Trend watch: Carbon border adjustment mechanism (CBAM) implementation in 2026 — signals, winners, and red flags

The EU's Carbon Border Adjustment Mechanism entered its definitive phase on January 1, 2026, moving from quarterly reporting obligations to actual financial payments on embedded emissions in imported goods. With more than 500,000 declarants registered on the CBAM Transitional Registry by late 2025, and the first certificates set for purchase in Q2 2026, the mechanism is already reshaping trade flows, procurement strategies, and capital allocation across six covered sectors. This is the most consequential carbon pricing policy since the EU Emissions Trading System launched two decades ago.

Quick Answer

CBAM implementation in 2026 is defined by five signals: the shift from reporting-only to financial liability, the scramble among non-EU exporters to verify embedded emissions, growing pressure for equivalent carbon pricing mechanisms in trading partner nations, the emergence of specialized CBAM compliance technology platforms, and the expansion of product scope discussions beyond the initial six sectors. Companies that treated the 2023-2025 transitional period as a data-gathering exercise are now positioned to manage costs. Those that deferred action face certificate costs that could reach 3-8% of import value for carbon-intensive goods.

Why It Matters

CBAM is not simply a tariff. It is a structural repricing of global trade based on carbon intensity. The mechanism requires EU importers to purchase CBAM certificates corresponding to the embedded emissions in covered goods: cement, iron and steel, aluminium, fertilizers, electricity, and hydrogen. Certificate prices mirror the EU ETS allowance price, which averaged EUR 65-70 per tonne of CO2 equivalent in early 2026 (European Commission, 2026). Importers can deduct costs if a carbon price was already paid in the country of origin, creating a powerful incentive for exporting nations to implement their own carbon pricing.

The financial stakes are significant. The European Commission estimates annual CBAM certificate revenue at EUR 1.5-2.5 billion once full implementation stabilizes (European Commission, 2026). For individual companies, the exposure depends on product carbon intensity: a steel importer bringing 100,000 tonnes of hot-rolled coil from a coal-based blast furnace operation faces potential annual certificate costs exceeding EUR 15 million, compared to EUR 2-3 million for electric arc furnace steel from a grid with moderate renewable penetration.

Key Concepts

Embedded emissions refer to the direct and indirect CO2 emissions generated during the production of CBAM-covered goods, including Scope 1 process emissions and, for certain products, Scope 2 electricity emissions.

CBAM certificates are purchased by authorized declarants (EU importers) and surrendered annually to cover the embedded emissions of their imports. Prices track the weekly average EU ETS auction price.

Default values are standardized emission factors assigned by the European Commission for products where actual production data is unavailable. Default values are deliberately set above average intensities to incentivize actual data reporting.

Authorized declarants are EU-based importers registered with their national CBAM authority. Only authorized declarants may import CBAM-covered goods after the transitional period.

What's Working

The transitional period from October 2023 through December 2025 achieved its primary objective: building a data infrastructure for embedded emissions reporting. More than 3.8 million CBAM reports were filed during the transition, covering approximately EUR 170 billion in imports of covered goods (European Commission, 2026). While data quality varied widely, the reporting exercise forced supply chains to establish communication channels for emissions data that did not previously exist.

ArcelorMittal, the world's largest steelmaker outside China, invested EUR 50 million in emissions tracking systems across its global operations during the transitional period. The company can now provide verified embedded emissions data for each production route and facility, giving its EU customers a competitive advantage over importers relying on default values. ArcelorMittal's Sestao plant in Spain, which produces steel using electric arc furnace technology powered by 100% renewable electricity, reports embedded emissions below 0.4 tonnes CO2 per tonne of steel, compared to the global average of 1.85 tonnes (World Steel Association, 2025).

BASF restructured its fertilizer procurement strategy in anticipation of CBAM financial obligations. The company shifted 35% of its nitrogen fertilizer imports from natural-gas-intensive Middle Eastern producers to European manufacturers with lower embedded emissions, even at a 5-8% price premium, because the CBAM certificate cost differential exceeded the procurement premium. BASF estimates this shift saved EUR 12 million in annualized CBAM costs while reducing supply chain emissions by 180,000 tonnes CO2 (BASF Annual Report, 2025).

