The 2026 Import Quarter Sets the Price for 2027 CBAM Certificates
Primary lensCustoms enforcement
Sub-topicClassification and valuation
Evidence base11 records used
Use caseCustoms exposure review
The 2026 record comes before the 2027 payment
CBAM's definitive period has applied since January 1, 2026 to covered imports of cement, iron and steel, aluminium, fertilisers, electricity, and hydrogen. Certificate sales begin on February 1, 2027, and the first declaration and surrender are due on September 30, 2027. Those dates do not defer the 2026 work. Each 2026 import already determines which quarterly certificate price applies and creates the quantity and emissions record that the authorised CBAM declarant must reconcile.
The legal obligation sits with the EU importer or an indirect customs representative, not automatically with the U.S. producer. The producer may nevertheless control the installation, precursor, production, and emissions data needed for actual values. The immediate task is therefore to assign data, verification, correction, and retention duties between supplier and declarant.
An importer whose aggregate annual net mass does not exceed 50 tonnes across the mass-based CBAM goods may claim the exemption in the relevant customs declaration. Electricity and hydrogen are outside that threshold. If the threshold is exceeded, all covered imports for the year enter the file.
Detailed Article 9 conversion and evidence rules remained draft on August 12, 2026, and the proposed 2028 downstream expansion was not current law. For each shipment, check the eight-digit CN code, cumulative importer volume, customs date and quarter, installation, production and precursor inputs, emissions method, verification report, and evidence of any carbon price paid.
Article 9 provides two reduction routes. Where actual emissions are used, the declarant may claim a carbon price effectively paid on the declared embedded emissions, subject to payment evidence, adjustment for rebates or compensation, and independent certification. Where default emissions are used, a reduction may be claimed only by reference to a yearly default carbon price under Article 9(4).
Each import quarter has its own price bucket
No certificates change hands in 2026, but the year is not cost-free. The Commission is publishing four certificate prices for 2026, and each price applies to the emissions in goods imported during that quarter. The first-quarter price is EUR 75.36 per certificate. The second-quarter price is EUR 75.28. The third-quarter price is scheduled for publication on October 5, 2026, and the fourth-quarter price on January 4, 2027.
That architecture separates three events that a landed-cost model can easily collapse. The customs entry establishes when the goods entered the Union. The production and emissions record establishes the carbon quantity attributable to those goods. The later certificate purchase and surrender settles the resulting obligation. A company that waits for a 2027 certificate invoice will have missed the first two controls.
The 2026 quarter must therefore stay attached to the shipment record. A December shipment cannot be costed with the second-quarter price simply because the parties negotiated the contract in June. Nor can a buyer select the cheapest quarterly price when purchasing certificates in 2027. The applicable 2026 reference follows the quarter of importation.
Free allocation under the EU Emissions Trading System and any permitted carbon-price deduction can change the final number of certificates to surrender. They do not erase the need to build the gross quantity and emissions record first. The cleaner operating model has a gross emissions field, a separate free-allocation adjustment, a separate carbon-price-paid claim, and a reconciled certificate count. Putting only a projected euro amount in the purchase order makes it difficult to explain later why the final figure moved.
The legal owner and the data owner are often different companies
CBAM assigns the declaration to an authorised EU declarant. It does not place the annual filing directly on every foreign factory. Commercial leverage, however, runs in the opposite direction. The EU customer can ask for data, but it cannot recreate a U.S. plant's production route, direct emissions, relevant indirect emissions, or precursor inputs from a customs entry.
The Commission's registry has a module for operators of installations outside the EU. A registered operator can upload installation and emissions information and share it with declarants, rather than sending the same file separately to each customer. The system also offers a way to limit circulation of commercially sensitive plant information. Registration is voluntary for the foreign operator, but the data choice made in the commercial relationship is not trivial.
