Is the Section 965 transition tax still payable if I never filed for that year?

Yes. Nothing about the passage of time extinguishes it. Where a Form 5471 was required for the inclusion year and never filed, section 6501(c)(8) provides that the time for assessment of any tax with respect to any return, event or period to which that information relates does not expire before three years after the information is furnished to the IRS. The assessment period has therefore not started, and where no return was filed for the year at all the ordinary three-year period under section 6501(a) never began either. The year is open, the liability is assessable, and it stays that way until you file.

Which tax year does my section 965 inclusion actually fall in?

It depends on your UK company's year end, not on the calendar. The charge attaches to the last taxable year of the specified foreign corporation beginning before 1 January 2018, and you take the inclusion into income in your tax year in which or with which that company year ends. A 31 December year end produces a 2017 inclusion. A 30 September or 31 March year end, both common because Companies House defaults the accounting reference date to the anniversary month of incorporation, produces a company year ending in 2018 and therefore a 2018 inclusion. The IRS describes the inclusion year as generally 2017 and/or 2018 for this reason.

Can I still elect to pay the transition tax in eight annual installments?

Generally no. IRS guidance states that taxpayers must make the section 965(h) election by the due date of their return including extensions, whether or not an extension was requested, and a 2017 or 2018 return filed now is well outside that. The contemporaneous relief that let 2017 filers make the election on a Form 1040-X expired on 15 October 2018. If you are filing through the streamlined procedures the IRS is explicit that the election to pay in installments under section 965(h)(1) is not available for taxpayers submitting delinquent returns under those procedures. Expect the full liability to be payable with the submission, with interest from the original due date.

Do I still need a Form 5471 for the transition tax year if there was no inclusion?

Yes. The Form 5471 obligation arises from your ownership of the foreign corporation under section 6038 and the filer categories, not from whether an income inclusion resulted. A nil or near-nil section 965 computation still has to be evidenced on a filed return, and until the information return is furnished the assessment period for that year does not begin to run under section 6501(c)(8). The instructions provide for a 10,000 dollar penalty for each annual accounting period of each foreign corporation, a continuation penalty after notice up to a maximum of 50,000 dollars for each failure, and a reduction in the foreign taxes available for credit.

Does the transition tax year fit inside a three-year Streamlined Foreign Offshore submission?

No, and this is the point most often missed when a submission is scoped. The IRS requires taxpayers who own specified foreign corporations and have a section 965(a) inclusion to bring the inclusion year into compliance in their submission even if that year would not fall within the standard three-year lookback period. It goes further for a 2017 inclusion, stating that the lookback period must include tax year 2017 and all subsequent tax years. A submission on those facts is not a three-year package. Returns must also be annotated Streamlined Foreign Offshore Section 965 in red.

Did my small UK company really owe the transition tax?

Possibly not, and it is worth establishing before assuming the worst. The charge falls on accumulated post-1986 deferred foreign income at the higher of the 2 November 2017 and 31 December 2017 measurement dates, computed under US earnings and profits principles rather than taken from the Companies House accounts. Where profits were extracted annually as salary and dividends, little may have accumulated. Section 965(b) can also reduce the amount where the same shareholder had another foreign corporation with an earnings and profits deficit. A computed nil position that is filed closes the year; an assumed nil position leaves it open.

Section 965 Transition Tax: The Year Late Filers Fix

Form 5471 for the 2017 or 2018 tax year is rarely the only thing missing from a late filer's catch-up, because the return it attaches to may also have to carry a one-time income inclusion most people have never heard of. The Section 965 transition tax was a one-off charge on the untaxed accumulated foreign earnings of certain foreign corporations, and it reached individual US shareholders of an ordinary UK limited company exactly as it reached multinationals. Where the return for the inclusion year was never filed and no Form 5471 was attached, that year remains open, the liability remains assessable, and the installment relief that made the charge manageable in 2018 is gone.

What was the Section 965 transition tax, and who did it catch?

The IRS states the rule in a single sentence: "Section 965 requires United States shareholders to pay a transition tax on the untaxed foreign earnings of certain specified foreign corporations." Rewritten by the Tax Cuts and Jobs Act on 22 December 2017, it was the price of moving the United States toward a participation exemption system. Mechanically, section 965(a) increases the subpart F income of a specified foreign corporation by its accumulated post-1986 deferred foreign income, and the US shareholder takes that amount into gross income under section 951(a), measured as the greater of the amount determined as of 2 November 2017 or as of 31 December 2017.

