Do I still file Form 5471 in the year I stop being a US person?

Almost always, yes. The filer categories in the IRS Instructions for Form 5471 are built around dates rather than whole-year residence. If you were a US person while holding ten percent or more of a foreign corporation at any point in its annual accounting period, the year is in scope. What changes is the category and the schedule set, not whether you file. The return is attached to your income tax return for that year and filed by its due date including extensions, which in a departure year is normally a dual-status return.

Which filer category applies if I emigrate before the company's year end?

Typically Category 4 rather than Category 5. Category 5 requires that you owned the stock on the last day in the year on which the foreign corporation was a controlled foreign corporation, and a mid-year departure by a sole US owner means the company stopped being one before that date. Category 4 catches a US person who had control, meaning more than fifty percent of vote or value at any time during their tax year, during the foreign corporation's annual accounting period. If the departure involved a share transfer, Category 3 may apply as well.

Does a mid-year departure reduce the income I have to include?

It limits the measurement window rather than removing the inclusion. Section 951(a)(2) allocates your pro rata share by reference to the period during which you owned the stock, you were a US shareholder, and the corporation was a controlled foreign corporation. Following the One Big Beautiful Bill Act, the former requirement to hold stock on the last day of the year no longer applies to subpart F inclusions, and proposed regulations under REG-115646-25 apply a daily proration approach for foreign corporation tax years beginning after 31 December 2025. Section 956 inclusions still require year-end ownership.

What if my UK company has a 31 March year end rather than 31 December?

You report the foreign corporation's annual accounting period ending with or within your US tax year, so a 31 March UK year end is reported on the US return for the calendar year in which 31 March falls. This routinely means the emigration date sits outside the accounting period being reported, which changes the analysis for that year and pushes the split-year computation into the following filing. GOV.UK confirms a Corporation Tax accounting period cannot exceed twelve months, and that accounts covering a longer span require two Company Tax Returns.

I handed my green card back after moving to the UK. When did my filing obligation stop?

Not on the date you moved. IRS guidance on residency starting and ending dates is explicit that tax residency for a lawful permanent resident continues until the green card is voluntarily surrendered, administratively revoked by USCIS, or judicially revoked by a federal court. Until one of those happens you remain a US person and remain within sections 6038 and 6046. Claiming UK residence under the treaty tie-breaker relieves income tax but does not end information return obligations.

What happens if earlier Forms 5471 were never filed before I expatriate?

Remediate before signing Form 8854. Section 6038 carries a penalty of 10,000 dollars for each annual accounting period of each foreign corporation, with an additional 10,000 dollars for each 30-day period after 90 days from IRS notice up to 50,000 dollars per failure, plus a foreign tax credit reduction. Section 6501(c)(8) also keeps the assessment period open until three years after the information is furnished. Routes include the Streamlined Foreign Offshore Procedures where the conduct was non-willful and the non-residency conditions are met, or late filing with a properly evidenced reasonable cause statement.

Form 5471 When the US Owner Emigrates Mid-Year

Form 5471 When the US Owner Emigrates Mid-Year is answered by one principle: the filing obligation is tested at specific moments inside the foreign corporation's accounting period, not across the calendar year as a whole. If you were a US person for even part of the year and held ten percent or more of a UK limited company, you will almost always still file Form 5471 for that year. What the departure changes is which category you file under, which schedules you complete, and how much of the company's income is pulled into your US return.

The mistake we see most often in departure-year files is the assumption that ceasing to be a US person part-way through the year switches the obligation off. It does not. The Code tests US person status and controlled foreign corporation status day by day, and the IRS Instructions for Form 5471 build the filer categories around dates, not a whole-year concept of residence.

What Does Form 5471 When the US Owner Emigrates Mid-Year Actually Change?

Form 5471 is an information return filed under sections 6038 and 6046 by US persons with interests in foreign corporations. It is not a standalone filing: the IRS instructions state that you attach Form 5471 to your income tax return and file both by the due date, including extensions, for that return. If your final US return is a dual-status return, the Form 5471 rides on it, and the schedules must be consistent with the period during which you were a US person.

A mid-year emigration changes four things at once: the length of the window during which you were a US shareholder, whether the UK company was a controlled foreign corporation at all and for how long, your filer category, and the size of your income inclusion, because the pro rata share rules in section 951(a)(2) are period-based.

When Does US Person Status Actually End?

The date matters more than anything else in the file, and it is not the date the removal van left. The rule differs depending on how you held US status.

