Introduction: Why Form 8992 Costs UK Company Owners More in 2026
Form 8992 is the single page that converts your British company's retained profit into American taxable income, and for tax years beginning after 31 December 2025 it now produces a materially larger number than it did last year. Furthermore, the change happened quietly. The One Big Beautiful Bill Act renamed the inclusion, stripped out the relief that sheltered asset-heavy businesses, and adjusted the deduction and credit percentages in the same breath. Consequently, thousands of Americans who own UK limited companies will file the same form this year and discover a bill that has grown without their profits growing at all.
At TaxYork, we prepare this calculation every filing season for founders, investment professionals and company owners across London and the wider United Kingdom. Moreover, we see the same three mistakes repeatedly: filers who skip the form because their inclusion is nil, filers who still apply the old tangible-asset relief, and filers who report the charge on a personal return without considering the election that would eliminate it. This guide walks through the current mechanics in full, using the December 2024 instructions and current 2026 law.
What Form 8992 Actually Calculates
Form 8992 is the schedule on which a United States shareholder computes the amount of a controlled foreign corporation's income that must be swept onto a US return before any dividend is paid. Specifically, the form aggregates your pro rata share of tested income and tested loss across every controlled foreign corporation you hold, nets them, and produces a single inclusion figure. Additionally, it allocates that inclusion back to each individual company, which matters later for foreign tax credit purposes.
Crucially, Form 8992 does not report the company. Form 5471 reports the company. Instead, Form 8992 reports you, the shareholder, and it exists purely to arrive at the inclusion figure under section 951A. Therefore, the two forms are complementary rather than alternative, and a filer who lodges one without the other has an incomplete return.
The Form That Has Not Caught Up With the Law
Here lies the practical difficulty that no competitor guide addresses honestly. The current Form 8992 carries a December 2022 revision date, and the official instructions carry a December 2024 revision date. Neither document reflects the statutory changes that took effect for tax years beginning in 2026. Consequently, the printed form still contains lines that ask for a deemed tangible income return that the law no longer provides.
Preparers must therefore complete a 2022 form under 2026 rules, entering zero where the statute has removed a relief. Furthermore, software vendors have handled this transition inconsistently. In our experience, checking the underlying arithmetic manually remains the only reliable safeguard until the Internal Revenue Service issues a revised Form 8992 PDF reflecting the new regime.
Who Must File Form 8992 and Who Is Quietly Excused
The filing test is narrower than most readers expect, yet it catches people who assume they are outside it. Specifically, you must file if you were a United States shareholder of at least one controlled foreign corporation at any time during that company's tax year ending with or within your own tax year, and you owned stock in that company under section 958(a) on the last day of the company's year in which it qualified as a controlled foreign corporation.
The Ten Per Cent Test and the Last Day Rule
A United States shareholder owns ten per cent or more of the total combined voting power, or ten per cent or more of the total value, of a foreign corporation. Importantly, ownership counts directly, indirectly and constructively. A controlled foreign corporation exists when United States shareholders together own more than fifty per cent by vote or value on any day of the year.
The last-day rule creates a genuine planning point that most guides omit entirely. Notably, if you dispose of your shareholding before the final day of the company's accounting period, you fall outside the Form 8992 filing requirement for that year even though you held the shares for eleven months. Conversely, acquiring shares late in the year can pull you in. Accordingly, the timing of a share transfer around a UK accounting reference date deserves genuine attention.
Domestic Partnerships No Longer File Form 8992
Domestic partnerships have been removed from the Form 8992 population entirely. Instead, a domestic partnership completes Part VI of Schedule K-2 and Part VI of Schedule K-3 on Form 1065, and the individual partners then pick up their own share. Meanwhile, a partner of a domestic partnership remains within the definition of a person who must file, so the obligation moves down rather than disappearing.
This distinction traps American partners in UK-facing investment structures every year. Furthermore, partners frequently receive a Schedule K-3 late, well after their personal extension has run, which leaves them completing Form 8992 from estimated figures. Requesting the partnership's Part VI data early therefore protects the accuracy of your own return.
