CBAM brings carbon accounting into the import contract
Supplier emissions now affect the cost of importing covered goods. Importers need reliable production data and a cash plan for certificates purchased after the goods arrive.
A purchase order for imported steel now carries a question that used to sit further from the transaction: what emissions were embedded in its production? On 1 January 2026, the EU Carbon Border Adjustment Mechanism entered its definitive regime. Its scope covers selected goods in cement, iron and steel, aluminium, fertilisers, electricity and hydrogen. For affected businesses, carbon information became part of managing an import obligation with a financial consequence.
The first year has an unusual cash timetable. Imports made in 2026 create the emissions record, but certificates are purchased from February 2027. The first declaration and corresponding surrender are due by 30 September 2027. That gap gives companies time to prepare a payment; it does not remove the need to collect accurate information when goods move. For industrial startups and their investors, understanding those separate events is essential to forecasting both margins and working capital.
An import year and a payment year
CBAM links the price of certificates to the EU Emissions Trading System. The Commission calculates quarterly prices for 2026 and moves to weekly prices from 2027. Each quarterly price applies to certificates corresponding to emissions in goods imported during that quarter. The Commission published prices of €75.36 per certificate for the first quarter and €75.28 for the second. These prices apply to carbon emissions rather than the weight of imported material.
- 1 January 2026
Definitive regime begins
Covered imports enter the first year of the definitive regime.
- During 2026
Quarterly carbon prices
Each quarter's price applies to certificates for emissions in goods imported during that quarter.
- February 2027
Certificate purchases begin
Certificates become available on the common central platform.
- 30 September 2027
First declaration and surrender
The first annual declaration and certificate surrender cover 2026 imports.
Imports, certificate purchases and the annual declaration fall at different stages of the first compliance cycle, under Commission guidance.
A founder therefore cannot estimate an import bill simply by multiplying shipment weight by an allowance price. The calculation depends on embedded emissions and the applicable adjustments. The regime allows a deduction where an importer proves that a carbon price has already been paid during production. The Commission also provides rules for the adjustment associated with free allocation under the EU ETS. Commercial forecasting needs those inputs alongside the timing of the import and eventual payment.
Scope comes before software procurement
The exemption covers importers whose combined annual imports of covered cement, iron and steel, aluminium and fertiliser goods do not exceed 50 tonnes in net mass. The threshold applies per importer across those goods; electricity and hydrogen are excluded. Exceeding it brings all covered imports for that calendar year into the obligation and requires authorised CBAM declarant status. A business should establish which goods it imports, whether an exemption applies and who acts as the declarant before purchasing reporting software.
For a carbon software startup, that distinction affects the addressable market. Counting every small importer as an equally likely paying customer would exaggerate demand. Larger importers may have more complex supplier relationships and stronger reasons to buy, but they also expect integration with customs and purchasing records. A useful product has to fit the person accountable for the declaration and the staff who can obtain production information from suppliers.
The producer holds the difficult evidence
The Commission permits importers to use default values or actual emissions. Where an importer chooses actual values, the producer outside the EU must provide verified emissions data. That creates a dependency across organisations: the importer controls its customs declaration, while the installation operator controls important evidence about how the goods were made. A spreadsheet assembled after the purchasing team changes supplier may be too weak to explain the underlying production history.
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| Comparison | Commission default values | Verified actual values |
|---|---|---|
| Input | Use the applicable values established by the Commission. | Use emissions data supplied by the producer outside the EU. |
| Evidence dependency | Match the correct published value to the goods and applicable rules. | Obtain verified production emissions and preserve their connection to the goods. |
| Software requirement | Track the legal version of the default-value table. | Manage supplier data, verification evidence and corrections. |
Reporting routes in Commission guidance, with their implications for supplier data and record keeping.
Contracts can make this dependency explicit. Buyers need agreement on the information to be delivered, when it will arrive and how corrections will be handled. Producers need to understand which calculation and verification requirements apply to the information they provide. Software can help preserve those exchanges, but a document uploaded successfully is not evidence that its emissions boundary or production period matches the imported goods.
A calculation engine needs a memory
A subsequent correcting act, published on 31 July, changed a limited number of default values; corrected spreadsheets followed. The Commission also published guidance for installation operators and for verification and accreditation. A calculation engine must distinguish the rule applied originally from a later correction so that customers can account for changes to their estimates.
A durable record would retain the source table, its version, the supplier evidence and the reason for any recalculation. That is valuable to finance teams investigating a changed estimate and to staff preparing the declaration. Investors can examine this capability with a real customer example: change a supplier input or a default value and see whether the product explains the resulting movement in expected liability.
Cleaner production still needs a buyer
CBAM gives industrial decarbonisation projects another route through which lower emissions can affect commercial value. A producer with a cleaner process may be able to demonstrate lower embedded emissions through verified actual data. Whether that advantage supports a higher selling price depends on contracts, competing suppliers, the applicable calculation and the cost of obtaining evidence. The regulation alone does not establish a premium for a new material or process.
For venture analysis, the strongest case connects engineering performance to an identifiable purchasing decision. How much of the emissions difference survives the regulatory calculation? Who receives the economic benefit? What does verification cost at the proposed production scale? Those questions connect a climate technology's measured performance to customer economics, while the deferred certificate payment reminds both sides to fund the eventual obligation.
Investment implications
- The first import cycle creates a liability before certificates become available for purchase.
- Verified actual emissions and Commission default values create different information requirements for producers and importers.
- Carbon software has to preserve the connection between a shipment, its production evidence and the calculation rules used.
Sources
- CBAM definitive regime (opens in a new tab)
European Commission
- CBAM communication and news (opens in a new tab)
European Commission
- Price of CBAM certificates (opens in a new tab)
European Commission
- CBAM legislation and guidance (opens in a new tab)
European Commission
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