Key Takeaways
- The UK-EU Trade and Cooperation Agreement (TCA) provides zero tariffs and zero quotas on goods that meet rules of origin requirements
- Proof of originating status is mandatory to claim preferential duty rates — self-declaration or supplier declarations accepted
- From 2026, full customs declarations and SPS checks are required for EU-to-UK imports under the Border Target Operating Model
- The Pan-Euro-Mediterranean (PEM) Convention revised rules are being implemented, affecting cumulation provisions
- TRE (Trader Reference Entity) becomes the only way to access official customs declaration data from 31 March 2026
- Goods not meeting rules of origin face standard Most Favoured Nation (MFN) duty rates under the UK Global Tariff
What the UK-EU Trade and Cooperation Agreement Means for Importers in 2026
The UK-EU Trade and Cooperation Agreement (TCA) remains the foundation of post-Brexit trade between the United Kingdom and the European Union. For UK importers bringing goods from the EU, the TCA offers a critical advantage: zero tariffs and zero quotas on qualifying goods. However, this preferential treatment is not automatic. You must prove your goods originate in the UK or EU to claim the benefit.
The TCA’s core purpose is straightforward: ensure reduced rates of Customs Duty are only given to goods originating in the UK or EU, not from countries outside this trading area. According to GOV.UK guidance, rules of origin checks are conducted by local customs authorities, and visits by the importing country’s customs to exporters in the other territory are not permitted under the agreement.
For logistics professionals managing EU supply chains in 2026, three developments demand attention. First, the Pan-Euro-Mediterranean (PEM) Convention revised rules are being fully implemented, affecting how cumulation works across multiple countries. Second, the Border Target Operating Model has introduced new SPS (Sanitary and Phytosanitary) check requirements for certain product categories. Third, from 31 March 2026, all existing MSS and CDS report contracts expire — TRE becomes the only way to access official customs declaration data, according to industry reporting from early 2026.
The practical implication: if you import from the EU and cannot demonstrate originating status, your goods face standard Most Favoured Nation (MFN) duty rates under the UK Global Tariff. For many product categories, this means paying between 4% and 12% duty that could have been avoided with proper documentation.
Rules of Origin Explained — How to Prove Your Goods Qualify for Zero Tariffs
Rules of origin determine the economic nationality of goods. Under the TCA, goods qualify as originating if they are wholly obtained in the UK or EU, or if they have undergone sufficient processing in either territory. The rules are product-specific and detailed in the TCA’s Origin Protocol.
Wholly Obtained Goods
Goods are considered wholly obtained if they are entirely produced in one territory. This includes minerals extracted from the ground, vegetables harvested, live animals born and raised, and products made exclusively from these materials. If you import French wine, British coal, or Dutch flowers, these typically qualify as wholly obtained.
Sufficient Processing
Most manufactured goods fall into this category. The TCA uses three main tests to determine sufficient processing:
Change in Tariff Classification: The manufacturing process must change the HS code of the inputs at a specified level (chapter, heading, or sub-heading). For example, if you manufacture furniture in the UK using timber imported from outside the EU, the transformation from timber (Chapter 44) to furniture (Chapter 94) may satisfy the rule.
Value-Based Rules: A maximum percentage of non-originating materials is permitted, or a minimum percentage of ex-works price must originate in the UK or EU. Common thresholds are 40% to 50% non-originating content maximum.
Specific Processing Requirements: Some products have detailed technical requirements. For textiles, this might specify that yarn must be spun in the UK or EU. For chemicals, it might require specific chemical reactions to occur within the territory.
Proof of Originating Status
To claim preferential duty rates, you need proof of origin. The TCA offers flexibility here. You can use:
- Supplier’s Declaration: Your EU supplier provides a declaration stating the goods meet origin rules. This can be on the commercial invoice or a separate document.
- Self-Declaration: For goods where the total value of originating materials exceeds certain thresholds, exporters can self-declare origin on the commercial invoice or delivery note.
- Movement Certificate EUR.1: Still valid but less commonly used since the TCA came into force.
According to the EU’s Access2Markets portal, rules of origin checks are done by local customs authorities. The importing country’s customs cannot visit exporters in the other territory to verify claims — enforcement happens through documentation checks and post-clearance audits.
For detailed guidance on commodity classification and determining the correct HS codes for your products, see our guide to UK commodity codes and tariff classification.