S Corporations That Elected Entity Treatment
An S corporation that elected to be treated as owning controlled foreign corporation stock under proposed regulations section 1.958-1(e), and that is itself a United States shareholder, must file Form 8992 with Schedule A attached to its Form 1120-S. Subsequently, the resulting figure lands on Schedule K, line 10, using code E. Owners of American S corporations that in turn hold British subsidiaries should confirm which regime their filings actually follow.
What the One Big Beautiful Bill Act Removed
The 2025 legislation renamed global intangible low-taxed income as net controlled foreign corporation tested income, universally shortened to NCTI. However, the rename is the least significant part of the change. Two substantive amendments alter the arithmetic that flows onto Form 8992, and one of them will surprise anyone with a capital-intensive British business.
The Deemed Tangible Income Return Has Gone
Under the old regime, you reduced your net tested income by a deemed ten per cent return on qualified business asset investment, less certain interest expense. Consequently, a company holding significant depreciable tangible property sheltered a slice of profit from the charge altogether. That relief has been repealed for tax years beginning after 31 December 2025.
Under the revised section 951A regulations framework, NCTI is now simply tested income less tested loss, with no asset-based reduction at all. Therefore, manufacturing subsidiaries, property-holding companies, equipment-heavy operations and fitted-out professional practices see their inclusions rise materially without any change in trading performance. Notably, several widely read guides published as recently as December 2025 still teach the old qualified business asset investment calculation with worked examples. Those examples are now wrong.
The Deduction Fell and the Credit Rose
The section 250 deduction that applies to the inclusion dropped from fifty per cent to forty per cent. Meanwhile, the deemed-paid foreign tax credit haircut narrowed, so ninety per cent of the associated foreign tax now counts rather than eighty per cent. Together, these produce an effective corporate rate of 12.6 per cent, up from 10.5 per cent, and they lift the foreign rate needed to eliminate the charge from 13.125 per cent to roughly fourteen per cent.
That fourteen per cent threshold is the number to hold on to. Specifically, the United Kingdom's main corporation tax rate of twenty-five per cent and its small profits rate of nineteen per cent both sit comfortably above it, as the official rates on GOV.UK confirm. Consequently, a properly structured claim should leave most UK trading companies with no residual American charge — but only for filers who can access the deduction and the credit at all.
Working Through Part I and Part II of Form 8992
The form itself is short, which lulls filers into treating it as mechanical. In practice, the sequencing matters, because the instructions send you back and forth between the main form and Schedule A in a specific order.
Schedule A Columns (a) Through (f) Come First
Begin with Schedule A, completing columns (a) through (f) only. These capture the name and identifying number of each controlled foreign corporation, its tested income, its tested loss, and your pro rata share of each. Afterwards, carry the totals to Part I, lines 1 through 3, following the instructions printed on the face of the form.
Only when Part I, line 3 exceeds zero do you return to Schedule A and complete columns (g) through (l). Those later columns handle the allocation ratio and push the inclusion back out to each company, which subsequently drives your foreign tax credit computation on Form 1118 or Form 1116. Attempting the whole schedule in one pass is the commonest source of preparer error.
The Line 3 Trap That Costs Ten Thousand Dollars
Read the following sentence twice, because it contradicts almost every secondary source on the internet. If the amount on Part I, line 3 is zero or negative, you do not complete Part II or Schedule A columns (g) through (l) — but you must still include Form 8992 and Schedule A with your return.
In other words, a nil inclusion does not excuse the filing. Nevertheless, countless returns each year simply omit the form on the reasoning that nothing is owed. That omission is a failure to report information required on the form, and it exposes the filer to the penalty regime discussed below. Additionally, an incomplete return arguably leaves the assessment period open. Filing a nil Form 8992 costs nothing and closes that exposure permanently.
Part II Line 5 and Where the Number Lands
Part II produces the final inclusion at line 5. For an individual shareholder, that figure goes to line 8o of Schedule 1 on Form 1040. For a corporate shareholder, it goes to line 17 of Schedule C on Form 1120. For an S corporation that made the entity election, it goes to Schedule K, line 10, under code E.
