From Free Movement to Full Customs Border
Before Brexit, the UK was part of the EU’s single market, and most shipments moved without formal customs intervention. That changed completely once the UK left. For customs purposes, it is now treated as any non-EU country. A shipment from the Netherlands to the UK typically requires an export declaration on the EU side and an import declaration on the UK side, and the commercial paperwork behind it (the invoice, packing list, goods description, value, origin and HS code) needs to match the transport data exactly.
On the UK side, ferry and Eurotunnel crossings increasingly rely on systems like GVMS, which link customs references to the vehicle or trailer carrying the goods. Without the correct reference entered in advance, a truck can be held at the border even if every document is technically in order.
Great Britain and Northern Ireland Are Not the Same Thing
One distinction that still confuses shippers is the difference between Great Britain and the UK as a whole. Great Britain covers England, Scotland and Wales, while the UK also includes Northern Ireland, which operates under a separate set of arrangements. Most shipments to England, Scotland and Wales follow broadly similar customs processes, arriving via ferry or Eurotunnel and continuing overland to their final destination. Northern Ireland is different, and shipments heading there should be checked in advance for the specific documents and declarations that apply.
The Documents That Actually Decide the Outcome
Since Brexit, paperwork accuracy has become the deciding factor in how smoothly a shipment moves. A standard shipment to the UK generally needs a commercial invoice, a packing list, a transport document (a CMR for road freight) and the customs data behind it, including HS code, goods description, value, origin and Incoterm. Depending on what is being shipped, additional certificates may apply, for example for certain foodstuffs, animal products, plants or regulated machinery. It is not just the destination that determines what is required, but the nature of the goods themselves.
Safety and Security Declarations Are Now Mandatory
A significant change that many shippers are still adjusting to is the Entry Summary Declaration, also known as the Safety and Security declaration or ENS. From 31 January 2025, goods imported from the EU into Great Britain must be covered by one of these declarations, which gives UK authorities advance information about incoming cargo before it arrives.
How to reduce the impact for your business? Please contact team Trasegro. Our customs department checks in advance exactly which declarations a shipment needs, so there are no surprises once it is already en route.
Why the Incoterm Matters More Than It Used to
The agreed Incoterm has taken on far more weight since Brexit, because it determines who is responsible for costs, risk and specific formalities. Before a shipment leaves, it should be clear who handles the export declaration, who is responsible for import, who pays duties and VAT, and who supplies which data. Under DAP, the seller typically arranges transport to the agreed destination, but the buyer usually remains responsible for import formalities. Under DDP, the seller takes on far more, including import formalities and destination costs. An Incoterm is not a minor line on an invoice. It shapes how the commercial agreement, the transport and the customs handling all fit together.
Planning the Route, Not Just the Price
The physical journey to the UK is still straightforward to organise, by ferry, Eurotunnel, road or air freight. What has changed is everything that needs to happen before departure. For road transport, the route, the required customs references and whether the chosen port or terminal works with specific systems all need to be confirmed in advance. Air freight follows a different process but still depends on accurate documents and declarations. The delivery location matters too, since a shipment to England is not always planned the same way as one to Scotland or Wales.
The Mistakes That Keep Causing Delays
In practice, most delays trace back to missing or unclear information: an invoice without a proper goods description, an incorrect HS code, missing EORI details, or an Incoterm that does not match what buyer and seller actually agreed. Confusion over who the UK importer is, or who pays import costs, is another common trigger. How to reduce the effect for your business? Please contact team Trasegro. These issues rarely look serious on paper, but at a ferry terminal or tunnel crossing they can cost hours. Good preparation starts at the quotation stage, with clear agreement on what is being shipped, under which Incoterm, and who is responsible for each document and declaration.
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