There is no single "UK gate"
The most common misconception overseas brands carry into UK expansion is that there is one big permission to obtain — a market-entry licence, a UK company, an approval. There isn't. UK expansion is a set of independent decisions that can largely happen in parallel: tax registration, an import identity, where your stock sits, who fulfils your orders, and any rules attached to your specific products. Some are legally required the moment you sell; others are strategic and depend on your volumes and margins.
The useful way to think about it is two lists: what you must do to sell compliantly, and what you get to choose.
What you must do
- Register for UK VAT — usually from your first sale. If your business has no UK establishment (a genuine staffed UK presence or UK-based management), you are a Non-Established Taxable Person, and the normal VAT-registration threshold does not apply to you. In most cases that means registering before your first taxable UK sale, not after passing a turnover figure. This is the step brands most often get wrong — see UK VAT for overseas sellers.
- Get a GB EORI number if you import as the importer of record. It is the identifier UK customs uses for your shipments. An overseas business can hold one; if you are not eligible yourself, a customs agent can act for you. Detail in UK customs clearance.
- Meet product-specific rules. Regulated categories carry their own obligations — cosmetics need a UK-established Responsible Person, supplements have labelling and claims rules. See selling cosmetics and selling supplements.
What you get to choose
- Whether to form a UK company. You generally do not need to incorporate a UK company simply to sell to UK customers — see do you need a UK company?
- Where to hold stock. You can ship cross-border into the UK, hold UK stock, or run dual UK+EU stock — each with trade-offs in speed, cost and customs exposure. See UK vs EU: where to hold stock.
- Who fulfils your orders. If you hold UK stock, an FHDDS-accredited fulfilment partner handles storage, pick-and-pack and UK carriers, and keeps you clear of the due-diligence rules that apply to overseas-seller goods.
A sensible sequence
No government page prescribes an order, but this sequence works for most brands: (1) decide your sales channel — your own store, a marketplace, or wholesale, because it changes who accounts for VAT; (2) resolve VAT registration and your establishment position before your first taxable UK sale; (3) decide your stock-location strategy; (4) if holding UK stock, get a GB EORI and choose an FHDDS-accredited fulfilment partner; (5) clear any product-specific compliance gates; (6) go live, with UK returns, VAT invoicing and ongoing filings in place. Treat this as structure, not law — the detail lives in the guides linked above.
Frequently Asked Questions
Do I need to set up a UK company to sell in the UK?
Usually not. Companies House only requires an overseas company to register when it has a physical presence in the UK, such as a place of business or branch. Selling online to UK customers without a staffed UK office does not, by itself, trigger that. You may still need to register for UK VAT and hold a GB EORI, which are separate obligations from company formation.
When do I need to register for UK VAT as an overseas seller?
Typically from your first taxable UK sale. If your business has no UK establishment you are a Non-Established Taxable Person, and the standard UK VAT-registration threshold does not apply — so there is effectively no turnover cushion before you must register. The exact position depends on how and where you sell; our overseas-VAT guide walks through it.
What's the hardest part of UK expansion for a US brand?
Usually the VAT and establishment questions, not the logistics. Brands tend to assume they need a UK company (often they don't) and assume VAT only starts after a threshold (as a Non-Established Taxable Person, it usually doesn't). Getting those two right early avoids the most common compliance problems. The fulfilment side — stock, pick-and-pack, carriers — is comparatively straightforward with the right partner.
Can I sell into the UK without holding stock there?
Yes. You can ship cross-border into the UK from an overseas location, though that affects delivery speed and how customs and VAT are handled per parcel. Many growing brands eventually hold UK stock to speed up delivery and simplify the customer experience. It is a strategic choice, not a legal requirement — our UK-vs-EU stock guide covers the trade-offs.