Is a UK crowdfunding platform wallet reportable on the FBAR?

There is no FinCEN guidance that names crowdfunding wallets, so the answer comes from the definitions in 31 CFR 1010.350. Cash held for you in a client account at a bank, or by a firm that holds securities or accepts funds as a financial agency, fits comfortably within those definitions. The conservative and common position is to report the wallet using its maximum balance during the calendar year.

Do nominee-held crowdfunding shares count toward the $10,000 FBAR threshold?

Where a nominee company holds shares as legal owner on your behalf and is in the business of holding securities, the arrangement closely resembles a securities account, and the regulation treats nominee arrangements as giving you a financial interest. On a conservative basis, include a reasonable valuation of the shares in the maximum value and aggregate it with the wallet and other UK accounts.

Do UK startup shares go on Form 8938?

Yes, if your Form 8938 threshold is met. Foreign stock held directly for investment is a specified foreign financial asset in its own right. If the shares are held in a custodial account maintained by a foreign financial institution, you report the account instead of each holding. Taxpayers living abroad have higher thresholds than US residents, and Form 8938 never replaces the FBAR.

Does UK EIS income tax relief reduce my US tax bill?

No. EIS relief at 30% and SEIS relief at 50% are UK-only reliefs, and the US gives no deduction for the investment. Because the relief lowers the UK income tax you actually pay, it can reduce your foreign tax credit and increase US tax on UK income. A UK capital gains exemption on qualifying shares also does not exempt the gain from US tax.

How do I claim a US loss when a crowdfunded UK startup fails?

Under IRS Publication 550, a security that becomes worthless is treated as sold on the last day of the tax year in which it became worthless, producing a capital loss on Form 8949. Section 1244 ordinary loss treatment is limited to domestic corporation stock, so it does not apply to UK companies. Net capital losses offset up to $3,000 of other income a year, with carryforward.

Can I use the Streamlined Foreign Offshore Procedures for a missed crowdfunding FBAR?

Yes, if you meet the non-residency test, your failure was non-willful, and there was unreported income or other return errors to correct. You file three years of returns, six years of FBARs and Form 14653, and eligible filers face no FBAR penalties. If every dollar of income was already reported, late FBARs through BSA E-Filing with a reason for late filing are usually enough.

Missed FBAR on a UK Crowdfunding Platform Wallet

A missed FBAR on a UK crowdfunding platform wallet is one of the most common gaps we find when a US citizen angel investor living in London first asks us to review their filings. The short answer: the cash wallet should, on a conservative reading of the rules, be treated as a foreign financial account; shares held through the platform's nominee may also sit inside a reportable securities account; and if the combined value of all your foreign accounts went above $10,000 at any time in a calendar year, an FBAR was due. The fix is a late FBAR filed through FinCEN's BSA E-Filing System with a reason for late filing, or the Streamlined Foreign Offshore Procedures if income also went unreported.

This guide is written for high-net-worth US persons who back UK startups through equity crowdfunding, very often in EIS or SEIS qualifying rounds. It separates the five questions that usually get blurred together: the wallet, the nominee shareholding, Form 8938, Form 5471 and PFIC exposure, and then covers how UK tax reliefs and failed-startup losses play out on the US return.

Why do US angel investors miss the FBAR on UK crowdfunding platforms?

The failure mode we see most often is simple: the investor thinks of the platform as an app, not as a financial institution. Money is loaded into a wallet, a pitch is backed, the funds are swept to the company when the round closes, and a portfolio screen shows a list of startups. Nothing about that experience looks like a bank statement or a brokerage account, so the platform never makes it onto the list given to the preparer.

The second reason is timing. Wallet balances spike for short periods. An investor may top up a large sum to take part in two or three rounds in the same month, and the balance may sit there for days or weeks while rounds are open or refunds are processed. The FBAR test looks at the maximum value at any time during the calendar year, not the year-end balance, so a wallet that was empty on 31 December can still be the account that pushed the aggregate over the threshold.

The wallet is funded in pounds and never appears in a US bank feed or 1099.
Shares are registered in the name of a nominee company, so the investor never receives a share certificate.
Early-stage companies pay no dividends, so there is no income to prompt a reporting review.
EIS and SEIS paperwork is handled on the UK return, which the investor associates with UK tax only.
Year-end balances are small or nil, hiding a mid-year peak.

What does the FBAR rule actually require?

