence. If you hold both nationalities, live in the United Kingdom, and own or once transferred assets to a non-UK company — particularly one that has retained rather than distributed its income — the right next step is a confidential review of the position before HMRC or the IRS opens the conversation for you. Contact our cross-border team to arrange a discreet, privileged discussion of your circumstances and a clear plan for bringing both returns fully up to date.