How CBAM certificates are priced: the ETS link and cost planning

A CBAM certificate is not an emission allowance; it is an instrument that covers, for the importer, the carbon cost that would have been paid in the EU for the good’s embedded emissions. It is not traded, has no secondary market and cannot be stockpiled speculatively. Its price is set by formula, not by a market.

The pricing formula

The certificate price is indexed to the average closing price of EU ETS allowances at weekly auctions. All CBAM certificates sold during a week are sold at that week’s average. The structure delivers two things: the same carbon price for producers inside and outside the EU, and partial insulation from daily volatility through a weekly price window.

The ETS price itself is volatile. In recent years it has moved in a wide band between roughly 55 and 100 euros per tonne; energy prices, industrial output and policy expectations can move it quickly. CBAM cost planning should therefore run on a scenario band rather than a single price point.

Deducting a carbon price paid at origin

CBAM avoids double pricing: if an effective carbon price was paid for the same emissions in the country of production, that amount is deducted from the certificates to be surrendered. The deduction is not automatic, though — the payment must be documented, attributable to the emissions, and not refunded or compensated back.

For Turkey this clause is strategic. Once a national emissions trading system is operational, the carbon cost a Turkish producer pays stays in the country rather than flowing to the EU. This is precisely where carbon pricing stops being a cost question and becomes a question of who collects the revenue.

Cash flow and purchasing discipline

• Certificates are bought during the year; the declaration is annual but payment is spread
• The importer must hold enough certificates in their account at the time of declaration
• A share of over-purchased certificates can be repurchased, but not without limit
• Holdings are capped, which blocks speculative accumulation
• Purchase timing produces a real cost difference as the ETS price moves

For the exporter the consequence is commercial: your importer’s carbon cost is now a variable line per shipment, and that line depends on your emissions performance. A product with lower embedded emissions is cheaper for the buyer even at the same invoice price. Emissions data becomes part of the price list.