If the parties choose actual values, the producer needs a calculation that follows the definitive-period methodology and a verification report from an accredited CBAM verifier. The Commission says verification operates at installation level. The verifier reviews the emissions calculation and reports on the installation, while the declarant uses that report in its annual return. Accreditation capacity was still developing in mid-2026, with the first accredited verifiers expected around September. A contract that merely says the supplier will provide "CBAM data" does not reserve a verifier, allocate site-access costs, or set a correction deadline.
If the seller has agreed to deliver duty paid through an EU entity that acts as importer, the allocation changes. So does the answer if an indirect customs representative accepts declarant status. The invoice term, importer-of-record arrangement, and CBAM authorisation should be checked together. A slogan about who "pays the tariff" is not a substitute for identifying the legally responsible declarant and the party that controls each source field.
Default values do not prove that a U.S. plant is clean
For goods other than electricity, the definitive rules permit actual emissions or the applicable default values. Actual emissions must be verified when used in the declaration. Defaults can keep a transaction from depending on plant-specific verification, but they do different evidentiary work. They are prescribed values, not a finding about the efficiency of the factory that supplied the shipment.
That distinction matters for U.S. exporters that expect their domestic production mix to compare well with higher-emitting competitors. A national reputation for cleaner production does not enter the CBAM calculation by itself. The benefit of a lower-emitting installation must be translated into the permitted calculation fields and, when actual values are claimed, verified under the EU rules.
The default-value regulation uses product and country data with conservative adjustments, and provides fallback logic where reliable country data are unavailable. A supplier should therefore compare two numbers before promising a customer that actual data will reduce the charge: the applicable default value and a defensible estimate of verified actual emissions. It should then add the cost of calculation, verifier work, plant access, corrections, and ongoing record maintenance. For a small shipment, the data pathway can cost more to build than it saves in certificates.
The choice also affects the carbon-price deduction. Under the current Article 9 structure, a claim tied to actual emissions requires proof that a carbon price was effectively paid on the declared embedded emissions, adjusted for rebates or compensation and supported by independent certification. With default emissions, the reduction may be claimed only by reference to a yearly default carbon price under Article 9(4). From 2027, the Commission may determine and publish such prices for third countries with carbon-pricing rules, subject to the final detailed implementing rules. The emissions method and the credit method should not be chosen in separate meetings.
Section 232 does not belong in the carbon-price field
A Section 232 duty cannot reduce the CBAM certificate count. CBAM recognizes an amount paid under a greenhouse-gas emissions reduction scheme and calculated on emissions released during production. Section 232 is a national-security customs measure based on product coverage and customs rules, not plant emissions.
Keep the records separate. A Section 232 entry file may contain the HTS line, Chapter 99 treatment, value, origin, and melt-and-pour or smelt-and-cast information. The CBAM file needs the EU CN code, import quarter, producing installation, embedded emissions, verification status, and qualifying carbon-price evidence. One plant record may support both files, but it does not produce the same legal result. The existing Trade Act Section 301 Analysis, One EU Sustainability Docket, Four Evidence Files addresses the separate U.S. trade-policy record for CBAM.
Link three dates across the supplier and declarant files
Each shipment must remain connected to its production reporting period, its customs import date and quarter, and the September 30, 2027 reconciliation deadline. The matrix below assigns the source fields and shows how the supplier file and declarant file connect. It is a record-control tool, not a substitute for the calculation methodology.
