UK VAT for non-resident and overseas businesses: when you must register

A single sale into the UK can trigger a VAT registration obligation for an overseas business, and the threshold that applies is not the one most people expect. Where a UK-established business benefits from a GBP 90,000 annual turnover threshold before VAT registration becomes compulsory, a business with no UK establishment faces a very different rule: the threshold is effectively nil. That distinction catches out a surprising number of foreign sellers, SaaS providers, and e-commerce brands every year. Whether you are shipping goods from a warehouse in the Netherlands, licensing software to UK customers, or selling through an online marketplace, understanding your UK VAT position before you start trading is not optional. This guide sets out the core rules as they stand in 2026, explains the critical difference between established and non-established status, and flags the practical steps you need to take to stay compliant. The rules here are directional: VAT is complex, and you should confirm your specific position with a qualified UK VAT adviser.

Do overseas businesses need to register for UK VAT?

Yes, and often sooner than they think. If your business makes taxable supplies in the UK and you have no UK establishment, you must register for VAT from the very first pound of taxable turnover. There is no minimum threshold. This is the single most important rule for any overseas business selling into the UK market, and it applies regardless of where you are incorporated, where your staff sit, or how small the initial transaction might be.

The obligation arises under the concept of a "non-established taxable person," or NETP. HMRC treats you as an NETP if you have no fixed establishment, no place of business, and no usual place of residence in the UK. Because the standard GBP 90,000 registration threshold is reserved exclusively for UK-established businesses, an NETP that makes even a single taxable supply in the UK must register immediately. Ignoring this does not make the liability disappear: it creates a compliance debt that accrues interest and penalties.

The NETP rule: a nil registration threshold

The NETP classification is the mechanism that drives the nil threshold. A non-established taxable person is defined as any business that makes taxable supplies in the UK but does not have a UK establishment. "Establishment" here means a fixed place of business with the human and technical resources to make or receive supplies: a registered address alone does not count.

For NETPs, HMRC's position is unambiguous. The GBP 90,000 threshold simply does not apply. You register from day one. This catches businesses that assume they can trade below the threshold before worrying about VAT, as many do when entering a new market. The practical consequence is that you need to have your NETP VAT registration in place before you begin making UK taxable supplies, not after you hit a revenue milestone. Cosmos regularly works with overseas businesses that discover this obligation only after they have already been trading, and retrospective registration is significantly more painful than getting it right from the outset.

Established versus non-established: why forming a UK company changes it

Here is where planning makes a real difference. If your business incorporates a UK subsidiary or otherwise establishes a genuine UK presence with staff and operational substance, it is no longer treated as an NETP. Instead, it falls under the standard VAT registration rules and benefits from the GBP 90,000 annual threshold.

This is a legitimate planning point, not a loophole. A UK-incorporated company with real commercial substance: employees, an office, decision-making authority within the UK: qualifies as an established business. That means it can trade up to GBP 90,000 in taxable turnover before mandatory VAT registration kicks in. For businesses expecting modest initial UK revenues, this can provide a genuine runway.

The key word, though, is substance. HMRC will look through a brass-plate company with no real UK operations. Simply registering a company at Companies House and appointing a nominee director does not create establishment. You need genuine economic activity in the UK: staff making decisions, premises being used, and supplies being made from that base. If you are considering this route, get specific advice on what constitutes sufficient establishment for VAT purposes.

When a UK sale is a UK taxable supply

Not every sale by an overseas business to a UK customer triggers UK VAT. The determining factor is the "place of supply" rules, which vary depending on whether you are supplying goods or services, and whether your customer is a business or a consumer.

For goods, the place of supply is generally where the goods are located at the time of supply. If you hold stock in a UK warehouse or fulfilment centre, sales from that stock are UK taxable supplies. Goods shipped directly from overseas to UK customers involve import VAT, which follows different rules depending on value and who handles customs declarations.

For services, the rules split between B2B and B2C. Most B2B services are taxed where the customer belongs, meaning a service supplied to a UK business is typically a UK supply. B2C services follow the supplier's location in many cases, but there are significant exceptions, particularly for digital services. The place of supply rules are detailed and category-specific, so treat any general summary as a starting point rather than a final answer.

Goods, digital services and the marketplace rules

Three areas deserve particular attention because they catch the majority of overseas businesses selling into the UK.

• Goods stored in the UK: If you use a UK fulfilment centre, Amazon FBA warehouse, or third-party logistics provider, your sales from that stock are UK taxable supplies. Registration is required before you begin selling.
• Digital services to UK consumers: Since the UK's post-Brexit rules took full effect, overseas businesses supplying digital services (streaming, software subscriptions, e-books, online courses) to UK consumers must register for and charge UK VAT. The nil NETP threshold applies here too.
• Online marketplace deemed supplier rules: For certain sales by overseas sellers, the marketplace itself is treated as the supplier for VAT purposes. This means platforms like Amazon or eBay may account for VAT on your behalf. However, this does not always remove your own registration obligation, and the rules differ depending on the value of consignments and where goods are located. This area is genuinely complex and changes periodically: get specific advice for your sales model.

