US LLC for founders in the UK

UK founders often form US LLCs to sell to American customers. The US side is usually light, but the UK view of an LLC differs from the US view, which surprises many owners. This guide explains the mismatch and the questions to settle before you start.

By Awais Jameel, Chartered Accountant. Reviewed by Muhammad Bilal, Chartered Accountant. Checked against official sources on . 3 minute read.

Short answer

UK founders can form a US LLC remotely, but HMRC generally treats a US LLC as a company, not as transparent the way the US does. That mismatch affects how and when the profit is taxed in the UK and whether US tax can be credited. Managing it from the UK can also make it UK resident for corporation tax. Form 5472 still applies.

At a glance

US-UK tax treaty
Yes, with limitation on benefits rules
HMRC's usual view
A US LLC is a company, not transparent
Management risk
Central management and control in the UK
UK residents
Taxed on worldwide income
Non-dom regime
Replaced from April 6, 2025
Yearly US filing
Form 5472 with a pro forma Form 1120
US LLC for founders in the UKUS-UK tax treaty: Yes, with limitation on benefits rules; HMRC's usual view: A US LLC is a company, not transparent; Management risk: Central management and control in the UK; UK residents: Taxed on worldwide income; Non-dom regime: Replaced from April 6, 2025; Yearly US filing: Form 5472 with a pro forma Form 1120.KEY FACTS AT A GLANCEUS LLC for founders in the UKUS-UK tax treatyYes, with limitation onbenefits rulesHMRC's usual viewA US LLC is a company,not transparentManagement riskCentral management andcontrol in the UKUK residentsTaxed on worldwide incomeNon-dom regimeReplaced from April 6,2025Yearly US filingForm 5472 with a proforma Form 1120Checked against official sourcesTax BakersUS LLC for founders in the UKUS-UK tax treaty: Yes, with limitation on benefits rules; HMRC's usual view: A US LLC is a company, not transparent; Management risk: Central management and control in the UK; UK residents: Taxed on worldwide income; Non-dom regime: Replaced from April 6, 2025; Yearly US filing: Form 5472 with a pro forma Form 1120.KEY FACTS AT A GLANCEUS LLC for founders in the UKUS-UK tax treatyYes, with limitation on benefits rulesHMRC's usual viewA US LLC is a company, not transparentManagement riskCentral management and control in the UKUK residentsTaxed on worldwide incomeNon-dom regimeReplaced from April 6, 2025Yearly US filingForm 5472 with a pro forma Form 1120Checked against official sourcesTax Bakers
Key facts at a glance, as set out in this guide.

Why do founders in the UK form a US LLC?

  • US-facing business. A US entity and bank account suit US clients, marketplaces and investors.
  • Alternative to a UK company. Some founders compare a US LLC with a UK limited company that registers to sell in the US. For many UK residents the UK company is simpler.

How do you set one up from the UK?

  1. Check the home-country position first

    How the UK will tax the LLC and its profit.

  2. Choose the state and form the LLC

    Online, through a registered agent.

  3. Get the EIN

    Without an SSN or ITIN, by fax, mail or phone.

  4. Open a US account

    With a bank or provider that onboards non-resident owners.

  5. Keep books and a transfer log

    For Form 5472 and your the UK return.

See how to open a US LLC from outside the US and the best state for a non-resident LLC.

What does the US require?

A single-member LLC owned by a resident of the UK is disregarded for US income tax. If it has no US office, employees or dependent agents, it usually has no income effectively connected with a US business and owes no US income tax. It must still file Form 5472 with a pro forma Form 1120 each year it has transactions with you, by fax or mail; the penalty for each missing form is $25,000. See Form 5472 and yearly filings for a foreign-owned LLC.

The US-UK income tax treaty can remove US tax on business profits that are not attributable to a US permanent establishment, and reduce withholding on dividends, interest and royalties, for UK residents who meet its limitation on benefits rules. Treaty relief does not remove Form 5472. See tax treaties and your US LLC.

How does the UK tax it?

UK residents are taxed on worldwide income. HMRC's general view is that a US LLC is a company, separate from its members, rather than a transparent entity, although the Supreme Court in the 2015 Anson case reached a different result on the facts of one Delaware LLC. On HMRC's general view:

  • The LLC's profit is not automatically your income each year; distributions may be taxed as dividends when received.
  • Anti-avoidance rules on transferring assets abroad can tax UK residents on income arising to a foreign company in some cases.
  • If the US taxes you on the LLC's profit as transparent income, UK relief for that US tax may be harder to claim.

From April 6, 2025, the remittance basis for non-domiciled individuals was replaced by a four-year foreign income and gains regime for people arriving in the UK after ten years of non-residence. Check whether it applies to you.

Can managing it from the UK make it a UK company?

Yes. A company incorporated abroad is UK resident for corporation tax if its central management and control is in the UK. A US LLC treated as a company and run entirely by its owner from the UK may be UK resident, and liable to UK corporation tax on its profits, subject to the treaty's tie-breaker rules. This is a key point to settle with a UK adviser before forming the LLC.

How should money move?

Pay yourself from the LLC's US account to your UK account through normal banking channels, and record each transfer. The records support Form 5472 and your self assessment. See taking money out of a US LLC.

What are the common mistakes?

  • Assuming HMRC treats the LLC as transparent, the way the US does.
  • Running the LLC from the UK without considering central management and control.
  • Skipping Form 5472 because there was no US tax.

The general position for every country is in US LLC and tax in your home country.

Running a US LLC from the UK?

We form the LLC, get the EIN without an SSN, file Form 5472 every year, and work with your UK adviser on the home side.

Questions people ask

How does HMRC treat a US LLC?

Generally as a company, not as a transparent entity, although the position can depend on the facts and the LLC's operating agreement.

Is there a US-UK tax treaty?

Yes. It can remove US tax on profits without a US permanent establishment and reduce withholding, for eligible UK residents.

Can a US LLC be UK tax resident?

Yes, if HMRC treats it as a company and its central management and control is in the UK.

Is a UK limited company better than a US LLC for UK founders?

Often simpler for UK residents, but it depends on the business and its US activity.

Sources

Every fee, date and rule on this page was taken from these official and primary sources.

  1. HMRC International Manual: classification of US LLCs
  2. IRS: Instructions for Form 5472 (Rev. December 2024)
  3. IRS: United States income tax treaties, A to Z

Rules and fees change. If you are reading this long after October 1, 2026, confirm the figures with the source before you rely on them.

More in Foreign-owned and non-resident companies

This guide is general information. It is not tax or legal advice for your situation.