Understanding UK Port Procedures (Inventory-Linked vs GVMS)

UK ports operate under two customs control models — inventory-linked and GVMS-enabled. The type of port you use determines how your customs declarations are processed and how vehicles are cleared at the border.

Inventory-Linked Ports

These ports connect customs declarations to the port’s own inventory system. Each shipment must be matched with the physical goods held at the port, which often requires longer handling times. Temporary Storage and Mixed models are common in this setup.

GVMS Ports

Ports using the Goods Vehicle Movement Service allow goods to clear customs using a goods movement reference without being tied to a port inventory system. Ideal for vehicles transporting goods via RoRo terminals, this system enables quicker clearances and less port congestion.

What is the Goods Vehicle Movement Service (GVMS)?

The Goods Vehicle Movement Service (GVMS) is a UK government system introduced to speed up customs processes for vehicles moving goods between the UK and EU. Instead of dealing with separate paperwork for each declaration, GVMS combines them into a single goods movement reference (GMR). This reference confirms that customs formalities have been completed before the vehicle even reaches the border — saving time and reducing risk of delays.

How does GVMS work?

GVMS works by digitally linking all customs declarations to a single goods movement reference (GMR). Once the vehicle is checked in at the port, the ferry operator verifies the GMR and matches it to the vehicle registration number. If all details are valid, the vehicle is cleared for boarding. HMRC is then notified electronically, allowing customs clearance to begin while the goods are in transit to the UK.

Where is GVMS used?

Not all UK border locations support GVMS. It’s available only at ports that have opted into the Goods Vehicle Movement Service to manage pre-lodged declarations. GVMS is especially common at RoRo ports used for EU trade routes. If you’re planning to move goods through one of these ports, using the correct GMR UK process is essential for avoiding delays.

How to Use GVMS for Your Business

To use GVMS, your business must first register with HMRC. You’ll need a GB EORI number and a Government Gateway account. Once registered, you can create a goods movement reference (GMR) for each shipment. This GMR links all customs declarations to the vehicle transporting the goods and must be presented at check-in when departing from a GVMS-enabled port.

How to Obtain a Goods Movement Reference (GMR)

A goods movement reference (GMR) is created using the GVMS online platform. Once you’ve registered with HMRC and have your GB EORI number, you can log in and input key shipment details — including vehicle registration, trailer numbers, and customs declaration references. Each GMR is valid for a single journey and must match the vehicle presented at the port.

Common GVMS Mistakes and How to Avoid Them

The most frequent GVMS issues arise from data mismatches or missing declarations. Watch out for:

• Typos in registration plates

• Incomplete or missing goods movement reference details

• Not updating a GMR when plans change

These mistakes can lead to vehicles being turned away at the port. Partnering with a logistics expert like Mercium reduces that risk.

Why Choose a Customs Partner Like Mercium?

At Mercium, we go beyond just logistics — we help you stay compliant and efficient. Whether you’re moving goods via GVMS ports or need help generating the correct goods movement reference, our experts manage the process for you. From customs declarations to GMR creation, we ensure nothing is missed and your shipments move without delay.

Conclusion

As border procedures continue to evolve, the role of the Goods Vehicle Movement Service becomes even more critical. A properly managed goods movement reference ensures your shipments don’t get stuck at the port. For UK-based hauliers and importers, working with a trusted partner like Mercium means fewer errors and faster crossings. Our team handles the entire GVMS process so you can focus on operations. Ready to move your goods with ease? We’re here to help.