CBAM File Calculate free

EU CBAM · definitive period 2026 · iron, steel & aluminium

Your EU buyer asked for CBAM emissions data.
Send them the official file in about 10 minutes.

Enter your production and fuel data. Get the EU Communication Template filled in, plus a report that shows your buyer how much they save by using your real numbers instead of the EU's penalty default values.

1 · Your installation

The site where the goods are produced. CBAM data is always per installation, not per company.

How it works

  1. Enter one year of data. Tonnes produced, fuels burned, and the steel or aluminium you bought in. About 10 minutes — every field has a help button quoting the Commission's guidance.
  2. See how you compare with the EU default. The free preview shows the range of the difference and of your buyer's saving. Your exact value per tonne comes with your files.
  3. Download and send. The official Communication Template filled in, and a one-page report your buyer can forward to their finance team.

What you get — the Commission's own example

The screw factory from the Commission's guidance, calculated by this tool. Load it with one click and every figure below appears in step 4 — the example is public, so nothing is hidden.

ProductYour value
tCO₂e/t		 EU default 2026
incl. +10%		Difference
Carbon steel screws and nuts2.0072.838−29%
High alloy steel screws and nuts1.9522.838−31%

Communication Template (.xlsx)

The Commission's official workbook (v2.1) with your figures in the input sheets — A_InstData, B_EmInst, D_Processes and E_PurchPrec. Its formulas are left untouched, so it recalculates in Excel.

Buyer report (PDF)

One page for your EU importer: your value, the default it replaces, and the estimated saving on their CBAM certificates — with the sources and the carbon price date printed next to every figure.

Who it is for

Built for

  • Producers and fabricators of iron, steel and aluminium outside the EU (CN chapters 72, 73 and 76)
  • Plants whose EU customer has asked for CBAM data
  • Small and mid-sized sites preparing a first file without a consultant

Not built for

  • EU importers filing their CBAM declaration — nothing is submitted to the CBAM Registry
  • Cement, fertilisers, hydrogen or electricity
  • Verified figures — you get a verification-ready draft; verification is done by an accredited verifier

Common questions

Is a non-EU producer legally required to report CBAM data?

No — the legal obligation sits with the EU importer, but without your data the importer must use a default value with a penalty mark-up, so most customers will insist on receiving it.

In practice the request arrives as a commercial condition: send actual emissions data or share the extra cost of the default value.

Source: Regulation (EU) 2023/956, Articles 4 and 6

How is the CBAM emissions value per tonne calculated?

It is your installation's direct emissions attributed to the product, plus the emissions embedded in the CBAM materials you bought and consumed, divided by the tonnes of product you made.

The result is tonnes of CO₂e per tonne of goods for one calendar year. Scrap and returned product are excluded from output; offcuts and losses stay on the input side.

Source: Regulation (EU) 2023/956, Annex IV

Do electricity emissions count for steel and aluminium under CBAM?

No — in the definitive period only direct emissions count for iron, steel and aluminium; electricity is reported in the template but does not enter the product's value, with sintered ore as the single exception.

Electric arc furnace producers still count electrodes, natural gas and the carbon in scrap and alloys.

Source: Regulation (EU) 2023/956, Annex II; Commission Guidance No. 5d/5e, pp. 8–9

Does my CBAM data need to be verified?

Yes — from 2026 actual emission values can only be used by the importer once they have been verified by an accredited verifier; until then, describe your figures as verification-ready, not verified.

A first calculated file is still useful: it shows your customer the likely saving and is the input the verifier checks.

Source: Regulation (EU) 2023/956, Article 8; Commission Guidance No. 3, p. 50

Does CBAM File send my production data anywhere?

No — every calculation and the filled template are produced inside your browser; your production, fuel and purchase figures are never uploaded to our servers.

The only thing we ever store is an email address, and only if you ask for regulatory update alerts.

Source: CBAM File Privacy Policy

All questions from non-EU suppliers →

Guides and data

To print the report for your buyer, use the Report for your buyer button on cbamfile.com after unlocking downloads.