Goods moving through the EU may encounter two carbon checks
Products entering the European Union before being shipped onward to Britain may be subject to carbon-related assessments in both jurisdictions, creating additional compliance requirements for distributors and potentially affecting transaction costs.
The issue was highlighted by a compliance expert in Carbon Pulse on 22 September, with implications for traded products including steel, aluminium, cement, fertiliser and hydrogen. The UK’s own carbon border mechanism is scheduled to take effect on 1 January 2027.
An EU import followed by a UK import does not necessarily result in the same emissions being charged twice at their full value. HM Revenue & Customs (HMRC) provides for relief linked to carbon prices already paid, provided the relevant conditions and evidence requirements are met.
Carbon-price relief depends on qualifying schemes
Under HMRC guidance, relief may apply where the emissions associated with imported goods have been covered by an eligible carbon-pricing arrangement. Such arrangements can include a carbon tax, an emissions trading system, or a mechanism that places a price on the embodied emissions of imported products.
However, the existence of an earlier carbon payment is not sufficient on its own. To support a relief claim, the required carbon-pricing evidence must be provided, including a verification form completed by an independent verifier that meets the applicable standards.
This makes the distinction between a carbon cost incurred earlier in the supply chain and a formally recognised qualifying carbon price important for companies moving goods between markets.
Documentation can determine the final exposure
For distributors, the practical issue extends beyond calculating the applicable carbon rate. Customs treatment, eligibility for relief and the evidence supporting the claim can all affect the amount ultimately payable.
A carbon charge incurred when goods enter the EU cannot simply be treated as automatically offsetting a subsequent UK calculation. The treatment depends on whether the earlier carbon price qualifies under the relevant rules and whether the documentation needed to demonstrate it is available.
The outcome may therefore differ depending on how the supply chain is structured, including whether goods are routed through an EU trading hub before reaching Britain or are delivered directly to the UK.
Supply-chain records become part of the carbon cost
The developing UK-EU border environment puts greater emphasis on maintaining records that can follow goods through successive transactions. For distributors, the commercial significance of a carbon payment may depend as much on the supporting evidence as on the amount initially paid.
As the UK CBAM approaches its 2027 start, companies handling covered goods across both jurisdictions will need to distinguish between the carbon assessments themselves and the documentation required to obtain any available relief. The ability to demonstrate where and how an emissions-related price was applied can directly affect the treatment of subsequent imports.
