US LLCs Owned by UK Residents: The Mismatch That Taxes Profits Twice

Two countries, two different entities

Ask the IRS what a single-member LLC is and the usual answer is: nothing — a disregarded entity whose profits land directly on the owner's return. A multi-member LLC defaults to a partnership, again taxed on the members as profits arise. This pass-through treatment is precisely why LLCs dominate US small business.

Ask HMRC the same question and the usual answer is different: most US LLCs are opaque — analysed like companies, separate from their owners. On that view, the member is not taxed on the LLC's profits as they arise; they are taxed on distributions the LLC pays them, generally as dividend-type income.

Each view is coherent on its own. Together, they mean the same dollar of profit is taxed as business profit of the owner in one country and a distribution from a company in the other — different taxpayer, different income type, different year.

Where the double tax comes from

Relief from double taxation generally works by matching: one country taxes income, the other taxes the same income and credits the first country's tax. The LLC mismatch breaks the matching:

• The US taxes the member on profits as they arise, whether or not distributed.
• The UK taxes the member on distributions, perhaps in a different year — or on no UK-taxable event at all until money moves.
• When the UK does tax a distribution, HMRC's position on crediting the US tax paid on the underlying profits is restrictive, because in its analysis that US tax was charged on different income.

The result ranges from mild friction (timing mismatches, credits marooned in the wrong year) to genuine double taxation of the same economic profit. Owners who retain profits in the LLC, or whose distributions do not track annual profits, are most exposed.

Anson: helpful, but handle with care

In Anson v HMRC (2015) the UK Supreme Court held that a UK-resident member of a Delaware LLC was entitled to double-tax relief, essentially because — under that LLC's agreement and Delaware law — the profits belonged to the members as they arose, so the US and UK were taxing the same income.

It is tempting to read that as "LLCs are transparent now". That is not how HMRC has applied it. Its published guidance treats Anson as turning on its specific facts and states that HMRC will continue, in general, to regard US LLCs as opaque, considering other cases on their own terms. So Anson defines an argument — one that depends on the LLC agreement, the governing state's law and the actual profit entitlements — rather than a safe harbour. Taxpayers have run it with mixed practical results, and the position is genuinely case-law-dependent. Anyone relying on it should do so on advice, with the documents analysed, not by analogy.

When an LLC is the wrong vehicle for a UK resident

Patterns we see repeatedly:

For a UK resident starting fresh, an LLC is rarely the natural first choice; a UK company, sole-trader registration or, where US presence genuinely matters, a US corporation may fit better. The comparison is mapped in our cross-border structuring guide — and the mirror-image problem, a UK company owned by a US person, has its own guide.

The way through

If you already hold an LLC interest as a UK resident, the work is: establish how each country currently characterises the entity and your income; quantify the actual double-tax exposure on your real numbers; then compare the realistic options — managed distributions, a classification election, or a different vehicle. We do that as one exercise across both returns, with fixed fees agreed up front.