Missed Reporting a UK Pension on Form 8938
By US-UK Tax Advisors cross-border tax team · Last updated JUL 28, 2026

The UK pension is the asset most often left off Form 8938. What has to be reported, how a defined benefit entitlement is valued, and how missed years are fixed.
Key Takeaways
- Covers us expat tax for US-UK cross-border taxpayers
- Applies to US persons with UK ties and UK residents with US income
- Highlights the filing, reporting and tax-treaty points to check
- Get personalised advice before acting on your own facts
A UK pension is a specified foreign financial asset, so if you crossed your reporting threshold and left it off Form 8938, the return was incomplete and the remedy is a corrected filing rather than a resolution to do better next year. That answer holds whether the asset is a self-invested personal pension, an auto-enrolment workplace pot, an executive scheme from a former employer, or a deferred final salary entitlement you have not looked at in a decade. The omission also matters more than most filers assume, because under IRC section 6501(c)(8) an incomplete Form 8938 can hold the assessment period open for the whole income tax return long after the ordinary three years would have closed. This guide sets out exactly what must be reported, how each type of UK pension is valued, how the form reconciles with FinCEN Form 114, and how missed years are corrected.
Is a UK pension reportable on Form 8938?
Yes. The IRS states on its Form 8938 guidance pages that if you have an interest in a foreign pension plan or a foreign deferred compensation plan, you report that interest on Form 8938 where the value of your specified foreign financial assets exceeds the threshold that applies to you. A UK registered pension scheme sits squarely inside that description. It is not a foreign deposit or custodial account in the Part I sense, and it is not excluded because the plan is tax-favoured under UK law; the instructions treat an interest in a foreign pension plan as an asset held for investment that must be disclosed in its own right.
Three misconceptions drive most omissions. The first is that reporting follows taxation, so a pension producing no currently taxable income need not be listed. It does not follow: Form 8938 is an asset disclosure, and the instructions require reporting regardless of whether the asset generated income during the year. The second is that a treaty position removes the obligation. A position taken under the US-UK income tax treaty on the taxation of pension growth or distributions goes to the income question and does nothing to the disclosure question. The third is that the pension is already covered because the provider reports it to HMRC or because it appeared on the FBAR. Neither substitutes for Form 8938, which is filed with the income tax return and stands on its own statutory footing in IRC section 6038D.
Which UK schemes are caught, and which are not?
GOV.UK describes the UK landscape in terms of workplace pensions and personal and stakeholder pensions, all of which must be registered with HMRC to attract tax relief, with contributions relieved up to 100% of earnings and subject to an annual allowance of £60,000 a year. For US disclosure purposes the UK label matters less than the fact that there is a beneficial interest in a foreign arrangement. In practice the following are the interests that most often need to appear on a corrected filing.
- Auto-enrolment and other workplace defined contribution schemes, including multi-employer arrangements run by a large UK provider, where the member has an identifiable pot with a statement value.
- Self-invested personal pensions and other personal or stakeholder pensions held on a UK platform, whether actively managed by the member or left in default funds.
- Employer and executive schemes from current and former UK employers, including schemes that were closed to future accrual but retain a preserved member benefit.
- A deferred final salary or career-average defined benefit entitlement from a previous UK employer, where the member holds a promise of future income rather than a pot.
- Additional voluntary contribution arrangements sitting alongside a defined benefit scheme, which typically do have a pot value even where the main entitlement does not.
- Interests in UK employee share plans and unlisted UK company shares held outside a financial account, which are separately reportable and are frequently missed in the same years as the pension.
The clear exclusion is the UK State Pension. The IRS comparison of Form 8938 and FBAR requirements lists social-security-type program benefits provided by a foreign government as reportable on neither form, so entitlement built through National Insurance contributions is left out of both. That is a narrow carve-out and it does not extend to anything contracted through an employer or a commercial provider.
Which Form 8938 thresholds apply, and how are they tested?
The thresholds are set out in the Form 8938 instructions and on the IRS "Do I need to file Form 8938" page, and they differ sharply depending on whether the filer lives in the United States or abroad. This is the single most common source of error in UK-focused commentary, much of which quotes only the domestic figures to a UK-resident audience.
