Since Brexit, businesses trading goods between the UK and the European Union have had to navigate a new set of customs rules known as Rules of Origin.
These rules determine where a product is considered to have been made and whether it qualifies for reduced or zero tariffs under the UK-EU Trade and Cooperation Agreement (TCA).
Understanding how Rules of Origin work can help businesses avoid unexpected customs charges and ensure goods move across borders more smoothly.
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What are Rules of Origin?
Rules of Origin are used to determine the economic nationality of a product.
They establish whether goods genuinely originate in the UK or EU and therefore qualify for preferential tariff treatment under the Trade and Cooperation Agreement.
The rules are particularly important where products contain components or raw materials sourced from multiple countries.
Why do Rules of Origin matter?
Meeting the Rules of Origin requirements can allow eligible goods to move between the UK and EU without paying customs tariffs.
However, if products do not satisfy the origin requirements, import duties may still apply—even if the goods are shipped directly between the UK and the EU.
Businesses therefore need to understand:
- Where their materials come from.
- How products are manufactured.
- Whether sufficient processing has taken place in the UK or EU.
Preferential origin explained
Preferential origin allows qualifying goods to benefit from reduced or zero customs duties.
Products generally qualify if they are:
- Wholly obtained in the UK or EU.
- Manufactured using qualifying materials.
- Sufficiently processed under the product-specific origin rules.
Businesses claiming preferential treatment must be able to demonstrate that their goods meet the relevant requirements.
What are non-tariff barriers?
Brexit introduced more than just customs tariffs.
Businesses may also encounter non-tariff barriers, including:
- Customs declarations.
- Product certification requirements.
- Import and export documentation.
- Regulatory compliance checks.
- Border inspections.
These additional administrative requirements can increase the time and cost involved in international trade.
Five steps to applying Rules of Origin
Businesses trading between the UK and EU should:
1. Classify your product
Identify the correct commodity code for your goods.
2. Check the origin requirements
Review the relevant product-specific Rules of Origin under the Trade and Cooperation Agreement.
3. Obtain proof of origin
Ensure you have appropriate evidence supporting the origin status of your goods.
4. Claim preferential treatment
Complete customs declarations correctly if claiming reduced tariffs.
5. Keep accurate records
Maintain documentation supporting your origin claims in case customs authorities request verification.
Proving origin
Businesses claiming preferential tariffs must be able to provide evidence that their products satisfy the origin rules.
This may include:
- Statements on origin.
- Supplier declarations.
- Manufacturing records.
- Evidence of processing.
- Customs documentation.
Accurate record keeping remains an important part of compliance when trading internationally.
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Final thoughts
Rules of Origin remain one of the most important aspects of UK-EU trade following Brexit.
Although the system can appear complex, understanding where your products originate and keeping accurate documentation can help businesses reduce customs costs and minimise delays at the border.
Companies trading regularly with European markets should ensure they understand the latest guidance and regularly review their supply chains to remain compliant.
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