A Shenzhen electronics brand ships £40 chargers to UK buyers through its own website. A Singapore SaaS company sells subscriptions to British freelancers. A Mumbai design studio invoices a London agency for monthly retainer work. Three very different businesses — and each one has a different UK VAT position, decided not by what they sell, but by who they sell to, how the goods move, and which platform sits between them and the customer.
UK VAT for overseas businesses is one of those areas where the instinct to "wait until we're bigger" is expensive. The domestic registration threshold most people have heard of does not apply to non-established sellers in many common scenarios. Below is a calm walk-through of where the lines actually sit.
The threshold that doesn't apply to you
The UK has a well-known VAT registration threshold for established UK businesses — the figure HMRC reviews periodically and that most British accountants quote in passing. Overseas sellers often assume they benefit from the same allowance. In several important cases, they do not.
A business with no fixed establishment in the UK ("non-established taxable person", or NETP in HMRC's language) generally has a nil registration threshold for taxable supplies made in the UK. In other words, the moment you make your first UK-taxable supply, you may already be required to register. The UK VAT threshold you read about online is largely a domestic concept; non-resident VAT exposure begins much earlier.
The practical question, then, is not "have I crossed a threshold?" but "is what I am doing a UK-taxable supply at all?" That depends on three things: the nature of the supply, the location of the customer, and — for goods — where the stock physically sits.
Goods: the £135 line and the role of marketplaces
For goods sold to UK consumers, the post-Brexit regime draws a hard line at a consignment value of £135.
- Consignments of £135 or less, sold directly to a UK consumer from overseas, are generally subject to UK supply VAT at the point of sale rather than import VAT at the border. The overseas seller is expected to register, charge UK VAT, and remit it.
- Consignments above £135 continue to be treated as imports. Import VAT (and potentially customs duty) arises at the border, and the question of who is the importer of record drives who can recover it.
- Sales through an online marketplace shift the obligation. Where an OMP facilitates the sale, the marketplace itself is generally treated as the supplier for UK VAT purposes on lower-value consignments and on goods already in UK warehouses sold by overseas sellers. The marketplace charges and accounts for the VAT; the underlying seller's invoice to the marketplace is typically zero-rated or outside the scope, depending on the flow.
- Goods stored in UK fulfilment centres — including FBA stock — are a separate trigger. Once your inventory sits on UK soil, you are making domestic supplies from UK stock, and registration is almost always required regardless of sales volume.
- B2B sales to VAT-registered UK businesses can sometimes use the reverse charge, but the rules differ between goods and services and should not be assumed.
The most common mistake we see is an overseas seller who lists on both a marketplace and their own Shopify storefront, assumes the marketplace "handles VAT", and overlooks the direct-to-consumer channel entirely. The two channels are taxed separately.
Digital services: where the customer sits decides everything
For VAT digital services UK rules, the place-of-supply test is customer-based. If you sell electronically supplied services — software subscriptions, streaming, e-books, online courses delivered with minimal human intervention, cloud tools — to a UK consumer, the supply is UK-located and UK VAT applies. There is no de minimis allowance for non-established suppliers; the first £1 of B2C digital sales into the UK is in scope.
Sales to UK businesses are different. A B2B digital supply to a VAT-registered UK customer is generally handled by that customer under the reverse charge, and the overseas supplier does not register on the strength of those sales alone. The burden, then, is evidence: you need a defensible way to distinguish business customers from consumers — VAT numbers, billing context, and the commercial nature of the relationship.
Mixed catalogues are where things get awkward. A platform selling both to enterprise buyers and to individual hobbyists in the UK will likely have a UK VAT registration obligation in respect of the consumer tail, even if 95% of revenue is B2B.
Postponed VAT accounting: cash-flow oxygen for importers
If your model involves importing goods into the UK above the £135 line — whether you are the importer of record yourself, or you are setting up a UK entity to be — postponed VAT accounting (PVA) is the mechanism that stops import VAT from sitting on your balance sheet as a cash payment at the border.
Under PVA, a UK VAT-registered importer declares import VAT on the VAT return and recovers it on the same return, subject to the normal input tax rules. No cash leaves the business at the point of import. For overseas brands moving meaningful volumes into UK fulfilment, this is the difference between healthy and strangled working capital. Two practical points are worth flagging:
- PVA requires a UK VAT registration and the importer to elect for it on the customs declaration. Your freight forwarder needs to be briefed.
- Monthly postponed import VAT statements (downloadable from HMRC's customs system) are the primary evidence — keep them with your VAT records.
Intermediaries, agents and the fiscal representative question
Non-resident VAT compliance often runs through intermediaries, and their obligations are not symmetrical with yours.
- Online marketplaces carry deemed-supplier liability in the scenarios above and will ask you for evidence of VAT registration, UK establishment status, and sometimes a UK bank account.
- Freight forwarders and customs agents act on your instructions for import declarations; the importer of record remains legally responsible for the entries made in their name.
- Payment processors and SaaS billing platforms are increasingly asked to collect tax-status information but are not generally your VAT agent.
- Fiscal representatives are not mandatory for most non-UK businesses registering for UK VAT — unlike several EU jurisdictions — but HMRC may in some cases require a UK-based tax representative or security. Voluntarily appointing a UK agent for correspondence is common and sensible.
The thread running through all of this: the intermediary's role narrows or widens your obligation, but it rarely eliminates it. Read the contract, not the marketing page.
FAQ
Q: We're a Hong Kong company selling a £29/month SaaS product to UK users. Do we need to register for UK VAT from day one? A: If your UK users include consumers (not just VAT-registered businesses), then yes — the nil threshold for non-established suppliers of B2C digital services means registration is triggered by the first such sale. B2B sales to VAT-registered UK customers can usually rely on the reverse charge.
Q: Our goods are sold only through Amazon UK and we never hold UK stock ourselves. Is the marketplace's VAT account enough? A: For consignments where Amazon is the deemed supplier, yes for those flows — but the moment you use FBA or any UK warehouse, your inventory sitting in the UK creates a separate registration obligation in your own name, irrespective of marketplace coverage.
Q: Can we use postponed VAT accounting before we've completed VAT registration? A: No. PVA requires an active UK VAT registration and the correct election on each customs declaration. Until registration is in place, import VAT is payable at the border in the normal way, which is why timing the registration ahead of first imports matters.
If you would like a structured review of where your UK sales sit on this map — registration triggers, marketplace flows, PVA setup and intermediary contracts — Serene Jade's Enterprise Landing team handles UK VAT registration and ongoing compliance for overseas sellers as part of one-stop UK market entry.