Dublin Port Customs Clearance

Dublin Port is the busiest port in Ireland — more than 1.7 million RoRo units a year, around 60% of all goods crossing the Irish Sea. If you import from Great Britain by ferry, there's a very good chance your goods come through Dublin.

This guide explains how customs clearance actually works at the port and where most delays come from.

Ferry Routes Into Dublin Port

The main GB routes are:

• Holyhead (Stena Line, Irish Ferries) — 3hr 15min crossing, the highest-volume route
• Liverpool (P&O, Seatruck, CLdN) — overnight crossings, popular with unaccompanied trailers
• Cherbourg / Roscoff (FR) — for direct EU routes that bypass the GB landbridge

Direct EU routes don't need a customs declaration on arrival (intra-EU movement), but all GB routes do.

Before the Ferry — What Must Happen

For every truck/trailer coming from GB, the following must be in place before the vehicle boards in the UK:

1. ENS lodged at the UK port (safety & security, ICS2)
2. AIS import declaration lodged with Irish Revenue
3. PBN reference generated by Revenue's RoRo system, given to the haulier
4. GMR (Goods Movement Reference) generated in UK GVMS, given to the haulier

Without the PBN, the truck cannot board the ferry. UK port operators check it at the gate.

During the Crossing

Revenue performs risk analysis on the declared goods. Each consignment is assigned a routing:

• Green — goods cleared, no action needed
• Orange — documentary check, agent must respond to a Revenue query
• Red — physical inspection at the port on arrival

Routings are usually decided before the ferry docks. For green routings, the haulier drives straight off the ferry, through the port, and onto Dublin Port Tunnel without stopping.

At the Port

For green consignments — the vast majority — there is no stop at customs. The haulier exits the port within minutes of disembarking.

For orange consignments, the agent (us) must respond to Revenue's queries before the goods are released. We typically clear orange routings within 30–60 minutes.

For red consignments, the trailer is parked in a designated inspection area. Revenue officers physically examine the goods. This can take anywhere from 2 hours to a full day depending on workload.

Common Causes of Delay

In our experience, port delays usually trace back to one of these:

1. Missing PBN — truck arrives at GB port without a PBN reference, can't board. Has to wait for the next sailing.
2. Incorrect commodity code — Revenue flags the declaration for review.
3. Origin claim without proof — claiming TCA preference but no statement on origin attached.
4. Mismatched details — declared trailer or container number doesn't match the manifest.
5. Late documentation from exporter — agent receives the invoice an hour before sailing and there's no time to file properly.

The cure for all of these is: send documents early. We can typically file a complete declaration in under 30 minutes if we have everything.

Customs Hours at Dublin Port

Revenue operates 24 hours, 7 days a week at Dublin Port. Declarations can be filed at any time, and routings come back within minutes. There is no overnight or weekend stoppage.

Other Irish Ports

For completeness:

• Rosslare Europort — the main Brexit-era port for direct France routes (Cherbourg, Dunkirk, Roscoff). Customs clearance also runs 24/7.
• Cork — Ringaskiddy for unaccompanied trailers; Tivoli for containers.
• Shannon Foynes — bulk and specialised cargo.

We clear consignments at all of these.

Need a Customs Agent?

We handle Dublin Port clearances every day and have direct relationships with the major hauliers and forwarders. Get a quote — we typically respond within the hour.