Introduction: Why Form 926 Catches Founders Who Simply Funded Their Own Company
Form 926 is the return American founders miss when they wire money into a British company they already own. Furthermore, the penalty is calculated against the amount transferred rather than any tax underpaid, which makes it disproportionate to an oversight that involved no avoidance whatsoever.
The scenario repeats constantly. An American incorporates a UK limited company, funds it to cover salaries and premises, and reports the company on the returns their accountant prepares. Consequently, nobody files the Form 926 that reports the funding itself. Meanwhile, the exposure grows with every subsequent injection of capital.
At TaxYork we see this across technology founders, fund principals and owner-managers who moved to Britain and built something here. Additionally, the trap is unusually easy to fall into, because the trigger is ownership rather than size.
What Form 926 Reports
Form 926 is the Return by a U.S. Transferor of Property to a Foreign Corporation. Specifically, it reports outbound transfers of property, including cash, under section 6038B. Importantly, it is an information return and creates no tax by itself. However, the transfer it reports may itself be taxable under section 367, which is where the real money often sits.
Who This Guide Addresses
This guide serves American founders, investors and company owners who hold or fund a British corporation. Moreover, it assumes meaningful sums are moving, whether as share capital, loans converted to equity or working capital. Our guidance on US tax return preparation for expats explains how these filings sit within the annual package.
When Form 926 Becomes Mandatory for a UK Company
Two independent tests trigger the obligation on a cash transfer, and satisfying either one is enough. Consequently, most founders qualify under the first without ever reaching the second.
The Ten Per Cent Ownership Test
Where you hold at least 10% of the total voting power or total value of the foreign corporation immediately after the transfer, a cash transfer is reportable. Therefore, a founder owning their UK company outright meets this test permanently. Notably, the rule contains no minimum amount, which means even a modest capital injection becomes reportable once the ownership condition is satisfied.
This surprises people, and reasonably so. Furthermore, it means the founder who owns 100% of a British company faces a Form 926 obligation on funding that a passive 5% investor would not.
The $100,000 Cash Rule
The second test applies regardless of ownership. Specifically, where the cash you transferred during the 12-month period ending on the date of the transfer exceeds $100,000, the transfer is reportable. Moreover, the test aggregates across the period rather than looking at single payments, so a series of smaller transfers can breach it collectively.
Founders funding a UK business in instalments therefore need to track the rolling total. Additionally, the detailed reporting regulations govern how these transfers are described on the return.
Transfers of Property Other Than Cash
Contributing equipment, receivables, shares or intellectual property to your UK limited company is equally reportable. Furthermore, non-cash contributions raise valuation questions that cash never does, since the return requires the fair market value of what moved.
The Section 367 Tax That Sits Behind Form 926
Here the analysis moves from disclosure to genuine liability, and this is the part generic guidance skips.
Why Outbound Transfers Lose Their Tax-Free Status
Ordinarily, contributing property to a corporation you control is tax-free. However, section 367 switches that treatment off when the recipient is foreign. Consequently, appreciated property transferred to a British company can trigger immediate gain recognition, and the Form 926 you file is the document that reports it.
Cash escapes this, which is the saving grace for most Form 926 filers. Therefore, straightforward funding creates a reporting duty without a tax charge, provided the transfer really is cash.
Intellectual Property and the Deemed Royalty
Intangibles receive their own harsh treatment. Specifically, section 367(d) treats a transfer of intangible property to a foreign corporation as a sale in exchange for contingent payments, producing a deemed royalty stream taxed to the transferor over time. Consequently, a founder who assigns software, patents or brand rights into their UK company can create years of phantom income.
This is the single most expensive mistake we correct in this area. Moreover, it frequently happens informally, when a founder simply begins operating the intellectual property through the British entity without documenting anything. Our cross-border planning specialists examine the position before the transfer wherever possible, since restructuring afterwards is considerably harder.
The Interaction With Your Other Returns
Form 926 does not replace anything. Furthermore, a founder controlling a UK company will generally also file Form 5471 for the corporation itself. Meanwhile, where a Form 8832 election has made the company disregarded, there is no transfer to a foreign corporation at all, and the reporting shifts elsewhere entirely.
Structuring the Funding Before You Send It
How you characterise money going into a British company shapes both the reporting and the tax, and the decision is far easier to make in advance.
Share Capital Versus Shareholder Loan
Subscribing for shares is unambiguously a contribution of property to a foreign corporation, so the reporting analysis follows directly. In contrast, a genuine arm's-length loan is a different transaction in character, and the two are treated differently across several provisions. Consequently, founders should document which one they intend at the time rather than deciding retrospectively.
However, do not assume a loan removes the question. Specifically, advances that carry no interest, no repayment terms and no realistic prospect of repayment invite recharacterisation as equity. Furthermore, where that recharacterisation occurs, the contribution analysis and the Form 926 obligation follow with it, only now without contemporaneous documentation to support your position.
Why the Paperwork Matters More Than the Label
British company law makes the equity route highly visible, because share issues appear at Companies House and in the statutory accounts. Meanwhile, a shareholder loan sits quietly in the balance sheet. Therefore, we advise founders to paper loans properly, with interest at a defensible rate and a repayment schedule, so that the characterisation survives scrutiny on both sides of the Atlantic.
Additionally, the UK treatment deserves attention in its own right. Notably, interest paid to a US shareholder engages withholding and transfer pricing considerations, and the corporation tax position of the deduction depends on those same rules.
