From Customs Union to Integrated Trade Facilitation

TRADE FACILITATION NETWORK (TFN) TFN Research & Policy Series | November 2026 CONNECTING REGIONS. ENABLING TRADE. info@tradefacilitation.network | www.tradefacilitation.network

Publication Note and Disclaimer

This research edition has been prepared by the Trade Facilitation Network (TFN) as an independent assessment of the European Union’s internal and external trade facilitation architecture. It examines the relationship between customs integration, national implementation, digital systems, regulatory compliance, border coordination, transport infrastructure and international connectivity.

The research is intended for policymakers, customs and border authorities, regional institutions, ports, transport operators, logistics companies, trade associations, researchers and other stakeholders engaged in international trade.

The paper distinguishes between established arrangements, measures already operational, legislation adopted but subject to phased implementation, and policy proposals. The evidence and developments have been reviewed up to 9 November 2026. Where official statistics are preliminary, this is stated. Port throughput figures are used to illustrate the scale and diversity of European gateways; they are not treated as measures of customs efficiency.

This publication is an independent policy assessment. It is not an official position of the European Union, any Member State, international organisation or commercial operator. It does not constitute legal advice, a customs ruling, an engineering study or an operational assessment of any individual port or border crossing.

Executive Summary

The European Union represents one of the most advanced examples of regional economic and customs integration. Its Customs Union, common customs legislation, common external tariff, Single Market and extensive network of preferential trade arrangements have created a framework in which goods can circulate across Member States without routine internal customs duties.

Yet the existence of a Customs Union does not automatically guarantee uniform trade facilitation. Customs procedures are implemented by national administrations, border controls involve several authorities, transport networks operate across different geographical and institutional environments, and businesses must comply with an increasingly extensive body of regulatory requirements.

The EU therefore faces a central institutional and operational challenge: how to translate common legislation and shared digital infrastructure into consistently efficient, predictable and coordinated trade flows across all Member States and external borders.

This study examines the EU’s trade facilitation challenges through ten interconnected dimensions: institutional architecture; the achievements and limitations of the Customs Union; national customs implementation; digital customs and interoperability; border agency coordination; regulatory complexity; multimodal transport and European freight corridors; external trade and transit; the 2026 Customs Union Reform; and the development of a more integrated approach to trade-flow facilitation.

The EU has already achieved substantial progress. Its common customs framework is supported by interconnected electronic systems. By 31 December 2025, the European Commission reported that 96% of national systems and 100% of central systems under the Union Customs Code work programme had been deployed. The Commission described Member States as operating in a substantially integrated digital customs environment. The remaining challenge is therefore not to suggest that the existing system is broadly disconnected, but to consolidate it, address residual implementation gaps and extend interoperability across customs, other regulatory authorities and the wider logistics ecosystem. [1]

The scale of the task is significant. Preliminary Commission figures for 2025 identify more than 2,200 customs offices and approximately 84,123 customs staff. Customs processed 630.9 million import items, 580 million export items and 17.2 million transit movements. The Commission also reports 5.5 billion goods sold online using the H7 reduced declaration procedure. These figures illustrate the growing demands placed on customs administrations, particularly by e-commerce. The number of transit movements should not be confused with the separate estimate of approximately 300 million transit items. [2]

The adoption of Regulation (EU) 2026/2108 marks a major new phase. It establishes a revised Union Customs Code, creates the European Union Customs Authority and provides for an EU Customs Data Hub. However, this is a phased transition. The new regulation generally applies from 21 September 2027. The Customs Data Hub will become available for e-commerce functionality in stages, with broader voluntary use from March 2031 and mandatory use for relevant traders from March 2034. [3]

The regulatory dimension is also changing. The Carbon Border Adjustment Mechanism entered its definitive phase on 1 January 2026, while the EU Deforestation Regulation is scheduled to apply to large and medium-sized operators from 30 December 2026 and to micro and small enterprises from 30 June 2027, subject to transitional provisions. These measures reflect legitimate environmental and sustainability objectives, but they also increase the importance of accessible guidance, reliable data, traceability and coordinated enforcement.

The external dimension is equally important. The EU’s customs and transport networks connect with neighbouring economies through common transit arrangements, preferential trade agreements and multimodal corridors. These arrangements demonstrate that customs integration and transport market access are related but distinct policy questions. A customs transit procedure does not, by itself, confer road transport rights or eliminate licensing and permit requirements.

Six operational gateway cases—Rotterdam, Antwerp-Bruges, Hamburg, Gdańsk, Piraeus and Constanța—illustrate the diversity of the European logistics environment. They are selected as purposive examples, not as a statistically representative sample of the 27 Member States or a ranking of national customs administrations.

The central conclusion is that the EU’s next stage of trade facilitation must go beyond customs modernisation. It requires stronger coordination between institutions, common risk management, interoperable data, regulatory coherence, efficient multimodal interchange and reliable international corridors.

TFN proposes an integrated Trade-Flow Facilitation perspective to assess these interfaces. The framework considers cargo, vehicles and carriers, people, mode interchange and corridor availability as connected elements of a complete trade movement.

The central research proposition is that the performance of a Customs Union should ultimately be measured not only by the uniformity of its laws or the sophistication of its digital systems, but by the efficiency, predictability, reliability and security of the complete movement of goods from origin to destination.