What Changed in 2026: Customs Declarations, SPS Checks, and TRE Transition
The UK’s Border Target Operating Model has phased in new requirements for EU imports throughout 2024 and 2025. By 2026, the system is fully operational with three significant changes affecting importers.
Full Customs Declarations Required
Pre-notification and full customs declarations are now mandatory for all EU-to-UK imports. The transitional simplified procedures that allowed delayed declarations have ended. You must submit a full customs declaration through the Customs Declaration Service (CDS) before goods arrive at the UK border, or use an authorised special procedure.
The CDS replaced CHIEF for imports in 2022, and by 2026 it handles all declaration traffic. If you still rely on legacy systems or third-party intermediaries using outdated interfaces, you risk delays. The declaration must include the correct commodity code, customs value, origin declaration, and any required licences or certificates.
SPS Checks for Animal and Plant Products
Sanitary and Phytosanitary (SPS) checks now apply to medium and high-risk animal products, plants, and plant products from the EU. The risk category determines the level of control:
- Low risk: No SPS documentary checks required
- Medium risk: Documentary checks on a percentage of consignments
- High risk: Documentary checks, identity checks, and physical inspections on arrival
Products subject to SPS controls include meat, dairy, fish, certain fruits and vegetables, seeds, and wood packaging. You must pre-notify the Animal and Plant Health Agency (APHA) or Forestry Commission before shipment arrives. The Common Health Entry Document (CHED) must be completed through the Import of Products, Animals, Food and Feed System (IPAFFS).
Failure to pre-notify correctly results in goods being held at the border pending resolution. Storage charges and potential destruction costs apply if documentation cannot be regularised.
TRE Transition: 31 March 2026 Deadline
From 31 March 2026, all existing MSS (Managed Service Supplier) and CDS report contracts expire. TRE (Trader Reference Entity) becomes the only way to access official customs declaration data, according to industry reporting from January 2026.
TRE provides a single reference point for traders to access their declaration history, duty calculations, and compliance data. If you use a customs broker or freight forwarder, confirm they have migrated to TRE-compatible systems. Direct traders must register and configure their own TRE access through HMRC’s Government Gateway.
The transition affects duty deferment statements, duty calculations, and post-clearance amendments. Without TRE access, you cannot retrieve historical data or submit certain types of supplementary declarations.
For step-by-step guidance on making customs declarations through CDS, see our customs clearance UK guide.
Step-by-Step: Claiming Preferential Duty Rates Under TCA
Claiming zero tariffs under the TCA requires specific actions at each stage of the import process. Follow this sequence to ensure compliance and avoid unnecessary duty payments.
Step 1: Verify Origin Status with Your Supplier
Before placing an order, request confirmation from your EU supplier that the goods meet TCA rules of origin. Ask for:
- A supplier’s declaration stating the goods are of EU preferential origin
- The specific origin rule satisfied (e.g., “wholly obtained” or the relevant processing rule)
- Confirmation that cumulation provisions have been applied correctly if materials from multiple countries are involved
Keep this documentation on file. HMRC can request it during post-clearance audits up to three years after import.
Step 2: Include Origin Declaration on Commercial Documentation
When goods ship, the origin declaration must appear on the commercial invoice, delivery note, or packing list. The declaration text is standardised:
“The exporter of the products covered by this document declares that, except where otherwise clearly indicated, these products are of UK/EU preferential origin.”
Include your EORI number and the supplier’s EORI if available. For self-declarations, the exporter must be registered in the REX system (Registered Exporter System) if the consignment value exceeds €6,000.
Step 3: Enter Correct Origin Code on Customs Declaration
On your CDS declaration, complete the following boxes accurately:
- Box 44 (Documents): Reference the origin declaration document
- Origin Code: Use the correct code indicating preferential origin under the TCA
- Preference Indicator: Mark that preference is claimed under the UK-EU agreement
Incorrect origin codes trigger automated checks and potential delays. If HMRC’s system flags the declaration, you may be asked to provide additional evidence before goods are released.
Step 4: Retain Records for Audit
Keep all origin-related documentation for at least three years. This includes:
- Supplier declarations
- Commercial invoices with origin statements
- Bills of materials showing component origins
- Manufacturing records if you are the producer
- CDS declaration copies
HMRC conducts risk-based post-clearance audits. If you cannot produce documentation when requested, you become liable for the duty difference plus potential penalties.
