CBAM vs EU ETS: What Is the Difference?
The Carbon Border Adjustment Mechanism (CBAM) and the EU Emissions Trading System (EU ETS) are two distinct but complementary carbon pricing instruments established by the European Union to reduce greenhouse gas emissions. While CBAM targets importers of certain carbon-intensive goods from non-EU countries, EU ETS regulates emissions from installations and sectors within the EU. Understanding their differences, overlaps, and applicability is essential for compliance and avoiding significant financial penalties.
The Carbon Border Adjustment Mechanism (CBAM) is established under Regulation (EU) 2023/956 and is a carbon pricing tool designed to equalize the cost of carbon emissions embedded in imported goods to the EU market, specifically targeting imports of steel, cement, aluminium, fertilisers, electricity, and hydrogen from non-EU countries. Its transitional phase runs from 2023 to 2025, with full financial obligations starting on 1 January 2026.
The EU Emissions Trading System (EU ETS) is a cap-and-trade system established by Directive 2003/87/EC (as amended) that regulates greenhouse gas emissions from power generation, heavy industry, and aviation within the EU. The current phase, Phase 4, covers the period from 2021 to 2030 and sets a declining cap on total emissions, requiring installations to surrender allowances corresponding to their emissions.
Key Differences Between CBAM and EU ETS
The fundamental difference between CBAM and EU ETS lies in their scope and target entities. EU ETS applies to installations and sectors located within the European Union, regulating their emissions through a cap-and-trade system. In contrast, CBAM applies to importers of specific carbon-intensive goods from outside the EU, ensuring that imported products face a carbon price equivalent to that paid by EU producers under the ETS.
This design prevents carbon leakage by leveling the playing field between EU producers subject to carbon costs and foreign producers who might otherwise have a competitive advantage due to laxer carbon regulations in their countries.
Comprehensive Comparison Table
| Dimension | Carbon Border Adjustment Mechanism (CBAM) | EU Emissions Trading System (EU ETS) |
|---|---|---|
| Legal Basis | Regulation (EU) 2023/956 | Directive 2003/87/EC (as amended) |
| Scope | Importers of steel, cement, aluminium, fertilisers, electricity, hydrogen from non-EU countries | EU-based installations in power generation, heavy industry sectors, and aviation within the EU |
| Carbon Pricing Mechanism | Carbon price adjustment on imports based on embedded emissions and EU carbon price | Cap-and-trade system with emission allowances allocated or auctioned |
| Timeline | Transitional phase: 2023–2025; Full financial obligations from 1 January 2026 | Phase 4: 2021–2030 |
| Obligations | Declaration of embedded emissions; purchase and surrender of CBAM certificates equivalent to EU carbon price | Monitoring, reporting, and surrendering emission allowances corresponding to verified emissions |
| Penalties for Non-Compliance | Fines ranging from €50 to €150 per tonne of undeclared CO2 emissions | Fine of €100 per tonne of excess CO2 emissions plus obligation to surrender missing allowances |
| Enforcement Authority | National customs authorities in EU Member States, coordinated by the European Commission | National competent authorities designated by EU Member States |
| Adjustment for Carbon Price Paid Abroad | CBAM certificate obligations are reduced if an equivalent carbon price was paid in the country of origin | Not applicable |
| Objective | Prevent carbon leakage by equalizing carbon costs on imports | Reduce emissions within the EU through a market-based cap-and-trade system |
Where CBAM and EU ETS Overlap and Diverge
Both CBAM and EU ETS aim to reduce carbon emissions and prevent carbon leakage, but they operate in complementary domains:
- Overlap: Both mechanisms price carbon emissions and incentivize emission reductions. CBAM’s pricing is linked to the EU ETS carbon price, ensuring consistency. If an importer’s country of origin has a carbon price equivalent to the EU ETS, the CBAM obligation is reduced accordingly.