- Living in the United States, unmarried or married filing separately: more than $50,000 on the last day of the tax year, or more than $75,000 at any time during the year.
- Living in the United States, married filing jointly: more than $100,000 on the last day of the tax year, or more than $150,000 at any time during the year.
- Living abroad, unmarried or married filing separately: more than $200,000 on the last day of the tax year, or more than $300,000 at any time during the year.
- Living abroad, married filing jointly: more than $400,000 on the last day of the tax year, or more than $600,000 at any time during the year.
Two features of that grid are routinely misread. First, the test is disjunctive and applies to both a point-in-time and a peak measure: you file if the aggregate exceeds the year-end figure or exceeds the higher any-time-during-the-year figure. A UK-resident single filer whose aggregate specified foreign financial assets peaked at $310,000 in March and closed the year at $180,000 is a required filer on the second limb alone, and a pension that was sold down mid-year cannot be ignored because the December statement looks modest. Second, the higher abroad thresholds are not available simply because the filer has a London address. The IRS requires either bona fide residence in a foreign country for an uninterrupted period that includes the entire tax year, or physical presence in a foreign country for at least 330 full days during any period of 12 consecutive months ending in the tax year. A filer who moved to the UK mid-year and fails both tests for the year of arrival is measured against the domestic thresholds, which a single UK pension pot will usually breach on its own.
How do you value a UK defined contribution pot or SIPP?
For a defined contribution arrangement the exercise is documentary rather than actuarial. The instructions permit reliance on periodic account statements for the tax year to report an asset's maximum value unless you know or have reason to know, based on readily accessible information, that the statements do not reflect a reasonable estimate. The IRS also confirms that an appraisal by a third party is not necessary to reach a reasonable estimate of maximum value. For a SIPP or a platform-held workplace pot that means the provider's annual statement, quarterly valuations and online valuation history are sufficient primary evidence, and the highest of those figures is the reportable maximum. Where a member switched providers mid-year, both the ceding and receiving scheme statements are needed so that a transfer value is not double counted or dropped.
Conversion is then mechanical. The instructions direct filers to use the US Treasury Bureau of the Fiscal Service foreign currency exchange rate for the last day of the tax year unless a rate appearing on the financial account statement is used instead. Note the consequence for sterling assets: the maximum value is identified in pounds, then translated at a single year-end rate, so a pot that peaked in sterling in June is not converted at June's rate. Applying the wrong-year rate is one of the more common defects we find when reviewing a self-prepared Form 8938, and it propagates directly into the threshold test.
The defined benefit valuation problem, worked properly
A deferred final salary entitlement is where most preparers stall, because there is no pot and the scheme will not issue a market value. The instructions address exactly this situation. If you do not know or have reason to know, based on readily accessible information, the fair market value of your interest in a foreign pension plan or foreign deferred compensation plan during the tax year, the value to be included is the fair market value, determined as of the last day of the tax year, of the currency and other property distributed to you during the tax year. If you received no distributions during the tax year and do not know and have no reason to know the fair market value, you use a value of zero for the interest.
That is a rule-based outcome, not a shortcut, and it has two important limbs. The nil figure is only available where the value is genuinely not known and not reasonably knowable from readily accessible information. If the scheme has issued a cash equivalent transfer value, or the member has requested one in connection with a transfer, or the annual benefit statement carries a capitalised figure, then a value is readily accessible and the nil position is not open. Equally, once the member is in payment, the distributions received during the year become the reportable measure even if the underlying entitlement remains unquantified. A member with a deferred entitlement and an additional voluntary contribution pot alongside it will often report the pot at its statement value and the main entitlement at nil or at distributions, which looks inconsistent on the page and needs to be explained in the working file rather than left to inference.
The defensibility of the figure comes from the file, not the form. On a corrected filing we build a valuation memorandum that an examiner can follow without asking a question, and it contains the following.
- The scheme documentation establishing the nature of the entitlement: the member booklet or scheme rules extract showing the benefit is a promise of future income with no member account.
- The annual benefit statement for each year in scope, showing the projected pension figure and demonstrating the absence of any capitalised or surrender value on its face.