National CBAM authorities in major importing member states, particularly Germany, the Netherlands, and Italy, have built functional digital infrastructure for declarant registration and certificate transactions. Germany's CBAM authority processed 45,000 declarant registrations by December 2025, with 92% approval rates and average processing times of 14 business days (German Federal Environment Agency, 2025).

What's Not Working

Data quality from non-EU producers remains the most significant implementation challenge. An analysis by the European Court of Auditors found that 40% of transitional period reports relied on default values rather than actual production data, and among reports using actual data, 25% contained inconsistencies that would not pass verification under the definitive phase requirements (European Court of Auditors, 2025). The gap is particularly acute for imports from countries without established emissions monitoring infrastructure.

The verification framework for third-country installations is underdeveloped. CBAM requires that embedded emissions data from non-EU producers be verified by accredited verifiers, but fewer than 200 verifiers globally have received CBAM-specific accreditation. This bottleneck creates delays and cost pressures, with verification fees for non-EU installations ranging from EUR 15,000 to EUR 80,000 per facility depending on complexity and location.

Small and medium enterprises face disproportionate compliance burdens. While large multinationals like ArcelorMittal and BASF can absorb the cost of emissions tracking systems and dedicated compliance teams, SME importers with annual CBAM-covered imports below EUR 5 million often lack the technical expertise to calculate embedded emissions, negotiate data sharing with foreign suppliers, or navigate the certificate purchase process.

Trade tensions are escalating. India, Turkey, and Brazil have formally challenged CBAM at the World Trade Organization, arguing that it constitutes a discriminatory trade barrier (WTO, 2025). While the EU maintains that CBAM is compliant with WTO rules because it treats domestic and imported goods equally under the ETS framework, the disputes create uncertainty for importers and may trigger retaliatory measures.

Key Players

Established Leaders

European Commission DG TAXUD: The directorate-general responsible for CBAM implementation, managing the centralized CBAM registry, certificate issuance, and default value methodology.

SGS SA: Global testing and verification company that has built the largest network of CBAM-accredited verifiers, with 85 accredited auditors across 30 countries as of early 2026.

Bureau Veritas: French verification and certification group offering end-to-end CBAM compliance services including embedded emissions calculation, third-party verification, and declarant support.

Deloitte: Provides CBAM advisory services to Fortune 500 importers, including exposure assessments, procurement optimization, and regulatory strategy across EU member states.

Emerging Startups

Carbmee: Munich-based startup providing AI-powered carbon management software with a dedicated CBAM compliance module that automates embedded emissions calculations using supplier data integration. Raised EUR 20 million in Series A funding in 2025.

Emitwise: London-based carbon accounting platform that offers automated CBAM reporting and scenario modeling for importers, integrating directly with customs declaration systems.

CBAM.eu: Specialized compliance platform offering default value calculations, supplier data collection workflows, and certificate cost forecasting for EU importers.

Vaayu: Berlin-based real-time carbon tracking platform that expanded into CBAM compliance for retail and manufacturing importers, connecting product-level emissions data to customs declarations.

Key Investors and Funders

European Investment Bank: Providing technical assistance grants for CBAM compliance in EU partner countries through the NDICI-Global Europe framework.

Breakthrough Energy Ventures: Investing in industrial decarbonization technologies that reduce embedded emissions for CBAM-exposed exporters.

Climate-KIC: EU-funded climate innovation initiative supporting startups developing CBAM compliance and carbon accounting solutions.

Signals to Watch in 2026

Signal 1: Certificate price volatility. CBAM certificate prices are mechanically linked to EU ETS prices, which have shown 30% intra-year volatility since 2023. Importers who do not hedge certificate costs face significant financial exposure. Watch for the emergence of CBAM certificate futures and hedging instruments.

Signal 2: Scope expansion discussions. The European Commission is required to assess CBAM scope expansion by 2027, potentially adding organic chemicals, polymers, and downstream products like automobiles and machinery. Companies in these sectors should begin embedded emissions measurement now.

Signal 3: Carbon club formation. The UK's own CBAM takes effect January 2027, and Canada has announced a parallel mechanism. Watch for mutual recognition agreements that allow carbon prices paid in one jurisdiction to be credited against CBAM obligations in another, forming a de facto "climate club" among aligned economies.

