Do I need to file an FBAR if my UK wealth manager has full discretion over my portfolio?

Yes. The FBAR depends on financial interest, not on who makes the investment decisions. Under the FinCEN filing instructions, you have a financial interest where you are the owner of record or holder of legal title, and a custodian or nominee holding securities for your benefit is acting on your behalf. The discretionary mandate gives the manager authority to trade, but the account and its value remain yours. If the aggregate value of your foreign accounts exceeds $10,000 at any time in the calendar year, each account, including separate cash sub-accounts, must be reported with its maximum value.

Are UK OEICs and investment company shares PFICs for a US citizen?

Generally, yes. A PFIC is a foreign corporation where at least 75 percent of income is passive or at least 50 percent of assets are passive, and a pooled fund is passive by design. OEICs are companies, UK unit-based pooled funds and European UCITS funds are generally classified as corporations for US tax purposes, and listed investment companies are UK public companies holding portfolios. Each one generally needs its own Form 8621. HMRC reporting fund status does not change the answer, because it is a UK concept that has no bearing on US PFIC classification.

Can I use my UK wealth manager's year-end tax pack for my US return?

Not directly. The UK tax pack covers 6 April to 5 April, reports in sterling and calculates gains under UK share pooling and matching rules. A US return needs calendar-year figures in dollars, with cost converted at the purchase-date rate and proceeds at the sale-date rate, lot by lot. The UK pack may also leave out gains that are exempt in the UK but taxable in the US, such as gilts. It is a useful cross-check, but the US figures must be rebuilt from the full transaction history and contract notes.

What happens if I filed US returns but never reported my UK investment portfolio?

The returns are incomplete rather than missing. You may have underreported dividends, interest and gains, and you will have omitted Form 8938, the FBARs and any Form 8621 filings for pooled funds. If you live in the UK and the failure was non-willful, the Streamlined Foreign Offshore Procedures allow amended returns for the most recent three years and FBARs for six years. The Instructions for Form 8938 note that failing to file the form can keep the assessment period open, so correcting the position is safer than leaving it.

How many Form 8621s will I need for a discretionary portfolio?

Usually one for each PFIC, for each year. The Instructions for Form 8621 require a separate form for each PFIC held directly or indirectly. The exception for PFIC holdings worth $25,000 or less, or $50,000 on a joint return, only applies where there is no excess distribution and no gain, so it rarely helps a high-value portfolio. A mandate holding 15 pooled funds typically means 15 forms a year, plus forms for any funds sold during the year. Across a three-year catch-up, the form count grows quickly.

Can I deduct my UK wealth manager's fees on my US tax return?

Generally not as an individual. Investment management fees used to be miscellaneous itemized deductions subject to a 2 percent floor, and IRS Publication 529 confirms those deductions are not available for current years, with 2025 federal legislation keeping them off the table on a lasting basis. Commissions and stamp duty on individual trades are handled differently: they adjust the cost or proceeds of each trade rather than being claimed as a deduction. Fees charged inside pooled funds simply reduce the fund's return and are not separately deductible.

Missed US Tax Returns with a UK Discretionary Portfolio

Missed US tax returns are fixable for a US person whose wealth sits in a UK discretionary portfolio, but the portfolio is usually the hardest part of the catch-up. The account is a foreign financial account for FBAR and Form 8938 purposes even though the wealth manager, not you, chooses the investments. The UK and European pooled funds inside it are generally passive foreign investment companies (PFICs) needing a separate Form 8621 each. And a discretionary mandate can generate hundreds of sales a year that must be rebuilt in US dollars on a calendar-year basis, from paperwork produced for HMRC on a 6 April to 5 April year. If the failure was non-willful and you live in the UK, the IRS Streamlined Foreign Offshore Procedures generally let you file three years of returns and six years of FBARs without the standard penalties.

Why do missed US tax returns become harder with a UK discretionary portfolio?

A discretionary fund management (DFM) portfolio is an investment account in which a regulated UK wealth manager buys and sells on your behalf within an agreed mandate, without seeking approval before each trade. The difficulty is that the United States taxes its citizens on worldwide income wherever they live. IRS.gov is explicit that US citizens and resident aliens abroad must report worldwide income, and the discretionary structure changes nothing about that.

A DFM portfolio stacks three US compliance layers: information reporting through the FBAR and Form 8938; ordinary income tax on dividends, interest and gains, converted into dollars; and the PFIC regime for any non-US pooled fund, with its own forms and computation. The paperwork a wealth manager produces is built for HMRC, in sterling and on the UK tax year, so almost none of it can be copied onto a US return. That turns a routine late filing into a reconstruction project.

