NEW DELHI/LONDON, 31 OCTOBER 2026 — India is pursuing further engagement with the United Kingdom over the implementation of its Carbon Border Adjustment Mechanism (CBAM), as the introduction of carbon-related import taxation approaches for five industrial sectors on 1 January 2027.
The discussions, reported on 30 October, concern the calculation of embedded emissions, independent verification requirements and the recognition of carbon prices already paid by Indian manufacturers. These issues could affect the costs faced by British importers purchasing Indian steel, aluminium, cement, fertilisers and hydrogen.
For New Delhi, the negotiations have commercial implications for industrial exporters competing with UK manufacturers and suppliers from countries operating established carbon-pricing systems. India’s request for additional discussions does not, however, constitute an agreed exemption or an amendment to existing British legislation.
UK establishes independent carbon-border taxation framework
The British CBAM operates separately from the European Union’s mechanism and follows its own statutory framework for calculating carbon-related import liabilities.
The UK system covers five sectors: iron and steel, aluminium, cement, fertilisers and hydrogen. Its introduction is intended to address differences in carbon-pricing costs between domestic production and imports, including the risk of production relocating to jurisdictions with lower carbon costs.
Unlike the EU mechanism, which uses certificates linked to the EU Emissions Trading System (EU ETS), the British framework applies a tax calculated according to UK-specific statutory rules.
The tax becomes applicable on 1 January 2027. However, the first accounting period covers the 2027 calendar year, with relevant importers declaring and paying their liabilities in 2028, subject to applicable registration and reporting requirements.
The January 2027 commencement date therefore marks the beginning of the tax regime rather than the deadline for the first payment. Coverage is determined by the relevant commodity classifications, not by broad industrial descriptions encompassing all steel products or manufactured goods.
Indian carbon-pricing recognition does not guarantee lower liabilities
One of the principal subjects of the discussions is the treatment of India’s domestic carbon-pricing arrangements under the British mechanism.
On 27 August 2026, the UK published a provisional list of qualifying overseas carbon-pricing schemes that included India’s Carbon Credit Trading Scheme. The list also identifies Serbia’s carbon tax and Montenegro’s emissions-trading scheme, alongside other national and regional arrangements.
Recognition is relevant because the UK framework allows eligible carbon prices effectively paid on emissions associated with imported products to be taken into account when determining tax liabilities.
However, recognition of a national scheme does not automatically establish a reduction for every product manufactured in that country. Importers must provide evidence of the relevant embedded emissions, qualifying carbon-price payments and any adjustments required under British rules.
The treatment of free allowances and refunds is particularly important. Where producers receive free allocations or recover part of their carbon-related payments, the effective price paid may differ considerably from the nominal domestic carbon price.
Consequently, participation in a recognised carbon-pricing system does not necessarily translate into a corresponding reduction in UK CBAM costs for individual exporters.
Emissions verification and regulatory defaults affect import calculations
Indian manufacturers must also address the requirements for production-level emissions documentation. British importers seeking to calculate liabilities using actual emissions will require records prepared and verified in accordance with the UK’s monitoring and verification framework.
Where compliant actual-emissions information is unavailable, the applicable regulatory default values may be used. The difference between installation-specific emissions and prescribed defaults can therefore influence the carbon-related cost of supplying the British market.
The outcome depends on the production installation, the imported product and the applicable emissions calculation methodology. Verification alone does not guarantee a lower liability; the supporting evidence must demonstrate an emissions result that produces a more favourable calculation under the relevant rules.
The British government published further technical documentation on 16 October 2026, covering emissions monitoring, verification procedures, illustrative tax rates and default values. These publications form part of the technical framework relevant to implementation but do not represent additional regulatory developments announced on 30 October.
Indian exporters prepare for separate EU and UK obligations
India’s industrial exporters face two distinct carbon-border systems in major European markets. The EU entered its definitive CBAM phase on 1 January 2026, while the British regime is scheduled to begin on 1 January 2027.
The mechanisms differ in product classifications, administrative procedures, carbon-cost calculations, verification requirements and the recognition of carbon prices paid outside their respective jurisdictions.
Manufacturers supplying both markets may consequently need separate emissions calculations and compliance documentation, even when products originate from the same production installation.
These differences create additional administrative and technical requirements, particularly for steel and aluminium manufacturers whose European and British customers increasingly require reliable information on embedded emissions.
Carbon-related obligations may also become relevant to commercial negotiations involving product pricing, long-term supply agreements, procurement arrangements and the allocation of emissions-verification responsibilities between manufacturers and importers.
Serbia and Montenegro included in UK carbon-pricing recognition framework
The inclusion of Serbian and Montenegrin carbon-pricing arrangements in the UK’s provisional recognition framework is also relevant to Western Balkan industrial exporters.
For these countries, the potential reduction in UK CBAM liabilities depends on the carbon price actually paid, the emissions covered by the relevant domestic system and the supporting documentation available to demonstrate eligibility.
A nominal domestic carbon tax or emissions-trading obligation does not automatically provide a deduction equivalent to the headline national carbon price.
Serbian steel, metal-processing and cement manufacturers supplying British customers will need to distinguish between product-level emissions evidence and documentation demonstrating qualifying domestic carbon payments.
Montenegrin aluminium exporters face comparable requirements when supplying products covered by the British mechanism.
Responsibility for compliance remains with the relevant UK importers, even when the emissions information and carbon-pricing evidence originate from manufacturers or authorities outside the United Kingdom.
No general exemption agreed through India-UK discussions
India’s request for further engagement may address implementation questions and the practical treatment of exporters, but the applicable British legal framework remains unchanged unless additional measures are formally adopted.
The UK framework provides for possible exemptions associated with linked emissions-trading arrangements. However, no jurisdiction currently benefits from such an exemption under the published arrangements.
A free trade agreement also does not automatically remove CBAM obligations.
Indian manufacturers therefore need to prepare emissions records, establish whether domestic carbon-price payments qualify for recognition and provide the documentation required by British customers and importers.
The discussions between New Delhi and London take place as carbon pricing becomes an increasingly relevant element of international industrial trade. Any reduction in compliance uncertainty will depend on the treatment formally established under UK rules; no agreement eliminating India’s exporters’ exposure to the British carbon-border tax has been confirmed.