For imported goods, consignments valued at GBP 135 or below follow a specific low-value regime where VAT is charged at the point of sale rather than at the border. Above that threshold, import VAT applies at customs. The interaction between these rules and marketplace obligations requires careful analysis for each business.

Registering, charging and reclaiming UK VAT

Once you determine that registration is required, the process involves several practical steps.

• Apply to HMRC for a UK VAT registration, specifying that you are a non-established taxable person. Processing times vary, but HMRC's target is around 30 working days for straightforward NETP applications.
• You will need a UK bank account in most cases, which can be a stumbling block for overseas businesses without an existing UK banking relationship.
• HMRC may require you to appoint a tax representative or agent, particularly if your business is established outside a country with a mutual assistance agreement.
• Once registered, you charge UK VAT at the standard rate of 20% on taxable supplies (reduced rates of 5% and 0% apply to specific categories of goods and services).
• You must file VAT returns digitally under Making Tax Digital (MTD), typically quarterly, using MTD-compatible software.
• You can reclaim input VAT on costs incurred for the purpose of making taxable supplies in the UK, which can offset some of the compliance burden.

The filing and payment deadlines are strict. Late returns and late payments attract automatic surcharges and interest. If you are unfamiliar with UK VAT compliance, working with a specialist who handles overseas registrations is strongly advisable.

Getting it right from the first sale

The cost of getting UK VAT wrong is not just financial: it creates operational drag that compounds over time. Retrospective registration means you owe VAT on sales you have already made, potentially without having charged it to customers, which means the liability comes straight out of your margin. Penalties for late registration are calculated as a percentage of the VAT due, and HMRC's interest charges run from the date the VAT should have been paid.

The practical approach is to assess your UK VAT position before you make your first UK taxable supply. Map your supply chain: where are goods located, who are your customers, what type of services are you providing, and are any marketplace rules shifting the VAT obligation? If you are an NETP, build the registration timeline into your market-entry plan. If you are considering UK incorporation to access the GBP 90,000 threshold, ensure the company will have genuine substance. Cosmos works with overseas businesses at this planning stage, coordinating UK VAT registration and compliance through licensed UK partners so that the obligation is handled before it becomes a problem.

How Cosmos helps

Cosmos coordinates UK VAT registration and ongoing compliance for overseas businesses through its network of licensed UK tax and accounting partners. The service covers NETP registration applications, MTD-compliant filing, and the practical logistics that trip up foreign businesses: UK bank account setup, agent appointments, and liaising with HMRC on your behalf.

Rather than leaving you to find and vet UK VAT specialists independently, Cosmos matches your business with the right partner based on your sales model, jurisdiction, and complexity. This is particularly valuable for businesses selling across multiple channels or dealing with marketplace deemed-supplier rules, where the compliance picture shifts depending on how and where you sell. If you are an overseas business planning to sell into the UK, or you suspect you should already be registered, Cosmos can help you assess your position and get compliant quickly.

Frequently asked questions

Do I need to register for UK VAT if I only sell through Amazon or another marketplace?

Possibly not, if the marketplace is the deemed supplier for VAT purposes on your sales. But this depends on where your goods are located, the value of consignments, and the specific platform rules. Many sellers still need their own VAT registration even when selling through a marketplace. Check your specific situation with a UK VAT adviser.

Can I reclaim UK VAT if I am registered as an NETP?

Yes. Once registered, you can reclaim input VAT on costs related to your UK taxable supplies, just as a UK-established business would. This includes VAT on goods, services, and imports used for your taxable activity.

What happens if I have been selling in the UK without registering?

You should register as soon as possible. HMRC can assess VAT on all taxable supplies made since the date you should have registered, plus penalties and interest. Voluntary disclosure before HMRC contacts you typically results in lower penalties than being discovered during an investigation.

Does forming a UK company automatically give me the GBP 90,000 threshold?

Only if the company has genuine UK establishment: real staff, premises, and operational activity. A shell company with no substance will not change your NETP status in HMRC's eyes.

VAT rules change, and the information in this guide reflects the position as of early 2026. Always confirm your obligations with a qualified UK VAT adviser before acting. If you need help coordinating your UK VAT registration or compliance, get in touch with Cosmos to connect with the right specialists for your business.

This is general information, not tax, legal or accounting advice. Cross-border tax rules differ by country and change frequently; confirm your position with a qualified adviser in the relevant jurisdiction before acting.