From domestic to international
Before the United Kingdom left the European Union, sending a parcel from, say, a UK seller to a customer in France or Germany felt, in practical terms, like sending it within one large market. There were no customs declarations for most consumer parcels and no duties to collect at the door. After the transition period ended at the end of 2020, those parcels became exports and imports, with the paperwork and checks that implies.
This was not a single change but a collection of them. The details have been adjusted since 2021, and they differ by product and by destination, so any business affected should check current official guidance rather than rely on a general summary like this one.
Customs paperwork
The most direct effect is that parcels crossing between Great Britain and EU countries generally need customs information. That includes a description of the contents, their value and where they were made, usually carried on a commercial invoice and a customs declaration. Missing or vague details are a common cause of customs delays, and the way customs clearance works is worth understanding before you start shipping across the border.
Carriers mostly handled the electronic side, but they rely on the seller to supply accurate data. Sellers who had never needed to classify products had to learn about harmonized codes, and many turned to customs brokers or to carrier-provided tools to manage the workload.
Duties, origin rules and tariffs
The trade agreement between the UK and EU allows many goods to move without tariffs, provided they meet rules about where they originate. Goods that do not qualify can attract import duties. For a seller, that means keeping track of where products and key components are made, not only where they ship from. The rules can be technical, and a mistake can lead to unexpected charges for the customer or the seller.
VAT and low-value parcels
Changes to value-added tax affected small consumer orders in particular. In general, the UK stopped treating low-value imports from abroad as exempt from VAT, and the EU ended a similar exemption for small consignments into its member states in 2021. Both sides introduced systems for collecting VAT at the point of sale or on import, with thresholds and schemes that have details worth checking.
The practical result for many consumers was that a parcel could arrive with a fee to pay before delivery, or the checkout price had to include tax. Surprise charges lead to refused parcels and complaints, which is why many sellers chose to take payment of duties and taxes upfront using delivered duty paid terms. Others offered delivered at place terms, leaving the buyer responsible. The right choice depends on your margins and customer base, and the trade-offs are explained in more detail elsewhere on this site.
Transit times and reliability
Customs checks add steps, and steps add time. Parcels that crossed the Channel in a day or two before could take longer, especially during the early period when systems and staff were adjusting. Delays could also affect road freight at ports, which carry parcels as part of general freight. Over time, processes improved, but the extra step remains a source of variation, and some routes and products are affected more than others.
For planning, it makes sense to build in more margin for UK-EU deliveries than for domestic ones and to show customers realistic delivery estimates.
Northern Ireland and other special cases
Northern Ireland has had its own arrangements for goods moving between it and Great Britain and between it and the EU. These rules have changed through agreements and updates and are complicated enough that businesses shipping to or from Northern Ireland should consult current official sources. Other special cases include excise goods, food and animal products, which may need extra documents or may be restricted. Sellers of products in these categories should check restricted and prohibited items before assuming a parcel can cross the border.
How businesses adapted
Responses varied. Some UK sellers set up stock in the EU so that customers could receive goods as domestic shipments, accepting the cost of holding inventory abroad. Others used a fulfilment partner located in the destination country. Some focused on selling domestically, and some EU sellers reduced or ended their UK sales when the extra work outweighed the profit.
Practical steps that tended to help:
- Collect complete product data once, including descriptions, values and origin, and reuse it.
- Choose a carrier with clear customs support for the lanes you use.
- Decide in advance who pays duties and taxes, and make that clear at checkout.
- Keep an eye on official updates, since thresholds and procedures change.
A continuing adjustment
The effects of Brexit were largest at the start, when systems were new and many businesses were unprepared. Many of those difficulties have eased, but the underlying fact remains: UK-EU parcels cross a customs border. Treating that as a normal part of shipping, with allowances for time, cost and paperwork, is more sustainable than hoping for a return to the old arrangement.