1. Introduction: The Changing Meaning of Trade Facilitation

Trade facilitation has traditionally focused on simplifying customs procedures, reducing documentation, improving transparency and accelerating the release of goods at borders. These objectives remain essential. However, international supply chains have become more complex, involving multiple regulatory authorities, transport modes, logistics operators, digital platforms and jurisdictions.

A shipment may satisfy customs requirements and still experience delays because another border agency has not completed its inspection, a port terminal has not released the cargo, a transport operator lacks the required permit, or information has not been exchanged between the relevant systems.

This means that customs clearance and trade facilitation are not identical. Customs is a central component of the wider trade process, but the performance of international trade depends on the coordination of the complete supply chain.

The European Union provides a particularly important case for examining this relationship. It has achieved a high degree of legal and economic integration, yet it continues to face challenges in ensuring consistent implementation, coordinated controls and efficient movement across different transport and regulatory environments.

The EU experience raises a fundamental question:

If 27 Member States share one Customs Union, common customs legislation and a common external tariff, why does the EU still need a major customs reform to achieve more uniform, efficient and coordinated customs administration?

The answer lies in the distinction between common rules and their implementation. The Customs Union provides the legal foundation, but national authorities remain responsible for much of the practical administration and enforcement. Other regulatory agencies, transport systems and commercial operators also influence the movement of goods.

This research therefore examines trade facilitation as an integrated institutional, regulatory, digital and physical system.

2. Evolution and Institutional Architecture of the EU Customs Union

The European Customs Union emerged from the broader European integration project. Its establishment created a common customs territory in which customs duties and equivalent charges between participating Member States were removed and a common external tariff was applied to imports from outside the Union.

The Customs Union became operational in 1968. It subsequently developed alongside the European Single Market, which expanded the integration of goods, services, capital and people.

Today, the EU Customs Union is a central component of the Single Market. Goods in free circulation can move between Member States without routine internal customs duties. The common external tariff and common customs legislation provide a shared framework for trade with non-EU countries.

The institutional architecture involves several levels of responsibility.

The European Commission develops customs policy, proposes legislation, monitors implementation and coordinates the development of common systems. The Council and European Parliament participate in the legislative process. National customs administrations implement customs legislation, assess declarations, collect duties, conduct controls and enforce applicable rules.

The 27 national customs administrations are therefore not 27 separate customs regimes. They operate within one Customs Union and under common EU customs legislation. Nevertheless, national administrations retain operational responsibilities, and the organisation of customs services, staffing, enforcement practices and cooperation with other national authorities can differ.

This distinction is essential. The EU has achieved legal customs integration, but the effectiveness of that integration depends on how consistently common rules are administered across national jurisdictions.

The Customs Union also interacts with other EU institutions and agencies, including those responsible for food safety, product compliance, transport, environmental regulation, public health, financial interests and security. Trade facilitation is consequently not the responsibility of customs alone.

3. The Customs Union: Achievements and Structural Limitations

The EU Customs Union has delivered major economic and institutional benefits.

The removal of internal customs duties has supported the free circulation of goods. The common external tariff has created a unified customs framework for imports from third countries. Common legislation has reduced the need for businesses to navigate entirely different customs laws in each Member State.

The Union Customs Code provides the principal legal framework for customs procedures. It has supported the transition towards electronic declarations, risk-based controls, authorised economic operator programmes and common customs processes.

The scale of the Customs Union demonstrates the importance of these arrangements. Preliminary Commission figures for 2025 report more than 2,200 customs offices, approximately 84,123 customs staff, 630.9 million import items declared and 580 million export items declared. Customs duties collected amounted to approximately €30.7 billion. These figures are published as preliminary and should be treated accordingly. [2]

The Customs Union nevertheless faces structural limitations.

First, customs administration remains nationally organised. Common legislation does not eliminate differences in administrative capacity, operational priorities, staffing or enforcement practices.

Second, customs controls must address different categories of risk. These include revenue protection, security, safety, intellectual property rights, product compliance, health, environmental standards and the prevention of illicit trade. Different risks require different expertise and coordination with different authorities.

Third, the growing volume of e-commerce has changed the nature of customs work. Large numbers of low-value consignments create substantial data-processing, risk-assessment and enforcement requirements. Traditional customs models were not designed for the scale and speed of contemporary direct-to-consumer trade.

Fourth, the EU’s external borders vary considerably. Major maritime ports, airports, land borders, inland terminals and specialised industrial entry points face different operational conditions.

The challenge is therefore not to replace the Customs Union but to improve the consistency and effectiveness of its implementation.

4. National Customs Administration and the Challenge of Uniform Enforcement

A common customs framework can only function effectively when its implementation is sufficiently consistent.

The European Court of Auditors addressed this issue in Special Report 04/2021, which examined the harmonisation of financial-risk criteria and the selection of import declarations for customs control. The audit found weaknesses in the framework and differences in implementation between Member States. It warned that non-compliant importers could seek to use entry points where the likelihood of control was lower. [4]

The scope of this audit must be understood correctly. It concerned customs financial-risk criteria and the selection of import declarations for control. It was not an assessment of every customs, security, safety, sanitary or environmental control across the EU. Nor should its findings be presented as proof that all the identified weaknesses remain unchanged in 2026.

