CBAM data inventory: a free 12-month workbook for your plant
A verified emissions figure is only as good as the monthly records behind it. List your goods, fuels and bought-in steel or aluminium, and download an Excel workbook with a sheet for each, formulas included, and the EU default value for each good to compare with. Nothing you type leaves this browser.
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Why 12 months of records
Your EU buyer can declare your real emissions instead of the default value only after an accredited verifier has checked them. The verifier checks each figure against invoices, meter readings and production logs, so missing months cost time and money. Collecting the records month by month from the start is the cheapest way to get there.
How to fill it in
- Blue cells are for you. Leave a cell empty rather than guess.
- Enter each fuel in the unit on the invoice, and its net calorific value per that same unit.
- Take precursor figures from your supplier's Communication Template. Without a verification report covering the period, the EU default value applies instead.
- The per-tonne figure on the Summary sheet is a rough check for a plant that makes one good. For several goods, or for the figure you send your buyer, use the emissions calculator.
Next: work out your figure with the emissions calculator, describe how you measure in the monitoring plan builder, and gather the evidence with the verification checklist.
More free tools
- Cost calculatorWhat your EU buyer pays for one product, year by year to 2034.
- Is my product covered?Type an HS or CN code: is it covered by CBAM?
- Products covered from 2028Will your product be added from 2028? Three EU proposals compared.
- Your emissions per tonneYour plant's own emissions per tonne, against the EU default.
- Compare metal sourcesWhich country's steel or aluminium has the lowest default value.
- CBAM deadlinesEvery CBAM date to 2034, as a calendar file.
- Check your communication templateCheck your filled-in Commission template before you send it.
- CBAM monitoring plan templateA Word draft of your plant's monitoring plan, with all 22 elements.
- Ask your supplier for emissions dataA ready letter asking your mill for emissions data.
- Emissions summary for your EU buyerA one-page emissions summary PDF for your EU customer.
- Verification checklistThe records a verifier will ask for, as a printable list.
Data layout from Commission Guidance Document 3 on the CBAM definitive period (14 August 2026), equations 5, 6 and 11 and section 4.2.2.3; default values from Implementing Regulation (EU) 2025/2621 as corrected. A template to fill in, not a verified calculation: disclaimer.