The FBAR is FinCEN Form 114, the Report of Foreign Bank and Financial Accounts. According to the IRS page at https://www.irs.gov/businesses/small-businesses-self-employed/report-of-foreign-bank-and-financial-accounts-fbar, a United States person with a financial interest in, or signature authority over, foreign financial accounts must file if the aggregate value of those accounts exceeded $10,000 at any time during the calendar year. The FBAR is due April 15 with an automatic extension to October 15, and it is filed electronically through FinCEN's BSA E-Filing System, not with the federal tax return.

The underlying regulation is 31 CFR 1010.350, which can be read at https://www.ecfr.gov/current/title-31/subtitle-B/chapter-X/part-1010/subpart-C/section-1010.350. It defines three families of reportable account. A bank account is a savings, demand deposit, checking or any other account maintained with a person engaged in the business of banking. A securities account is an account with a person engaged in the business of buying, selling, holding or trading stock or other securities. An other financial account includes, among other things, an account with a person that accepts deposits as a financial agency. A financial interest also exists where the owner of record or holder of legal title is acting as an agent, nominee or in some other capacity on behalf of the US person.

That nominee language matters a great deal for crowdfunding, because the typical UK equity crowdfunding structure puts both the cash and the shares in someone else's legal name while you keep the economic interest.

Is the platform cash wallet a foreign financial account?

A platform cash wallet is a client-money balance: money you have transferred to the platform, which the platform or its payment partner holds on your behalf until it is invested, withdrawn or refunded. In the UK these balances are typically held in segregated client accounts at a bank or with a regulated payment or e-money provider, with the platform keeping a ledger of each investor's share.

Neither FinCEN nor the IRS has published guidance that expressly addresses crowdfunding platform wallets. So the analysis has to run through the regulatory definitions. There are three plausible routes to the wallet being reportable:

Bank account route: your money sits in a pooled client account maintained with a UK bank. The platform is the owner of record, but it holds the funds for you, which is the agent or nominee situation described in 31 CFR 1010.350(e).
Securities account route: the wallet is operated by a firm in the business of buying, selling and holding securities for clients, and cash held pending investment is commonly treated as part of the securities account relationship.
Other financial account route: a platform or e-money provider that accepts and holds funds for customers can be viewed as accepting deposits as a financial agency.

Could an argument be made that a wallet held by a payment institution under a pooled arrangement is not an account of yours at all? Possibly, and the absence of express guidance cuts both ways. But the cost of over-reporting an account on an FBAR is essentially nil, while the cost of omitting one that the IRS later considers reportable can be significant. In the returns we prepare, our conservative position is to report the wallet as a foreign financial account in the name of the platform, using the maximum balance shown in the transaction history for the year, and to keep a file note explaining the classification. We would say plainly to any client that this is a conservative reporting position, not a rule FinCEN has written down.

For maximum value, FinCEN's FBAR instructions direct filers to convert foreign currency using the Treasury Reporting Rates of Exchange for the last day of the calendar year, published by the Bureau of the Fiscal Service. Pull a full-year transaction export from the platform, because the dashboard usually only shows the current balance.

Are shares held through the platform's nominee reportable on the FBAR?

This is the question competitor guides skip, and the answer depends on how the shares are held. There are two broad models.

Direct shareholding means you appear on the startup's register of members in your own name. You hold the shares directly. Directly held stock in a foreign company is not, by itself, a financial account for FBAR purposes; there is no account with an institution, just a shareholding. Those shares stay off the FBAR, though they may belong on Form 8938, covered below.

Nominee holding means a nominee company, usually connected with the platform, is the registered legal owner of the shares and holds them on bare terms for you and the other investors. The nominee signs shareholder documents, receives notices, and processes any exit proceeds back to your wallet. Your portfolio page functions much like a custody statement.

Where the nominee is a firm in the business of holding securities for clients, the arrangement looks very much like a securities account under 31 CFR 1010.350(c)(2), and 31 CFR 1010.350(e) confirms you have a financial interest even though the nominee is the owner of record. Again, there is no FinCEN ruling on crowdfunding nominees specifically. Our conservative approach is to treat the nominee holding as a securities account and include a reasonable estimate of the value of the shares in the maximum value reported. Many filers list the wallet and nominee holding as one account with the platform where they are operated as a single client relationship, or as two accounts where the cash and custody entities are different legal entities; the platform's terms and conditions will show which entity holds what.

Valuing unlisted startup shares is inherently imprecise. A defensible basis is the price paid in the most recent funding round, adjusted downwards where the company has reported difficulties or entered insolvency. Record the method you used and apply it consistently from year to year.

How does Form 8938 treat UK startup shares held directly or through a nominee?