- A dated record of any request made to the scheme administrator for a cash equivalent transfer value, and the response, so that the availability or unavailability of a value is evidenced rather than asserted.
- A written note of the readily-accessible-information conclusion for each year, since the answer can change between years if the member later requests a transfer quotation.
- Confirmation of whether any distribution, including a pension commencement lump sum, was taken in the year, with the sterling amount and the Treasury year-end rate applied.
- A reconciliation showing how the entitlement was treated on FinCEN Form 114 for the same year, so that the two filings tell a consistent story.
The practical value of that file is asymmetric. It costs little to assemble contemporaneously and it is the difference between a reasonable cause position that reads as considered and one that reads as reconstructed after contact from the IRS.
Which part of Form 8938 does a UK pension go in?
The pension is not a Part I asset. The instructions state that you report your interest in the foreign pension plan or foreign deferred compensation plan in Part VI, and that you do not separately report the assets held by the plan. Part VI is the detailed schedule for each other foreign asset and asks for a description of the asset, identifying information, whether it was acquired or disposed of during the year, the maximum value during the tax year, the foreign currency in which it is denominated, the exchange rate and its source, and issuer or counterparty details. Part II is the corresponding summary and captures the number of assets reported in all Parts VI and their total maximum value. A single line in Part VI reading "beneficial interest in UK registered pension scheme, [provider]" with a maximum value, GBP as the denominating currency and the Treasury rate identified is the correct presentation. Listing the funds inside the SIPP as separate Part VI assets is a defect, not extra diligence, and it materially overstates the totals.
Part III then requires the tax items attributable to the assets reported in Parts V and VI, with the schedule or form on which each item was reported. For a pension in accumulation with no distribution, those fields will often be empty, and that is expected. What is not expected is a Part III showing a distribution while the income tax return shows none, which is precisely the kind of internal inconsistency that draws attention.
How does Form 8938 interact with FinCEN Form 114?
They are two separate filings with different statutory homes, different thresholds, different channels and different deadlines, and a UK pension can be reportable on both. The FBAR is required where the aggregate value of foreign financial accounts exceeded $10,000 at any time during the calendar year. It is due 15 April with an automatic extension to 15 October, must be e-filed through FinCEN's BSA E-Filing System, and is expressly not filed with the federal income tax return. Form 8938, by contrast, attaches to the income tax return and follows that return's deadlines and extensions. The FBAR's narrow account exceptions are drawn by reference to specified domestic arrangements and do not reach a UK registered pension scheme.
The threshold gap is why the two filings so often diverge. A US person in London with a £60,000 SIPP and a current account is almost certainly an FBAR filer and, on the abroad thresholds, may well not be a Form 8938 filer at all. The reverse case is more dangerous: a filer with a large defined benefit entitlement and modest cash may be well over the Form 8938 threshold while presenting very little on the FBAR. Where a defined contribution pot or SIPP has a determinable balance, it is a foreign financial account for FBAR purposes and reported at its maximum value. Where a defined benefit entitlement has no account and no determinable value, FinCEN's line item instructions provide the mechanism: complete the account fields and check Item 15a, "Amount unknown", rather than leaving the field blank or omitting the entry.
A reconciliation checklist for a UK pension and share-plan portfolio
Because the two forms are prepared from different measures, a filer who reported the pension on the FBAR but not on Form 8938, or the reverse, usually has a mechanical cause rather than a deliberate position. The reconciliation below is the control we run for every UK client file, and it catches the divergences before they become two years of corrections.
- Build one asset register covering every UK holding, then mark each row separately for whether it is reportable on the FBAR and whether it is reportable on Form 8938, because the answers legitimately differ.
- Confirm the measurement period: the FBAR is tested over the calendar year, Form 8938 over the tax year, which matters for any filer with a short or non-calendar US tax year.
- Record maximum value in sterling once, then apply the correct rate for each form and note that the two forms take their rates from different instruction sets, so the dollar figures may not tie exactly.
- Check the asset classes that appear on one form only: unlisted UK company shares and share-plan holdings outside an account, and UK partnership and fund interests, are Form 8938 assets but not FBAR accounts, while an account at a foreign branch of a US institution is an FBAR account but not a Form 8938 asset.