These destinations sound trivial, yet reporting the inclusion on a general "other income" line instead of line 8o distorts the return's international data and complicates any later foreign tax credit claim. Therefore, precision here genuinely pays.
Where the Numbers on Form 8992 Come From
Form 8992 imports rather than originates. Every tested income and tested loss figure traces back to Schedule I-1 of Form 5471, prepared at company level, and every figure must arrive in United States dollars.
Schedule I-1 of Form 5471
Schedule I-1 of Form 5471 computes the information needed for the inclusion at the level of each controlled foreign corporation. Your Schedule A then reports your pro rata share of those amounts. Importantly, if you are excused from filing Schedule I-1 for a company under the multiple-filer exception — because another shareholder filed it — you must still produce the amounts as though you had prepared it yourself. The exception relieves the paperwork, not the arithmetic.
Translating Sterling Into Dollars
British statutory accounts arrive in sterling, and the inclusion must be reported in dollars. Consequently, the exchange rate you select drives the answer. The Internal Revenue Service publishes yearly average exchange rates for this purpose, and functional currency translation under section 989 governs which rate applies to which item.
Furthermore, UK accounts prepared to a 31 March or 30 April year end rarely align with the American calendar year. Accordingly, the company's tax year ending with or within your tax year determines the period you report, not the twelve months to December. Getting this wrong shifts an entire year of profit into the wrong return.
Why Individuals Pay Far More Than Corporations
Here is the structural unfairness at the heart of the regime, and it is where most of the money sits for our clients. An individual American shareholder, filing Form 8992 personally, receives no section 250 deduction and no deemed-paid foreign tax credit whatsoever. Instead, the inclusion is taxed at ordinary graduated rates reaching thirty-seven per cent, and the corporation tax the company already paid to HMRC delivers nothing.
The Section 962 Election Changes Everything
Section 962 lets an individual elect to be taxed on the inclusion as though they were a domestic corporation. Consequently, the twenty-one per cent corporate rate applies, the forty per cent deduction under Form 8993 becomes available, and the ninety per cent deemed-paid credit finally recognises the UK corporation tax already suffered.
The election is not free. Subsequently, when the company distributes the previously taxed profit, a second charge arises to the extent the distribution exceeds the tax paid under the election. We examine that mechanic in detail in our guide to the Section 962 election for US owners of UK companies. Nevertheless, for a profitable British trading company paying twenty-five per cent, the election almost always wins.
The High-Tax Exclusion at 18.9 Per Cent
Alternatively, the section 954(b)(4) high-tax exclusion removes tested income from the calculation entirely when the effective foreign rate exceeds 18.9 per cent, being ninety per cent of the twenty-one per cent corporate rate. The UK main rate of twenty-five per cent clears that threshold by 6.1 percentage points. Meanwhile, the nineteen per cent small profits rate clears it by only 0.1 points, which reliefs can easily erase.
However, the exclusion is a blunt instrument. Excluded income generates no credit, so the UK tax attaching to it is stranded rather than relieved, a point we develop in our analysis of foreign tax credit basket errors. Furthermore, the election applies across the whole controlled foreign corporation group, not company by company. Modelling both routes before filing Form 8992 is therefore essential rather than optional.
Case Study: A London Consultancy Taxed at Twenty-Five Per Cent
Consider an American citizen resident in London who owns one hundred per cent of a UK limited company providing strategic advisory work to financial institutions. For the year ended 31 December 2026, the company generates $500,000 of profit before UK corporation tax. HMRC takes twenty-five per cent, or $125,000, leaving tested income of $375,000.
The company had fitted out its Mayfair office and holds depreciable tangible property with an average adjusted basis of $600,000. Under the pre-2026 rules, a deemed tangible income return of ten per cent, or $60,000, would have reduced the inclusion to $315,000. Under the 2026 regime, that reduction has gone. Consequently, the figure reaching Part I, line 3 of Form 8992 is the full $375,000, and the QBAI repeal alone has added $60,000 to the inclusion.