- Divergence: EU ETS regulates emissions from installations physically located within the EU, requiring them to hold emission allowances. CBAM targets importers of certain goods from outside the EU, imposing a carbon cost on embedded emissions to prevent competitive distortions.
This complementary design ensures that both domestic producers and importers face comparable carbon costs, closing loopholes that could undermine the EU’s climate goals.
Which Regulation Applies to Your Business?
Determining whether CBAM or EU ETS applies depends primarily on your business location and activities:
- If your company operates installations within the EU in sectors such as power generation, steel production, cement manufacturing, or aviation, you are likely subject to the EU ETS. You must monitor, report, and surrender allowances for your emissions according to Directive 2003/87/EC.
- If your company imports covered goods (steel, cement, aluminium, fertilisers, electricity, hydrogen) into the EU from non-EU countries, you fall under the CBAM regime. From 1 January 2026, you will have to declare embedded emissions and purchase CBAM certificates accordingly.
- If you both produce within the EU and import covered goods, you must comply with both mechanisms independently.
- If your imports are outside the CBAM product scope or your installations are outside the EU ETS sectors, neither regulation applies, but you should monitor future EU climate policies as scope expansions are possible.
Early preparation is critical: non-compliance with either regulation can result in substantial fines and reputational damage.
Understanding Compliance Obligations and Penalties
Both CBAM and EU ETS impose strict compliance obligations with significant penalties for breaches:
- EU ETS: Companies must monitor and report emissions annually and surrender allowances equal to their verified emissions. Failure to surrender allowances results in a fine of €100 per tonne of excess CO2 emissions, plus the obligation to surrender missing allowances in the following year.
- CBAM: Importers must declare embedded emissions and purchase CBAM certificates. Undeclared emissions or failure to surrender certificates can lead to fines ranging from €50 to €150 per tonne of CO2 not accounted for.
Both regimes require robust data collection, emissions verification, and timely reporting to avoid penalties.
Truth Anchor
The Carbon Border Adjustment Mechanism is codified in Regulation (EU) 2023/956, published in the Official Journal of the European Union on 12 April 2023, with full financial obligations commencing on 1 January 2026. The EU Emissions Trading System is established under Directive 2003/87/EC, last amended in 2021 for Phase 4 running until 2030. Non-compliance penalties are set at €100 per tonne CO2 for EU ETS and between €50 and €150 per tonne CO2 for CBAM.
Frequently Asked Questions
1. Can a company be subject to both CBAM and EU ETS simultaneously?
Yes. If your company operates installations within the EU covered by the EU ETS and also imports CBAM-covered goods from outside the EU, you must comply with both regulations independently.
2. How does CBAM adjust for carbon pricing already paid in the country of origin?
CBAM reduces the number of certificates required if the importer can prove that an equivalent carbon price was paid in the country of origin. This prevents double carbon pricing and encourages global carbon pricing alignment.
3. What are the deadlines for CBAM compliance?
The transitional reporting phase runs from 2023 to 2025, during which importers must report embedded emissions without financial obligations. Full financial obligations start on 1 January 2026.
4. What penalties apply if I fail to surrender EU ETS allowances?
Failure to surrender sufficient allowances results in a fine of €100 per tonne of excess CO2 emissions, plus the obligation to surrender the missing allowances in the following year.
5. How can I prepare for compliance with both CBAM and EU ETS?
Start by assessing whether your business activities fall under the scope of either regulation. Implement robust emissions monitoring and reporting systems, and familiarize yourself with the specific declaration and surrender obligations. Use dedicated compliance tools such as the CBAM compliance tool to streamline obligations.
Ready to Ensure Your Compliance?
Use our dedicated CBAM compliance tool to calculate your import carbon costs and manage certificate surrender obligations. This tool guides you step-by-step through reporting and purchasing CBAM certificates, helping you avoid fines up to €150 per tonne of undeclared CO2.
For EU-based installations, visit our EU ETS Explained page to understand your allowance obligations and reporting deadlines.