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US citizens in the UK · Institutions

Which Prosper accounts accept US citizens

Last checked

Prosper has been checked for US citizens across 3 account types. 1 is open to a US person (with strings) and 2 are closed.

If you already have an account with Prosper, a second one there is usually the easier application, because Prosper has already checked who you are. Each account below carries its verdict, the evidence behind it and the date it was last updated.

At a glance

Account type Verdict Accounts Updated
Stocks & shares ISAs Declines US citizens —
Brokerage accounts Accepts with conditions 1
SIPPs Declines US citizens —

Stocks & shares ISAs

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Declines US citizens
Updated

Prosper never writes the word citizen. Its terms require that you are not a tax resident of the United States, which sounds like a residence test and is not one in practice, because American citizenship-based taxation makes a US citizen in London a US tax resident. Expect it to catch you, and note the shelf is funds only regardless.

FSCS £85,000 · Seccl is the custodian · app only

Source: Prosper terms and conditions, eligibility, 2026-08-17 Prosper's own page

Brokerage accounts

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Accepts with conditions
Updated

US persons: the door may open, but the shelves hold only funds

Prosper's investment terms set only a residence test, that you are 18 or over and UK tax resident, and the US exclusion sits in its savings annex rather than its investing one. So the account may well open. The problem is what is on it: more than 200 funds and ETFs and no individual shares at all, so every holding available to you is a PFIC.

FSCS £85,000 investment cover · app first, web available

Account Terms The catch
General investment account
Annual fee
No platform fee, with fund manager fees refunded on more than 30 funds
Dealing fee
None, and no transfer or exit fee
Can hold
More than 200 index, portfolio and mutual funds and ETFs. No individual shares, so nothing here escapes the PFIC rules.
Individual shares
No
US-domiciled ETFs
No
 Private market investments carry a 1% upfront fee, and Prosper keeps the interest on uninvested cash.

Source: Prosper terms and conditions version 7.0, March 2026, read 2026-08-17 Prosper's own page

SIPPs

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Declines US citizens
Updated

Prosper's eligibility clause says you may use its services only if you are not a tax resident of the United States, and it never defines the term. American citizenship-based taxation makes a US citizen a US tax resident wherever they live, so expect it to catch you, but Prosper has not said so and should be asked. The clause governs the whole account, so the pension and the ISA stand or fall together.

FSCS £85,000 investment cover · app based

Source: Prosper terms and conditions, eligibility, 2026-08-17 Prosper's own page

Account names link to the provider's own site. No link on this page is paid. How Momo makes money. Every institution, A to Z.

Confirm your own position with a cross-border specialist. Acceptance policies and tax rules change, and your facts may differ from the general case. Rates and terms here are the provider's published figures rather than an offer, and the provider decides each application on its own criteria. Use this as a map, not a ruling. Last checked .
Tax

PFIC

Almost every UK-domiciled fund is a PFIC, taxed by the US at punitive rates with heavy filing. This is why US citizens hold individual shares, not UK funds.

 Tax

ISA US tax

The IRS does not recognise the ISA wrapper. Cash ISA interest and stocks ISA gains are taxable on your US return, and fund holdings drag in PFIC rules.

 Tax

FATCA

Do UK banks report your account to the IRS? Yes, through HMRC, under FATCA. It is a reporting law, not a tax. Where it bites is access.

 Tax

SIPP US tax

The US Treasury reads the treaty as leaving UK SIPP growth untaxed until drawn; the treaty's wording is narrower. Contributions, growth and drawdown explained.