Control
Record fixed in 2026
Owner to identify
2027 use
Scope
Eight-digit CN code, goods description, sector, and EU importer's cumulative covered net mass
EU importer with supplier classification support
Determines whether the shipment enters the annual CBAM declaration
Timing
Customs declaration date and calendar quarter of import
EU importer or customs representative
Selects the applicable 2026 quarterly certificate price
Quantity
Tonnes of each covered type of goods, or megawatt-hours for electricity
EU importer, reconciled to commercial documents
Populates the annual quantity by type of goods
Installation
Producing installation, production route, reporting period, and relevant precursors
Non-EU producer
Connects the goods to the emissions calculation
Emissions
Actual verified emissions or the applicable default value, stated by method and version
Producer for actual data; declarant for the filed method
Establishes the emissions base for the certificate calculation
Verification
Accredited verifier, report, findings, and correction history when actual values are used
Authorised CBAM declarant to ensure verification; non-EU operator and accredited verifier to produce and transmit the report
The result should be two linked files, not one all-purpose certificate pack. The supplier file holds the installation, production, precursor, emissions, verification, and carbon-price records. The declarant file holds authorisation, customs entries, CN codes, annual threshold aggregation, quantities, quarterly price mapping, and certificate reconciliation. Shared identifiers should connect them. Responsibility should not be blurred by storing every field in a generic trade-compliance folder.
A workable linkage key can be simple: supplier, installation, product or CN mapping, production period, invoice, customs entry, and import quarter. The key should survive a credit note, returned shipment, corrected emissions report, or change in the declarant. If a correction cannot be traced from the plant record to the affected imports, the 2027 reconciliation becomes a manual reconstruction.
Put the data choice into the sales contract
The commercial document should say more than "buyer is responsible for CBAM." Legal responsibility and data production are different obligations. At minimum, the parties need to decide whether the price assumes default or actual emissions, who selects and pays the verifier, when installation access can occur, how confidential inputs will be shared, and who bears a certificate increase caused by late, incomplete, or corrected data.
The timing clause should work backward from the filing date rather than repeat it. September 30, 2027 is the declarant's deadline, not a sensible supplier delivery date. The contract needs an earlier date for the initial emissions file, a verifier window, a correction period, and a final reconciliation. It should also state which party tracks the 50-tonne threshold, because the supplier may not know the EU importer's aggregate imports from other factories.
Price-adjustment language should name its moving parts. The quarter of import controls the 2026 certificate price. Actual-versus-default methodology changes the emissions input. Free allocation changes the phase-in adjustment. A qualifying carbon price can change the certificate count. Currency and commercial pass-through terms can change who bears the euro cost. Calling all of these "CBAM tax" leaves no rule for resolving a difference.
Confidentiality needs a field-level answer. The Commission registry can transmit installation information to declarants, but a producer may still need to protect process data and supplier relationships. The contract should identify what moves through the registry, what the verifier can inspect, what the buyer receives, and what can be retained for audit. A promise to provide every calculation input directly to the customer may disclose more than the regulation requires.
Keep proposed 2028 products out of the 2026 file
The proposed downstream expansion is not current law. Companies with multi-year supply contracts can map the proposed CN codes, but enactment of the final regulation should trigger a separate scope review. A product's appearance in a Commission proposal is not a basis for booking a present CBAM liability.
Lock the 2026 record before certificates go on sale
Start with the EU importer's 2026 entry data. Group covered lines by eight-digit CN code, supplier, installation, and quarter. Test the annual 50-tonne threshold at importer level, keeping electricity and hydrogen outside that mass-based analysis. Then compare the applicable default value with a realistic actual-emissions estimate for each material supplier. The decision to pursue actual values should include verification cost and timing, not only the expected certificate reduction.
For actual values, establish the installation reporting boundary, calculation owner, precursor data path, verifier, correction process, and registry-sharing method now. For any carbon-price claim, preserve the legal basis, proof of payment, emissions covered, rebates, and independent certification while waiting for the final detailed filing rules. Do not place Section 232 duties or general U.S. regulatory costs in that credit field.
Finally, build the 2027 reconciliation from the same record. The declarant should be able to move from a certificate count back to the quarter price, customs entries, calculation method, installation data, verification report, free-allocation adjustment, and carbon-price evidence. If the trail begins with the 2027 purchase, it begins too late. The first annual CBAM certificate obligation is being set by imports already entering the European Union in 2026.
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