UK Ltd vs US LLC: which should you form?

Form a US LLC if your customers, bank, or payment flows are American and you want pass-through simplicity. Form a UK Ltd if you sell into the UK or EU, want a recognisable company on a public register, and prefer predictable corporation tax over a US filing burden.

That’s the short version. The longer answer turns on six things: who your customers expect to pay, how each is taxed, banking and Stripe access, reputation, cost, and the admin you’ll actually do every year. Here’s how the two stack up for a founder running the company from outside both countries.

The fast comparison

Both are real, respected, limited-liability companies you can own from anywhere with no local residency. The differences are in the details that hit your bank account.

Who your customers and processors expect

This is the deciding factor for most founders, and it’s the one people skip.

If you sell B2B SaaS, run an agency, or invoice American companies, a US entity removes friction. US clients are used to paying US businesses, your invoices carry an EIN, and Stripe US pays out in dollars to a US bank. A foreign entity can still bill US customers, but you’ll meet more “can you send a W-9?” moments than you’d like.

If your buyers are in the UK or EU, the calculus flips. A UK Ltd appears on the public Companies House register, which EU procurement teams and marketplaces treat as a trust signal. You charge in pounds or euros, settle through Stripe UK, and avoid the currency conversion that eats into a US-based payout. For physical goods sold into the UK or EU, a UK Ltd also sits more naturally inside VAT and customs.

How each is taxed

Tax is where the two diverge most, and where the US “simplicity” comes with a catch.

A single-member US LLC is a disregarded entity. The company itself doesn’t pay federal income tax; profit is treated as yours. For a non-resident with no US presence and no income effectively connected to a US trade or business, that can mean no US federal income tax at all. The catch is the paperwork: a foreign-owned single-member LLC must file Form 5472 attached to a pro-forma 1120 every year, and the penalty for missing it is steep.

A UK Ltd is a separate taxpayer. It pays UK corporation tax on its profits, files annual accounts with Companies House, and files a CT600 with HMRC. There’s no 5472 equivalent and no five-figure penalty waiting on a single missed information return. For a founder who’d rather pay a known rate of tax than manage a US disregarded-entity filing, that predictability is worth real money. Whether you owe UK tax personally depends on your own residency, so get that checked.

Banking, Stripe, and getting paid

Both entities can open online business accounts and both work with Stripe. The question is which currency rail you want to live on.

1. Decide your primary currency

   If most revenue is USD, the US LLC plus a US business account and Stripe US keeps you on one rail. If it’s GBP or EUR, the UK Ltd does the same. Mixing entity and currency means conversion fees on every payout.

2. Match the bank to the entity

   US-friendly fintechs open accounts for non-resident-owned LLCs using your EIN. UK fintechs open business accounts for UK Ltds, often faster, since the company is already on a public register they can verify.

3. Connect the right Stripe

   Stripe US needs a US entity and EIN; Stripe UK needs a UK company. Both support recurring billing and global cards — the difference is payout currency and where your settlement bank sits.

Reputation, privacy, and cost

Reputation cuts both ways. A US LLC signals “American company” to US buyers; a UK Ltd signals “established, verifiable” to UK and EU buyers. Neither is universally more credible — it depends on who’s reading your invoice.

Privacy is a clearer split. Form a US LLC in Wyoming or New Mexico and your name as owner stays off the public record. A UK Ltd is the opposite by design: directors, registered office, and people with significant control are searchable by anyone on Companies House. If keeping your name private matters, that alone may decide it.

On cost, a UK Ltd is usually cheaper to keep alive year to year — a small confirmation statement fee and accounts, with no franchise tax. A US LLC’s state fees are modest too, but factor in annual Form 5472 preparation, which is where the real cost of the US route shows up.

So, which should you form?

Here’s the framework, stated plainly.

Form a US LLC if your customers or contracts are American, you want USD payouts and Stripe US, you value keeping your ownership private, and you’re comfortable that Form 5472 gets filed every year without fail. Start with how to form a US LLC as a non-resident.

Form a UK Ltd if you sell into the UK or EU, you want GBP or EUR settlement, you’d rather pay a known corporation tax rate than manage a US information return, and a public, verifiable company helps you win trust. Start with forming a UK Ltd from abroad.

If your business genuinely straddles both markets, founders sometimes run both — a US LLC for the US arm and a UK Ltd for the UK/EU arm. That doubles the admin, so only do it when the revenue in each market justifies a separate entity. For most people starting out, pick the one your money is in and move.