Handling the customs and excise complexity that bulk liquid and energy storage operators deal with every day

In bulk operations, a shipment rarely follows a single customs procedure from start to finish. A cargo might arrive under transit, be imported into a customs warehouse where it is held duty-free, then transferred into a tax warehouse where excise suspension applies, and finally exported with an EMCS movement and an export declaration. Each of these steps is a separate customs act with its own submission, its own response from the customs authority, and its own deadline. Coordinating them manually, or across disconnected systems, creates significant risk of error and delay.

Goods moving under excise duty suspension, such as LNG, Gasoil and other oil derivatives, FAME, Ethane and certain additives, must be accompanied by an electronic administrative document submitted through the EMCS system. Once the goods arrive, the consignee has five working days to confirm receipt. During transport, if the destination changes, the document must be updated. If goods are lost or short-delivered, that shortage has to be reported and explained. All of this involves specific message types that must be submitted in the right format, in the right sequence, within the regulatory deadline. Missing a deadline, or submitting the wrong message type, can result in the duty suspension being lost and excise duty becoming immediately chargeable.

Bulk exporters often use simplified export procedures: a simplified declaration is submitted before departure, and a supplementary declaration follows. When the shipment also involves an EMCS movement, the excise system issues an administrative reference code (ARC) that must appear on the export declaration. In practice this means the export system and the excise system need to exchange data automatically. If that linkage is manual, it creates a bottleneck on every shipment. Beyond the ARC linkage, keeping declarations current throughout a shipment is a challenge in itself. Small changes, such as a quantity update or an EMCS confirmation, should not require a formal amendment. And customs need to be notified when a movement is starting so they can monitor it. In practice this means the customs system needs to handle incremental updates intelligently.

Bulk liquid goods can be blended before they even reach the terminal. Once ashore, blending continues at the facility itself. The volumes received are not always identical to the volumes that leave, due to blending, temperature differences, or natural loss during transport. Then there are pipelines that drip continuously, meaning inventory is in constant motion and stock figures need to be updated in near real time to remain accurate. On top of that, a single tank can hold goods with different customs statuses at the same time: Union goods and non-Union goods co-mingled in one physical vessel. Each of those goods has different obligations, different procedures, and a different point at which duty becomes chargeable. Tracking all of this accurately, at the level of individual product categories and customs regimes, requires more than a standard inventory system. EU regulations set specific partial loss thresholds per product type, and tolerances are variable per country and flow. Exceeding these thresholds triggers a formal shortage report.

Goods held in a tax warehouse are under excise duty suspension, meaning duty is not yet chargeable. The moment goods leave that suspension, duty becomes chargeable. You need to know at any point in time which goods are in suspension, which have been released, and what the resulting duty position is. You also have to file mandatory reports with the national authority, including excise stock balances and petroleum balance reports on a monthly, quarterly, and annual basis.

Many bulk shipments arrive or depart under transit, either as a standalone transit movement or combined with an import or export declaration or an EMCS movement. Transit requires its own message exchange with the NCTS system and its own financial guarantee. Where multiple representatives are authorised on a single guarantee, each needs to be registered with the customs authority. Managing this alongside the rest of the customs chain adds complexity that standard customs tools rarely handle in a combined flow.

Bulk terminals operate continuously. When a national customs system is unavailable, you still need to be able to dispatch goods, particularly for excise movements where a delay in starting a movement can have commercial consequences. Procedures exist in EU law to allow movements to start on paper during an outage, but these need to be managed carefully and reconciled once the system is restored. Additionally, when declarations get stuck following an outage, they need to be resolved without losing the stock position or the compliance record.

You manage your shipments in WMS, terminal management systems or ERP platforms. Customs declarations cannot be managed in isolation from these systems. The customs software needs to receive shipment data from your system, apply the correct customs logic, submit declarations, and send status updates back, all without requiring manual re-entry of data. Where a shipment is updated in your system, those changes need to flow through to the relevant declarations automatically.