Clear Guidance to UK VAT and Customs Duties for Cross-Border E-commerce Sellers

UK VAT and customs duties directly affect pricing, checkout setup, customs clearance, profit margins, and customer experience. Cross-border ecommerce sellers should clearly separate low-value consignments of GBP 135 or less, higher value imports, direct website sales, marketplace sales, and UK stock-based sales.

Guidelines to be aware of:

• Goods with an intrinsic value of GBP 135 or less are usually subject to UK VAT at checkout, not import VAT at the border.
• Goods above GBP 135 are usually subject to import VAT and possible customs duty when they enter the UK.
• UK businesses normally register for VAT once they exceed the VAT registration threshold, currently GBP 90,000.
• Overseas sellers may need UK VAT registration from the first taxable UK sale or when they hold stock in the UK.
• Online marketplaces may collect VAT as deemed suppliers for certain sales, but sellers remain responsible for product data, stock imports, customs duties, and records.
• Correct VAT rates, commodity codes, customs values, and proof of origin help prevent double taxation, penalties, parcel blockages, and customer complaints.

Practical summary

UK VAT and Customs Duties

Since Brexit, the UK has applied its own VAT and customs rules. Sellers can no longer assume that EU VAT rules apply to UK sales.

For e-commerce sellers, the correct treatment depends mainly on:

• Where the seller is established
• Where the goods are located at the time of sale
• Whether the customer is in Great Britain or Northern Ireland
• Whether the sale is made through a website or a marketplace
• Whether the goods are worth GBP 135 or less
• Whether the customer is a consumer or a VAT-registered business

A mistake in any of these areas can lead to underpaid VAT, duplicate VAT charges, import delays, or unhappy customers.

Who needs to register for UK VAT

UK-based sellers

A UK-established business should normally register for VAT when its VAT taxable turnover exceeds GBP 90,000 in a rolling 12-month period.

Once registered, the seller should:

• Charge UK VAT on taxable sales
• Submit VAT returns
• Pay VAT to HMRC
• Keep proper VAT records and invoices

A UK business may also register voluntarily below the threshold, for example, to reclaim input VAT.

Overseas sellers

For overseas sellers, the position is stricter. In many cases, there is no VAT registration threshold.

A non-UK seller may need UK VAT registration if it:

• Sells taxable goods directly to UK customers
• Holds stock in the UK
• Uses a UK warehouse or fulfilment centre
• Uses Amazon FBA or a similar UK fulfilment structure
• Imports goods into the UK and then sells them locally

Example:

A US company sells accessories from its own website to UK consumers. The goods are shipped from the US, and many orders are below GBP 135. The seller may need UK VAT registration from the first taxable UK sale and may need to charge UK VAT at checkout.

UK VAT rates and product setup

Most physical goods are subject to the standard UK VAT rate of 20 percent. Some goods may be zero-rated or reduced-rated, such as certain books or children’s clothing.

The seller should not apply one VAT rate across all products without checking. Product classification matters because it affects both VAT and customs.

Sellers should map: 

• Product SKU
• UK VAT rate
• Commodity code
• Country of origin
• Customs value
• Marketplace tax category, if applicable

Example:

A seller offers adult clothing, children’s clothing, and printed books. Applying 20 percent VAT to the full catalogue may overcharge customers on some products. Applying zero percent to everything may create VAT exposure. Each category needs a separate VAT setup.

Low-Value Goods and Import Relief 

For goods with an intrinsic value of GBP 135 or less, UK VAT is usually charged at the point of sale.

Intrinsic value means the value of the goods only. It normally excludes shipping and insurance, unless these are included in the goods price.

For direct sales to UK customers, the seller usually needs to:

• Register for UK VAT if required
• Charge UK VAT at checkout
• Show VAT clearly on the invoice or receipt
• Mark the customs documentation correctly
• Report the VAT in UK VAT returns

Example:

A US seller sells a gadget for GBP 120 to a consumer in England through its own website. The goods are shipped from the US. Since the intrinsic value is below GBP 135, UK VAT is normally charged at checkout. Import VAT should not be collected again at the border if the documentation is handled correctly.

The goods are part of the Low-Value Import relief scheme, so the clearance is faster. 

