Goods Held at the UK Border — a 15-Minute Checklist for Hauliers and Freight Forwarders

When a shipment is held before a port or after crossing the border, the first few minutes decide whether the situation gets back on track quickly or starts generating costs. In practice, it's not just about "customs clearance" — it's about quickly working out which element is actually blocking the movement.

This checklist is written for hauliers, freight forwarders and trading companies handling UK–Poland traffic. If you need operational support straight away, see also our support for imports from the UK to Poland and get in touch with us as soon as you've gathered the basic data.

The 15-minute checklist: what to check first

1. The message or reason for the hold
   Write down the exact message from the system, the terminal or the driver. Don't rely on a summary from memory.
2. Vehicle data
   Compare the tractor unit and trailer registration with the data used in the declaration or in the GMR.
3. Document references
   Check the MRN, T1, GMR, ENS and any other numbers linked to the movement.
4. Commercial document
   Verify the invoice, the description of the goods, the quantities, the sender and the consignee.
5. Port or inspection location
   Establish whether the movement needs to report for inspection or to a specific handling point.

The most common causes of a hold-up

• an error in the vehicle or trailer data,
• a GMR that hasn't been created correctly,
• a missing or unconfirmed ENS,
• inconsistency between the commercial and customs documents,
• a requirement to report for a check or inspection.

If the problem is with the GMR or GVMS

Check whether the GMR number was created against the correct references and whether it matches the current vehicle data. Even a small discrepancy can stop the movement going any further. If the issue relates to a difference between the GMR and the ENS, also read our approach to urgent cases and get a full set of data ready before you get in touch.

If an inspection notice comes up

From an operational point of view, you need to establish whether the driver has to report to a specific inspection point and which documents have to be shown there. At this stage, what matters is not just that a document exists, but whether it can quickly be matched to the current status of the movement.

What to send to a customs agency so you don't lose time

• a photo or screenshot of the error message,
• the vehicle and trailer registration numbers,
• the MRN, GMR, T1 and ENS information,
• the commercial invoice or packing list,
• a short note on where the vehicle is and what the deadline is.

What not to do

• don't correct data "on the fly" without first working out which element is actually the source of the problem,
• don't send the driver onward just because "it might get through",
• don't assume that the T1 document or the MRN alone resolves the security and port-movement issue.

Frequently asked questions

Should you call the port first, or check the documents first?
Start by getting the exact message and checking the documents and references. Without that, it's easy to escalate the case in the wrong direction.

What information should you prepare before contacting an agency?
The MRN, GMR, T1 or ENS number, the vehicle data, a description of the problem and the basic commercial documents.

Does every hold mean there's a customs error?
No. Sometimes the problem is with the vehicle data, an inspection requirement or an operational inconsistency, rather than with the customs declaration itself.

Summary

The faster you gather the correct data, the faster it can be established whether the problem relates to a document, movement through GVMS, the ENS requirement or an on-site inspection. If your shipment is already held up, contact us straight away and send whatever you have. It's better to start with an incomplete package than to wait until the cost of the hold-up grows even larger.

Official sources

• GOV.UK: Goods Vehicle Movement Service
• GOV.UK: Get a goods movement reference
• GOV.UK: Making an entry summary declaration
• GOV.UK: Check if you need to report for an inspection in Great Britain after arriving from the EU
• GOV.UK: Fulfilling customs obligations - civil penalties

Extra support for urgent cases

If the issue is already live and you need a wider point of reference, also see: Goods stuck at the border — how to sort out the situation.