The definitions are where UK company owners get caught. IRS practice materials describe a specified foreign corporation as a foreign corporation that either is a controlled foreign corporation within the meaning of section 957 or has one or more United States shareholders that is a domestic corporation, and a United States shareholder as one owning 10 percent or more of the stock, applying the indirect and constructive ownership principles of section 958. A US citizen in London who owns all the shares in her own consultancy sits inside both. Because the charge was reported at the time as a levy on the offshore cash of the largest technology groups, many individuals assumed it could not concern them. The IRS confirmed from the outset that impacted parties include domestic corporations but could also include other US persons, such as individuals. There was no de minimis exemption and no carve-out for owner-managed businesses.

On rates, the IRS describes the regime in these terms: "foreign earnings held in the form of cash and cash equivalents are taxed at a 15.5 percent rate, and the remaining earnings are taxed at an 8 percent rate." Those are not special rates in a rate table. They are produced by a deduction under section 965(c) that was calibrated to the corporate rate then in force, and that calibration matters a great deal for an individual shareholder.

The company had to be a foreign corporation for US purposes. A UK private limited company is an eligible entity whose default classification is a corporation where all members have limited liability, absent a contrary entity classification election.
You had to be a United States shareholder, meaning 10 percent or more by vote or value, applying the ownership and attribution principles of section 958.
The company had to have positive accumulated post-1986 deferred foreign income at the higher of the two measurement dates.
The charge attached to the company's last taxable year beginning before 1 January 2018, not to a calendar period chosen by the shareholder.
Nothing turned on whether cash was actually remitted. The repatriation was deemed, not real.

Which tax year does the section 965 inclusion fall in?

Almost every explainer says 2017. That is a shorthand, and for a late filer it is one that can put the inclusion on the wrong return. The statute operates on the last taxable year of the specified foreign corporation beginning before 1 January 2018, and the US shareholder takes the inclusion into income in the shareholder's taxable year in which or with which that company year ends. The IRS itself does not commit to a single year, describing the inclusion year as generally 2017 and/or 2018.

For a UK company with a 31 December accounting date the shorthand holds: the last taxable year beginning before 1 January 2018 is the year ended 31 December 2017, which falls inside the shareholder's 2017 tax year.

For a great many UK companies it does not hold. Companies House sets a new company's default accounting reference date to the last day of the month in which the anniversary of incorporation falls, so calendar year ends are the exception rather than the rule among owner-managed businesses. Take a 30 September date. The company's year beginning 1 October 2017 begins before 1 January 2018 and ends on 30 September 2018. It is the last such year, so the inclusion falls into the shareholder's 2018 tax year and the 2017 return carries nothing at all. That is not academic: the inclusion year fixes which unfiled year carries the charge, which year's Form 5471 must reflect the section 965 amounts, when the interest clock started, and how far back a disclosure must reach.

Obtain the accounting reference date and every set of statutory accounts covering periods straddling 2017 and 2018.
Establish the company's taxable year for US purposes, watching for short periods and for any UK accounting period longer than twelve months.
Identify the last of those taxable years that began before 1 January 2018.
The shareholder's inclusion year is the tax year in which that company year ended, which for a calendar-year individual is 2017 or 2018.
Confirm the shareholder was a United States shareholder for that year and held stock on the relevant date, since both the inclusion and the Form 5471 category depend on it.

How was the inclusion reported, and where does Form 5471 fit?

Reporting differed between the two possible inclusion years, which is another reason to fix the year first. For a 2017 inclusion the IRS required a bespoke attachment, stating that "a person that has income under section 965 of the Code for its 2017 taxable year is required to include with its return an IRC 965 Transition Tax Statement", signed under penalties of perjury. There was no dedicated form; the statement carried the computation.

From the following year the position was formalised. IRS procedural guidance records that in taxable year 2018, Form 965 and Forms 965-A and 965-B replaced the transition tax statement. Form 965-A is the Individual Report of Net 965 Tax Liability, and its reach is broad: any individual taxpayer, or taxpayer taxed like an individual, with a net section 965 tax liability for any tax year, or any such liability remaining unpaid at any time during a tax year, must file it. Form 965 itself is now obsolete, so the correct package depends on the year being filed rather than the year you are filing in.

Form 5471 sits underneath all of it. The inclusion is computed from the company's earnings and profits, and Schedule J is the accumulated earnings and profits record from which the number is derived and in which the resulting previously taxed earnings are tracked. IRS guidance addressed to shareholders who were United States shareholders of a specified foreign corporation during its 2017 taxable year and owned stock on the last day of that year confirmed a Form 5471 obligation covering the identifying information and Schedule J. In the ordinary owner-managed case that is a Category 5 filing, often a Category 4 filing as well. The IRS also made a point that catches those who assume the two obligations travel together: even where a United States shareholder has not previously filed Form 5471, that shareholder may still be subject to tax under section 965.