Goods above GBP 135

For consignments above GBP 135, the usual import model applies.

This means:

• Import VAT is due when the goods enter the UK
• Customs duty may also apply
• The duty rate depends on the commodity code and origin
• The importer of record is responsible for import obligations

There is also a separate VAT issue on the onward sale. If goods are imported into the UK and then sold to a UK customer, that sale may be treated as a domestic UK supply.

Example:

A seller imports products worth GBP 500 into a UK warehouse. Import VAT is paid when the goods enter the UK. Later, the seller sells the goods to a UK consumer for GBP 600 and charges UK VAT on that sale. If the seller is VAT registered and entitled to recover input VAT, import VAT may be reclaimed through the VAT return.

Delivered at Place(DAP) or Delivered Duty Paid(DDP) 

Who pays import charges?

The shipping terms strongly affect the customer experience.

Delivered Duty Paid

Under DDP, the seller usually pays import VAT, customs duty, and clearance charges. The customer receives the parcel without additional tax charges on delivery.

This is often better for customer experience, but the seller should price the goods correctly to protect the margin.

However, in most of the cases, to prevent any potential non-UK VAT compliance triggers. To avoid UK compliance, foreign e-commerce sellers often designate the UK buyer as the importer of record under “Delivered at Place” (DAP) terms.  

Delivered At Place

Under DAP, the customer pays import VAT, duties, and courier handling fees on delivery.

This may be cheaper for the seller, but on some occasions creates complaints, refused deliveries, returns, and negative reviews

Practical recommendation:

For B2C ecommerce, all-inclusive pricing is usually better where commercially possible. If DAP is used, the checkout and FAQ should clearly explain that the customer may pay import charges on delivery.

Online marketplaces

Marketplaces such as Amazon, eBay, and Etsy may be treated as deemed suppliers for UK VAT in certain cases.

For many low-value sales by overseas sellers, the marketplace may:

• Calculate UK VAT
• Charge VAT to the customer
• Report and pay VAT to HMRC

However, this does not mean the seller has no responsibilities.

The seller still needs to:

• Provide accurate product tax categories
• Use correct commodity codes
• Keep marketplace transaction reports
• Manage import VAT and duty if stock is brought into the UK
• Check whether UK VAT registration is still required due to UK stock

Example:

A US seller sells a GBP 120 product through Amazon UK. Amazon may collect UK VAT as the deemed supplier. However, if the seller has already imported stock into a UK Amazon fulfilment centre, the seller may still need UK VAT registration and should manage import VAT.

Stock held in the UK

Holding stock in the UK is one of the clearest VAT registration triggers for overseas sellers.

If a non-UK seller stores goods in a UK warehouse or fulfilment centre, it may be making domestic UK supplies. This can create a UK VAT registration obligation even if sales volumes are low.

This applies to:

• Amazon FBA stock
• Third-party logistics warehouses
• Own warehouse arrangements
• Stock transferred into the UK before the sale

Practical point:

Do not look only at sales value. Look at where the goods are physically stored. UK stock often changes the VAT position immediately.

Customs duties and commodity codes

Customs duty is separate from VAT. Unlike VAT, customs duty is usually not recoverable. It is a real cost that affects the margin.

The duty amount depends mainly on:

• Commodity code
• Customs value
• Country of origin
• Available trade agreement relief
• Supporting origin documentation

Commodity codes define how customs authorities classify the product. The wrong code can result in incorrect duty, clearance delays, or HMRC questions.

Sellers should keep:

• Product classification records
• Supplier invoices
• Origin declarations
• Customs declarations
• Import VAT statements
• Marketplace reports, where relevant

Example:

A seller imports textile products into the UK. If the wrong commodity code is used, the duty rate may be incorrect. If the seller claims preferential duty treatment, it should hold proper proof of origin. Without evidence, HMRC may deny the relief.

Great Britain and Northern Ireland

Great Britain and Northern Ireland should not always be treated the same.

Northern Ireland follows certain EU-style rules for goods. This can affect VAT treatment, especially where goods move between Great Britain, Northern Ireland, the EU, and non-EU countries.

