Why CBAM belongs in the tax-control framework
The EU Carbon Border Adjustment Mechanism creates a compliance interface between customs, environmental regulation, procurement and financial reporting. OECD analysis of implementation identifies a significant 2026 operational rule: from 1 January 2026, only authorised CBAM declarants may import covered CBAM goods above the 50-tonne de minimis threshold into the EU. The practical effect is that businesses must establish whether their import flows fall within scope and whether the responsible importer has the required authorisation.
Build an import-by-product inventory
The first step is to map goods using the applicable customs classifications and CBAM product categories. The review should cover:
- direct imports by the EU entity;
- imports made through customs representatives;
- purchases where a supplier or group company is the importer of record;
- annual tonnage by product category; and
- the origin and emissions information needed for CBAM reporting.
Do not rely only on supplier descriptions. Customs codes, contracts and logistics records should be reconciled so that the business knows which legal entity bears the compliance responsibility.
Example: an industrial group
Assume a Swedish manufacturing group imports covered steel products into Germany and Austria. The procurement team may negotiate the purchase, while a logistics provider handles customs clearance. The group should confirm which entity is the importer, whether the 50-tonne threshold is exceeded, whether an authorised declarant is in place and how emissions data will be collected from suppliers. A contract assigning data obligations to a supplier does not necessarily transfer the group’s regulatory responsibility.
Controls to implement
Use a quarterly CBAM control cycle with four checkpoints:
- Reconcile customs entries to purchase and inventory records.
- Compare cumulative tonnage with the applicable threshold.
- Verify authorisation and representation arrangements.
- Escalate missing emissions data or inconsistent product classifications.
Broader planning insight
CBAM exposure can affect supplier selection, landed-cost calculations and contract pricing. Businesses should include emissions-data requirements in procurement contracts and preserve evidence supporting the classification of each import. Because national authorities may apply their own risk-assessment methods, a defensible audit trail is essential. Integrating CBAM data with customs and tax systems will reduce the chance that an import is legally completed but operationally omitted from the company’s compliance process.