Step 5: Handle Non-Compliant Goods Appropriately
If goods do not meet rules of origin, you must pay the standard MFN duty rate. Do not attempt to claim preference without valid proof — this constitutes customs fraud and carries significant penalties.
For goods with mixed origin content, consider whether further processing in the UK or EU could bring them within the rules. Some manufacturing operations transform non-originating materials sufficiently to confer origin status.
Understanding rules of origin is essential for making this determination correctly.
Common Pitfalls and How to Avoid Customs Delays
Importers face several recurring issues when claiming TCA preferences. Addressing these proactively prevents border delays and unexpected costs.
Assuming EU Origin Without Verification
Many importers assume goods from EU suppliers automatically qualify for preferential treatment. This is incorrect. A product manufactured in Germany using Chinese components may not meet the TCA’s rules of origin if insufficient processing occurred in the EU.
Always request explicit origin confirmation from suppliers. Do not rely on “Made in EU” labels alone — these indicate compliance with marking rules, not necessarily TCA origin requirements.
Incomplete or Missing Origin Declarations
Customs declarations lacking proper origin documentation are processed at the standard duty rate. If you claim preference without supporting evidence, HMRC holds the goods pending clarification.
Ensure every commercial invoice includes the correct origin declaration text. Train your procurement team to request this documentation as part of the standard ordering process.
Incorrect Commodity Classification
The rules of origin are product-specific. Classifying your goods under the wrong HS code leads to applying incorrect origin rules. A misclassified product might appear to meet the origin requirement when it actually does not, or vice versa.
Invest time in correct classification upfront. Use HMRC’s Trade Tariff tool to verify commodity codes before shipping. If uncertain, consider applying for a Binding Tariff Information (BTI) ruling from HMRC.
Ignoring Cumulation Rules
The PEM Convention allows cumulation — treating materials from certain countries as if they originated in the UK or EU for origin purposes. However, the revised PEM rules being implemented in 2026 change some cumulation provisions.
If your supply chain involves materials from PEM Convention countries (such as Switzerland, Norway, Turkey, or North African states), verify that cumulation is still applicable under the revised rules. Incorrect cumulation claims invalidate the origin status.
Missing the TRE Transition Deadline
From 31 March 2026, TRE is the only route to access customs declaration data. Importers still relying on legacy MSS contracts or third-party reporting arrangements lose access to their data if migration is not completed.
Confirm your TRE registration status now. If you use a broker, verify their migration timeline. Direct traders should complete registration and testing well before the deadline.
For guidance on working with intermediaries, see our comparison of customs brokers vs freight forwarders.
Frequently Asked Questions
What happens if I cannot prove origin under the TCA? You pay the standard Most Favoured Nation (MFN) duty rate under the UK Global Tariff. This varies by product but typically ranges from 4% to 12% for manufactured goods. You cannot claim preferential rates retrospectively without valid proof of origin.
Can I claim preference after goods have been imported? Yes, within three years of import. If you obtain valid proof of origin after import, you can submit a post-clearance refund claim through CDS. You will need the original declaration reference and the origin documentation. Interest may be payable on the refunded duty.
Do I need a supplier’s declaration for every shipment? Not necessarily. A single supplier’s declaration can cover multiple shipments over up to two years if the goods and production process remain unchanged. The declaration must specify the validity period. For ongoing supply relationships, one comprehensive declaration is more efficient than per-shipment documentation.
What is the difference between TCA origin and non-preferential origin? TCA (preferential) origin determines eligibility for zero tariffs under the trade agreement. Non-preferential origin is used for other purposes: trade statistics, anti-dumping duties, and country-of-origin marking. The two can differ — goods may have UK non-preferential origin but not qualify for TCA preference.
How do SPS checks affect my import timeline? For medium and high-risk products, SPS checks add time to the clearance process. Documentary checks may take 24-48 hours. Physical inspections can add several days depending on port capacity and inspection availability. Factor this into your supply chain planning and consider pre-lodging declarations to minimise dwell time.
Is the January 2027 postponement of new rules still in effect? The UK and EU agreed in 2024 to postpone certain new requirements until January 2027. However, core Border Target Operating Model requirements including full customs declarations and SPS checks for relevant products are already in force in 2026. Verify current requirements with HMRC or your customs broker before shipping, as implementation timelines can shift.