Form 8938, the Statement of Specified Foreign Financial Assets, is a separate IRS form filed with your Form 1040, and filing it does not replace the FBAR. The instructions at https://www.irs.gov/instructions/i8938 draw a distinction that maps neatly onto the two holding models.

Directly held foreign stock: stock issued by a foreign corporation, held for investment and not held in an account maintained by a financial institution, is a specified foreign financial asset in its own right. Each UK company you hold directly can need its own line on Form 8938.
Stock held through a foreign financial institution: if the shares sit in a custodial account maintained by a foreign financial institution, you report the account, and the instructions confirm you do not have to report the assets held in the account separately.
Cash wallet: if the wallet is a depository or custodial account maintained by a foreign financial institution, it is a financial account for Form 8938 as well.

The thresholds differ sharply by residence. For taxpayers living abroad, the IRS instructions set the threshold for a single filer at more than $200,000 on the last day of the tax year or more than $300,000 at any time during the year, and for married filing jointly at more than $400,000 or $600,000. For taxpayers living in the United States, the figures are $50,000 or $75,000 for single filers and $100,000 or $150,000 for joint filers. A London-based angel with a sizeable crowdfunding portfolio, UK bank accounts and a UK brokerage account can cross the overseas threshold more easily than they expect.

Do you need Form 5471 for a crowdfunding stake?

Almost certainly not, but it is worth checking. Form 5471 applies to certain US persons connected with foreign corporations. Under the instructions at https://www.irs.gov/instructions/i5471, a Category 3 filer includes a US person who acquires stock meeting 10% or more of the total value of the foreign corporation's stock or 10% or more of the total combined voting power, and Category 4 covers control of more than 50%.

A typical crowdfunding ticket is a tiny fraction of a company's equity, so the 10% test is rarely met. The exceptions we watch for are founders' friends who invest heavily in a very early seed round, investors who also hold shares outside the platform, and situations where ownership by related persons may be attributed. If you are near 10%, get the ownership analysis done properly, because the Form 5471 penalty regime is separate from the FBAR.

Is a UK startup a PFIC?

A passive foreign investment company, or PFIC, is a foreign corporation whose income or assets are predominantly passive under the tests in the Internal Revenue Code. A genuine operating startup that builds software, sells products or provides services is generally not a PFIC, because its income and assets come from active trading, and EIS and SEIS rules themselves require a qualifying trade. PFIC risk for a standard crowdfunding deal is therefore low.

The risk rises in specific situations: a company that has raised a large round and is holding most of it in cash and deposits before generating revenue; property-holding or lending vehicles offered on some platforms; fund-like or pooled investment structures; and companies that have stopped trading but still hold cash. Where a platform offering is anything other than an operating business, have the PFIC question reviewed before filing, because PFIC reporting on Form 8621 and the default excess distribution regime can be costly if missed.

Does EIS or SEIS relief carry over to your US return?

No. EIS and SEIS are UK reliefs and have no counterpart in US tax law. On GOV.UK, at https://www.gov.uk/guidance/venture-capital-schemes-tax-relief-for-investors, HMRC sets out that EIS gives 30% income tax relief on investments of up to £1 million a year (or £2 million where at least £1 million goes into knowledge-intensive companies), SEIS gives 50% relief on up to £200,000 a year, and shares generally need to be held for at least 3 years to keep the relief.

The US consequences that follow from that are what trip people up:

No US deduction: the amount invested is not deductible on Form 1040. Your US cost basis is generally what you paid for the shares.
Lower foreign tax credit: EIS or SEIS relief reduces the UK income tax you actually pay, and only tax actually paid can support a foreign tax credit. A large relief can leave more of your UK-source income exposed to US tax.
No US gain exemption: a UK capital gains tax exemption on disposal of qualifying EIS or SEIS shares does not stop the US taxing the gain. With no UK tax on the gain, there may be no UK credit to offset the US tax.
No QSBS: the US qualified small business stock exclusion requires stock in a domestic C corporation, so UK company shares do not qualify.

How is a failed UK startup treated as a loss in the US?

Most crowdfunded startups fail, so the loss side matters as much as the reporting side. In the UK, GOV.UK confirms that if you dispose of EIS shares at a loss you can choose to set the loss, less any income tax relief already given, against your income.

In the US, the rule is different. IRS Publication 550, at https://www.irs.gov/publications/p550, provides that a security that becomes worthless during the year is treated as sold on the last day of the tax year, giving a capital loss reported on Form 8949. Timing the year of worthlessness is a factual question, and claiming it in the wrong year is a common error. The ordinary loss treatment available under section 1244 applies to stock in domestic corporations, so it does not help with a UK company. As IRS Tax Topic 409 at https://www.irs.gov/taxtopics/tc409 explains, net capital losses in excess of capital gains can offset only $3,000 of other income a year ($1,500 if married filing separately), with the balance carried forward.