US citizens. Status ends on the expatriation date, which IRS expatriation tax guidance defines as the earliest of renouncing before a diplomatic or consular officer, signing a voluntary relinquishment statement furnished to the State Department, the Department of State issuing a certificate of loss of nationality, or a US court cancelling a naturalised citizen's certificate.
Lawful permanent residents. IRS guidance on residency starting and ending dates confirms that tax residency continues until the green card is voluntarily surrendered, administratively revoked by USCIS, or judicially revoked by a federal court. A green card holder who moves to London and leaves the card in a drawer is still a Form 5471 filer.
Substantial presence test residents. The residency ending date is generally 31 December of the year of departure. It moves to the last day of physical presence in the United States only if, for the remainder of the year, your tax home is in a foreign country and you maintain a closer connection there. The IRS requires a statement to establish that date.
Treaty tie-breaker cases. A person treated as UK resident under the tie-breaker article does not cease to be a US person for information reporting. This is the most expensive misunderstanding in the area: the treaty relieves income tax, but it switches off neither section 6038 nor section 6046, and it does not touch the FBAR.

Which Category of Filer Applies in the Departure Year?

A filer category is the IRS classification that determines which parts of Form 5471 you complete. In a mid-year departure the category often shifts from the one you filed in earlier years, and it is entirely possible to fall into two categories at once.

Category 5. A person who was a US shareholder that owned stock in a foreign corporation that was a controlled foreign corporation at any time during the foreign corporation's tax year ending with or within the US shareholder's tax year, and who owned that stock on the last day in that year on which the corporation was a controlled foreign corporation. The last-day element is where mid-year departures break.
Category 4. A US person who had control of a foreign corporation during its annual accounting period. Control means more than fifty percent of voting power or of total value, held at any time during that person's tax year. Because the test is at any time, a majority owner who ceases to be a US person in September is still a Category 4 filer.
Category 3. Covers acquisitions and dispositions, and expressly includes a person who becomes a US person while meeting the ten percent ownership requirement, and a US person who disposes of enough stock to fall below ten percent. A departure with a share transfer usually adds Category 3.
Category 2. An officer or director of a foreign corporation in which a US person acquired stock meeting the ten percent threshold, or an additional ten percent. Directors of UK companies are caught more often than they expect, because the trigger is somebody else's acquisition.

A departure therefore rarely removes you from Form 5471. It reshuffles you. An owner of sixty percent of a UK company who ceases to be a US person in September normally loses Category 5 and retains Category 4, and the schedule set changes with it.

How Is the CFC Test Applied to Only Part of a Year?

Section 957(a) defines a controlled foreign corporation as any foreign corporation where more than fifty percent of total combined voting power or total value of the stock is owned, within the meaning of section 958(a) or considered owned under section 958(b), by United States shareholders on any day during the taxable year of that foreign corporation. Section 951(b) defines a United States shareholder as a US person owning ten percent or more of combined voting power or ten percent or more of total value.

Read together, those definitions give the mid-year answer: the test is a daily one. A UK company owned outright by a US citizen who expatriates on 14 September was a controlled foreign corporation until that date and ceased to be one when the owner's US status ended. It was a controlled foreign corporation on some days of its accounting period, which brings the year into scope, and it was not one on the final day, which dislodges Category 5.

How the 2026 Pro Rata Share Rules Changed the Mid-Year Exit

This is the part most published guidance has not caught up with. Under prior law, section 951(a)(1)(A) required a US shareholder to own stock on the last day of the year on which the corporation was a controlled foreign corporation in order to pick up a subpart F inclusion, so a well-timed mid-year exit could leave a departing shareholder with an information return to file but no inclusion.

That last-day requirement for subpart F inclusions was eliminated by the One Big Beautiful Bill Act. A US shareholder who owns stock on any day during the controlled foreign corporation's year now takes a pro rata share whether or not they hold on the final day. Section 951(a)(2) allocates that share by reference to the portion of income attributable to the stock owned by the shareholder and to any period of the year during which the shareholder owned the stock, the shareholder was a US shareholder, and the corporation was a controlled foreign corporation.

Proposed regulations issued under REG-115646-25 implement this with a daily proration approach and go further, providing for a mandatory closing of the tax year on a status change event, meaning a corporation becoming or ceasing to be a controlled foreign corporation, and an elective closing where an unrelated-party transaction produces a significant ownership variance. They are proposed to apply to tax years of foreign corporations beginning after 31 December 2025, and taxpayers may rely on them before finalisation if they apply them consistently and in full. The package also modifies the information reporting regulations under section 6038, the authority behind Form 5471 itself.

Two consequences follow. An emigration date is now a computational date, not merely a categorisation date, because a status change event forces a year close and a split computation. And the section 956 inclusion is the exception that still behaves the old way: section 951(a)(1)(B) continues to require ownership on the last day in the year on which the corporation is a controlled foreign corporation, so investments in United States property remain a year-end test.

