UK CBAM 2027: what importers must do now

The UK's Carbon Border Adjustment Mechanism launches in January 2027, and it will reshape how importers of carbon-intensive materials calculate, report and pay for embedded emissions. Unlike voluntary frameworks, CBAM is compulsory – and non-compliance carries financial and reputational risk.

The mechanism applies to imports of steel, cement, aluminium, fertiliser, electricity and organic chemicals. Organisations will need to track scope 3 emissions (embedded in purchased goods) with precision. Here's the friction: most UK suppliers today lack standardised emissions data. That means importers will shoulder the burden of either demanding verified emissions statements from overseas producers or paying the carbon price anyway.

The webinar, led by edie and law firm Weightmans, addressed three core challenges. First, defining scope – which products trigger CBAM, and at what carbon intensity threshold? Second, data governance – how to audit third-party emissions claims without in-house technical expertise. Third, timing – businesses have less than three years to embed new procurement workflows, supplier questionnaires and accounting systems.

Frankly, most organisations importing these materials have not started. The risk is not theoretical: CBAM penalties are levied per tonne of embedded carbon, not as a flat fine. A mid-sized importer of cement could face six-figure charges within the first year if supplier data is incomplete or inaccurate.

The real question isn't whether CBAM will bite – it will. The question is whether organisations will treat it as compliance theatre (a box to tick) or as a supply chain redesign trigger. Early movers already using GHG Protocol scope 3 methodology have an advantage. Everyone else is late.

UK CBAM: Understanding the risks, managing carbon data and preparing for compliance

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