Nevertheless, the report illustrates an important institutional issue: a common customs territory requires a sufficiently consistent approach to risk assessment and enforcement.

If similar transactions face materially different control probabilities depending on the Member State of entry, businesses may encounter unequal treatment and enforcement gaps can be exploited.

The EU’s response must therefore combine common risk criteria, appropriate data sharing, coordinated enforcement priorities and effective cooperation between national administrations.

Uniformity does not require every customs office to operate identically. Local risks and operational conditions differ. The objective should be a consistent application of common legal standards, supported by comparable risk-management principles and accountable implementation.

5. Digital Customs, Single Window and Interoperability

Digitalisation is one of the EU’s most significant achievements in customs modernisation.

The Union Customs Code work programme has supported the development of electronic systems for customs declarations, transit, export, import control, authorised economic operators and other procedures.

By 31 December 2025, the Commission reported that 96% of national systems and 100% of central systems under the programme had been deployed. It described Member States as operating in a fully integrated UCC digital environment, with remaining gaps limited to specific national projects and implementation issues. [1]

This is a substantial achievement and should be recognised as such.

However, digital customs integration is not the same as complete digital integration of the trade process.

A customs declaration may be submitted electronically while other information remains in separate systems operated by food safety authorities, veterinary services, port community systems, transport regulators, immigration authorities or private logistics operators.

The challenge is to ensure that relevant information can be exchanged securely and reused appropriately, without requiring businesses to repeatedly provide the same data to different authorities.

The EU’s Single Window Environment for Customs is intended to improve cooperation between customs and partner competent authorities. Its effectiveness will depend on the ability to connect national systems, regulatory databases and the relevant EU-level services.

The New Computerised Transit System (NCTS) is another important component. It supports electronic customs transit through interconnected national applications that exchange messages over a common network. It should not be described as a single central customs database.

NCTS Phase 6 is an important development because it strengthens the relationship between transit declarations and entry summary declarations under the Import Control System 2 (ICS2).

Participating countries may choose between two approaches. Under the opt-in model, complete entry summary declaration information can be included with the transit declaration and linked to ICS2. Under the opt-out model, the entry summary declaration is lodged separately through ICS2. The choice is made by the relevant customs authorities, and the available options can therefore differ between participating countries. [5]

This illustrates a wider point: interoperability requires not only compatible software but also compatible procedures, data standards, responsibilities and operational decisions.

The next stage of EU digital customs should focus on data quality, secure information exchange, risk-management coordination and the practical integration of customs information with other regulatory and logistics systems.

6. Border Agency Coordination and Integrated Risk Management

Customs is only one of the authorities involved in the movement of goods across international borders.

Depending on the commodity and route, a shipment may require inspection or approval by food safety, veterinary, plant health, environmental, product safety, transport, security or other competent authorities.

If these authorities operate separate inspection schedules, data systems and risk priorities, the total border process may become fragmented even when customs procedures are efficient.

Effective border management requires a coordinated approach to risk assessment and inspection.

This involves advance information, clear allocation of responsibilities, compatible operating hours, coordinated inspection facilities, joint risk analysis and appropriate sharing of control results.

The principle of risk-based controls should be applied across agencies wherever legally possible. Low-risk consignments should not face unnecessary repeated intervention, while high-risk consignments should receive targeted attention.

The EU’s Single Window initiatives and customs reform provide opportunities to strengthen this coordination. However, technology alone cannot resolve institutional fragmentation. Authorities need agreed operating procedures, governance arrangements and accountability for the performance of the complete border process.

The relevant measure should not simply be the time taken by customs to process a declaration. It should also include the time required for all necessary controls, terminal handling and the physical release of the goods.

The World Customs Organization’s Time Release Study methodology provides a recognised basis for measuring the time taken from the arrival of goods to their physical release. The methodology is relevant to WTO Trade Facilitation Agreement Article 7.6 and provides a more complete perspective than customs declaration processing times alone. [6]

7. Regulatory Complexity: CBAM, EUDR and the Expanding Compliance Environment

The EU’s trade facilitation environment is increasingly shaped by regulatory requirements extending beyond traditional customs administration.

Environmental sustainability, product safety, traceability, due diligence and supply-chain accountability are becoming important components of market access.

These objectives may be legitimate and necessary. However, their implementation has direct implications for importers, exporters, customs authorities and logistics operators.

7.1 Carbon Border Adjustment Mechanism

The Carbon Border Adjustment Mechanism (CBAM) entered its definitive phase on 1 January 2026. It initially covers specified goods in sectors including cement, iron and steel, aluminium, fertilisers, electricity and hydrogen, subject to the detailed product scope and applicable exemptions.

The revised framework introduced a single annual mass-based threshold of 50 tonnes per importer, aggregated across covered goods and CN codes. The threshold does not apply to electricity and hydrogen. Where an importer exceeds the threshold during a calendar year, the relevant obligations extend to the covered imports for that entire year, not merely the quantity above 50 tonnes. [7]

CBAM introduces additional requirements relating to emissions data, reporting, authorised declarant status and certificates. Importers must obtain reliable information from producers and supply chains outside the EU.

For customs and border authorities, this increases the importance of data validation, product classification and coordination between customs and environmental administrations.

For exporters in third countries, the ability to provide accurate and verifiable emissions information is becoming a condition of effective access to the EU market.

