Understanding the origin of goods is one of the most important aspects of customs compliance. Origin determines where a product is considered to have been manufactured or produced, and it directly affects the import duty payable, eligibility for preferential rates under trade agreements, and the type of documentation required.
Getting origin wrong can be costly; if goods are declared with an incorrect country of origin, traders may miss out on duty reductions or face penalties for claiming preference incorrectly. This article explains the two main types of origin used in customs clearance operations: non‑preferential origin and preferential origin.
Non‑Preferential Origin
Non‑preferential origin is the simpler of the two concepts. It is based on the location of the last substantial, economically‑justified processing of the goods. In practical terms, this means the country where the final qualifying manufacturing process took place.
Goods can also take on origin from a country if they are wholly obtained there. For example, cheddar cheese produced in the UK from UK milk is wholly obtained and therefore has UK origin.
Example: Tractor Engine Assembly
Consider a UK manufacturer producing tractor engines. The individual components may be sourced from suppliers both in the UK and overseas. These parts are brought together in a UK factory and assembled into a complete engine.
Even though many components may not be of UK origin individually, the assembly process creates a new product (the engine) with a new function. The finished engine therefore takes UK non‑preferential origin.
Preferential Origin
Preferential origin is more complex. It depends entirely on the specific trade agreement between the UK and the destination country. These agreements contain:
- General rules of origin (applying to all goods traded), and
- Product‑specific rules of origin (tailored to the specific commodity being traded)
These rules determine whether goods can qualify for reduced or zero import duty at destination.
Example: Exporting the Engine to the EU
Let us suppose that the UK‑assembled tractor engine is being sold to a customer in the EU. Under the UK–EU Trade and Cooperation Agreement (TCA), engines classified under HS headings 8407 and 8408 must meet a maximum non‑originating material (MaxNOM) rule.
The rule states that:
No more than 50% of the ex‑works (EXW) price of the finished engine may consist of non‑originating materials.
“Originating” materials include both UK and EU components in this case. Non‑originating materials are those sourced from outside the UK or EU.
Applying the Rule
If the engine has an EXW price of £10,000:
- Up to £5,000 worth of non‑originating materials may be used
- If non‑originating materials exceed 50%, the engine does not qualify for preferential origin
For example, if 60% of the parts are sourced from countries such as China or Brazil, the engine fails the rule — even though it was fully assembled in the UK. As a result, the EU customer may face a significant import duty bill on arrival.
Why This Matters
The difference between non‑preferential and preferential origin often causes confusion. A product finished in the UK does not automatically qualify for reduced import duties abroad. Preferential origin depends on meeting the specific rule of origin in the relevant trade agreement.
To avoid unexpected costs, UK supply chain professionals should:
- Become familiar with the layout of the trade agreement that the UK has with the country their goods are destined for
- Record where components are sourced
- Review whether their manufacturing process meets the minimum requirements for substantial processing
- Ensure they can provide valid proof of origin
- Communicate with both suppliers and customers about origin changes
We will explore origin documentation — including Statements on Origin, EUR1 Movement Certificates and UK Certificates of Origin — in a future article.
For now, a full list of the UK’s trade agreements and their published texts is available here: https://www.gov.uk/government/collections/the-uks-trade-agreements