Brexit created a compliance layer that has not gone away
It has been several years since the UK left the EU, and the assumption in some quarters was that businesses would adapt and the friction would settle. In practice, the compliance burden for Irish companies trading with Great Britain has remained high and, in some areas, has increased as both the UK and Ireland have continued to update their customs systems.
The introduction of the Customs Declaration Service in the UK and the Automated Import System in Ireland has changed the way declarations must be filed on both sides of the border. Understanding what is required at each stage, and having the right systems in place to meet those requirements without delays, is now a baseline operational capability rather than a specialist concern.
The dual-system problem
Irish businesses importing goods from Great Britain must submit electronic import declarations through Ireland’s Automated Import System. This applies to all goods from GB, excluding Northern Ireland, which operates under separate arrangements. The AIS processes the declaration, manages duty accounting, and issues the clearance notification that allows goods to move.
On the export side, goods moving from Ireland to Great Britain require export declarations through Ireland’s Automated Export System, as well as import declarations on the UK side filed through the Customs Declaration Service. For freight companies managing shipments in both directions, this means maintaining compliance with two distinct systems simultaneously, each with its own data requirements, message types, and submission timelines.
The businesses that handle this well are those where the data flows automatically between their freight management system and the relevant customs platforms. The businesses that struggle are those managing declarations in isolation from their transport operations, whether through a standalone customs tool, a manual process, or by outsourcing the whole function to a broker without full visibility over what is being filed and when.
What delays actually cost
A single delayed consignment at an Irish port might seem like a minor inconvenience. Scaled across a week’s worth of shipments, the costs accumulate quickly. Direct costs include port storage charges, additional haulage costs to retrieve held goods, and the time spent by operations staff resolving the issue. Indirect costs are harder to quantify but often more significant: missed delivery windows, customer service failures, and the reputational risk that comes from repeated unreliability.
Errors in declarations are a common source of delay. An incorrect commodity code, a missing document reference, or a mismatch between the declaration and the physical goods will trigger a customs examination. Examinations add time and cost. Repeated examinations attract scrutiny. For businesses that rely on just-in-time supply chains or that have delivery commitments with penalties, the financial exposure is real.
Revenue audits are also a consideration. Irish Revenue has the authority to audit export and import records, and businesses that cannot demonstrate accurate, complete, and properly timed declarations face the risk of penalties. Good software creates an audit trail automatically. Manual processes depend on individuals filing things correctly and keeping records consistently, which introduces human error into a compliance-critical function.
What good looks like
For Irish businesses moving goods to and from Great Britain in any volume, the standard to aim for is a single system that handles transport planning and customs compliance together. Declarations should be generated from the same data used to plan the shipment. Commodity codes, consignee details, and document references should be drawn from a central record rather than re-entered for each declaration. Submissions should be sent directly to AIS or AES without manual intervention.
BH Associates’ IFMS system includes a customs clearance module built for this operating model. It handles both AIS import declarations and AES export declarations, integrates with transport and fleet management, and has been designed specifically for the Irish freight market. For businesses that are currently managing customs through a separate tool or through a broker, moving to an integrated system removes the risk of data mismatches and significantly reduces the time spent on declaration management.
BH Associates offers a free logistics consultation that includes a review of your current customs setup. Book yours at bhassociates.ie.