- Cross-check the pension line: if the scheme appears at a value on the FBAR, a nil Form 8938 value for the same year is contradictory and must be corrected or explained.
- Verify the aggregate threshold arithmetic on both forms after conversion, not before, since a filer can sit under the sterling equivalent and over the dollar threshold.
- Reconcile Part III of Form 8938 to the income tax return line by line, and reconcile any pension distribution to the FBAR withdrawal history for the same account.
- Confirm the filing evidence for both: the BSA E-Filing acknowledgement for each FBAR year, and the e-file acceptance or postmark for each return carrying a Form 8938.
Does duplicative reporting relief excuse the pension?
Only rarely. Part IV of Form 8938 gives relief for excepted specified foreign financial assets: where an asset was reported on a timely filed Form 3520, Form 3520-A, Form 5471, Form 8621 or Form 8865 for the same tax year, it need not be reported again on Form 8938, though the number of each such form filed must be entered in Part IV. The relief is asset-specific and form-specific. A UK pension is not ordinarily an asset reported on any of those enumerated returns, so the exception does not reach it, and the fact that a filer submitted a stack of other international forms does not cure the omission. Two related traps follow. Where a UK company interest is reported on Form 5471, the relief covers that interest only and not the pension sitting beside it. And where a fund holding inside a SIPP would otherwise engage Form 8621, the correct Form 8938 treatment is still a single Part VI line for the pension interest with the plan's underlying assets not separately reported, so Part IV relief is not the operative mechanism there either.
The penalties, and the IRC 6501(c)(8) problem behind them
The Form 8938 instructions set out a penalty of $10,000 for failure to file, plus $10,000 for each 30-day period of continued failure beginning after the IRS notifies the filer, subject to a maximum additional penalty of $50,000. Where an underpayment is attributable to a transaction involving an undisclosed specified foreign financial asset, a penalty of 40% of that underpayment can apply. For married taxpayers filing jointly the failure-to-file penalties apply as though the spouses were a single person and liability is joint and several. No penalty applies where the failure is due to reasonable cause and not to willful neglect, but the instructions are explicit that the fact a foreign jurisdiction would impose a civil or criminal penalty for disclosure is not reasonable cause. There is also a presumption rule: a filer who does not produce sufficient value information on request is presumed to hold specified foreign financial assets exceeding the reporting threshold.
For a wealthy reader the penalty figures are not the main exposure. The assessment period is. The instructions state that if you fail to file Form 8938, or fail to report a specified foreign financial asset you were required to report, the statute of limitations for the tax year may remain open for all or part of your income tax return until three years after the date on which you file Form 8938. Read that carefully: the suspension is not confined to the pension. One omitted pension line can leave the whole return open, and it stays open until the correct Form 8938 is actually filed and then for three years after. A filer with a company disposal, carried interest allocations, a large share-plan vesting or an aggressive foreign tax credit position in the same year has left every one of those items available for examination years after the ordinary period would have expired. That is the real cost of the omission, and it is why we treat a missing pension line as a matter to close out rather than to monitor.
A second extension can run alongside it. Where gross income relating to one or more specified foreign financial assets is omitted from the return and the amount omitted exceeds $5,000, the instructions confirm tax for that year can be assessed at any time within six years after the return was filed. A filer who took a pension commencement lump sum or drawdown payments and left the income off has both extensions in play at once.
Worked example: a SIPP and a deferred final salary entitlement
Take a US citizen who is a managing director in the M&A team of a London investment bank, resident in the UK throughout, filing as single. She holds a SIPP with a UK platform that reached roughly £1.1 million during the year, a current workplace defined contribution pot of about £480,000, a deferred final salary entitlement from a UK employer she left in 2011, a sterling current account, and unlisted shares in a UK advisory business she co-founded. Her returns for four years reported the current account on the FBAR and nothing on Form 8938, on the view that the pensions were UK tax-relieved and therefore not US reportable.
