The CBAM carbon market link is direct and legally binding: under Article 21 of Regulation (EU) 2023/956, every CBAM certificate price equals the weekly average of EU ETS auction closing prices, placing carbon at the center of CBAM compliance costs. As of April 2026, the EU ETS trades at approximately €70/tCO₂, making that figure the baseline for every certificate purchase an EU importer must eventually make. Understanding the EU ETS, free allocation phase-out, and the broader Fit for 55 climate package is not background knowledge for CBAM compliance. It is the compliance itself.
This section covers 5 interconnected carbon topics: the EU ETS and how its price feeds into CBAM, a live certificate price tracker, carbon leakage and why CBAM exists, the free allocation phase-out schedule running from 2026 to 2034, and the Fit for 55 policy context. If you are new to CBAM, start with the EU CBAM overview on cbamguide.com before working through this section.
Caption: EU ETS auction prices directly set CBAM certificate prices under Article 21 of Regulation (EU) 2023/956.
How CBAM Certificate Prices Connect to the EU ETS
CBAM certificate prices are calculated as the weekly average of EU ETS auction closing prices, as defined in Article 21 of Regulation (EU) 2023/956. This is not an approximation or a policy target. It is an arithmetic formula hardcoded into the regulation.
The EU ETS (Emissions Trading System) is the EU's primary carbon pricing instrument, established under Directive 2003/87/EC. It operates as a cap-and-trade system covering installations in power generation, heavy industry, and intra-EU aviation. Operators buy or receive allowances; each allowance covers one tonne of CO₂ equivalent. The ETS price fluctuates daily based on supply, demand, energy market conditions, and policy signals from the EU Commission and member states.
CBAM's pricing formula connects non-EU exporters to that same price signal. A tonne of embedded CO₂ in imported steel or cement carries the same effective cost as a tonne of CO₂ emitted inside the EU. The Q1 2026 price range ran from €66 to €90/tCO₂, with a central figure of approximately €70/tCO₂ as of late March 2026. That range matters for financial planning because CBAM certificate obligations accumulate across the full calendar year, not at a single point in time.
Certificate sales begin February 1, 2027. Before that date, EU importers operating in the definitive phase (which started January 1, 2026) must track their embedded emissions and plan purchases. The first CBAM declaration covering calendar year 2026 is due September 30, 2027.
The 5 Carbon Topics Covered in This Section
The 5 topics in this section address the carbon pricing layer of CBAM from 5 distinct angles: the ETS mechanism, the live price, the leakage logic, the free allocation schedule, and the climate policy architecture. The table below maps each sub-page to its core purpose and primary search query.
| Sub-page | Topic | Core purpose | Primary query |
|---|---|---|---|
| EU ETS and CBAM certificate prices | EU ETS mechanics | Explains how ETS auction prices become CBAM certificate prices | cbam ets price |
| CBAM certificate price tracker | Live price data | Weekly updated ETS price with CBAM cost calculations per sector | cbam carbon price today |
| Carbon leakage and CBAM | Carbon leakage | Defines carbon leakage and why it is the policy justification for CBAM | cbam carbon leakage |
| ETS free allocation phase-out 2026–2034 | Free allocation | Full schedule from 97.5% remaining in 2026 to 0% in 2034 | cbam free allocation phase out |
| Fit for 55 and CBAM | Climate policy | Positions CBAM within the Fit for 55 legislative package | fit for 55 cbam |
Free Allocation and the Real Cost Trajectory of CBAM
CBAM's net cost in 2026 is a fraction of its headline figure, and understanding free allocation explains why. Under Article 10a(1a) of Directive 2003/87/EC as amended, EU producers in covered sectors still receive free allowances under the EU ETS. CBAM imports receive a corresponding adjustment: importers only pay certificates proportional to the share of production that is NOT covered by free allocation.
In 2026, 97.5% of free allocation remains intact. The CBAM factor is 2.5%, meaning an importer's certificate obligation equals 2.5% of what the full gross liability would be. At €70/tCO₂ and an emission factor of 2.0 tCO₂/tonne for blast furnace steel, the gross CBAM cost is €140/tonne. The net 2026 cost, after applying the 2.5% CBAM factor, falls to €3.50/tonne. That figure is not the long-run cost. It is the starting point of a scheduled increase that reaches 100% exposure on January 1, 2034, when free allocation in CBAM sectors is fully phased out.
The steepest escalation occurs between 2029 and 2030, when the CBAM factor jumps from 22.5% to 48.5%. Companies whose CBAM costs feel negligible in 2026 face a fundamentally different cost structure by 2030. The ETS free allocation phase-out 2026–2034 sub-page provides the complete year-by-year schedule and net cost projections by sector.