Which Form 5471 Schedules Turn on Ownership Dates?

Balance sheet and income statement schedules describe the company. The ones that describe you are where the departure year is won or lost.

Schedule B Parts I and II. Direct and indirect shareholder listings, which must reflect the ownership position across the accounting period rather than a snapshot taken after you left.
Schedule O. Part I is completed by Category 2 filers and Part II by Category 3 filers, capturing organisation, reorganisation, acquisition and disposition of stock with dates. Where the emigration comes with a share transfer to a spouse, a co-founder or a holding company, Part II records it.
Schedules I and I-1. Shareholder income from the foreign corporation and the information for net CFC tested income, now carrying the daily proration for the period during which you were a US shareholder of a controlled foreign corporation.
Schedules J and P. Accumulated and previously taxed earnings and profits, with Schedule P reported by the shareholder. Departure does not erase a previously taxed earnings account, and a mid-year exit still needs a defensible closing position.
Schedules E and E-1. Taxes paid or accrued and the movement in taxes on previously taxed earnings. UK corporation tax paid by the company sits here.
Schedule M. Related party transactions, completed by Category 4 filers. A departing majority owner moving onto Category 4 may complete it for the first time.
Schedules Q and R. Income by controlled foreign corporation income group, and distributions. A dividend paid before or after the emigration date is characterised very differently, and Schedule R is where the timing shows.

How Do Attribution and Constructive Ownership Affect a Departure?

Ownership here is not limited to shares in your own name. Section 958(a) covers direct and indirect ownership through foreign entities, and section 958(b) applies the constructive ownership rules of section 318 subject to statutory modifications. Family attribution means shares held by a spouse, children, grandchildren or parents can count toward your ten percent or your fifty percent, which routinely turns a minority holder into a controlling one on paper. Attribution does not stop when you move to the United Kingdom, nor when shares pass to a family member who remains a US person.

The One Big Beautiful Bill Act restored section 958(b)(4) for tax years beginning after 31 December 2025, so stock owned by a foreign person is no longer attributed downward to a US person when testing controlled foreign corporation status. For a departing owner whose remaining co-shareholders are non-US persons this matters, because many structures dragged into controlled foreign corporation status by downward attribution after 2017 are no longer caught. Congress paired the restoration with new section 951B, a parallel regime for foreign-controlled US shareholders and foreign controlled foreign corporations using a more than fifty percent threshold rather than the usual ten percent. A departure-year analysis that skips section 951B is incomplete.

Worked Scenario: A UK Trading Company and a September Departure

Take an illustrative case. A US citizen owns one hundred percent of a UK limited company providing corporate finance consultancy, with a 31 December accounting reference date. The owner has lived in London for years, renounces US citizenship on 14 September, and receives a certificate of loss of nationality. Profit for the calendar year is 900,000 pounds, earned broadly evenly, and no dividend is paid.

The company was a controlled foreign corporation from 1 January to 14 September, 257 days of 365, and was not one on 31 December because its sole shareholder was by then not a US person. The owner is therefore not a Category 5 filer, having not owned the stock on the last day on which the company was a controlled foreign corporation, but is a Category 4 filer, because control existed during the annual accounting period. Form 5471 is filed with the dual-status return, with the Category 4 schedule set.

On the income side, daily proration allocates tested income and any subpart F income to the 257-day period during which all three conditions in section 951(a)(2) were met, so roughly seventy percent of the year's result falls inside the US measurement window. Under the pre-2026 rules the same facts could have produced no inclusion at all. There is no section 956 issue on these facts, and UK corporation tax paid on the profits is reported on Schedule E.

How Do UK Accounting Periods Line Up With the US Filing Year?

Form 5471 is prepared for the foreign corporation's annual accounting period ending with or within your US tax year, and UK companies do not always cooperate. GOV.UK guidance states that a Corporation Tax accounting period is the time covered by the Company Tax Return, that it cannot be longer than twelve months, and that it is normally the same as the financial year covered by the annual accounts. Where a set of accounts covers more than twelve months, two Company Tax Returns must be filed.

Three alignment problems recur. A UK company with a 31 March year end produces a Form 5471 for the period ending 31 March, sitting inside a US calendar year that ends nine months later, so the emigration date may fall outside the period being reported. A company that shortens or extends its accounting reference date around the emigration generates two UK returns and forces a decision about which period ends with or within the US year. And the data arrives late: the Company Tax Return is due twelve months after the end of the accounting period, and Corporation Tax is usually payable nine months and one day after that date.

The remedy is procedural. Extend the US return, agree the UK statutory accounts and the corporation tax computation first, then bridge them to the US measurement basis used on Schedules C and F. Do not build a Form 5471 on management accounts when final statutory figures will follow.