7.2 EU Deforestation Regulation

The EU Deforestation Regulation (EUDR) introduces due diligence and traceability requirements for specified commodities and derived products associated with deforestation and forest degradation.

The application timetable provides for large and medium-sized operators and traders to comply from 30 December 2026, while micro and small enterprises are generally covered from 30 June 2027. Certain micro and small operators already covered by the EU Timber Regulation are subject to the earlier date. Products newly added through the relevant delegated act are scheduled to enter scope from 30 December 2027. [8]

The regulation requires supply-chain information, due diligence statements and, where applicable, geolocation data.

These requirements can affect producers, exporters, traders, customs brokers and logistics operators well before a consignment reaches an EU border.

The operational challenge is to ensure that regulatory compliance systems are understandable, proportionate and interoperable with customs processes. Businesses should not have to navigate unnecessarily duplicated data requirements, and authorities need reliable mechanisms to verify information.

7.3 Low-value e-commerce and customs reform

The rapid expansion of e-commerce has created a significant customs and product-compliance challenge.

The EU introduced a temporary €3 customs duty from 1 July 2026 on relevant low-value consignments below €150. The duty is calculated per category of goods within a parcel, rather than simply once per parcel or once per individual product unit. For example, multiple products of the same tariff category are treated as one category for this calculation, while products in different categories can attract separate charges.

A separate EU-wide handling fee of €2 per item applies from 1 November 2026. This is a handling fee, not the €3 customs duty.

The permanent removal of the €150 customs duty relief threshold is linked to the operational availability of the EU Customs Data Hub. The temporary €3 arrangement and the separate handling fee should not be confused with that longer-term reform. [9]

These measures reflect the need to address undervaluation, non-compliant products, revenue risks and the competitive position of EU businesses. They also demonstrate the scale of the challenge created by millions of small consignments entering the Union.

8. Multimodal Transport, Ports and European Freight Corridors

Trade facilitation cannot be assessed only at customs offices. The physical movement of goods depends on ports, railways, roads, inland waterways, terminals, logistics centres and intermodal connections.

The EU has developed the Trans-European Transport Network (TEN-T) to improve the connectivity and performance of its transport infrastructure.

The revised TEN-T framework is organised around nine European Transport Corridors and two horizontal priorities: the European Rail Traffic Management System and the European Maritime Space. The corridors provide a structure for coordinated infrastructure planning and connect major economic centres, ports and cross-border transport routes. [10]

TEN-T is a transport infrastructure and connectivity framework. It is not a customs transit system and does not itself grant customs or road transport permissions.

The EU’s freight modal split illustrates the importance of multimodal connectivity. In 2024, maritime transport accounted for 67.0% of EU freight transport performance measured in tonne-kilometres. Road accounted for 25.7%, rail for 5.4%, inland waterways for 1.7% and air for 0.2%. These percentages measure transport performance in tonne-kilometres, not the number of consignments or the number of vehicles. [11]

The figures demonstrate the importance of maritime and road transport, while also highlighting the role of rail and inland waterways in particular national and regional markets.

The following gateway cases illustrate different operational contexts. Their throughput figures are not directly comparable measures of customs performance. Port throughput reflects cargo handled, and container figures expressed in TEU may include transshipment activity.

9. Six Operational Gateway Case Studies: Ports, Borders and Multimodal Connectivity

The six cases below are selected to illustrate different geographical and logistics environments. They are not a representative statistical sample of all Member States, nor do they establish a ranking of national customs administrations.

9.1 Netherlands: Port of Rotterdam

The Port of Rotterdam is Europe’s largest seaport and a major gateway for international trade, energy, chemicals, containers and industrial supply chains.

In 2025, Rotterdam handled 428.4 million tonnes of cargo and 14.2 million TEU. These figures were reported by the Port of Rotterdam Authority. [12]

Rotterdam’s importance lies not only in its maritime scale but also in its connections with inland waterways, railways, roads, pipelines and industrial clusters.

The port illustrates the importance of integrating customs processes with terminal operations, inland transport and logistics services. Efficient customs clearance cannot by itself guarantee efficient cargo movement if terminals, warehouses, inland terminals and transport operators are not synchronised.

Rotterdam therefore provides an example of why trade facilitation must be assessed across the complete port-to-destination journey.

9.2 Belgium: Port of Antwerp-Bruges

Antwerp-Bruges is a major European gateway for containers, chemicals, energy, industrial cargo and general merchandise.

The port handled 13,532,436 TEU in 2025. The port authority reports total annual cargo throughput of approximately 267 million tonnes. [13]

Its operational environment includes seaport terminals, inland shipping, rail and road connections, industrial facilities and extensive logistics services.

The case illustrates the importance of port community coordination and the interaction between customs, terminal operators, shipping lines, freight forwarders and inland transport providers.

Antwerp-Bruges also demonstrates the importance of connecting customs and regulatory compliance with industrial supply chains. A port’s performance depends on the reliability of the wider logistics ecosystem, not only the speed of customs processing.

9.3 Germany: Port of Hamburg

Hamburg is a major maritime gateway for Germany and Central Europe. Its location on the Elbe River supports maritime access and inland distribution through rail, road and inland waterways.