Filing personally without any election, our client faces $375,000 taxed at a thirty-seven per cent marginal rate, producing $138,750 of American tax. Meanwhile, the $125,000 already paid to HMRC produces no credit at all. Combined, $263,750 of tax lands on $500,000 of profit, an effective rate of 52.75 per cent.
Making the section 962 election transforms the outcome. Specifically, the forty per cent deduction leaves $225,000 taxable, and twenty-one per cent of that is $47,250. The deemed-paid credit then delivers ninety per cent of the $125,000 UK corporation tax, or $112,500. Because the credit exceeds the liability, the American charge for the year falls to nil, and the election saves $138,750 in a single filing season. Notably, our client keeps a carryforward position and must plan for the second charge on eventual distribution.
Penalties, Corrections and the Foreign Tax Credit Haircut
The Internal Revenue Service treats Form 8992 as an information return, and the consequences of omitting it are correspondingly severe.
Section 6038 and the Ten Thousand Dollar Charge
The instructions state plainly that penalties under section 6038 subsections (b) and (c) may apply for failure to report the required information. Subsection (b) imposes $10,000 per form per year, rising by a further $10,000 for each thirty-day period after a ninety-day notice, capped at $50,000 per failure.
Subsection (c) is the provision that hurts sophisticated filers most. Specifically, it reduces the foreign taxes available for credit by ten per cent, with a further five per cent for each subsequent three-month period of non-compliance. Consequently, a filer with substantial UK corporation tax to claim can lose more through the credit haircut than through the headline penalty itself.
Filing a Corrected Form 8992
If you discover that a filed Form 8992 was incomplete or incorrect, you file a corrected form with an amended return, following the amended return procedure for whichever return originally carried it. Additionally, you write "Corrected" at the top of the form and attach a statement identifying the changes. For filers whose exposure spans several unfiled years, the IRS Streamlined Filing Compliance Procedures may offer a cleaner route than piecemeal amendments.
Finally, where a treaty position affects the analysis, Form 8833 disclosure may be required alongside the return. Professional bodies including ICAEW, the AICPA and the Chartered Institute of Taxation publish ongoing technical commentary on these cross-border interactions, while HM Treasury and the US Treasury remain the primary sources for rate changes. Current UK rates and allowances appear in the published HMRC tables.
How TaxYork Can Help
We prepare Form 8992 alongside Form 5471, Form 8993 and the associated credit claims as a single integrated engagement rather than as separate deliverables. Furthermore, we model the section 962 election against the high-tax exclusion using your actual UK statutory accounts before anything is filed, so the choice rests on arithmetic rather than assumption.
Our team handles the full spectrum of US tax return preparation for expats, including owners of British trading companies, property companies and professional practices. Additionally, where returns are outstanding, we manage catch-up filings through the IRS Streamlined Filing procedures. Clients with UK property companies should also read our analysis of the close investment holding company charge, which interacts directly with this calculation.
Conclusion
Form 8992 has become a more expensive page to file. The deemed tangible income return has gone, the deduction has fallen to forty per cent, and the deemed-paid credit has risen to ninety per cent, leaving a fourteen per cent breakeven that most British companies clear comfortably. However, that comfort only materialises for filers who claim the deduction and the credit correctly.
Above all, remember the three points that competitor guides consistently miss. A nil or negative inclusion still requires the form. Individuals get nothing without an election. The printed form has not yet caught up with the statute. Ultimately, accurate preparation of Form 8992 is the difference between an effective rate near zero and one above fifty per cent.
Contact Us
Speak to our cross-border specialists before your next filing rather than afterwards. You can book a consultation with our team, email hello@taxyork.com, or call 020 3488 8606. Furthermore, we welcome enquiries from company owners, investors and finance professionals who need Form 8992 prepared correctly the first time.
Disclaimer
This article provides general information about United States and United Kingdom tax rules and does not constitute professional advice. Tax legislation changes frequently, and the application of these rules depends entirely on your individual circumstances. Accordingly, you should obtain specific professional guidance before acting on anything contained here. TaxYork accepts no liability for any action taken in reliance on this article.
Written by the TaxYork Expert Team — US-UK tax specialists.