What If Prior Years Were Missed?

Departure is when historic gaps surface, because someone finally reads the compliance record end to end. The IRS instructions confirm a penalty of 10,000 dollars for each annual accounting period of each foreign corporation for failure to furnish the information required by section 6038(a) within the prescribed time. If the failure continues more than 90 days after the IRS mails notice, an additional 10,000 dollars per foreign corporation applies for each 30-day period or fraction of one, limited to 50,000 dollars for each failure, alongside a ten percent reduction of the foreign taxes available for credit under sections 901 and 960 and a further five percent for each three-month period the failure continues. Section 6046 carries its own 10,000 dollar penalty for each reportable transaction on the same mechanic.

Behind the penalties sits a quieter problem. Section 6501(c)(8) provides that the assessment period for tax with respect to any return, event or period to which the information relates does not expire before three years after the date the required information is furnished. A missing Form 5471 therefore holds the whole return open, which is precisely the wrong condition in which to certify five years of compliance on Form 8854.

Streamlined Foreign Offshore Procedures. Available where the conduct was non-willful and, for US citizens and lawful permanent residents, where there was no US abode and the individual was physically outside the United States for at least 330 full days in any one of the three most recent years. The package covers three years of returns and six years of FBARs, certified on Form 14653, with delinquent Forms 3520, 5471 and 8938 submitted alongside. The IRS states that compliant submissions will not be subject to failure-to-file and failure-to-pay penalties, accuracy-related penalties, information return penalties, or FBAR penalties.
Late filing with a reasonable cause statement. Where income and tax were correctly reported and only the information return was missed, the delinquent Form 5471 is filed with a specific, evidenced reasonable cause statement. Relief is not automatic, and generic narratives attract scrutiny. The IRS has been reorganising its published delinquent-submission guidance, so confirm the current route first.
Rev. Proc. 92-70 summary filing. Where the UK company genuinely had no activity, the dormant foreign corporation procedure permits a summary filing of page 1 of Form 5471 carrying the legend showing it is filed pursuant to Rev. Proc. 92-70. It is a reduced filing, not an exemption, and the conditions are strict.
Amended returns for open years. Where the position also affects income, remediation must be paired with amended returns rather than filed in isolation, so inclusion, credit and previously taxed earnings positions stay consistent.

Expatriation, Form 8854 and the Five-Year Certification

For a citizen or a long-term resident, meaning someone who held a green card in at least eight of the last fifteen years, the departure year also brings Form 8854. IRS guidance requires certification that you have complied with all US federal tax obligations for the five years preceding expatriation, and a failure to certify makes you a covered expatriate regardless of your numbers. The other two tests are a net worth of 2 million dollars or more on the date of expatriation, and an average annual net income tax for the five preceding years above an annually indexed threshold that stood at 206,000 dollars for 2025. A 10,000 dollar penalty may be imposed for failure to file Form 8854 when required.

Form 5471 is not a side issue in that certification. It is evidence for it. A person with five clean years of Forms 5471, consistent Schedule J and Schedule P positions and matching FBARs can certify with confidence. A person with gaps cannot, and the covered expatriate consequences of a failed certification usually cost far more than the underlying penalties. Departure-year work should start at least one full filing cycle before the expatriating act.

The wider information return set moves with the same dates. FinCEN Form 114 is required where the aggregate value of foreign financial accounts exceeded 10,000 dollars at any time during the calendar year, is due 15 April with an automatic extension to 15 October, and is filed through the BSA E-Filing System rather than with the tax return. It must tell the same story about the UK company's bank accounts as the Form 5471 does.

A Practical Sequence for the Departure Year

Fix the date first, on documentary evidence, and file the statement the IRS requires where a termination date under the substantial presence test is claimed.
Rebuild the ownership timeline. Chart direct, indirect and constructive ownership day by day across the accounting period, then test section 957(a) status on each relevant date.
Determine the category before touching a schedule. Category 4 and Category 3 frequently replace Category 5 in an exit year, and the schedule set follows the category, not last year's file.
Close the UK numbers before the US filing, then reconcile them to the US measurement basis rather than transposing UK figures directly.
Compute the pro rata share daily for the period during which all three section 951(a)(2) conditions were satisfied, and check whether a mandatory year close applies.
Clear the history before the certification. Remediation of prior Forms 5471 should be filed before Form 8854 is signed.

A mid-year emigration has a short window in which it can be handled cleanly. The forms are the same forms, but the dates do all the work, and the 2026 pro rata share regime has made those dates arithmetically decisive rather than merely administrative. Getting the departure-year Form 5471 right is what allows every later year to be simple.