The Port of Hamburg handled 114.6 million tonnes of cargo and 8.3 million TEU in 2025. The port authority reported growth in container throughput, including significant traffic with China, India and Southeast Asia. [14]

Hamburg’s role illustrates the importance of inland connectivity and the relationship between seaports and industrial markets.

Its case also reinforces the distinction between port throughput and border performance. Cargo volumes indicate the scale of port activity, but they do not establish how quickly customs or other authorities release individual consignments.

The relevant trade facilitation question is how effectively the port, customs, terminal operators and inland transport systems coordinate the movement of cargo beyond the quay.

9.4 Poland: Port of Gdańsk and the Eastern Land Border Dimension

Poland occupies an important geographical position between Western Europe, the Baltic region and the EU’s eastern neighbourhood.

The Port of Gdańsk handled 80.4 million tonnes of cargo in 2025. Container terminals handled nearly 2.8 million TEU, with the Baltic Hub Container Terminal alone reporting 2,766,475 TEU. These are distinct measures: the terminal’s TEU figure should not be presented as the total for every terminal in the port. [15]

Gdańsk is a Baltic maritime gateway with growing importance for Central and Eastern European markets. Poland’s eastern land borders with Ukraine and Belarus represent a separate operational dimension involving land-border controls, transit, security and geopolitical conditions.

These two dimensions should not be conflated. Gdańsk is not an eastern land-border crossing. Rather, the Polish case illustrates how a Member State may need to manage maritime gateway development and complex external land-border operations within the same national customs framework.

The broader lesson is that the EU’s external border environment is geographically diverse. Common customs rules must be applied across maritime, airport and land-border settings with different operational requirements.

9.5 Greece: Port of Piraeus and Maritime Connectivity

Greece occupies a strategically important position in the Eastern Mediterranean and provides maritime connections between Europe, Asia and the wider Mediterranean region.

Piraeus is a major container gateway and an important point of connection between maritime shipping and European inland distribution.

Lloyd’s List reported 2025 container throughput of 4,641,295 TEU for Piraeus. This figure is an industry-source report and should be distinguished from the Port of Piraeus Authority’s separately reported Pier I statistics. [16]

The Greek case also highlights the importance of distinguishing customs performance from terminal and logistics performance.

A World Customs Organization article published in March 2026 examined the Greek Customs Performance Measurement Mechanism. It discussed the relationship between national customs declaration targets and actual physical release times, identifying the influence of terminal operations, logistics processes and inspections by other authorities. This was a national customs performance-measurement example; it was not a dedicated performance assessment of Piraeus port. Nor should it be described as a full national WCO Time Release Study. [17]

The case demonstrates why end-to-end measurement is necessary. A customs declaration may be processed efficiently, while the goods remain subject to other controls or operational processes before physical release.

9.6 Romania: Port of Constanța and Inland Waterway Connectivity

Romania occupies a significant position in the EU’s Black Sea and Danube transport geography.

Constanța is a major maritime gateway, while the Danube provides an inland-waterway connection with Central and Eastern European markets.

According to Romania’s National Institute of Statistics, the country’s maritime ports handled 54.569 million tonnes of cargo in 2025. Constanța accounted for approximately 95.8% of this national maritime-port total. This figure should therefore not be described as the throughput of Constanța alone. Separately, the Port of Constanța handled approximately 13.0 million tonnes of inland-waterway cargo in 2025, according to the Central Commission for the Navigation of the Rhine’s Danube port statistics.

These are distinct statistical measures and should not be added together or treated as interchangeable.

The Romanian case illustrates the relationship between maritime gateways and inland-waterway transport. It also highlights the need for coordination between port authorities, customs, inland terminals, river transport operators and neighbouring countries.

The wider Danube system demonstrates that trade facilitation is not confined to maritime ports or road border crossings. Inland waterways can form an important part of international supply chains, provided that infrastructure, navigation conditions, customs procedures and multimodal connections are coordinated.9.7 What the Six Cases Demonstrate

These six gateways illustrate different elements of the EU trade facilitation environment:

• Rotterdam demonstrates large-scale maritime and inland logistics integration.
• Antwerp-Bruges illustrates the relationship between port operations, industrial supply chains and inland transport.
• Hamburg highlights maritime access and rail-based inland distribution.
• Gdańsk illustrates Baltic connectivity alongside the separate challenges of the EU’s eastern land borders.
• Piraeus demonstrates the importance of linking customs performance with terminal operations and other border controls.
• Constanța illustrates maritime and inland-waterway connectivity in the Black Sea and Danube region.

The available figures do not support a quantitative ranking of customs administrations or border efficiency. Such comparisons would require consistent, comparable data, including national Time Release Studies, border waiting-time measurements and clearly defined operational indicators.

The cases instead demonstrate that the EU’s trade facilitation performance depends on the integration of institutions, ports, transport modes, border processes and commercial operators.

10. External Trade, Customs Transit and Connectivity with Asia

The EU’s trade facilitation architecture extends beyond its internal market.

Its external trade relationships are supported by preferential trade agreements, customs cooperation arrangements, mutual administrative assistance and transit conventions.

The Common Transit Convention is particularly important because it provides a common customs transit procedure across the EU and participating partner countries. The network includes the EU Member States, Iceland, Norway, Liechtenstein, Switzerland, Türkiye, North Macedonia, Serbia, the United Kingdom, Ukraine, Georgia, Moldova and Montenegro. Georgia joined in February 2025, while Moldova and Montenegro joined in November 2025. [19]

Common transit allows goods to move under customs supervision between participating territories with duties and taxes suspended until the goods reach their destination and the procedure is properly discharged.

