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Doing business in France: having a customs agent at the border to trade with the EU like Brexit never happened

Posted May 05, 2026
Expert

EU trade after Brexit: why did customs become the sticking point?

Ask UK businesses why they hesitate to sell into Europe and you rarely hear “no demand”.  Due to Brexit, customs formalities now sit between a confirmed order and a delivered pallet:

  • export and import declarations
  • document accuracy
  • commodity codes
  • Incoterms
  • depending on the goods, additional controls that can slow everything down

When paperwork is incomplete or inconsistent, the cost shows up quickly through penalties.

Brexit logistics

Why having a customs agent matters to do business in France and the EU?

A customs agent (or customs intermediary) handles customs processes on your behalf -often alongside freight forwarders or express operators, so goods can clear faster and more predictably.

HMRC’s guidance (the UK’s tax, payment and customs authority) is explicit on the mechanics: whoever you appoint cannot act for you without written instructions, and your agreement must confirm whether they act directly or indirectly. And even if you outsource the work, you still remain responsible for due diligence on your customs declarations.

That may sound administrative, but according to Jamie O’Reilly; Managing Director UK/ Ireland at BBL Group: “What most companies say to us is that the EU is just too hard to trade with. (…) But when you have the right partnership at the right borders, we can make trade a lot easier.

The idea is simple: place customs professionals where the pressure is highest – at the entry and exit points – and you reduce the risk of disruption.

The benefit becomes even clearer when you consider how variable clearance can be. UK customs clearance can take from minutes to weeks, depending on volumes and how well documentation is organised*. In other words, smooth trade is often less about luck and more about preparation, coordination and who is managing the border process.

Source: *AIT Worldwide Logistics

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How to avoid having trailers stuck at the ports through with a bord-first approach and a customs agent?

Jamie O’Reilly points to one “trade lane” that repeatedly comes up for UK–EU flows: Calais into Northern France, the shortest crossing and, therefore, often the lowest logistics cost route.

“Having customs professionals on the border,” he explained, “we can engage with the other departments – veterinary controls, officers, the health office. We can ensure that trade is simplified and the trailers don’t get stuck at the ports.”

This is the practical heart of his argument: when a customs agent sits at the border, they can act as the coordinator between your shipment, the paperwork, and the authorities involved, reducing delays that can derail the whole supply chain.

UKBC Lille’s role: connecting UK exporters to the right border partners

The promise of the UK Business Centre Lille is not theory. It’s access: putting the right experts in touch with British companies so they can move from “we’re stuck” to “here’s the route”.

In this case, that route runs through UKBC Lille’s network of specialist partners – such as BBL Group – who can support customs, border clearance, and logistics planning for UK-EU trade.

The approach also fits a broader UKBC Lille narrative: Hauts-de-France as a practical gateway to Europe, with Calais and its surrounding logistics ecosystem offering proximity, speed, and cross-Channel know-how. For businesses trying to rebuild EU trade flows post-Brexit, that geography matters – because every extra day in transit, every missed delivery slot, every blocked trailer hits cost and customer trust.

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UKBC Lille team

The takeaway for UK exporters when it comes to having a customs agent

  • Jamie O’Reilly (BBL Group) says UK companies can trade with the EU “like Brexit never happened” if they put the right customs support in place at the border.
  • A professional customs agent helps simplify UK–EU trade by managing the practical essentials: customs declarations and supporting documents, correct classification / paperwork standards, coordination with border authorities when controls apply (including checks that can delay trailers)
  • A border-based customs setup can reduce disruption, because customs professionals can act quickly when issues arise, helping prevent shipments getting stuck at ports.
  • Calais in Hauts-de-France remains a strategic trade lane for UK exporters, as one of the shortest crossings between the UK and continental Europe, often supporting lower logistics costs and faster transit.
  • The UKBC Lille connects UK businesses with trusted customs and logistics partners like BBL Group, so companies can move from uncertainty to a clear, workable cross-border process.

🔎  Get our guide on how to do business in France: a guide for British investors

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