The short version
- A UK platform can't sell an ETF to an ordinary investor without a standard disclosure document, today a KID or KIID. Most US-based ETFs don't produce one.
- The FCA is replacing those documents with a "product summary" under its new Consumer Composite Investments (CCI) regime. The switch began on 6 April 2026 and becomes compulsory on 8 June 2027.
- The new rules don't open the door by themselves. A US fund would still need to produce the UK document and be recognised for sale here, and in December 2025 the FCA said none were.
- UK investors usually reach the same indices through UCITS ETFs based in Ireland or Luxembourg.
Part of ETF basics. New to ETFs? Start with what an ETF is and how it works.
- 0US funds recognised for sale to UK retail investors, the FCA said in December 2025
- June 2027when the new product summary fully replaces the KID and KIID
- 15%US tax on UK residents' share dividends under the UK–US treaty, instead of 30%
The rule that keeps US ETFs off UK platforms
If you’ve read about a popular American ETF and searched for it on a UK platform, you’ve probably come up empty. That isn’t the platform being awkward. It’s the rules.
Since 2018, anyone selling a packaged investment, such as a fund, to ordinary investors has had to hand over a short standard document first. Under the PRIIPs rules (packaged retail and insurance-based investment products), that meant a key information document, or KID. UCITS funds have used a similar key investor information document, or KIID.
The Treasury describes KIDs as standardised documents setting out what the product is, how it might perform, and its potential risks and returns.
The requirement still applies today. The FCA’s rules say a firm must not sell such an investment to a retail investor unless it provides the disclosure document in good time.
Most US-domiciled ETFs (funds legally based in the US) don’t produce these documents. When the rules arrived in 2018, the specialist site justETF reported that many brokers removed them. The funds didn’t comply, and producing European documents wasn’t a priority for firms focused on the US market.
The rule covers packaged products, which the FCA defines as investments whose returns depend on underlying assets. Shares in a single US company aren’t packaged products, so this rule doesn’t apply to them.
What the FCA's new rules change
The UK is replacing the KID and KIID with its own system, the Consumer Composite Investments (CCI) regime. The FCA published its final rules, policy statement PS25/20, on 8 December 2025.
The old UK PRIIPs law was repealed on 6 April 2026, the day the CCI regime began. There’s a long transition, so little changed overnight.
| Date | What happens |
|---|---|
| 6 April 2026 | CCI law starts. Fund makers can switch to the new product summary or keep using a KID or KIID. |
| 7 June 2027 | Last day of the transition period. |
| 8 June 2027 | The full rules apply. Platforms must not sell a fund to retail investors without an up-to-date product summary. |
The dates come from the FCA Handbook and PS25/20. Until June 2027, platforms’ duty stays as it was: provide whichever disclosure document applies.
The FCA says fund makers will have “considerable freedom” over how the product summary looks. It must still include standard figures on costs, risk, return and past performance, so products can be compared.
One thing hasn’t changed. Only the fund’s maker can produce the summary. The FCA dropped an earlier idea of letting platforms write or edit their own, and platforms must pass on the maker’s version unamended.
Why US ETFs still aren't on the menu
A few responses to the FCA’s consultation argued the new rules would keep US ETFs out, just as the KID had. The FCA disagreed, saying its rules “do not create a barrier” to US ETFs.
Its explanation points to a different hurdle. A fund from outside the UK can only be marketed to UK retail investors if it’s a “recognised scheme”. That means approval under the Overseas Funds Regime, for countries the Treasury has judged equivalent, or under a separate route in the Financial Services and Markets Act 2000.
In December 2025 the FCA said there were no US funds recognised in the UK. It called entering the UK retail market a commercial decision for those firms.
So two things would need to happen before a US ETF could be offered to you in the usual way. Its maker would have to produce a UK product summary, and the fund would need UK recognition. I found no FCA announcement, as of 13 October 2026, saying a US fund has been recognised since.
The usual alternative: UCITS ETFs
UCITS is the European rulebook for investment funds sold to the public. Many ETFs listed in London are UCITS funds domiciled in Ireland or Luxembourg.
For example, iShares Core MSCI World is a sub-fund of an Irish company authorised by the Central Bank of Ireland. State Street’s European SPDR ETFs are authorised in Ireland or Luxembourg. These are examples, not recommendations.
The FCA’s Overseas Funds Regime is open to most funds set up in EEA countries under the UCITS rules, so they can be recognised for sale to UK retail investors. They publish KIIDs or KIDs, so UK platforms can offer them.
Many track the same well-known indices as US funds do. Vanguard’s trading guide, for instance, describes buying the S&P 500 through a UCITS ETF in London. They’re still separate funds, with their own costs and tracking record. The guide to reading an ETF factsheet shows where to find those.