The information return exposure is significant in its own right. The instructions provide for a 10,000 dollar penalty for each annual accounting period of each foreign corporation for failure to furnish the information required by section 6038(a), an additional 10,000 dollars per foreign corporation for each 30-day period after notice, subject to a maximum of 50,000 dollars for each failure, together with a reduction of 10 percent of the foreign taxes available for credit under sections 901 and 960.

Does the transition tax year still have to be fixed if you never filed?

Yes, and the reason is section 6501(c)(8). It provides that in the case of information required to be reported under a list of provisions that includes section 6038, under which Form 5471 is filed, "the time for assessment of any tax imposed by this title with respect to any tax return, event, or period to which such information relates shall not expire before the date which is 3 years after the date on which the Secretary is furnished the information required to be reported under such section." Read against a 2017 or 2018 year in which a Form 5471 was required and never filed, the assessment period has not merely run long. It has not started, and will not until the information return is furnished.

There is a narrowing provision, though it offers little comfort here. Section 6501(c)(8)(B) states that where the failure is due to reasonable cause and not willful neglect, subparagraph (A) applies "only to the item or items related to such failure". The section 965 inclusion is itself an item related to the unfiled Form 5471, so narrowing the scope does not exclude the one item you were hoping to exclude. Separately, where no return was filed for the year at all, the ordinary three-year period under section 6501(a) never began either, because that period runs from the filing of a return.

Section 965 also carries its own assessment rule. Subsection (k) provides that "notwithstanding section 6501, the limitation on the time period for the assessment of the net tax liability under this section shall not expire before the date that is 6 years after the return for the taxable year described in such subsection was filed." That is a six-year floor measured from filing rather than from the original due date, so for a never-filer it points the same way as everything else: filing starts the period rather than ending it.

The other question late filers ask is whether the charge can be challenged rather than paid. It has been, at the highest level, and it survived. In Moore v. United States, decided on 20 June 2024, the Supreme Court held by seven votes to two that the mandatory repatriation tax under section 965 is constitutional. The taxpayers there were individual minority shareholders in a foreign operating company, which is close to the fact pattern of many UK company owners.

Can a late filer still make the section 965(h) installment election?

This is where late filers lose most, and the answer is generally no. The election under section 965(h) allowed the liability to be paid in eight back-loaded installments, at 8 percent for each of the first five, then 15, 20 and 25 percent, and the IRS describes the charge as one that "generally may be paid in installments over an eight-year period." But the timing rule is hard. IRS procedural guidance states that "taxpayers must make the IRC 965(h) election by the due date of their return, including extensions, whether or not an extension of time was requested." A 2017 or 2018 return filed now is not filed by that due date.

Contemporaneous relief existed and has long expired. IRS collection procedures record that individuals who filed a 2017 return without making the election could file a Form 1040-X on or before 15 October 2018 and make it, being treated as having requested an extension of time to file the original return. That door closed in 2018.

For anyone using the streamlined procedures the IRS removes any remaining doubt: "the election to pay net tax liability in installments under section 965(h)(1) is not available for taxpayers submitting delinquent returns under the streamlined filing compliance procedures." The whole liability is payable with the submission.

The acceleration rules still matter even though a late filer never gets the benefit of the election, because they show how fragile the IRS treats the liability as being. Guidance notes that certain acceleration events may cause the liability to become due immediately, and that an acceleration event includes, among other things, a liquidation, sale, exchange or other disposition of substantially all of the assets of the electing taxpayer. It further warns that failure to timely pay an installment could result in an addition to tax that accelerates the entire remaining balance. A UK company struck off or sold in the intervening years is exactly that fact pattern.

The full net section 965 tax liability is payable in one sum rather than spread across eight years.
Interest runs from the original due date of the inclusion-year return, which for a 2017 inclusion means interest accruing since 2018.
A compliant streamlined submission is not subject to failure-to-file, failure-to-pay, accuracy-related, information return or FBAR penalties, but interest is not a penalty and is not relieved.
There is no ongoing Form 965-A installment tracking to maintain, because there is no installment plan to track.
The cash-flow shape is the inverse of what the regime was designed to deliver, which is why the liability should be quantified before any filing date is committed to.

What did the section 962 election do for individuals?

