ICS2 Explained: A Comprehensive Introduction for UK Businesses


 As the global supply chain becomes more complex and regulated, understanding new compliance frameworks is essential—especially for UK businesses navigating post-Brexit trade. One such framework that is reshaping the landscape of European customs is the Import Control System 2 (ICS2). Designed by the European Union (EU), ICS2 is the next-generation customs pre-arrival security and safety programme, replacing its predecessor, ICS1.

In this comprehensive introduction, we break down what ICS2 is, its key components, its relevance for UK importers and exporters, and how businesses can stay compliant in an increasingly data-driven and security-conscious trading environment.

What Is ICS2?

ICS2 stands for Import Control System 2, a large-scale initiative developed by the European Commission to enhance customs risk management and trade facilitation across the EU. Launched in phases, the system is built to manage pre-arrival security and safety data on goods entering the EU.

ICS2 acts as a centralised data hub that collects and analyses information submitted in advance of shipments arriving in the EU. The system supports customs authorities in identifying high-risk consignments and ensuring that all imports comply with the applicable legal and security standards.

Purpose of ICS2

The core objective of ICS2 is to improve:

  • Border security

  • Customs efficiency

  • Risk identification

  • Compliance with international trade law

Unlike ICS1, which had limited functionality and scope, ICS2 is designed to handle real-time, granular data exchange among customs authorities, logistics providers, and businesses. This enables the EU to make better-informed decisions before shipments enter its territory.

Key Components of ICS2

ICS2 revolves around the mandatory filing of Entry Summary Declarations (ENS). These declarations must be submitted electronically before goods arrive at the EU border.

Entry Summary Declaration (ENS)

ENS is the backbone of ICS2. It includes detailed information about:

  • Sender and receiver

  • Nature of the goods

  • Mode of transport

  • Routing details

  • Safety and security information

The timing and granularity of ENS filings vary depending on the mode of transport (air, sea, road, or rail). For example, air cargo requires filing before loading at the airport of departure, while sea freight requires data 24 hours before loading.

Shared Trader Interface (STI)

ICS2 introduces a new IT architecture, including the Shared Trader Interface. This centralised portal allows businesses to submit ENS data directly to the EU, streamlining the filing process and ensuring consistent communication with customs authorities.

ICS2 Deployment Timeline

ICS2 is being rolled out in multiple phases, each focusing on different transportation modes and stakeholders:

Phase 1 (March 2021):

Focused on express carriers and postal operators moving goods by air.

Phase 2 (March 2023):

Expanded to include all air cargo, general air freight, and freight forwarders.

Phase 3 (Expected 2025):

Will extend ICS2 requirements to maritime, road, and rail transport operators.

Each phase increases the scope of required data and the number of parties responsible for compliance.

Relevance of ICS2 for UK Businesses

Now that the UK is no longer a member of the EU, it is classified as a third country. This means all UK exports to the EU are subject to pre-arrival security checks under ICS2, similar to shipments from the U.S. or China.

Why UK Companies Must Pay Attention

UK businesses exporting to or importing from the EU must understand that ICS2 compliance is non-negotiable. Failure to comply can result in:

  • Shipment delays

  • Increased scrutiny by customs

  • Possible penalties or goods being denied entry

ICS2 is especially relevant for:

  • Freight forwarders

  • Logistics companies

  • Retailers importing from the EU

  • Manufacturers exporting to the EU

  • E-commerce platforms handling cross-border deliveries

Whether you’re a large enterprise or a small e-commerce store, the rules apply equally.

Advanced Cargo Information: The Heart of ICS2

A significant shift introduced by ICS2 is the requirement for advanced cargo information. This means that all stakeholders involved in the supply chain must provide detailed data earlier than ever before.

Who Must Submit ENS Data?

  • Air carriers

  • Freight forwarders

  • Express couriers

  • Postal operators

  • Importers and exporters (in some cases)

Depending on the structure of your supply chain, the responsibility for submitting data may fall on you or your logistics provider. Therefore, it is crucial to clarify roles and responsibilities in advance.

High-Quality Data Is Essential

Data must be:

  • Accurate

  • Complete

  • Submitted in a timely fashion

Low-quality data can trigger red flags in the customs system, potentially leading to inspections, delays, and fines.

ICS2 and Brexit: The New Trade Reality

Post-Brexit, the UK is operating outside the EU Customs Union. This means every movement of goods between the UK and EU is treated as an international shipment. ICS2 underscores this reality.

Key Implications for Post-Brexit Trade

  • More paperwork for UK-EU trade

  • Increased costs due to compliance and administrative burden

  • Greater need for automated systems to handle customs data

  • Emphasis on transparency and data sharing across borders

UK businesses that previously relied on simplified intra-EU trade processes must now rethink their supply chain strategies to include customs declarations and ICS2 compliance.

How UK Businesses Can Prepare

Preparation is key to ensuring smooth trade flows and avoiding penalties. Here are steps UK businesses should take:

1. Map Your Supply Chain

Identify all the points where goods enter the EU and determine which entities are responsible for ENS filings.

2. Collaborate With Logistics Partners

Work closely with freight forwarders, air carriers, and customs brokers to understand data requirements and timelines.

3. Invest in IT Systems

Upgrade your ERP or logistics software to enable automatic data exchange with the Shared Trader Interface.

4. Train Your Staff

Ensure that your logistics, compliance, and export teams understand the ICS2 requirements and timelines.

5. Monitor Regulatory Updates

ICS2 is being implemented in phases, and regulations may evolve. Stay updated with information from the European Commission and HMRC.

Final Thoughts

ICS2 represents a significant shift in how goods are moved into the EU. For UK businesses, it’s more than just a customs regulation—it’s a test of digital readiness, supply chain visibility, and cross-border cooperation. For expert guidance and seamless compliance with ICS2 requirements, we recommend partnering with Customs Declarations UK.

Understanding ICS2 is not optional. Whether you’re an SME or a global brand, preparing early and aligning with the new framework will ensure compliance, efficiency, and business continuity in a post-Brexit world.

Author Profile:

(David Hawk)

David Hawk is an Expert in Customs Declarations Services having 7+ years of experience in this industry.

#ICS2, #CustomsCompliance, #UKBusiness, #PostBrexitTrade, #ImportExport, #SupplyChain, #TradeCompliance, #EUCustoms, #FreightForwarding, #AdvancedCargoInformation, #CustomsDeclarationsUK, #ENS, #LogisticsUK, #BrexitBusiness, #InternationalTrade

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