How Does UK Customs Clearance Work? A Practical Guide for International Sellers

So, you’ve already done your market research, you know there’s demand for your product in the UK, and you’ve even organized a local fulfillment center. As British people would say, there’s just one rather bothersome hurdle to cross: UK customs clearance.

It’s fair to say that most customs procedures can be “bothersome,” especially for the inexperienced. However, they serve a purpose, and despite how it might appear, they really aren’t trying to catch you out. That said, there are a lot of details you need to get right.

Here’s a very simple version: to import into the UK you need a UK EORI number, the right documentation, a customs declaration filed through the Customs Declaration Service (CDS), and payment of any applicable duties and VAT.

There are also several decisions you need to make before you ship anything, relating to VAT registration, Incoterms, and whether you’ll be acting as your own importer of record.

There’s a fair bit to cover, so grab a coffee. Let’s work through it one step at a time.

What do you need to clear UK customs? TL;DR:

• A UK EORI number — mandatory for all importers, free to apply for
• VAT registration — required in most cases, but the specifics depend on your business model
• Correct HS/commodity codes for every product line
• Core documents: commercial invoice, packing list, and bill of lading or airway bill
• A customs declaration submitted via CDS (the Customs Declaration Service)
• Payment of import duties and VAT at the point of entry

Read about Wayfindr’s  Logistics Management Services

Do You Need a UK EORI Number?

Every business moving goods into or out of the UK needs an EORI (Economic Operator Registration and Identification) number. It’s how His Majesty’s Revenue and Customs (HMRC) tracks your import and export activity, and you’ll need it at multiple points in the customs process: on your customs declaration, in your commercial invoice, and when engaging a broker or freight forwarder.

Applying is free and straightforward via GOV.UK’s EORI registration page, and most applicants receive their GB EORI number immediately. HMRC may take up to 5 working days if additional checks are required, so apply before your first shipment rather than after it’s sitting at the port.

One thing worth flagging if you’re selling into Europe: your EU EORI is a separate number and won’t work for UK imports. Post-Brexit, they’re entirely distinct systems.

For a broader picture of what you can expect when bringing goods into the UK from overseas, including freight options, landed cost calculations, and common shipping mistakes, it’s worth reading this article’s sister guide.

Do You Need to Register for UK VAT?

This is where some guidance on UK imports can be misleading. A lot of articles state flatly that VAT registration is mandatory if you’re importing into the UK, but that’s not entirely correct. Whether you need to register and what that obligation looks like depends on your business model.

There’s an additional rule that catches a lot of DTC e-commerce brands off guard. For goods valued under £135, VAT is collected at your point of sale rather than at the border.

This means that if you’re selling directly to UK consumers and your individual orders come in under £135, you’re required to register for UK VAT and charge it at checkout, regardless of your total UK turnover.

It’s a different mechanism from the standard threshold, and it applies specifically to overseas sellers supplying UK consumers. The GOV.UK guidance on VAT for overseas sellers covers this in detail and is worth reading before you launch.

How Does UK De Minimis Work?

One more thing you should be aware of: that £135 threshold isn’t permanent. The UK government confirmed in the Autumn Budget 2025 that the £135 customs duty relief for low-value imports will be abolished by March 2029. The VAT-at-point-of-sale treatment for sub-£135 goods may also change as part of that reform.

The rules are still being finalized, but the UK is heading the same way as most other major markets: every parcel, regardless of value, may be subject to customs duty.

Customs and VAT rules change. Always confirm your specific setup with HMRC, your customs broker, or a qualified tax adviser before shipping.

What Are Incoterms, and Who Becomes the UK Importer of Record?

Incoterms (International Commercial Terms) define who is responsible for each stage of the shipping process. For the purposes of this article, that includes who handles UK customs clearance and who acts as the importer of record.

The importer of record is the entity legally responsible for your customs declaration and the payment of any duties. Getting this wrong means unexpected obligations landing on someone who wasn’t prepared for them.

In the table below, “seller” means your overseas supplier (the manufacturer or exporter sending goods to the UK), and “buyer” means you — the business importing those goods into the UK. This has nothing to do with your relationship with your end customers.

