Section 5 of 7

Trade Agreements, Rules of Origin & Reducing Duties

Why trade agreements matter to UK exporters

When your goods arrive in another country, your buyer typically faces an import duty charge — though who is responsible for paying it depends on the Incoterm agreed. Whichever party is responsible, the duty rate applied depends almost entirely on whether the UK has a trade agreement with that country, and whether your goods qualify to use it.

A trade agreement between two countries or trading blocs is, among other things, a commitment to reduce or eliminate import duties on qualifying goods traded between them. For UK exporters, this matters because your buyer’s cost of importing your goods directly affects the commercial relationship. Without a preferential arrangement, your buyer will have to pay import duty on your goods at whatever rate applies in their country. A buyer in a country with a UK trade agreement may be able to import your goods at zero or reduced duty instead — but only if the goods meet the rules of origin set out in that agreement, and only if the right documentation is in place to claim it.

The government’s Check Duties and Customs Procedures tool lets you look up the duty rate your buyer would face in any given market, including any preferential rate available under a UK trade agreement. This is worth running for your key markets: in some cases the saving is significant enough to be a real commercial differentiator, with your goods landing cheaper than a competitor’s from a country without a preferential arrangement. If you’re shipping on DDP terms and taking responsibility for import duties yourself, knowing these rates in advance is essential.

The UK has trade agreements in place with a significant number of countries, including the EU, Japan, Canada, Australia, New Zealand, Singapore, South Korea, and a number of CPTPP member countries. The terms, the duty reductions available, and the rules of origin requirements differ between each agreement — and even where an agreement exists, it is worth confirming that it is fully in force for your specific market before relying on it. Knowing which agreements apply to your markets — and whether your goods actually qualify — is where the commercial value sits.

Rules of origin — the qualifying condition

Trade agreements do not automatically apply to all goods traded between two countries. To benefit from a preferential duty rate, goods must be shown to originate in the UK — and origin, in this context, has a specific legal meaning that goes beyond where a product was packed, labelled, or dispatched from.

Origin refers to the economic nationality of the goods — the country where they were genuinely produced, grown, or manufactured. There are two ways goods can be considered to originate in the UK.

Wholly obtained goods are those produced entirely within the UK, with no materials from any other country involved. Agricultural products grown in the UK, animals born and raised here, and products made exclusively from UK-sourced materials all fall into this category. For businesses that manufacture using only UK-sourced inputs, this is a straightforward test to meet.

Sufficiently processed goods are those that include materials or components from other countries, but where enough work has been done in the UK to confer UK origin. What counts as sufficient processing varies by product and by trade agreement. Simple operations — repacking, relabelling, cleaning, or basic assembly — are not enough. The processing must genuinely transform the goods, changing their nature or classification in a meaningful way.

The specific tests used to determine whether goods are sufficiently processed differ between agreements. Some use a value-added rule, setting a maximum percentage of non-originating content. Some use a change of tariff classification rule. Some use product-specific rules that prescribe exactly what processes must take place. In many cases, a combination of rules applies — and the rules for the same product can differ between the UK-EU agreement and the UK-Japan agreement, for example.

This is the area where businesses most commonly discover that their assumptions about origin are not as solid as they thought — particularly where supply chains involve materials or components sourced from outside the UK. A sourcing change that made commercial sense can inadvertently affect whether goods still meet the rules for a key market.

Exporting to the EU — what has changed and what to be aware of

The EU remains the UK’s largest trading partner, and the UK-EU Trade and Cooperation Agreement (TCA) provides for zero tariffs on qualifying goods traded between the UK and EU member states. That is a significant benefit — but it comes with conditions that not all UK exporters have fully worked through since Brexit.

The TCA rules of origin are product-specific and in some cases demanding, particularly for manufactured goods and products with complex supply chains. Businesses that source components or materials from outside the UK need to consider whether their finished goods still meet the rules — and businesses that have not reviewed their origin position since the TCA came into force may be in for a surprise. Our Trading with the EU course covers the full picture of exporting to the EU post-Brexit, including rules of origin, documentation, and customs requirements on both sides.

Reducing duties through special procedures

Beyond trade agreements, there are customs special procedures that allow businesses to reduce, suspend, or reclaim duties in specific circumstances. Inward Processing allows goods to be imported, processed or manufactured, and then exported without paying import duties on the original materials. Outward Processing allows goods to be temporarily exported for processing or repair and reimported with duty relief on the work done abroad. Customs warehousing allows goods to be stored without paying duties until they are released for use or onward export.

These procedures exist to support businesses with particular trading models — manufacturers who import raw materials, businesses who send goods abroad for repair, traders who hold stock for multiple markets. They are not relevant to every exporter, but for those they do apply to, the duty savings can be substantial.

Each procedure has its own authorisation requirements, conditions, and compliance obligations. If you would prefer to talk it through with a specialist, our team is happy to help at team@exporter-services.co.uk.

Common mistakes around trade agreements and duties

Assuming the agreement covers your goods. Having a trade agreement with a country does not mean all goods trade at zero duty. The applicable rate depends on the commodity code, and some goods are excluded or subject to quotas even within preferential arrangements.

Not checking whether goods actually qualify. The rules of origin are the qualifying condition for preference, and they are not always straightforward. Goods that include materials or components sourced from outside the UK may not meet the rules — and claiming preference when goods do not qualify is a compliance issue with consequences for your buyer.

Leaving preference unclaimed. Some exporters do not realise their goods qualify for preference, or do not put the right documentation in place to allow the buyer to claim it. The duty saving goes unclaimed, which is a missed commercial opportunity and potentially a competitive disadvantage.

Not reviewing origin position after supply chain changes. A sourcing change that made commercial sense — switching to a cheaper supplier in a different country — can inadvertently affect whether goods still meet the rules of origin for a key market. This is the kind of thing that does not always get picked up until something prompts a review.