Companies importing CBAM-covered products into the European Union during 2026 will need to finance related carbon liabilities in the following year. The timing difference between the import period and the certificate payment schedule creates a working-capital requirement. Businesses must account for this before their final emissions obligations are established.
CBAM certificates are available for purchase from February 2027. The first annual declaration and corresponding certificate surrender are due by 30 September 2027. Although the emissions relate to goods imported throughout 2026, the cash requirement arises later, including after products may have been sold or processed.
Working-capital effects across import and compliance timelines
The funding timing is particularly relevant for firms handling large volumes on narrow margins. A metals trader may buy thousands of tonnes under short payment terms and resell material before its CBAM obligation is finalised. A cement importer may receive payment from a distributor while awaiting verified emissions information from the producing plant.
In both cases, the carbon expense remains linked to earlier imports even though certificate payments fall into a later financial period. Importers therefore need to consider future liabilities when pricing transactions and planning liquidity. This approach differs from treating the cost as arising only at the annual compliance deadline.
How CBAM certificate requirements are calculated
The certificate requirement depends on more than applying an EUA price to imported tonnage. The final amount reflects embedded emissions, adjustments tied to EU free allocation, and any eligible deductions for carbon prices paid abroad. These variables can vary across products and installations, including when an importer sources from multiple suppliers.
A transaction-level ledger is used to record each consignment, import quarter, relevant benchmark, calculation methodology, and verification status. This supports updating provisional carbon accruals as supplier evidence becomes available and as the expected certificate requirement changes.
Treasury scenario modelling for potential funding gaps
Treasury teams can estimate exposure using three emissions scenarios: verified actual emissions near the applicable benchmark, a higher-emissions outcome, and a default-value scenario where sufficient evidence is unavailable. Each scenario can be assessed against a range of ETS-linked prices and the applicable CBAM calculation rules.
The resulting estimates indicate potential funding requirements and identify which missing supplier records drive uncertainty most. A single carbon-cost percentage applied across an entire corporate group is unlikely to reflect differences between products, installations, and suppliers. Funding models therefore need to capture those variations rather than rely on one general estimate.
Cash forecasting and liability updates before September 2027
Monthly cash forecasts should incorporate expected certificate requirements well before the September 2027 deadline. A rolling model can organise shipments by import quarter, supplier, estimated embedded emissions, and the quality of available verification evidence. It can produce low and high funding estimates based on those inputs.
Management can compare projected requirements with revolving credit availability and possible customer prepayments. The model must also accommodate changes in expected liability, including shifts from pending plant verification that alter emissions volume. It must also reflect eligible foreign carbon-price deductions that reduce the net amount due.
Trade finance needs shipment-level carbon information
The same records can support lenders assessing liquidity for importing businesses. This is relevant for fast-turnover traders where gross profit may be modest relative to metal value and volume. Banks providing trade finance will need to separate customs value of goods from the separate cash outlay associated with CBAM certificates.
Revolving facilities may require additional headroom to cover the timing gap between imports and certificate purchases. Borrower covenants may also need to reflect differences between when carbon expenses arise, when inventory is sold, and when certificates must be purchased. Importers could respond by seeking carbon-cost deposits from customers or renegotiating payment terms with exporters that control access to production and emissions data.
Operational compliance, verification delays, and customs controls
Funding arrangements need operational compliance procedures to support final exposure calculations. Buyers require authorised-declarant status where applicable, accurate customs classifications, access to the CBAM registry, and an established process for collecting installation-level emissions information.
Independent verification of actual emissions can take time and may include site visits and documentary reviews. If a supplier does not provide required evidence within the relevant timeframe, importers may need to plan around default values or other permitted fallback arrangements instead of assuming lower reported emissions will be accepted.
The quality of emissions records affects how reliable financial forecasts are likely to be. Companies need to track verification progress alongside shipment and payment information so unresolved data gaps are reflected in funding estimates.
First annual declaration covering 2026 imports
The first annual declaration and surrender deadline on 30 September 2027 covers carbon exposure associated with imports made during 2026. By then, importers will need to reconcile goods already traded with verified emissions information and certificates required under the mechanism.