Carbon Leakage: The Policy Logic Behind CBAM
Carbon leakage occurs when EU climate policy raises production costs inside the EU, causing producers to relocate to jurisdictions with weaker carbon pricing, with no net reduction in global emissions. CBAM addresses carbon leakage by equalizing the carbon cost between EU-produced and imported goods at the EU border.
The three primary leakage channels that CBAM targets are production relocation (moving factories outside the EU), import substitution (replacing EU output with cheaper, higher-carbon imports), and investment diversion (directing new capital toward lower-regulation markets). CBAM eliminates the import substitution channel directly, and reduces the financial incentive driving the other two.
Sectors with the highest carbon leakage risk are steel, cement, aluminium, fertilizers, electricity, and hydrogen, which is precisely the list in Annex I of Regulation (EU) 2023/956. The carbon leakage and CBAM sub-page covers the economic evidence behind leakage risk assessment and how CBAM's design responds to each channel.
What Fit for 55 Means for CBAM Compliance
Fit for 55 is the EU legislative package targeting a 55% net reduction in greenhouse gas emissions by 2030 relative to 1990 levels. CBAM is one of 13 interconnected measures in that package, and its design cannot be understood in isolation from the others.
The 4 Fit for 55 measures most directly connected to CBAM compliance are the revised EU ETS (tighter cap, faster allowance reduction), the Social Climate Fund (financed partly by ETS and CBAM revenues), the ETS extension to maritime transport and buildings (expanding the pricing perimeter), and the CBAM regulation itself (the border enforcement layer). Each measure reinforces the others: a stricter ETS raises the ETS price, which raises the CBAM certificate price, which increases the cost advantage of investing in cleaner production methods.
The ETS reform process is ongoing, with member states debating Market Stability Reserve adjustments in Q1 2026. ETS price movements in response to those debates pass directly into CBAM certificate costs. The Fit for 55 and CBAM sub-page maps the full policy architecture and tracks legislative developments that affect CBAM pricing.
Caption: CBAM operates as the border enforcement layer of the Fit for 55 package, translating EU ETS carbon pricing to imported goods.
Tracking the CBAM Carbon Price in Practice
The CBAM certificate price tracker updates weekly, sourcing from EU ETS auction data published by the European Energy Exchange (EEX). For 2026, the price formula uses quarterly averages of ETS auction clearing prices under Article 22(1a), inserted by Regulation (EU) 2025/2083. From 2027 onward, the formula switches to weekly averages of ETS auction closing prices under Article 22(1).
The practical implication of this shift: importers planning certificate purchases from February 1, 2027 face a week-to-week price that changes continuously. The quarterly averaging method in 2026 smooths volatility, but 2027 introduces more granular price exposure. Cost modeling for multi-year sourcing decisions requires building in price range scenarios, not single-point estimates. The CBAM certificate price tracker provides both the current price and historical range data to support that modeling.
Additional Resources on CBAM Carbon Compliance
The topics in this section sit at the economic layer of CBAM: the pricing signals, market mechanisms, and policy architecture that determine what compliance costs. The operational layer (how to purchase, hold, and surrender certificates) is covered in the compliance section.
How does CBAM fit into the broader CBAM compliance process?
Carbon pricing knowledge connects to compliance action through the certificate purchase and surrender process. Once the CBAM carbon price is known and an importer's embedded emissions are verified, the financial obligation becomes a specific certificate quantity. The CBAM certificate purchase and surrender page covers the mechanics of buying certificates from February 1, 2027, holding at least 50% of cumulative embedded emissions each quarter, and surrendering by September 30 each year.
Is the CBAM carbon price the same for all sectors?
The CBAM certificate price is uniform across all 6 covered sectors: iron and steel, cement, aluminium, fertilizers, electricity, and hydrogen. All certificates are priced at the same EU ETS weekly average regardless of which sector generated the embedded emissions. What differs by sector is the emission factor (tonnes of CO₂ per tonne of product), which determines how many certificates an importer must purchase per tonne of goods imported.
Does the EU ETS price affect CBAM compliance in 2026 before certificates go on sale?
The EU ETS price in 2026 does not trigger immediate certificate purchase obligations because certificate sales do not begin until February 1, 2027. However, the 2026 ETS price forms the basis for the quarterly average used to calculate certificate prices when sales open in 2027. Importers tracking the ETS price in 2026 are building the cost baseline that will determine their first real financial exposure.