This is an important facilitation instrument for international trade. However, customs transit must be distinguished from transport market access.

A customs transit procedure does not automatically grant a foreign road carrier the right to operate commercially in another country. Transport permits, operator licensing, vehicle standards, insurance, driver requirements and bilateral or multilateral road transport arrangements remain separate matters.

The distinction is particularly important for trade corridors connecting Europe with Türkiye, the South Caucasus, Central Asia and wider Asian markets.

The EU’s transport and customs systems can support international connectivity, but effective corridor operations also require agreements and cooperation beyond customs administration.

10.1 Türkiye: A Strategic Customs and Transit Partner

Türkiye is an important partner in the EU’s external trade and transport environment.

The final phase of the EU–Türkiye Customs Union entered into force on 1 July 1996. Its scope is limited primarily to industrial products, including processed agricultural products, while agricultural products and coal and steel products are subject to separate preferential arrangements. It is not equivalent to full participation in the EU Single Market. [20]

Türkiye also participates in the Common Transit Convention and is an important bridge between European markets and the wider Eurasian transport geography.

In July 2026, the EU–Türkiye Customs Cooperation Committee adopted a decision on mutual recognition of the security and safety components of their respective Authorised Economic Operator programmes. The decision was published in October 2026, but its entry into force remains conditional upon completion and notification of the required administrative and technical procedures. The European Commission’s Türkiye 2026 Report of 4 November also states that the arrangement will enter into force once the necessary administrative and technical procedures have been completed. It should therefore be described as adopted and published, but not yet demonstrated to be operational as of 9 November 2026. [21]

The arrangement concerns the security and safety component of the AEO programmes. It should not be presented as blanket mutual recognition of every customs simplification or benefit.

Türkiye’s case demonstrates both the potential and the limitations of external customs cooperation. Legal arrangements can create a foundation for facilitation, but operational benefits depend on implementation, structured data exchange and compatible systems.

11. The 2026 EU Customs Union Reform: A New Institutional and Digital Architecture

The adoption of Regulation (EU) 2026/2108 represents a major reform of the EU customs framework.

The regulation was adopted on 16 September 2026, published in the Official Journal on 19 September 2026 and entered into force on 20 September 2026. Most of its provisions apply from 21 September 2027, when the existing Union Customs Code framework is repealed, subject to the specific transitional provisions in the new regulation. [3]

The reform responds to several pressures: increasing e-commerce volumes, the need for stronger risk management, the complexity of regulatory compliance, the demands of digital trade and the need for more consistent implementation across Member States.

Three elements are particularly important.

11.1 European Union Customs Authority

The regulation establishes the European Union Customs Authority (EUCA), a decentralised EU agency based in Lille, France.

The Authority is intended to coordinate and support national customs administrations, strengthen EU-level risk management, identify common priority control areas and support operational cooperation.

It does not replace national customs administrations. National authorities retain responsibility for national risk analysis, control decisions and the execution of customs controls.

The Authority is expected to begin operations in 2027 and is planned to have approximately 250 staff members. The reform therefore introduces a stronger Union-level coordination structure while preserving the operational role of national customs authorities. [22]

11.2 EU Customs Data Hub

The EU Customs Data Hub is intended to provide a common platform for the submission, processing and analysis of customs data.

Its purpose is to improve the availability of information, support risk management and reduce repetitive administrative requirements for businesses.

However, the Hub is not being introduced as an immediate replacement for every national customs system. The transition is phased.

The relevant e-commerce functionality is scheduled to become operational by 1 June 2028, with e-commerce use from 1 July 2028. From 1 March 2031, importers, exporters and holders of transit procedures may use the Hub voluntarily for the relevant procedures while existing declaration options remain available. From 1 March 2034, use becomes mandatory for the relevant traders and procedures. Full Hub functionality is scheduled to be operational by 1 February 2034. [3]

These dates are important because they distinguish the legal adoption of the reform from its practical implementation.

11.3 Risk Management and National Responsibilities

The reform seeks to strengthen common risk management through improved data analysis and Union-level coordination.

The EU Customs Authority will support common risk assessments and recommendations, while national customs administrations will continue to conduct national risk analysis and make control decisions.

The intended result is a more consistent approach to risk management across the Customs Union without removing the operational responsibilities of national administrations.

The reform is ambitious, but its success will depend on implementation capacity, data quality, cooperation between authorities, technical readiness and the ability of businesses to adapt to new procedures.

The critical question is not simply whether the EU adopts a new legal framework or develops a common data platform. It is whether the reform improves the actual movement of goods, reduces unnecessary administrative costs and produces more consistent control outcomes.

12. The Central Challenge: From Customs Integration to Trade-Flow Integration

The EU’s experience demonstrates that customs integration is necessary but not sufficient for complete trade facilitation.

A common customs law does not automatically ensure that all border authorities operate in coordination. Digital customs systems do not automatically integrate every regulatory database. A major seaport does not automatically provide efficient inland distribution. A transit convention does not automatically grant transport market access.

These are different components of the same international trade movement.

The central policy challenge is therefore to connect institutional, regulatory, digital and physical systems so that the complete movement of goods becomes more predictable and efficient.