Practical point:

Sellers shipping to both GB and NI should separate these flows in their systems. A single “UK” tax rule may not be accurate in all cases.

B2C and B2B sales

For B2C sales, UK VAT is usually charged to the customer where the UK VAT rules require it.

For B2B sales, the treatment may depend on whether the customer provides a valid UK VAT number and where the goods are located at the time of sale.

Sellers should:

• Capture VAT numbers at checkout
• Validate and store VAT numbers
• Apply different invoice logic for B2C and B2B customers
• Keep evidence supporting the VAT treatment

Example:

A UK VAT-registered business buys goods from an overseas seller. If the goods are already in the UK, this may be a domestic UK supply and UK VAT may be charged. If the goods are imported, the import structure and the importer of record should be reviewed separately.

Practical compliance checklist

A practical UK VAT and customs review should cover the following steps.

1. Map your sales flows

Identify:

• Customer location
• Stock location
• Shipping country
• Sales channel
• Delivery terms
• Product types

2. Check VAT registration obligations

Review whether UK VAT registration is required because of:

• UK turnover
• Direct UK sales
• UK stock
• Marketplace activity
• Import and resale structure

3. Split orders by value

Separate:

• Consignments of GBP 135 or less
• Consignments above GBP 135

This is essential because the VAT collection point may differ.

4. Configure checkout correctly

Make sure your system can:

• Charge UK VAT where required
• Apply correct VAT rates
• Separate B2C and B2B sales
• Handle marketplace and direct website sales separately
• Show clear tax information to customers

5. Review import model

Decide:

• Who is the importer of record
• Whether DDP or DAP is used
• Who pays import VAT and duty
• Whether import VAT can be reclaimed
• How duties are built into pricing

6. Keep proper records

Keep:

• VAT invoices
• Customs declarations
• Import VAT statements
• Commodity code records
• Proof of origin
• Marketplace reports
• Customer VAT number evidence

7. Review regularly

Review the setup at least once a year, or earlier if:

• Sales volumes increase
• New products are added
• Stock locations change
• New marketplaces are used
• UK or customs rules change

Challenges Under UK VAT and Customs Duty Regimes

The most common UK VAT and customs issues are practical rather than theoretical. Non-compliance from the beginning may, in some cases, lead to severe fines and penalties. 

Sellers often make mistakes, such as:

• Assuming small overseas sellers do not need UK VAT registration
• Treating each item separately instead of the full consignment value
• Failing to charge VAT at checkout for low-value goods
• Charging VAT again where the marketplace has already collected it
• Using incorrect commodity codes
• Not marking parcels correctly when VAT was collected at checkout
• Under-declaring customs values to stay below GBP 135
• Ignoring UK stock held by fulfilment providers
• Not keeping import VAT evidence
• Surprising customers with delivery charges

The best way to prevent these issues is to build VAT and customs logic into the sales process before goods are shipped.

How 1StopVAT can support sellers

We help e-commerce sellers manage UK VAT and customs obligations practically.

Our support may include:

• UK VAT registration for overseas and UK-based sellers
•  Review of sales flows and fulfilment structures
• Ongoing UK VAT return preparation and filing
• VAT treatment review for direct website and marketplace sales 
• Guidance on low-value goods and high-value imports
• Review of UK stock implications
• Support with VAT records and compliance processes

Example:

A US seller used both its own website and Amazon UK. Some website orders had VAT collected incorrectly, while marketplace orders were being mixed with direct sales in the accounting records. After separating the sales flows, checking the GBP 135 threshold, and aligning marketplace VAT reports with VAT return data, the seller reduced VAT errors and customer complaints.

Final Remarks

UK VAT and customs duties should be part of the e-commerce operating model, not an afterthought.

The core rules are simple:

• Goods of GBP 135 or less usually require VAT at checkout
• Goods above GBP 135 usually fall under import VAT and customs duty rules
• Overseas sellers may need UK VAT registration from the first taxable sale or from holding UK stock
• Marketplaces may handle VAT in some cases, but not all obligations
• Commodity codes, origin proof, customs values, and records should be accurate

We are here to assist you with reviewing the UK VAT position, registering where required, and managing ongoing compliance with confidence.

Frequently asked questions