One tax point matters outside an ISA or SIPP. HMRC taxes gains on an offshore fund with “reporting fund” status as capital gains. Gains on a non-reporting fund are normally taxed as income instead.
If what you are after is exposure to particular US companies, the company pages show how much of Apple, Alphabet and Tesla a UCITS S&P 500 or world ETF already gives you.
US dividends and the W-8BEN form
This part applies if you hold US shares or US-listed funds directly, for instance through a platform that offers US shares.
The US taxes income paid to foreign investors at 30% by default. The UK–US tax treaty cuts that to 15% on ordinary shareholdings for UK residents. Dividends paid to a UK pension scheme can be exempt altogether.
To get the lower rate, you fill in a form called a W-8BEN. It confirms you aren’t a US person and claims the treaty rate. You give it to your platform or broker, not to the IRS. It generally lasts until the end of the third calendar year after the one you sign it in.
With an Irish or Luxembourg ETF that holds US shares, any tax on dividends is paid inside the fund. Vanguard notes it shows up in the fund’s value and returns, not on your own statement.
US estate tax on US funds you hold directly
This is the least-known risk, and it only matters when someone dies.
The IRS says the estate of someone who was neither a US citizen nor a US resident must file a US estate tax return if their US assets were worth more than $60,000 at death. Shares in US companies count as US assets, wherever the certificates are held.
The IRS instructions add that a partial exemption for shares in US “regulated investment companies” applied only to deaths between 2005 and 2011. That’s the US tax category that includes mutual funds. So US-domiciled funds held directly can count towards the threshold.
Shares in companies set up outside the US generally count as outside the US. The iShares fund above, for instance, belongs to a company incorporated in Ireland.
The UK–US treaty on estate taxes can limit what’s owed for UK nationals who weren’t domiciled in the US. This is specialist territory. If it might affect your family, it’s a question for a tax adviser.
Common questions
- Can I keep US ETFs I already own?
- When the rules began in 2018, justETF reported that existing holders could keep or sell them but not buy more. The rule restricts selling to you, not you selling. Your platform can confirm how it treats existing holdings.
- Will US ETFs become available after June 2027?
- Only if a US fund’s maker produces a UK product summary and the fund is recognised for UK sale. The FCA has said that’s a commercial decision for those firms. Nobody can say whether they will.
- Can I buy them as a “professional client”?
- The retail rules don’t apply to professional clients. To be treated as one, you’d normally need to meet two of three tests, such as a portfolio above €500,000. Your firm must warn you in writing about the protections and compensation rights you may lose.
- Is a UCITS version of a US ETF the same thing?
- It may track the same index, but it’s a different fund with its own costs, structure and tax treatment. Compare the documents for each fund rather than assuming they’re identical.
This page explains how the rules work. It isn't advice about what you should buy or how to arrange your tax affairs. Investments can fall as well as rise, and you may get back less than you put in. If a decision depends on your circumstances, MoneyHelper offers free guidance, and you can check an adviser on the FCA register. Read the full disclaimer.
Sources
- PS25/20: Supporting informed decision making: final rules for Consumer Composite Investments, Financial Conduct Authority
- PS25/20 full policy statement (PDF), chapters 1–3 and 8, Financial Conduct Authority, December 2025
- DISC TP 2: Transitional provisions, FCA Handbook
- Explanatory Memorandum to the Consumer Composite Investments (Designated Activities) (Amendment) Order 2025, HM Treasury, legislation.gov.uk
- Overseas Funds Regime: update for firms, Financial Conduct Authority
- COBS 3.5: Professional clients, FCA Handbook
- US-domiciled ETFs: why they are no longer available from many online brokers, justETF, March 2018 (specialist press)
- iShares Core MSCI World UCITS ETF USD (Acc): Key Investor Information, BlackRock, February 2026
- iShares Core MSCI World UCITS ETF USD (Acc): Key Information Document, BlackRock, September 2026
- Structure of capital markets, State Street Investment Management
- ETF trading guidance and best practices, Vanguard Research, February 2021
- HS265 Offshore funds, HMRC, GOV.UK
- Instructions for Form W-8BEN, Internal Revenue Service
- About Form W-8 BEN, Internal Revenue Service
- DT19852: United States of America treaty summary, HMRC Double Taxation Relief Manual
- What affects index tracking?, Vanguard UK
- Some nonresidents with US assets must file estate tax returns, Internal Revenue Service
- Instructions for Form 706-NA (Rev. September 2025), Internal Revenue Service
- Publication 550: Investment income and expenses, Internal Revenue Service
Facts checked 13 October 2026.