Is a discretionary managed account a financial account for the FBAR?

Yes. The FBAR, formally FinCEN Form 114, covers any financial account outside the United States in which a US person has a financial interest or signature authority, where the aggregate value of all such accounts exceeds $10,000 at any time during the calendar year. IRS.gov lists brokerage and securities accounts among the accounts that must be reported, and the FinCEN filing instructions define securities accounts and other financial accounts as reportable. A DFM portfolio is a securities account held with a UK custodian, so it falls squarely within scope.

The manager's discretion does not remove your financial interest. Under the FinCEN instructions, a US person has a financial interest in an account where he or she is the owner of record or holder of legal title. Where a custodian or nominee company holds the securities in its own name for your benefit, it is acting on your behalf, and the account is still yours. The manager holds authority to trade; you hold the financial interest. The FBAR is filed through the FinCEN BSA E-Filing System, not with the tax return, and IRS.gov gives the due date as 15 April, with an automatic extension to 15 October.

How do the cash sleeve and multi-currency sub-accounts affect FBAR maximum value?

The FBAR asks for the maximum value of each account during the calendar year, not the year-end value. FinCEN defines maximum value as a reasonable approximation of the greatest value during the year, and periodic account statements may be relied on where they fairly reflect that maximum. In a DFM portfolio, the cash sleeve is where maximum value errors usually happen. Most discretionary arrangements separate a custody account for securities from a cash account, and the cash account is often split into sterling, dollar and euro sub-accounts, sometimes carrying different account numbers or held with a separate deposit-taking bank.

Map every account number the custodian and any cash bank holds for you. If sub-accounts carry separate numbers, treat each as potentially a separate account and confirm the structure with the manager in writing.
Find the peak for each account. The cash sleeve often peaks straight after a large subscription, such as a bonus paid in, or after a sell-down before reinvestment. Month-end valuations can miss a mid-month peak, so use the cash ledger.
Do not net the cash sleeve against the securities account if they are separate accounts. Each has its own maximum.
Convert each maximum using the Treasury Reporting Rates of Exchange for the last day of the calendar year, the rule IRS.gov gives for the FBAR, even where the peak occurred months earlier.
Include accounts opened or closed during the year, such as a legacy account closed when the portfolio moved custodian.

What is Form 8938 and what thresholds apply to US persons living in the UK?

Form 8938 is the Statement of Specified Foreign Financial Assets, a FATCA disclosure attached to the income tax return. IRS.gov sets higher thresholds for taxpayers living abroad: an unmarried taxpayer, or a married taxpayer filing separately, files if specified foreign financial assets exceed $200,000 on the last day of the year or $300,000 at any time, and joint filers above $400,000 or $600,000. To use these thresholds, the Instructions for Form 8938 require bona fide residence abroad for an uninterrupted period including a full tax year, or presence abroad for at least 330 full days in a 12-month period ending in the tax year.

The IRS questions and answers on Form 8938 confirm that you report the financial account itself, not every holding inside it. Assets reported on Form 8621 need not be repeated, although their value still counts toward the threshold. Form 8938 does not replace the FBAR, or vice versa. The penalty for failing to file is up to $10,000, with more if the failure continues after an IRS notice. The instructions also warn that if the form is not filed, the assessment period may stay open until three years after it is filed, and omitting more than $5,000 of foreign asset income extends it to six years.

Why are the funds inside a UK discretionary portfolio usually PFICs?

A PFIC is a foreign corporation where at least 75 percent of gross income is passive, or at least 50 percent of its assets produce or are held to produce passive income. A pooled investment fund is almost always passive by design, so if it is treated as a corporation for US tax purposes and is organised outside the United States, it is almost always a PFIC. Most UK and European pooled vehicles meet that description. OEICs are companies. UK unit-based pooled funds, Irish and Luxembourg UCITS funds and non-US ETFs are generally classified as corporations under the US entity classification rules. Listed investment companies are UK public companies whose business is holding a portfolio.

Sterling bond and gilt funds used for the fixed income allocation.
Regional equity funds for Japan, Asia or emerging markets.
Irish or Luxembourg domiciled ETFs used for index exposure.
Listed investment companies holding private equity, infrastructure or specialist portfolios.
Money market and liquidity funds holding part of the cash sleeve.

Direct holdings of UK operating companies are generally not PFICs, although the test is applied company by company and year by year. Do not confuse two regimes: the GOV.UK list of offshore funds with HMRC reporting fund status decides how a UK investor is taxed on disposal. It has no bearing on US PFIC status, and a fund can be a UK reporting fund and a US PFIC at the same time.

How does Form 8621 work under the excess distribution, QEF and mark-to-market regimes?

