What is Carbon Border Adjustment Mechanism (CBAM)?

The Carbon Border Adjustment Mechanism (CBAM) is the European Union's tool to put a carbon price on imports of certain carbon-intensive goods, mirroring the carbon cost borne by EU producers under the EU Emissions Trading System (EU ETS). It was created by EU Regulation 2023/956, adopted in May 2023. Its core aim is to stop carbon leakage — the shifting of production to countries with weaker climate rules — and to level the playing field as the EU phases out the free emission allowances it currently gives its own industries.

How CBAM works

Importers must report the greenhouse-gas emissions "embedded" in their goods (direct and indirect) and surrender CBAM certificates matching those emissions. The certificate price tracks the EU ETS allowance price; for 2026 it is based on the quarterly average of EU allowance auction prices, moving to a weekly average from 2027. Any carbon price already paid abroad can be deducted, avoiding double charging (Article 9 of Regulation 2023/956).

PhasePeriodObligation
Transitional1 Oct 2023 – 31 Dec 2025Quarterly reporting of embedded emissions only; no payment
DefinitiveFrom 1 Jan 2026Annual reporting + buy and surrender certificates

A single mass-based de minimis threshold of 50 tonnes per importer per calendar year (introduced via the 2025 "Omnibus" simplification) exempts small importers. The first certificate sales begin on 1 February 2027 for 2026 emissions.

Covered sectors and link to EU ETS

CBAM currently applies to six sectors: cement, iron and steel, aluminium, fertilisers, electricity and hydrogen. As EU ETS free allowances are withdrawn from 2026 to 2034 (reaching 100% withdrawal by 2034), CBAM steps in to charge importers an equivalent carbon cost. The EU has proposed extending scope to downstream steel- and aluminium-intensive goods from 2028.

Significance and impact on India

CBAM has major implications for India, whose steel, iron and aluminium are among its top EU-bound exports. The Global Trade Research Initiative (GTRI) estimated that Indian exporters may need to cut prices by 15–22% to absorb the levy (as of Jan 2026). Finance Minister Nirmala Sitharaman has described CBAM as "unilateral" and a trade barrier, and India — alongside China, Russia and South Africa — has questioned its WTO-compatibility and called it protectionist that violates the principle of Common But Differentiated Responsibilities (CBDR).

India's strategic counter is its own Carbon Credit Trading Scheme (CCTS), notified in 2023 under the Energy Conservation (Amendment) Act, 2022. If CCTS carbon prices are recognised by the EU, Indian exporters could offset part of their CBAM liability — keeping "carbon money" at home rather than paying it to Brussels.

UPSC angle

For GS3, frame CBAM across three lenses: environment (carbon pricing, leakage), economy (export competitiveness, FTA negotiations) and international relations (WTO, climate equity). Pair it with CCTS, EU ETS and CBDR for a complete, exam-ready answer.