Section 962 permits an individual US shareholder to elect to be taxed on amounts included under section 951(a) as if the shareholder were a domestic corporation. For the transition tax year it mattered because of the calibration point above. The participation deduction in section 965(c) was sized to deliver the headline rates against the corporate rate then in force, so an individual making no election applied that deduction against individual marginal rates, and the effective rate borne could exceed the 15.5 percent and 8 percent figures the IRS quotes. By how much depended on the size of the inclusion and where it landed in the individual's rate bands, so it is not a figure that can be stated generically.

The election also opens access to deemed paid foreign tax credits. IRS guidance for individuals explains that a shareholder of a CFC who elects under section 962 to be taxed at corporate rates on the section 951(a) amount may claim a credit for certain foreign taxes paid or accrued by the CFC, but only against the separately computed US tax liability with respect to that amount. For a UK trading company that had paid corporation tax on the profits sitting in its reserves, that is material rather than technical.

It is not free, and one point should be stated plainly rather than glossed. The election is made by including the statement required under Regulations section 1.962-2, and it carries a downstream cost: when the earnings are later actually distributed, amounts above the US tax previously paid under the election come back into income, producing a second layer of tax at shareholder level. It is also made on the return for the year of inclusion. Whether it can validly be made for the first time on a return filed many years late turns on the election's own procedural rules and on the facts, and should be researched for the specific case rather than assumed in either direction.

How does this interact with the Streamlined Foreign Offshore Procedures?

The Streamlined Foreign Offshore Procedures are built on a three-year frame: delinquent or amended returns for each of the most recent three years for which the return due date has passed, delinquent FBARs for each of the most recent six years, and a Form 14653 certifying non-residency and that the failures resulted from non-willful conduct.

Section 965 breaks that frame, and the IRS says so directly. Taxpayers who own specified foreign corporations and have a section 965(a) inclusion "must come into compliance for the section 965 transition tax in their submission and include the tax year in which the transition tax inclusion might occur (generally 2017 and/or 2018) even if that tax year would not be within the standard three-year lookback period."

It goes further than adding a year. The IRS states that "the lookback period for any submission to the streamlined filing compliance procedures involving SFCs with a section 965(a) inclusion in 2017 must include tax year 2017 and include all subsequent tax years." On the face of that, a submission made now on 2017 inclusion facts is not a three-year submission at all. It runs from 2017 forward to the present, which is a fundamentally different engagement in scope, in cost, in the number of Form 5471 filings required and in what is being certified. Anyone quoted for a three-year package on those facts has been quoted for the wrong job.

A careful reader will notice that the IRS frames the all subsequent tax years sentence around an inclusion in 2017, while the broader compliance statement refers to 2017 and/or 2018. The published wording does not spell out identical treatment for a 2018 inclusion. That asymmetry should be resolved on the particular facts rather than assumed to be symmetrical, and it is another practical reason to pin the inclusion year down before scoping anything.

One further instruction deserves more attention than it gets, because it concerns what you keep rather than what you pay. The IRS states that only amounts included in income by the taxpayer prior to the submission period and amounts included as part of the submission will constitute previously taxed earnings and profits. Leave the inclusion year outside the submission and those earnings never acquire previously taxed status, so the same profits can be taxed again when the company eventually distributes them. Capturing the year properly is not only about settling an old liability; it protects every future distribution out of those reserves.

Returns for the inclusion year and, on the IRS's stated position for a 2017 inclusion, every subsequent year rather than only the most recent three.
A Form 5471 for each year in that range in which a filing category was met, with Schedule J carrying the earnings and profits history.
The section 965 computation, as an IRC 965 Transition Tax Statement for a 2017 inclusion year or through the Form 965 series for 2018.
Full payment of the net section 965 tax liability, because the section 965(h) installment election is unavailable.
Six years of delinquent FBARs and a Form 14653 certification reaching the correct non-residency years.
The annotation "Streamlined Foreign Offshore Section 965" written in red on the first page of each return and information return.

Did a founder-scale UK company even produce an inclusion?

This should be the first question asked and it is almost always asked last. The transition tax was not a charge on turnover, on a single year's profit, or on the balance in the company's bank account. It fell on accumulated post-1986 deferred foreign income measured at the higher of the two 2017 dates. Where a UK owner-managed company followed the standard pattern of a modest salary topped up by dividends, profits were distributed as they arose and little accumulated. In a meaningful proportion of founder-scale cases the honest answer is that the inclusion is small, and in some it is nil.

That answer cannot be read off the statutory accounts. Earnings and profits is a US tax concept computed under US principles and does not equal the retained earnings line filed at Companies House. Depreciation and capital allowance differences, non-deductible items, the treatment of accrued UK corporation tax, provisions and timing differences all move the figure in both directions.

