For the better part of three years, the India-UK Comprehensive Economic and Trade Agreement existed largely as a diplomatic achievement — a headline-grabbing pact signed amid considerable fanfare, promising duty-free access for the overwhelming majority of India's exports to Britain. As of July 15, 2026, it is no longer just an agreement on paper. CETA has formally come into force, and with it comes a question that matters more to exporters on the ground than any ministerial press release: how, exactly, does a company prove that its product qualifies for the preferential tariffs the agreement promises?
The answer arrived in the form of a detailed notification from India's Finance Ministry, issued through the Central Board of Indirect Taxes and Customs, setting out what are formally titled the Customs Tariff (Determination of Origin of Goods under Comprehensive Economic and Trade Agreement between India and the United Kingdom of Great Britain and Northern Ireland) Rules, 2026. It is a mouthful of a title for what amounts to one of the most consequential pieces of implementation detail in the entire trade agreement — the rulebook that determines whether a shirt sewn in Tirupur, a diamond cut in Surat, or a machine part manufactured in Coimbatore actually counts as "Indian-made" for the purposes of claiming duty-free treatment in the UK market.
WHY RULES OF ORIGIN MATTER MORE THAN THE HEADLINE TARIFF NUMBERS
It is easy for the public conversation around any free trade agreement to fixate on the big number — in this case, that CETA secures duty-free access for 99 percent of India's exports to the UK, covering nearly the entire trade basket between the two countries. But that headline figure means little without a robust, enforceable mechanism to determine which goods genuinely qualify as originating in India or the UK, as opposed to goods merely passing through one country from a third country seeking to exploit the tariff concession. Without rules of origin, a free trade agreement is effectively unenforceable — any exporter, anywhere in the world, could theoretically route goods through India or the UK to claim benefits never intended for them.
This is precisely the loophole the newly notified rules are designed to close. Under the framework, a product will only qualify as originating in India or the UK under three possible pathways: if it is wholly obtained in either country (think agricultural produce grown and harvested domestically, or minerals extracted from domestic mines); if it is produced entirely from originating materials sourced within the two countries; or — the more complex and commercially significant category — if it is manufactured using non-originating inputs, provided the finished product meets specific, product-by-product origin requirements laid out under the agreement.
That third category is where the real complexity lives, and where exporters will need to invest the most compliance effort. For many manufactured goods, particularly in sectors like engineering, auto components, textiles and electronics, it is common — even standard practice — to source certain raw materials or intermediate components from third countries such as China, given global supply chain realities. The rules of origin framework does not disqualify such products outright; instead, it sets thresholds for how much of a product's value must be added domestically, and prescribes specific transformation or processing criteria that must be met for the finished good to still count as originating in India.
WHAT THE RULES ACTUALLY REQUIRE
The notification lays out several operational requirements that exporters, customs brokers and compliance teams will need to internalise quickly. First, the framework prescribes methods for calculating what is termed the "qualifying value content" of a good — essentially, a formula for determining how much of a product's value derives from originating materials and processing versus non-originating inputs. Second, it stipulates that the final, substantive production process for a good must take place within the exporting country itself, subject to a limited set of exceptions — a provision designed to prevent superficial finishing touches, like repackaging or basic assembly, from being used to claim origin status for goods that were substantively manufactured elsewhere.
Third, and perhaps most relevant to exporters' day-to-day operations, the rules formalise the certificate of origin as the essential document required to claim preferential tariff treatment. Under the framework, authorised entities in both India and the UK are permitted to issue these certificates within their respective jurisdictions. For Indian exporters, this typically means engaging with designated issuing authorities — a process that adds a compliance step to export documentation but one that is now unavoidable for any company seeking to benefit from the tariff concessions CETA offers.
The notification also addresses a scenario that trade compliance specialists flag as a common source of disputes under any free trade agreement: what happens when goods pass through a third, non-signatory country en route from India to the UK, or vice versa. To prevent misuse, the rules require that any such goods remain under continuous customs supervision while in transit and that they not undergo any processing beyond what is strictly necessary for transportation, storage, preservation or logistical handling. In other words, a shipment cannot be substantively altered or repackaged in a third country and still retain its originating status — a safeguard against exactly the kind of tariff-shopping the rules of origin framework exists to prevent.
Crucially, the framework also grants Indian and UK customs authorities explicit powers to verify origin claims, with the ability to deny preferential tariff treatment to any consignment that fails to meet the prescribed conditions upon inspection. This gives the rules real enforcement teeth, rather than leaving compliance purely as a matter of exporter self-certification. At the same time, the notification builds in a degree of commercial flexibility, allowing importers who fail to claim tariff benefits at the time of import to retroactively claim those benefits later, provided they can substantiate the origin of the goods — a provision that should reduce the administrative burden on smaller exporters who may not have fully streamlined their documentation processes by the July 15 implementation date.
WHICH SECTORS STAND TO GAIN THE MOST
Trade analysts tracking the rollout point to a cluster of labour-intensive industries as the biggest beneficiaries of the newly operationalised tariff framework: textiles and apparel, marine products, leather goods, footwear, sporting goods, toys, and gems and jewellery. These sectors have historically struggled to compete on price against rivals like Vietnam, Bangladesh and China in Western markets, in large part because those competitor nations often enjoy more favourable existing tariff arrangements with the UK and EU. CETA's duty-free access, once fully operationalised through functioning rules of origin, is expected to materially narrow that competitive gap for Indian exporters in these categories.