On correction, the position is straightforward but wide. She meets the bona fide residence test, so the abroad thresholds apply: more than $200,000 at year end or more than $300,000 at any time. The SIPP alone converts to a figure comfortably above both at any plausible sterling rate, so she was a required Form 8938 filer in every year in scope. The SIPP goes on one Part VI line at its maximum value, with the underlying funds not separately listed. The workplace pot goes on a second Part VI line. The unlisted shares go on a third, because foreign stock not held in a financial account is a Form 8938 asset even though it is not an FBAR account. The deferred entitlement is the judgement call: she took no distributions, and if no cash equivalent transfer value was issued or requested in a given year, the instructions permit a nil value for that year with the reasoning documented. If she obtained a transfer quotation in one of those years in connection with reviewing the benefit, that year's value was readily accessible and the nil position is not available for it.
The FBAR side is corrected in parallel and does not match. The SIPP and the workplace pot are reported as accounts at their maximum values; the current account is already there; the unlisted shares do not appear at all; and the deferred entitlement, if reported, carries Item 15a checked. Because Form 8938 was never filed for those years, none of them had closed, so the correction is not limited by the ordinary assessment period and the equity and carried interest items reported in the same years remain open until the corrected filings run their three years.
How missed Form 8938 years get corrected
The route depends on whether income was also omitted and on whether the filer has already been contacted. The IRS states that where Form 8938 was omitted when the income tax return was filed, the filer should file Form 1040-X with the Form 8938 attached. That is the base mechanism, and the programmes below sit on top of it.
- Amended returns with the Form 8938 attached, where the disclosure is the only defect and there is no unreported income. Each year is a separate Form 1040-X carrying the Form 8938 for that year.
- The delinquent international information return submission procedures, available where the filer is not under civil examination or criminal investigation and has not already been contacted by the IRS about the delinquent returns. Most delinquent international information returns are attached to an amended income tax return, and a statement of the facts establishing reasonable cause can be included with the submission.
- The Streamlined Foreign Offshore Procedures, where the non-residency requirement is met and the conduct was non-willful, which the IRS defines as negligence, inadvertence or mistake, or a good faith misunderstanding of the law. The submission comprises three years of delinquent or amended returns, six years of delinquent FBARs and a Form 14653 certification, and eligible filers are not subject to failure-to-file, failure-to-pay, accuracy-related, information return or FBAR penalties.
- Delinquent FBAR submission through the BSA E-Filing System for any FBAR years that were also missed, filed separately from the income tax filings and never attached to them.
Sequencing matters when several years are open. Because the assessment period stays suspended until the Form 8938 is filed, there is no advantage in staging the years and real cost in doing so. We work out the full population of affected years first, decide the route once for the whole population, and file in a single coordinated submission so that the three-year clock starts on every year at the same time. Mixing routes across years in the same fact pattern invites questions, and filing an amended return for one year while leaving an earlier year unaddressed leaves the earlier year open indefinitely.
How we prepare a corrected Form 8938 filing
We prepare and file these corrections as a compliance engagement with a defined output: complete Form 8938 schedules for every affected year, a reconciled FinCEN Form 114 for the same years, and a working file that supports every figure. The sequence is fixed. We establish the residence position for each year to fix the correct threshold, build the sterling asset register from provider and platform records, resolve the valuation of each pension interest under the instructions, apply the Treasury year-end rate for the correct year, then run the Form 8938 to FBAR reconciliation before anything is filed. Where a defined benefit entitlement is in the population we prepare the valuation memorandum described above as part of the deliverable rather than as an optional extra.
Only then do we select the route, draft any reasonable cause or Form 14653 narrative from the documented facts rather than from generalities, and file the years together. The objective throughout is a filing that closes the exposure and starts the assessment period running, supported by a record that answers the examiner's questions before they are asked. If you have identified a UK pension that has not been reported, the position is fixable, and it is considerably cheaper to fix before the IRS raises it.
Related reading and tools
- US Tax Services & IRS Compliance
- UK Tax Services
- IRS Streamlined Filing
- UK Income Tax Calculator
- US Federal Income Tax Calculator
Every situation is different. Book a cross-border tax consultation to discuss how these rules apply to you.
Authoritative sources
IRS — Streamlined Filing Compliance Procedures
FinCEN — Report of Foreign Bank and Financial Accounts (FBAR)
GOV.UK — Tax on foreign income
IRS — Foreign Earned Income Exclusion