Timing Transfers Across Tax Years
The $100,000 cash test measures the rolling 12 months ending on the transfer date, not the calendar year. Consequently, splitting a large injection across two December and January payments achieves nothing, since the test looks backwards from each transfer. Moreover, the ownership test makes the Form 926 point moot for most founders anyway, because a controlling holder reports regardless of amount.
Penalties and the Open Limitation Period
The sanction here is structurally different from most information return penalties, because it scales with the transaction.
Ten Per Cent of the Amount Transferred
The penalty equals 10% of the fair market value of the property at the time of the transfer. Additionally, it is capped at $100,000 unless the failure was due to intentional disregard, in which case no cap applies. Therefore, a founder who transferred £400,000 into a British company faces roughly $50,000 of exposure on a single unreported movement.
Consider how quickly this accumulates. Specifically, a company funded across three years in tranches produces a separate reportable transfer each time, and the cap applies per failure rather than across the whole history.
Gain Recognition on Top
Where section 367 applied, the penalty is only part of the cost. Consequently, the unreported gain or deemed royalty remains taxable, with interest running from the original due date. Furthermore, that liability often dwarfs the information return penalty itself.
The Limitation Period Stays Open
Filing late has one further consequence worth understanding. Notably, the assessment period runs until three years after the required information is actually provided. Therefore, an unreported 2019 transfer keeps that year open indefinitely, and it remains open for every item on the return rather than the transfer alone.
Correcting an Unreported Transfer
Two routes exist, and the correct choice depends on whether tax was underpaid as well as unreported.
Where Only the Form Was Missed
Where the transfer was cash, no gain arose and your income was reported correctly, the Delinquent International Information Return Submission Procedures provide the route. Furthermore, you attach the late returns to an amended income tax return with a reasonable cause statement. However, relief is not automatic, so the statement must address the specific facts rather than reciting generalities.
Where Tax Was Also Underpaid
Where section 367 produced gain or a deemed royalty that never reached your return, the position is different. Consequently, the Streamlined Foreign Offshore Procedures usually offer the better path for non-wilful taxpayers resident in Britain, since information returns inside a valid streamlined package are not separately penalised.
Building the Reasonable Cause Argument
The strongest cases involve advisers who never raised the point. Additionally, founders who used a UK accountant for everything have a genuinely persuasive narrative, because British practices do not prepare American information returns and rarely mention them. Meanwhile, contemporaneous evidence of what you were told carries real weight.
Case Study: A Technology Founder Funding a London Company
The following illustrates the exposure with representative figures.
The Position
An American founder incorporated a London software company in 2021, owning 100% of the shares. She funded it over three years with transfers of £220,000, £310,000 and £180,000 to cover engineering salaries before revenue arrived. Furthermore, she assigned the original codebase to the company in 2021 without documenting a licence or a price.
Her UK accountant prepared the statutory accounts and corporation tax returns impeccably. Consequently, nobody considered the American reporting at all.
The Numbers
Each cash transfer was reportable, because her ownership exceeded 10% immediately afterwards. Therefore, three unreported transfers created penalty exposure of 10% of each amount, reaching the position where roughly $88,000 was at risk across the three years.
Additionally, the codebase assignment engaged section 367(d). Specifically, that transfer produced a deemed royalty stream taxable to her personally, which had gone unreported since 2021 and carried interest.
The Outcome
We valued the intangible as at the transfer date, quantified the deemed royalty for each year, and filed a streamlined submission covering the three most recent years together with a Form 926 for each transfer. Furthermore, we documented the reasonable cause narrative around her UK adviser's scope. Ultimately, she paid the correct tax on the royalty stream, avoided the information return penalties entirely, and now reports each funding round as it happens.
How TaxYork Can Help With Form 926
We prepare cross-border filings for founders and company owners whose businesses sit in Britain, and outbound transfer reporting is routine work for us.
Reviewing Transfers Before They Happen
The best outcome comes from planning the transfer rather than reporting it afterwards. Consequently, we assess whether a proposed contribution triggers gain, whether an alternative structure avoids it, and what the British side costs.
Preparing the Return and the Valuation
We prepare Form 926 alongside the rest of your return, including the valuation support that non-cash transfers require. Additionally, we coordinate with the corporation reporting so the two filings tell a consistent story.
Correcting Historic Funding Rounds
Where transfers went unreported, we reconstruct the Form 926 history from bank records and company filings. Moreover, the technical resources published by the ICAEW tax faculty and the Chartered Institute of Taxation inform the UK analysis, while HM Revenue and Customs records help establish what was contributed and when.
Conclusion
Form 926 punishes ordinary business behaviour, because funding your own company is the most natural thing a founder does. Furthermore, the ownership test means the obligation attaches regardless of amount, and the penalty scales with the sum transferred rather than with any tax avoided.
The discipline required is modest once you know the rule. Therefore, treat every transfer into your British company as a reportable event, document intellectual property before it moves, and file the return with the tax return for that year. Ultimately, a Form 926 prepared contemporaneously costs very little, while an unreported intangible transfer can cost years of unexpected income.
Contact Us
Speak to our US-UK specialists before your next funding round, or about transfers already made. We act for founders, investors and company owners across London and the wider United Kingdom.
Email hello@taxyork.com or call 020 3488 8606. Alternatively, book a consultation and we will review your funding history and any Form 926 obligations arising from it.
Disclaimer
This article provides general information about United States and United Kingdom tax reporting requirements and does not constitute professional advice. Tax legislation changes frequently, and the correct treatment depends entirely on your individual circumstances, the nature of the property transferred and your ownership position. Figures cited reflect rules current at the date of publication. You should obtain specific professional advice before acting on anything set out above. TaxYork accepts no liability for action taken or omitted in reliance on this article.