Signal 4: Supplier switching patterns. Early data suggests EU importers are shifting procurement toward lower-carbon suppliers, even when geographic proximity or price would favor higher-carbon alternatives. The European Aluminium Association reports that imports from hydro-powered Norwegian and Icelandic smelters increased 18% in 2025, while imports from coal-dependent Chinese smelters declined 12% (European Aluminium Association, 2025).

Signal 5: Default value phase-out pressure. The European Commission has signaled that default values will become progressively more punitive over time, increasing by 5-10% annually above actual regional averages. This creates an escalating incentive for actual data reporting and will squeeze importers who remain on default values.

Red Flags

Compliance theater without data quality. Some exporters are providing embedded emissions declarations that lack the granularity or auditability required under the definitive phase. Importers who accept these declarations without verification face both financial penalties (up to EUR 50 per tonne of unreported emissions) and reputational risk.

Over-reliance on single-source compliance providers. The CBAM compliance services market is immature, and some providers offer tools that have not been tested against real verification audits. Importers should ensure their compliance approach has been validated by accredited verifiers.

Ignoring indirect emissions. The inclusion of Scope 2 electricity emissions in CBAM calculations for aluminium and hydrogen catches some importers off guard. A smelter powered by coal electricity may face certificate costs 3-4x higher than one on hydropower, even with identical process efficiency.

Action Checklist

1. Complete authorized declarant registration with your national CBAM authority if not already done
2. Map all CBAM-covered imports by CN code, origin country, and supplier facility
3. Request verified embedded emissions data from non-EU suppliers for each production installation
4. Compare actual emissions data against European Commission default values to quantify cost exposure
5. Model certificate costs under ETS price scenarios of EUR 50, EUR 75, and EUR 100 per tonne
6. Evaluate supplier switching or procurement diversification for highest-exposure product categories
7. Engage an accredited CBAM verifier to validate supplier emissions declarations
8. Establish internal processes for quarterly certificate purchasing and annual surrendering

FAQ

What products does CBAM cover in 2026? CBAM covers six product categories: cement, iron and steel, aluminium, fertilizers, electricity, and hydrogen. Each category includes specific CN (Combined Nomenclature) codes. Downstream products such as screws, bolts, and steel structures are included when they fall within defined CN codes.

How much will CBAM cost importers? Costs depend on the carbon intensity of imported goods and the EU ETS price. At EUR 70 per tonne CO2, importing one tonne of blast furnace steel with 1.85 tonnes CO2 embedded emissions costs approximately EUR 130 in certificates. Importers can deduct any carbon price already paid in the country of origin.

Can exporters avoid CBAM by routing through non-EU countries? No. CBAM applies based on the country where goods were produced, not the country of export. Anti-circumvention provisions target transshipment, minor processing, and other avoidance strategies.

What happens if actual emissions data is unavailable? The European Commission assigns default values based on average emission intensities for the relevant product and producing country. These default values are typically set at the upper end of regional ranges, making them more expensive than actual data for most efficient producers.

How does CBAM interact with existing carbon pricing in exporting countries? Importers can reduce their CBAM certificate obligations by the amount of any carbon price effectively paid in the country of origin. This includes emissions trading systems and carbon taxes, but not energy taxes or subsidies.

Sources

1. European Commission. "CBAM Definitive Phase Implementation Report." Directorate-General for Taxation and Customs Union, 2026.
2. World Steel Association. "Steel Statistical Yearbook 2025: Emissions Intensity by Production Route." Worldsteel, 2025.
3. BASF SE. "Annual Report 2025: Procurement and Supply Chain Sustainability." BASF, 2025.
4. European Court of Auditors. "CBAM Transitional Period Data Quality Assessment." ECA Special Report, 2025.
5. German Federal Environment Agency. "CBAM Declarant Registration and Compliance Report." UBA, 2025.
6. European Aluminium Association. "Trade Flow Analysis: CBAM Impact on Aluminium Imports." European Aluminium, 2025.
7. World Trade Organization. "Dispute Settlement: CBAM-Related Trade Concerns." WTO, 2025.