The Instructions for Form 8621 require a separate Form 8621 for each PFIC in which stock is held directly or indirectly. A form is needed when you receive a distribution, recognise gain on a disposal, report or make an election, or file the annual report required under section 1298(f). There is an exception where the total value of all PFIC stock is $25,000 or less at year-end, or $50,000 for joint filers, but it only applies to funds taxed under the default regime and only where there is no excess distribution and no gain in that year. A high-net-worth DFM portfolio will rarely qualify. Fifteen funds means fifteen forms, every year.

The default regime is the section 1291 excess distribution method. An excess distribution is the part of a year's distributions above 125 percent of the average received in the three preceding years, and a gain on selling PFIC shares is treated the same way. The excess is spread rateably across your holding period. The part allocated to the current year and pre-PFIC years is ordinary income; the parts allocated to earlier PFIC years attract a separate tax at the top rate for each of those years plus an interest charge. There is no capital gains rate.

A qualified electing fund (QEF) election instead taxes your annual share of the fund's ordinary earnings and net capital gain, keeping capital gain character. It needs the fund to supply a PFIC Annual Information Statement, and the Form 8621 instructions say the election must generally be made by the due date, including extensions, of the return for the first year it applies. Many UK funds do not produce this statement, so ask. The mark-to-market election is limited to marketable stock regularly traded on a qualifying exchange or market, with annual increases in value taxed as ordinary income. Exchange-traded ETFs and listed investment companies are the usual candidates.

In a catch-up, elections generally cannot be made retroactively for years that have passed, so funds bought and sold within the late years are usually computed under the default regime. For funds still held, making a mark-to-market or QEF election in the earliest available year can limit future exposure. The first year of a late election carries its own transition rules, which must be computed rather than assumed.

How do you rebuild hundreds of Form 8949 lines from UK contract notes and tax packs?

A discretionary mandate trades whenever the manager rebalances, switches a holding or raises cash, and an active portfolio can produce several hundred disposals a year. Each sale of a non-PFIC security, such as a direct share or a corporate bond, goes on Form 8949 and Schedule D with its own acquisition date, disposal date, cost and proceeds. PFIC disposals are computed on Form 8621 instead. The core rule is that cost is converted into dollars at the rate on the purchase date and proceeds at the rate on the sale date. A holding that is flat in sterling can therefore show a US gain or loss purely because the pound moved against the dollar.

The UK year-end tax pack cannot be used as a shortcut. It runs from 6 April to 5 April, reports in sterling and computes gains under UK share pooling and matching rules, which differ from the US specific-lot method. A single US calendar year needs data from two UK tax packs. The pack may also leave out gains that are exempt in the UK but taxable in the US: GOV.UK confirms that gains on qualifying gilts are exempt from UK capital gains tax, yet the same gains are taxable on a US return.

Obtain the full transaction history for each catch-up year, plus earlier purchase history for any holding sold in those years.
Pull each contract note for trade date, quantity, consideration, commission and stamp duty, which adjust cost or proceeds.
Separate PFIC holdings from direct securities before building Form 8949.
Apply the exchange rate for each trade date to both legs, and record the rate source.
Reconcile proceeds and year-end holdings to custodian statements so no lot is missed or double counted.
Track currency conversions in the cash sleeve and sterling bonds, which can produce separate US currency gains or losses.

How are dividends, interest and UK tax handled on the US return?

Dividends and interest from the portfolio are reported in the year received, converted into dollars at the rate prevailing when received, consistent with IRS.gov guidance on foreign currency. Dividends from eligible UK companies can be qualified dividends taxed at capital gains rates where the holding period is met, because the US-UK income tax treaty makes them qualified foreign corporations. Distributions from PFICs never qualify. Income accumulated inside accumulation-class fund units is a further trap: under the default PFIC regime it is not taxed until a distribution or sale, but under a QEF election it is included each year.

UK income tax paid on the same dividends and interest through Self Assessment is usually relieved in the US through the foreign tax credit on Form 1116, in the passive income category. Because UK tax is computed on the UK year, it has to be apportioned to the US calendar year before it can be claimed. The 3.8 percent Net Investment Income Tax, which IRS.gov applies above $200,000 of modified adjusted gross income for single filers and $250,000 for joint filers, sits outside the ordinary income tax. Whether UK tax can reduce it is a contested point, so it should be modelled separately rather than assumed away.

Are wealth management fees deductible on a US return?

Generally not for an individual. Investment management fees were historically miscellaneous itemized deductions subject to a 2 percent floor. IRS Publication 529 confirms those deductions are not available for current years, and 2025 federal legislation kept them off the table on a lasting basis. Fees charged inside a fund simply reduce its return. Commissions and stamp duty are not deductions but adjustments to cost or proceeds, captured trade by trade in the rebuild.