DDP sounds like the easiest option, and it is, for you as the importer. But it places the full burden of UK VAT registration, customs compliance, and duty payment on your overseas supplier.

That’s fine if they’re set up for it, but a lot of suppliers aren’t, so you need to check. Most established importers use FOB and manage UK clearance themselves or through a customs broker.

DAP is a reasonable middle ground: your supplier handles delivery to a UK address, but you take on the customs and duty obligations at that point.

Your Incoterm also determines who arranges the freight forwarder and who owns the relationship with the carrier. Understanding when and why a freight forwarder adds value to this process is worth getting clear on before you agree terms with your supplier.

What Documents Do You Need for UK Customs Clearance?

Documentation is where a lot of clearance delays originate, so you should pay special attention to this part. Here’s what you need, split by what’s always required and what depends on your product category.

Always required:

• Commercial invoice — must include the declared value of goods, country of origin, a description of the goods, HS/commodity codes, and the details of both the exporter and importer
• Packing list — quantities, weights, and dimensions for each line item
• Bill of lading (sea freight) or airway bill (air freight)
• UK EORI number
• HS/commodity code for each product line

May also be required, depending on your goods:

• Certificate of origin — confirms where your goods were made. Required when importing from countries the UK has a free trade agreement with, in order to claim preferential duty rates. If you’re importing from China, which has no FTA with the UK, the standard UK Global Tariff applies and a certificate of origin won’t affect your duty rate
• Import licence — required for certain controlled product categories including some agricultural goods, chemicals, and dual-use items
• UKCA marking documentation — the UKCA mark is the UK’s post-Brexit conformity marking for Great Britain, broadly equivalent to the CE mark. In practice, CE marking is still accepted indefinitely for most product categories under legislation introduced in 2024, so many importers continue to use it. Check the GOV.UK product regulations by sector guidance for the requirements specific to your product type
• Food safety and DEFRA registration — required for food products, supplements, and products of animal origin
• Cosmetics safety assessment — required under UK Cosmetics Regulation, including a responsible person registration

A note on commodity codes: this can wind up costing you money if you get it wrong. An incorrect HS code can mean you overpay duty on every shipment, or you underpay and then face HMRC penalties later.  

We recommend using the UK Trade Tariff tool to confirm your codes before your first shipment, not after. If you’re unsure, a customs broker can make sure your goods are classified correctly. When you consider the alternative, it’s a smart investment.

If this is starting to feel like a lot, you’re right, it is. The good news is the declaration process, which we’ll cover next, is the last major hurdle. Bear with us.

How Do You Submit a UK Customs Declaration and Pay Duties?

UK customs declarations are now submitted through the Customs Declaration Service (CDS). If you come across any reference to “CHIEF certification” in the context of UK customs, ignore it — the CHIEF system was phased out between 2022 and 2024. CDS is the current platform, and all import declarations run through it. You can find GOV.UK’s CDS guidance here.

In practice, most businesses don’t submit declarations themselves. You’ll typically use a licensed customs broker, freight forwarder, or 4PL who is authorised to submit on your behalf. 

Doing it yourself is possible but requires specific authorisation from HMRC and a reasonable working knowledge of customs procedure codes, which most ecommerce businesses don’t have and don’t need to develop.

How To Calculate UK Duties

Once the declaration is accepted and duties are assessed, here’s how the numbers work:

Customs value = declared goods value + insurance + cost of freight to UK port

Import duty = customs value × duty rate (determined by your HS code; typically 0–12% for most consumer goods)

Import VAT = (customs value + import duty) × 20%

To use a working example: 

• you’re importing £8,000 worth of cosmetics. 
• Freight and insurance add £1,200, giving a customs value of £9,200. 
• Your product’s HS code carries a 6.5% duty rate (illustrative — actual rates vary by exact commodity code, so always verify yours), so import duty is £598. 
• Import VAT is then 20% applied to £9,798 (goods + duty), coming to £1,960. 
• Total charges at the border: roughly £2,558, on top of product cost and shipping. 

Run this calculation before you set your UK retail prices. A lot of brands don’t, and then end up with margins that are far below what they were planning.