Deficits can reduce the number too. Section 965(b) provides that a United States shareholder with at least one deferred foreign income corporation and at least one earnings and profits deficit foreign corporation reduces the amount otherwise taken into account by the aggregate foreign earnings and profits deficit, allocated among the deferred foreign income corporations in proportion to the shareholder's pro rata share of their accumulated post-1986 deferred foreign income. Founders who ran a second company that lost money should establish whether that deficit is available before accepting a headline figure.

None of this removes the filing obligation. A nil inclusion does not excuse the Form 5471, does not start the assessment period, and does not close the year. The right outcome in a low-earnings case is a computed, documented and filed nil or near-nil position. The wrong outcome is an assumption that nothing was due, which leaves the year open indefinitely.

A worked scenario: a London consultancy owned since 2012

A US citizen moved to London in 2011 and incorporated a consultancy in March 2012, holding all the shares personally, with a Companies House accounting reference date of 31 March. She paid herself a small salary and took the balance of profits as dividends each year, retaining a working capital buffer. She filed UK returns throughout and nothing in the United States.

The first step is the inclusion year, and the shorthand answer is wrong for her. The company's last taxable year beginning before 1 January 2018 began on 1 April 2017 and ended on 31 March 2018. That year ends within her 2018 tax year, so the inclusion belongs on her 2018 return, her 2017 return carries no section 965 amount, and the reporting runs through the Form 965 series rather than the 2017 transition tax statement.

The second step is whether there is anything to include. Her accumulated post-1986 deferred foreign income must be computed under US principles at the higher of the two 2017 measurement dates. Because she distributed profits annually, the figure is driven by the retained buffer rather than by years of trading, and it is modest. To the extent that buffer sits in cash and cash equivalents it falls into the category the IRS describes as taxed at 15.5 percent, with any remainder at 8 percent, subject to the qualification that her actual effective rate depends on her own rate bands and on whether a section 962 election is available and beneficial.

The third step is payment, and there is no good news in it. She cannot elect under section 965(h) to pay across eight years, because the election had to be made by the due date of the 2018 return including extensions and, if she files through the streamlined procedures, because the IRS states the election is unavailable to taxpayers submitting delinquent returns under them. The liability is payable in full with the submission, with interest running from the original 2018 due date.

The fourth step is scope, and the fifth is what she gains. Her inclusion year is 2018, outside the standard three-year lookback, so this cannot be a straightforward three-year package, and she needs a Form 5471 for each year in the eventual range. In return, the amount included becomes previously taxed earnings and profits recorded on Schedule J, so those reserves can later be distributed to her without a second US income tax charge on the same profits, subject to foreign currency movements under section 986(c). Had the inclusion year been left out, the IRS position is that the amounts would not constitute previously taxed earnings and profits, and the same money would be exposed to tax twice.

How to work the transition tax year in a late catch-up

Fix the company's accounting reference date, identify its last taxable year beginning before 1 January 2018, and map that to the shareholder's inclusion year.
Reconstruct earnings and profits under US principles to the measurement dates, rather than adopting the Companies House retained earnings figure.
Split the accumulated post-1986 deferred foreign income between cash and cash equivalents and other assets, since the two are treated differently.
Establish whether an earnings and profits deficit in another foreign corporation of the same shareholder is available under section 965(b).
Model the charge with and without a section 962 election, and separately research whether that election is procedurally available this late.
Confirm the section 965(h) installment election is unavailable, then quantify the full liability plus interest before committing to a filing date.
Scope the disclosure from the inclusion year forward and prepare a Form 5471 for every year in that range in which a filing category was met.
Annotate the package as required and file the section 965 reporting appropriate to the inclusion year, so the amounts are recorded as previously taxed earnings and profits.

The Section 965 transition tax is an older provision and it is tempting to treat it as history. For anyone who has filed continuously since 2018 it effectively is. For a US person in the UK who owned a limited company through that period and never filed, it is a live, open, unassessed year sitting in the middle of the block that has to be fixed, carrying a liability that can no longer be spread and an information return that has kept the assessment period from ever beginning. It is also, in a good number of founder-scale cases, a smaller number than feared once the earnings and profits are properly computed.

At us-uktax.com we prepare US and UK tax returns and compliance filings for individuals, investors and business owners with cross-border company interests, including Form 5471 preparation, earnings and profits reconstruction and Streamlined Foreign Offshore submissions where a transition tax year falls inside the unfiled period. Where the inclusion year, the earnings and profits history or the availability of an election is genuinely uncertain on the published guidance, the right course is to establish the position on the specific facts and document it.