The EU Carbon Border Adjustment Mechanism is the European Union’s landmark policy designed to ensure that imported goods carry a carbon price comparable to those produced within the EU. The mechanism aims to address CBAM-related carbon leakage by discouraging companies from shifting production to regions with weaker environmental regulations, thereby maintaining market fairness and protecting climate ambition. By aligning the cost of carbon emissions across borders, CBAM encourages cleaner and more responsible industrial production globally.
Building on the EU’s internal climate framework, domestic manufacturers already pay for their emissions through the EU Emissions Trading System (EU ETS). Without CBAM, imports from countries lacking comparable carbon pricing could undercut EU producers. The CBAM closes this gap by applying a carbon cost to imported goods, preventing European industries from unfair competitive advantages. Beyond ensuring trade fairness, the EU CBAM also acts as a global driver of decarbonization. It pushes non-EU suppliers to adopt transparent emissions accounting, enhance energy efficiency, and reduce greenhouse gas emissions. In doing so, CBAM reinforces that climate compliance is now a defining factor of international competitiveness.
At present, CBAM applies to a defined set of high-emission, trade-exposed sectors. The current CBAM categories include:
Cement
Iron & Steel
Aluminium
Fertilizers
Hydrogen
Electricity
These sectors were prioritized due to their significant carbon footprints and their susceptibility to production shifting outside the EU. Over time, additional goods, particularly downstream or processed products, may be incorporated as part of future reviews of the mechanism. For all covered goods, importers are required to calculate the embedded emissions associated with the product. This includes direct emissions from production and, for specific sectors, indirect emissions such as the electricity consumed during manufacturing.
CBAM is being rolled out in stages to allow companies sufficient time to adjust their systems and supply chain data processes. The current CBAM timeline is structured as follows:
This transitional phase began on 1st October 2023 and will run until 31st December 2025. During this period, importers must submit quarterly reports detailing the embedded emissions of covered goods, but no financial payments are required. The first quarterly report, covering imports from Q4 2023 (1st October to 31st December 2023), was due on 31st January 2024. Additionally, to improve the accuracy and credibility of reported data, the EU significantly restricted the use of “default/reference values”, i.e., the estimated emission values provided for initial reporting, as of July 2024. Importers are now expected to use actual emissions data wherever feasible. This strengthening of emissions data quality is critical, as these verified figures will ultimately determine the carbon costs applied through CBAM certificates in the next phase.
Under the original regulation, the full CBAM regime, with mandatory purchase and surrender of CBAM certificates, was scheduled to begin on 1st January 2026. However, the EU introduced timing updates through the 2025 “Omnibus Simplification Package” which is basically a broader legislative update aimed at streamlining various EU reporting and compliance timelines, including CBAM. As a result, several key CBAM timelines were adjusted. CBAM certificates will now only become available from 1st February 2027, but they will apply retroactively to embedded emissions from 2026 imports. Importers must submit their first annual CBAM declaration and surrender the relevant certificates by 30th September 2027, covering 2026 emissions. In practice, while the CBAM framework is formally activated in 2026, the financial compliance component has been deferred. This provides importers with additional time to collect high-quality emissions data, strengthen internal processes, and prepare for future carbon cost exposure.
During the transitional phase, importers must report the embedded emissions in their CBAM-covered imports, including both direct emissions and, where applicable, indirect emissions. They must also disclose any carbon price already paid in the country of origin. From mid-2024, the use of default or reference emission values has been significantly restricted. Importers are now expected to obtain and report actual emissions data from their non-EU suppliers wherever possible. Once CBAM certificates become available in February 2027, importers will need to purchase certificates, priced in line with the prevailing EU ETS allowance price, and surrender them to match the embedded emissions of their imported goods. Additionally, under the revised rules, only authorized declarants approved by national authorities will be permitted to import CBAM-covered goods from 2026 onward, ensuring stronger oversight and compliance.
CBAM presents both risks and opportunities for global supply chains. Compliance costs and potential disruption are real, especially for companies that have not yet built robust emissions-data systems. However, organizations that prepare early can turn CBAM compliance into a source of competitive advantage. By assessing their CBAM-related industry exposure, engaging suppliers to obtain accurate emissions data, and investing in cleaner production routes or low-carbon inputs, companies can significantly reduce long-term carbon-cost liabilities. Because CBAM makes the carbon footprint of imported goods more visible and traceable, it encourages structural decarbonization rather than short-term compliance maneuvers. As regulatory expectations tighten and the scope of covered goods expands, early adopters will be better positioned to meet future requirements without operational shocks. Smaller importers may benefit from certain threshold exemptions under Omnibus-type reforms, but comprehensive compliance obligations will continue to apply to high-volume trade flows.
As CBAM rules evolve and timelines shift, organizations need structured guidance to navigate the mechanism’s technical and operational requirements. This is where Cognitud plays a strategic role, helping companies strengthen compliance, reduce exposure, and prepare for future regulatory phases.
Abhigyan Gupta
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CBAM, or the Carbon Border Adjustment Mechanism, is the EU’s policy that ensures imported goods bear a carbon price comparable to products made within the European Union. It aims to prevent carbon leakage, maintain fair competition, and encourage cleaner industrial production globally by requiring importers to account for the embedded emissions in their goods.
CBAM works by requiring importers of certain carbon-intensive goods to report the embedded emissions in those products and, once the definitive phase begins, purchase and surrender CBAM certificates reflecting those emissions. During the transitional phase, reporting is mandatory but no payments are required. Once certificates become available in 2027, financial compliance will begin, with certificate prices linked to the EU ETS allowance rate.
CBAM is calculated based on the embedded emissions of the imported product, including direct emissions from the production process and, for some sectors, indirect emissions such as electricity used during manufacturing. The number of certificates an importer must surrender corresponds to these embedded emissions, adjusted for any carbon price already paid in the country of origin.
Currently, CBAM applies only to specific basic materials and raw products such as cement, iron and steel, aluminium, fertilizers, hydrogen, and electricity. It does not yet apply to finished or downstream goods, though the EU may expand coverage to processed products in future regulatory reviews.
A CBAM certificate is a compliance unit that importers must buy and surrender to match the embedded emissions of their imported goods once the mechanism’s financial phase begins. The price of each certificate is linked to the EU ETS allowance price, and certificates will be purchasable from 1 February 2027 to cover emissions from 2026 imports.
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