The practical result is an asymmetry: UK share loss relief can deliver a relatively quick income tax benefit, while the US loss is capital and may take years to use unless you have gains to absorb it. Keep the insolvency notices and platform write-off statements, because they are your evidence of worthlessness.

Worked scenario: an angel investor who missed three FBARs

Illustration only, with assumed figures and an assumed exchange rate of $1.30 to £1. A US citizen has lived in London for many years and files US returns each year through a preparer. From 2023 to 2025 she used a UK equity crowdfunding platform to back EIS and SEIS rounds. Her shares were held through the platform's nominee.

Her UK current account never exceeded £5,000, and she thought that kept her under the FBAR threshold. But in each year she loaded between £8,000 and £15,000 into the wallet ahead of funding rounds, and her nominee-held portfolio had an estimated value, based on latest round prices, of around £40,000 by 2025. On a conservative basis, her aggregate maximum value was well above $10,000 in all three years, so an FBAR was due each year and none was filed.

The startups paid no dividends and she had not sold any shares, so there was no unreported US income from the platform. Her other income had been fully reported. In that situation the Streamlined procedures are not needed for the income side. We filed three late FBARs through BSA E-Filing, reporting the platform wallet and nominee holding alongside her UK bank account, each with a reason-for-late-filing explanation describing her misunderstanding of what counted as a foreign account. We also checked Form 8938: as a taxpayer living abroad, her specified foreign financial assets were below the overseas threshold, so no Form 8938 was required.

Had one of her companies been sold with a gain she never reported, or had interest been paid on wallet balances that was left off her return, the analysis would have moved to the Streamlined Foreign Offshore Procedures.

How do you fix a missed FBAR for a UK crowdfunding platform?

The right route depends on one question: was all of your income correctly reported on your US returns?

If all income was reported and you have not been contacted by the IRS, file the delinquent FBARs as soon as possible through FinCEN's BSA E-Filing System. The IRS FBAR page states that late FBARs should be filed as soon as possible to keep potential penalties to a minimum, and that filers should follow FinCEN's instructions for documenting the reason for late filing. Note that the IRS withdrew its former Delinquent FBAR Submission Procedures page around July 2026, so do not rely on older articles that describe it as a live programme. FinCEN's own filing guidance is at https://www.fincen.gov/report-foreign-bank-and-financial-accounts.

If income was unreported, for example a gain on an exit, currency gains, interest on cash balances, or income from a non-crowdfunding account, and the failure was non-willful, the Streamlined Filing Compliance Procedures are usually the correct path. For US taxpayers living outside the US, the IRS page at https://www.irs.gov/individuals/international-taxpayers/us-taxpayers-residing-outside-the-united-states sets out the Streamlined Foreign Offshore Procedures:

Non-residency: in any one or more of the most recent three years, you had no US abode and were physically outside the United States for at least 330 full days (US citizens and green card holders).
Non-willful conduct: negligence, inadvertence, mistake, or a good faith misunderstanding of the law.
Filings: three years of delinquent or amended returns and six years of delinquent FBARs, filed electronically, selecting Other as the reason and entering Streamlined Filing Compliance Procedures.
Certification: Form 14653, signed under penalties of perjury, explaining the facts behind the non-willful failure.
Outcome: eligible filers are not subject to failure-to-file, failure-to-pay, accuracy-related, information return or FBAR penalties.

US residents who invest through UK platforms use the Streamlined Domestic Offshore Procedures instead, which carry a miscellaneous offshore penalty, so residence analysis for the relevant years should be done first.

What records should you gather before filing?

Full transaction history for the wallet for every year in scope, showing top-ups, investments, refunds and withdrawals.
The platform's terms and conditions identifying the client money holder and the nominee company, with their UK addresses.
Portfolio statements and round prices for each holding, plus any valuation updates or write-downs.
EIS and SEIS compliance certificates and the UK relief claimed on each Self Assessment return.
Insolvency, dissolution or strike-off notices for failed companies.
Records of UK bank, brokerage and other foreign accounts to calculate the aggregate FBAR value.

Once the history is in hand, the work is methodical: classify each account, compute maximum values, confirm whether Form 8938 thresholds were crossed, check the 10% and PFIC questions, reconcile income, and then choose between late FBARs alone or a full Streamlined submission. Getting the classification right the first time also sets up clean reporting for every future year you keep investing through the platform.