Carbon Border Adjustment Mechanism (CBAM)

If your business imports cement, aluminium, steel, fertilisers, electricity, or hydrogen into the EU, you need to understand CBAM. The Carbon Border Adjustment Mechanism is reshaping how the European Union manages carbon emissions from imports, and it's going to affect your bottom line starting in 2026.

This guide breaks down everything you need to know about CBAM compliance, from what it is to how it impacts your business and what you need to do next.

What is CBAM?

The Carbon Border Adjustment Mechanism (CBAM) is the EU's solution to a problem called carbon leakage. Here's what that means in plain terms.

When EU companies face strict environmental rules and carbon costs, they're at a competitive disadvantage compared to companies in countries with looser standards. This creates pressure to either move production abroad or lose market share to cheaper imports. The result? Carbon emissions don't decrease globally—they just shift to different countries.

CBAM levels the playing field by putting a carbon price on certain imports into the EU. Think of it as an extension of the EU Emissions Trading System (EU ETS), which already requires EU companies to pay for their carbon emissions. Now, imports face similar costs.

Adopted as part of the Fit for 55 package in 2023, CBAM supports the EU's goal of reaching climate neutrality by 2050. It's not just about protecting EU industries—it's about encouraging cleaner production practices worldwide.

Does CBAM Apply to Your Business?

CBAM applies if you import specific goods into the EU. Currently, these sectors are covered:

These industries were chosen because they produce significant greenhouse gas emissions and are particularly vulnerable to carbon leakage.

Important exemptions:

- Consignments valued under €150

- Goods used in military activities

If you're importing any of these products into the EU, CBAM directly impacts you. The mechanism tracks both direct emissions (from production) and indirect emissions (from electricity used in production).

How Does CBAM Work? Understanding the Two Phases

CBAM rolls out in two distinct phases, giving businesses time to adapt.

Phase 1: Transitional Period (Until 31 December 2025)

This is your preparation phase. Here's what it involves:

Quarterly reporting requirements: Importers must submit reports detailing the embedded emissions in their imported goods. This includes both direct emissions from production and indirect emissions from energy consumption.

No financial penalties: During this phase, there are no costs for the carbon embedded in your imports. Think of it as a learning period where you get familiar with the system and iron out any reporting challenges.

What you need to report:

  - Total quantity of goods imported

  - Actual embedded emissions (direct and indirect)

  - Carbon price already paid in the country of origin (if applicable)

Phase 2: Full Implementation (From 1 January 2026)

This is when CBAM becomes mandatory with financial obligations:

Annual declarations: Instead of quarterly reports, you'll submit comprehensive annual declarations.

CBAM certificates: You'll need to purchase CBAM certificates corresponding to the carbon emissions embedded in your imports. The price of these certificates will reflect the price of EU ETS allowances.

Carbon price offsetting: If you've already paid a carbon price in the country where goods were produced, you may be able to claim a reduction in your CBAM obligation.

CBAM Reporting: Your 5-Step Compliance Roadmap

Getting ready for CBAM doesn't have to be complicated. Here's a practical approach:

Step 1: Determine if CBAM Applies to You

Review your import portfolio. Are you bringing in cement, aluminium, iron and steel, fertilisers, electricity, or hydrogen? Check Annex I of the CBAM Regulation for the complete list of covered goods and precursors.

Step 2: Understand Your Reporting Obligations

During the transitional period, you need to report quarterly. From 2026 onwards, annual declarations become mandatory. Mark these deadlines in your calendar now.

Step 3: Collect Emissions Data

This is often the trickiest part. You'll need detailed information about:

- Production processes used to create your imported goods

- Direct emissions from those processes

- Indirect emissions from electricity consumption

- Any carbon pricing already applied in the country of origin

Work with your suppliers early. They'll need to provide this data, and it may take time to establish these reporting relationships.

Step 4: Calculate Your CBAM Obligation

Use the verified emissions data to calculate how many CBAM certificates you'll need. The EU provides calculation methodologies, but this step requires careful attention to detail.

Step 5: Purchase Certificates and Submit Declarations

From 2026, you'll need to buy the appropriate number of certificates and submit your annual declaration to the relevant authorities.

Why CBAM Matters for Global Trade

CBAM represents a fundamental shift in how international trade accounts for environmental impact. Here's why it matters:

Prevents carbon leakage: By ensuring imports face similar carbon costs as EU-produced goods, CBAM removes the incentive to shift production to countries with weaker environmental standards.

Drives global climate action: CBAM encourages other countries to strengthen their own climate policies. If they implement credible carbon pricing, their exporters can claim offsets against CBAM obligations.

Protects EU competitiveness: EU companies investing in cleaner production won't be undercut by cheaper, higher-emission imports.

Sets a global precedent: As one of the world's first border carbon adjustments, CBAM could inspire similar policies elsewhere, creating momentum for stronger global climate action.

Common CBAM Compliance Challenges (and How to Address Them)

Challenge 1: Getting Emissions Data from Suppliers

Many suppliers, especially in countries without carbon reporting requirements, may struggle to provide the detailed emissions data you need.

Solution: Start conversations early. Provide clear guidance on what data you need. Consider whether you can help suppliers access tools or expertise to measure their emissions.

Challenge 2: Understanding Complex Calculations

CBAM calculations involve multiple variables, conversion factors, and methodologies.

Solution: Don't go it alone. Use verified calculation tools, consult official EU guidance, or work with specialists who understand EU carbon reporting requirements.

Challenge 3: Managing Administrative Burden

Quarterly reporting during the transition, then annual declarations, certificate purchases, and ongoing compliance monitoring add up.

Solution: Build CBAM compliance into your existing supply chain and sustainability processes. Automate where possible. Assign clear responsibilities within your team.

Challenge 4: Budget Planning for 2026

The cost of CBAM certificates will fluctuate with EU ETS prices, making it hard to predict expenses.

Solution: Monitor ETS prices regularly. Build conservative estimates into your budgeting. Consider whether supplier negotiations or production changes could reduce embedded emissions and therefore CBAM costs.

What Happens Next? CBAM Timeline

Now - 31 December 2025: Transitional period. Submit quarterly reports. No financial obligation yet, but use this time to refine your processes.

1 January 2026: Full CBAM implementation begins. First annual declaration and certificate purchase required.

Beyond 2026: The EU may expand CBAM to cover additional sectors and greenhouse gases. Stay informed about potential changes.

Getting Ready for CBAM: Action Steps

If CBAM applies to your business, here's what to do right now:

The Bottom Line

CBAM isn't just another compliance requirement—it's a major shift in how the EU addresses climate change through trade policy. For importers, it creates new obligations but also opportunities to work with cleaner suppliers and potentially gain competitive advantages.

The transitional period until end of 2025 gives you time to get your systems right. Use it wisely. The businesses that prepare now will find CBAM compliance manageable. Those that wait until 2026 may face rushed implementations, higher costs, and potential penalties.

Need Help with CBAM Compliance?

Navigating CBAM reporting can feel complex, especially if you're managing it for the first time. At PNZ Advisory, we help businesses understand their CBAM obligations and build practical compliance processes that work.

Contact us to discuss how we can support your CBAM journey.

 References

Regulation (EU) 2023/956

European Commission – CBAM explanation and its applicability

CBAM Questions and Answers

Council of the EU, “ Fit for 55': Council adopts key pieces of legislation delivering on 2030 climate targets”

The Paris Agreement, UNFCCC

LME, CBAM Consultation and Sustainability Discussion

House of Commons Library, Carbon Border Adjustment Mechanism

German Environment Agency, Third-country carbon pricing under the EU CBAM

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