Estimate the potential carbon-related cost of aluminium imported into the EU under the Carbon Border Adjustment Mechanism (CBAM). Choose the aluminium product, the country of origin, the quantity and the year of import, then adjust the carbon price to see the estimated embedded emissions and carbon cost.

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How the CBAM carbon cost estimate works

  1. Default emissions. The tool looks up the default emissions value (tCO₂e per tonne) for the product and country of origin, from Commission Implementing Regulation (EU) 2025/2621 as corrected by (EU) 2026/1740.
  2. Mark-up. Default values include a mark-up that depends on the import year.
  3. Free allocation offset. The benchmark for the product multiplied by the CBAM factor for the import year is deducted from the emissions. The CBAM factor falls as free allocation is phased out.
  4. Cost. The remaining emissions are the certificates to cover, multiplied by the carbon price you enter.

Aluminium products covered

The calculator covers the following CN codes for 67 countries and territories, plus a default value for all other origins.

CN codeProduct
7601Unwrought aluminium
7603Aluminium powders and flakes
76041010Bars and rods (not alloyed)
76041090Profiles (not alloyed)
76042100Hollow profiles (alloyed)
76042910Bars and rods (alloyed)
76042990Profiles (alloyed)
7605Aluminium wire

Frequently asked questions

What is CBAM?

The EU Carbon Border Adjustment Mechanism (CBAM) puts a carbon price on certain imported goods, including aluminium, so that they carry a carbon cost comparable to EU-made products under the EU Emissions Trading System. In the definitive period, which starts in 2026, importers must buy and surrender CBAM certificates for the embedded emissions of the goods they import.

What are default emission values?

When an importer cannot demonstrate verified actual emissions, the European Commission publishes default values for each product and country of origin. This calculator uses those default values, including the mark-up that applies to them in each import year.

Why does the estimated cost increase each year?

Free allocation for EU producers is being phased out, and the CBAM obligation grows in step with it. The mark-up on default values also increases in the first years. The chart shows the same import evaluated for each year from 2026 to 2034 so you can see the effect.

Can I use verified emissions data from my supplier?

The current version of the calculator uses default values only. If you have verified supplier data and would like to compare it with the default values, please contact OSRICH.

How accurate is the estimate?

The result is an indicative estimate based on reference default values and the assumptions shown next to it, including an editable carbon price. It is not legal, tax or financial advice, and your actual obligation depends on your CBAM declaration, the emissions data you can verify and the certificate price at the time.