This requires an approach that measures not only the performance of individual agencies but also the interfaces between them.

13. TFN’s Proposed Integrated Trade-Flow Facilitation Framework

The Trade Facilitation Network proposes an integrated Trade-Flow Facilitation Framework to assess the complete movement of goods across institutions, borders, transport modes and international corridors.

The framework is built around five interconnected dimensions.

Cargo

The cargo dimension covers the identity, origin, destination, commodity classification, ownership, documentation, customs status, regulatory requirements and physical handling of goods.

Vehicles and Carriers

This dimension includes trucks, trailers, railway wagons, vessels and other transport equipment, together with operator licensing, vehicle standards, insurance, tracking, liability and transit permissions.

People

International trade depends on drivers, crew, customs agents, freight forwarders, traders, border personnel and other professionals. Their qualifications, documentation, movement permissions and operational responsibilities are integral to the trade process.

Mode Interchange

Goods frequently move between maritime, road, rail and inland-waterway systems. Ports, terminals, inland container depots, logistics centres and transfer facilities must operate as connected components of the same supply chain.

Corridor Availability

A corridor must be legally accessible, physically operational, secure and commercially viable. Its performance depends on border status, infrastructure capacity, transit rights, operating conditions, reliability and the availability of transport services.

Together, these five dimensions determine whether a shipment can move through the international trade system in a coordinated, predictable and commercially viable manner.

The framework complements the WTO Trade Facilitation Agreement and existing customs modernisation programmes. It extends the analytical perspective beyond individual procedures to the performance of the complete trade flow.

For the EU, this approach could provide a useful policy lens for evaluating the practical results of customs reform, Single Window development, border agency cooperation, multimodal connectivity and external corridor arrangements.

14. Policy Recommendations

The following recommendations are intended to support the next stage of EU trade facilitation development.

14.1 Strengthen Consistent Implementation of Common Customs Rules

The EU should continue strengthening common implementation standards, risk-management coordination and operational cooperation between national customs administrations.

Performance differences should be identified through comparable evidence and addressed through targeted institutional support, technical assistance and shared operational guidance.

14.2 Accelerate Interoperability Between Customs and Other Border Authorities

The development of the EU Customs Data Hub and Single Window environment should be connected with the information requirements of other competent authorities.

The objective should be to reduce repeated data submission, improve advance risk assessment and coordinate inspections wherever legally and operationally possible.

14.3 Measure End-to-End Border Performance

Customs declaration processing times should be complemented by measurements of total time from arrival to physical release.

The EU and Member States should promote consistent use of the WCO Time Release Study methodology, supported by additional indicators covering terminal handling, other-agency inspections, border waiting times and inland movement.

14.4 Strengthen Risk-Based and Coordinated Controls

Common risk criteria should be supported by appropriate data sharing, joint risk analysis and clear responsibilities between customs and other competent authorities.

The objective should be to reduce unnecessary intervention for compliant, low-risk trade while strengthening targeted controls against fraud, unsafe products and illicit activity.

14.5 Support Businesses in Adapting to Regulatory Requirements

CBAM, EUDR and other regulatory requirements should be accompanied by clear guidance, predictable implementation procedures and accessible information for importers, exporters and smaller businesses.

Digital compliance systems should be designed to avoid unnecessary duplication and to support reliable information exchange throughout supply chains.

14.6 Ensure a Practical and Phased Customs Reform Transition

The implementation of Regulation (EU) 2026/2108 should be monitored against clear milestones.

The EU Customs Authority, the Customs Data Hub and the revised risk-management architecture will require sustained investment, technical readiness, staff development and cooperation with national administrations.

Businesses should receive sufficient notice and practical guidance as new requirements become applicable.

14.7 Improve Multimodal Connectivity and Port-to-Hinterland Integration

TEN-T implementation should continue to strengthen connections between seaports, railways, roads, inland waterways and logistics centres.

Port performance should be assessed in relation to inland distribution, terminal efficiency and access to commercial transport services, rather than only through cargo throughput.

14.8 Strengthen External Transit and Corridor Cooperation

The EU should continue developing practical customs and transit cooperation with neighbouring countries and strategic trade partners.

Customs transit arrangements should be supported by compatible digital procedures, effective border cooperation and clear distinctions between customs transit and transport market access.

14.9 Improve Public Availability of Comparable Performance Data

The EU should strengthen the availability of comparable information on customs processing, physical release, border waiting times, control outcomes and multimodal transport performance.

Such information would support more credible policy evaluation and help distinguish between legal compliance, administrative performance and end-to-end trade facilitation.

14.10 Adopt a Whole-of-Trade-Flow Perspective

Trade facilitation strategies should assess the interaction of cargo, vehicles and carriers, people, mode interchange and corridor availability.

This would complement customs reform by connecting institutional and regulatory objectives with the practical requirements of international transport and logistics.

15. Conclusion: The Next Stage of European Trade Facilitation

The European Union has built one of the world’s most advanced customs and regional economic integration systems.

Its Customs Union, common external tariff, common customs legislation, Single Market and digital customs infrastructure have created a strong foundation for international trade. The EU’s 2026 Customs Reform represents an important attempt to strengthen this architecture through a new Customs Authority, a common Customs Data Hub and more coordinated risk management.

