CBAM obligations apply to EU electricity importers under the definitive regime introduced on 1 January 2026. Importers must account for embedded emissions and surrender Carbon Border Adjustment Mechanism certificates for electricity imported in 2026. The first annual declaration and certificate surrender for those 2026 imports are due by 30 September 2027, according to the European Commission’s electricity-specific CBAM FAQ and information on the definitive regime. Regulation (EU) 2025/2083 and an OECD customs implementation analysis dated October 2026 are also cited as references.
Electricity is treated as a covered imported good for CBAM purposes. Importers cannot rely on the general 50-tonne de minimis exemption that is available for certain other CBAM goods. The mass-based threshold does not allow smaller electricity transactions to be excluded from CBAM, so importers must consider the relevant customs declaration, carbon-accounting methodology, and certificate obligations. This applies to electricity imports, including those involving cross-border purchases across Serbia and neighbouring markets.
Who must submit CBAM declarations for electricity
The identity of the authorised CBAM declarant depends on how import capacity is allocated and declared. In general, the importer is the declarant, or an eligible indirect customs representative may assume the applicable obligations. Where electricity import capacity is explicitly allocated and qualifying conditions are met, the entity allocated and nominating that capacity, together with the entity declaring the import to customs, is considered an authorised CBAM declarant. In that situation, no separate application for authorisation is described as being required.
Embedded emissions and evidence requirements
Electricity flows across interconnected networks, where commercial transactions, scheduled deliveries, and physical power flows do not always align with a simple bilateral shipment. Under the customs and carbon rules, this requires coordination between commercial contracts, transmission arrangements, and customs declarations. Importers must account for embedded emissions and surrender corresponding certificates under the applicable rules. The documentation needs to support which quantities were imported and how those quantities relate to emissions calculations.
For power produced in a non-EU country, traded through another country, and then brought into the EU, the CBAM country of origin is the country of production. It is not automatically the intermediate trading country. Electricity entering and leaving the EU under an applicable customs transit procedure without being released for free circulation is not treated in the same way as electricity imported for EU consumption. Importers therefore need to align origin reporting with production location rather than intermediate trading steps.
Importers seeking to report actual emissions instead of default values must meet eligibility requirements set out in the applicable framework. Their claims require contractual evidence, production and metering records, transmission nominations, and independent verification. Documentation must substantiate both quantities and time periods claimed for emissions reporting. A renewable electricity certificate or a contract describing power as green is not sufficient on its own to demonstrate compliance with every condition needed to use actual emissions.
Importers also need their CBAM emissions information to correspond to the relevant electricity imports. Records must be able to withstand regulatory scrutiny by reconciling customs declarations with electricity-scheduling data, generation information, and contractual obligations. The materials cited also include an OECD customs implementation analysis dated October 2026 for the customs dimension. This reconciliation requirement links carbon reporting inputs to customs documentation and operational scheduling data.
Certificate purchases timing and allocation of costs
Purchases of certificates for 2026 electricity imports begin in February 2027, ahead of the annual declaration and surrender deadline. The gap between imports and certificate settlement creates regulatory exposure before settlement is completed. As a result, electricity contracts are described as needing provisions covering financing future purchases, carbon-related price adjustments, and responsibility for obtaining emissions information. These contract elements affect how compliance costs are managed before certificate settlement occurs.
The party responsible for the CBAM declaration does not have to be the same as the party bearing the cost. An EU trader may handle CBAM declaration responsibilities while a generator, intermediary, or industrial customer assumes carbon-related financial costs under contract terms. Electricity-intensive sectors such as steelworks, aluminium manufacturers, cement producers, and other industrial consumers buying imported power may therefore face CBAM-related costs through procurement arrangements even if they are not the declarant. This separation between declarant role and cost bearer is relevant for structuring cross-border transactions.
The requirements also apply to electricity transactions involving Serbia, Montenegro, and neighbouring EU markets where power can be sold through multiple counterparties and cross-border trading arrangements. Western Balkan exporters have a commercial incentive to provide EU counterparties with clear, reliable, independently verifiable electricity documentation. Competitive positioning in cross-border trading is described as increasingly linked to documenting what was imported, where it was generated, which entity bears the carbon obligation, and details including price and origin of power. As a result, documentation needs extend beyond commercial terms into emissions-relevant information.
As the first annual compliance deadline approaches in 2027, CBAM responsibilities are expected to feature more prominently in electricity procurement across Southeast Europe. The arrangements described must account for both the identity of the declarant and evidence supporting emissions reported for each relevant import. This includes ensuring that declared information aligns with customs declarations and supporting operational records used in emissions calculations.