How do you catch up on missed US tax returns: Streamlined or delinquent filing?

The Streamlined Foreign Offshore Procedures are the IRS route for non-resident US taxpayers whose failures were non-willful. IRS.gov sets a non-residency requirement: in at least one of the most recent three years for which the return due date has passed, a US citizen must have had no US abode and been physically outside the United States for at least 330 full days. The IRS defines non-willful conduct as conduct due to negligence, inadvertence or mistake, or conduct resulting from a good faith misunderstanding of the law.

File delinquent or amended returns for the most recent three years for which the due date has passed, with all required information returns such as Form 8938 and, for the portfolio, each Form 8621.
File FBARs for the most recent six years for which the FBAR due date has passed.
Complete and sign Form 14653, the certification of non-willful conduct, with a factual narrative of why the portfolio went unreported.
Write Streamlined Foreign Offshore in red at the top of the first page of each return, which IRS.gov describes as critical.
Pay the full tax and interest due with the submission.

IRS.gov states that an eligible taxpayer who follows the instructions will not be subject to failure-to-file, failure-to-pay, accuracy-related, information return or FBAR penalties. A taxpayer already under IRS examination, or whose conduct was willful, should not assume the procedure is available. Where all income was reported but a form was missed, delinquent information returns with a reasonable cause statement may fit better, with relief at IRS discretion. The IRS previously ran a separate delinquent FBAR submission procedure; that page was withdrawn in mid-2026 and should not be treated as a live route.

Worked scenario: an investment banker with a UK discretionary portfolio

The figures are illustrative. James is a US citizen and managing director at a London investment bank, resident in the UK since 2015. He stopped filing US returns after 2019. His deferred bonuses are paid into a discretionary portfolio worth about GBP 3 million, holding around 40 direct equities and bonds, including gilts, and 14 pooled funds: OEICs, Irish ETFs, two listed investment companies and a liquidity fund. There is a custody account plus a cash account with sterling and dollar sub-accounts under separate numbers, and the manager makes around 300 trades a year.

Step one is eligibility: James has had no US abode, has been outside the US for well over 330 full days a year, and his failure was an honest oversight, so the Streamlined Foreign Offshore Procedures fit. Step two is the FBARs: for each of six years he reports three accounts separately. The sterling sub-account peaks each March when bonus cash lands, so that peak, not the December balance, is the maximum value, converted at the year-end Treasury rate. Step three is Form 8938, where both abroad thresholds are plainly exceeded.

Step four is sorting the holdings. The 14 funds are flagged as PFICs and the manager is asked whether any issues a PFIC Annual Information Statement. Funds sold in the filing years are computed under the excess distribution method, using purchase history back to 2015 to allocate gains across the holding period, while listed funds still held are tested for a mark-to-market election in the earliest open year. Step five is Form 8949: direct trades are rebuilt from contract notes with dual-date exchange rates, and gilt sales missing from his UK schedule are added. Step six apportions UK tax across two UK tax years for the foreign tax credit. The method, not a guessed number, produces the liability.

What data should you request from your UK wealth manager?

Most UK wealth managers can produce everything a US return needs, but only when asked precisely. A vague request for tax documents usually returns the UK tax pack, which is the least useful document for a US filing. Send a written data request covering the following.

Every account and sub-account number held for you, the institution holding each, and dates opened and closed.
Transaction-level cash ledgers for each currency sub-account, to identify FBAR maximum values.
A full transaction history per calendar year, with trade date, quantity, price, currency, commission and stamp duty.
Original acquisition dates and costs for every holding sold, including lots bought before the manager took over.
A holdings list showing each pooled fund's ISIN, domicile and legal form, to confirm PFIC status.
Confirmation of which funds publish a PFIC Annual Information Statement, with copies.
Income per holding, split between dividends, interest and accumulated income, with payment dates.
Valuations at 31 December for each account, alongside the usual 5 April figures.
Written confirmation that your US person status is recorded on the portfolio going forward.

Should the portfolio be restructured toward US-reportable holdings?

As a compliance step, most US persons in the UK instruct their manager to record their US status and run the mandate with holdings that are simpler to report in both countries: direct equities, direct bonds and, where pooled exposure is needed, funds that do not trigger PFIC filings. This is a reporting decision, not a view on investment merit. Check the UK side too: HMRC guidance on GOV.UK explains that a UK investor selling a non-reporting offshore fund is taxed on an offshore income gain at income tax rates. Selling existing PFICs is itself a disposal under the default regime, so compute and time those sales before giving the instruction.