If you plan to import frequently, it’s worth looking into a duty deferment account, which allows you to pay duties monthly rather than on each individual shipment. Your broker can advise on whether this makes sense for your volume. Understanding the full cost picture of UK fulfilment, including what 3PL providers typically charge on top of customs costs, is useful context here too.

Which Products Need Special Licences or Labels?

Several product categories face requirements that go beyond the standard customs documentation, so you should also check whether your own products are affected. Goods that fail to meet product-specific requirements can be held at the border, returned at your expense, or destroyed. 

The following categories are the ones you need to be most aware of:

• Food and supplements: registration with the Department for Environment, Food and Rural Affairs (DEFRA), food safety documentation, and correct UK labelling standards (post-Brexit UK requirements differ from EU rules in several areas)
• Cosmetics: UK Cosmetics Regulation compliance, responsible person registration, and a product safety assessment
• Electronics: UKCA marking, which replaced CE marking for goods sold in Great Britain after Brexit
• Controlled goods: certain products — including some chemicals, agricultural items, and dual-use goods — require an import licence from the relevant government department before they can be cleared

Check product-specific requirements at gov.uk import requirements early. Your freight forwarder or customs broker should also flag category-specific requirements as part of their onboarding process — if they don’t, that’s useful information about whether you have the right partner.

Do You Need a Customs Broker or a 4PL?

The honest answer is that it depends on how complex your situation is, and how much of this you want to own yourself.

A customs broker files your declaration, ensures your goods are correctly classified, liaises with HMRC on your behalf, and handles the paperwork that gets your shipment released. As mentioned earlier, this is worth the investment, as it can save you a lot of headaches and potential extra costs.

A fourth-party logistics provider (4PL) is a supply chain orchestrator, also referred to as a “control tower.” These companies typically work with a network of vetted customs brokers and freight forwarders, so they can handle this part for you. What sets them apart is that they can also manage everything else, like warehousing, fulfillment, freight, compliance, and last-mile deliveries. Some third-party logistics (3PL) companies also offer these end-to-end services, but 4PLs usually operate on a global scale, meaning they can take care of every market you’re selling into. 

Case Study: Lashify — UK Market Entry, Done Right

The brand: Lashify is a US-based direct-to-consumer (DTC) beauty brand behind the patented Gossamer lash system. They ran their own in-house fulfilment operation in the US, including fulfilling orders into the UK, but as demand grew, that started getting more and more difficult.

The problem: Serving UK customers from a US warehouse meant cross-Atlantic lead times that were several days longer than what UK consumers expected. In addition, international shipping rates and import duties were eating inot their margins. 

While the team knew US logistics requirements, the UK was much more challenging. All the things we’ve covered above, including VAT obligations, EORI registration, Customs Procedure Codes, and how beauty products are classified, were creating a lot of problems. 

What changed with Wayfindr:

• Wayfindr researched the UK regulatory requirements specific to Lashify’s product categories and built the correct customs and VAT framework from the ground up
• UK fulfilment was established using Wayfindr’s existing 4PL network. Lashify now has inventory in the UK, enabling domestic-speed delivery rather than cross-Atlantic shipping on every order
• Rather than managing a customs broker, a UK warehouse, and a VAT adviser as three separate relationships, Lashify gained a single point of contact across all of it
• The broader 4PL model also gave Lashify access to supply chain planning, demand forecasting support, and the infrastructure to expand into additional markets without starting from scratch each time

The outcome: Customer lead times dropped by 4–5 days. Fulfilment costs fell by more than 20%. UK regulatory compliance is now handled predictably — no held shipments, no unexpected duty charges passed to customers. And Lashify’s internal team stayed focused on product and growth rather than the mechanics of cross-border logistics.

Read the full Lashify case study

Final Thoughts

If you’ve made it this far, you’ll now realize just how much is involved in the UK customs process. Yes, it’s a lot to get your head around, but thousands of other businesses do it, so don’t sweat it too much.

If there’s one key takeaway, it’s that professionals in the industry really earn their keep. Whether you choose to work with a customs broker, a 3PL, or a 4PL, it’s definitely worth the investment.

Wayfindr is a tech-enabled 4PL working with businesses just like yours all around the world. If you want to learn how we can help, our team is always ready for a chat.