The reform should not be interpreted as evidence that the existing Customs Union has failed. Rather, it reflects the changing demands of international trade, the growth of e-commerce, the increasing complexity of regulatory compliance and the need to improve consistency across a large and diverse customs territory.

The EU’s challenge is now to ensure that common laws, digital systems and institutional arrangements translate into better operational outcomes.

The six gateway cases demonstrate that trade facilitation is shaped by different combinations of ports, border authorities, transport modes, logistics operators and international corridors. No single customs procedure can resolve all the interfaces that determine the movement of goods.

The future of trade facilitation will therefore depend on the integration of institutions, regulations, digital information, transport operators, infrastructure and international connectivity.

This is the broader lesson of the EU experience.

A Customs Union provides the legal foundation for integrated trade. An integrated trade-flow system provides the operational means to make that integration work.

TFN’s proposed Trade-Flow Facilitation Framework offers a way to examine this wider relationship and to assess trade performance from origin, through borders and transport interfaces, to final destination.

Methodology and Evidence Limitations

This research is based on a review of EU legislation, European Commission publications, Council materials, European Court of Auditors reports, Eurostat statistics, World Customs Organization material, port-authority publications and other relevant institutional sources.

The study is primarily an institutional and policy assessment. It does not constitute a quantitative ranking of Member States or customs administrations.

The six gateway cases are purposive operational examples selected to illustrate different geographical and logistics environments. They are not statistically representative of all EU Member States.

Port throughput and container-handling figures are used to describe the scale of port activity. They should not be interpreted as measures of customs efficiency, border waiting time or trade facilitation performance. Figures from individual port authorities and industry sources may follow different reporting methods.

The Commission’s 2025 Customs Union statistics are preliminary. The reported 17.2 million transit movements and approximately 300 million transit items are different measures and should not be combined.

The European Court of Auditors’ Special Report 04/2021 concerned financial-risk criteria and the selection of import declarations for customs control. Its findings are used as a historical institutional reference, not as evidence that every identified issue remains unchanged in 2026.

The Greek Customs Performance Measurement Mechanism discussed by the WCO is a national performance-measurement example. It is not a dedicated assessment of Piraeus port or a full national WCO Time Release Study.

The 2026 Customs Reform has been adopted and entered into force, but its main provisions and digital systems are subject to phased application. The research distinguishes legal adoption from operational implementation.

The EU–Türkiye AEO mutual recognition decision has been adopted and published, but its entry into force remains conditional upon completion of administrative and technical procedures. It is not treated in this paper as an already operational arrangement.

The analysis reflects the evidence available up to 9 November 2026. Future implementation, operational performance and regulatory developments may require subsequent review.

Principal Research Sources

1. European Commission, Union Customs Code Work Programme, digital deployment status as at 31 December 2025.
2. European Commission, EU Customs Union: Facts and Figures, 2025 preliminary statistics.
3. European Union, Regulation (EU) 2026/2108 establishing the Union Customs Code and the European Union Customs Authority, Official Journal, 19 September 2026; particularly the transitional provisions and Articles 285–287.
4. European Court of Auditors, Special Report 04/2021, Customs Controls: Insufficient Harmonisation Hampers EU Financial Interests.
5. European Commission, Deployment of NCTS Phase 6 – Next Step in the Modernization of Customs and Transit Procedures, 26 October 2026.
6. World Customs Organization, Time Release Study Guide, Version 4, 2025; WTO Trade Facilitation Agreement, Article 7.6.
7. Regulation (EU) 2025/2083 amending Regulation (EU) 2023/956 as regards the Carbon Border Adjustment Mechanism.
8. European Commission, EU Deforestation Regulation: Application Dates and Implementation.
9. Council of the European Union, EU Action on the Influx of Small Parcels; European Commission guidance on the temporary €3 customs duty for low-value imports.
10. European Commission, TEN-T Governance; Regulation (EU) 2024/1679 on Union guidelines for the development of the trans-European transport network.
11. Eurostat, 25% of Goods Transported by Road in the EU, 26 March 2026; freight modal split for 2024, dataset tran_hv_ms_frmod.
12. Port of Rotterdam Authority, Throughput in the Port of Rotterdam Shows a Slight Decline, 26 February 2026.
13. Port of Antwerp-Bruges, 2025 port statistics and container throughput figures.
14. Port of Hamburg, Throughput Figures for 2025 at a Glance, 19 February 2026.
15. Port of Gdańsk, 2025 cargo-handling results; Baltic Hub Container Terminal, 2025 throughput statistics.
16. Lloyd’s List, Top 100 Ports: Piraeus, 2025 throughput, published 15 August 2026.
17. World Customs Organization, Greek Customs Performance Measurement Mechanism, 1 March 2026.
18. Statistics Poland and Romanian maritime-port statistical releases for 2025; Constanța and inland-waterway statistics.
19. European Commission, Customs Transit; Common Transit Convention participating-country information.
20. European Commission, Türkiye: Customs Unions and Preferential Arrangements.
21. European Commission, EU–Türkiye Customs Cooperation Committee decision on AEO mutual recognition, 16 July 2026; Türkiye 2026 Report, 4 November 2026.
22. Council of the European Union, Modernising the EU Customs Union; Regulation (EU) 2026/2108 establishing the European Union Customs Authority.