UK–EU Carbon Market Link: What It Means for CBAM

The UK and the EU meet in Brussels on 20 November 2026 with a deal to link their emissions trading systems (ETS) on the table. A link would bring mutual exemptions from each side's carbon border adjustment mechanism (CBAM), the charge on carbon-intensive imports such as steel, aluminium, cement, fertilisers and hydrogen. Nothing changes yet, though: the UK CBAM starts on 1 January 2027 and applies to EU goods, and EU importers already owe certificates on UK-origin goods imported since January 2026. Here is where the talks stand, what an exemption would legally require and what to plan for.

The state of play in 30 seconds

• Summit: Brussels, 20 November 2026, confirmed in the House of Commons on 12 October.
• Talks: the EU approved its negotiating mandate in November 2025, and in December 2025 both sides aimed to conclude by the next summit. A media report on 7 October 2026 that a link had been agreed has not been confirmed.
• CBAM: a link would mean mutual CBAM exemptions, but only once legal acts are in force on both sides.
• Today: HMRC says no jurisdiction is exempt from the UK CBAM, and the UK is not on the EU's list of exempt countries.
• Stakes: the EU imported €7.28 billion of CBAM goods from the UK in 2025, according to Eurostat data.

How the talks got here

• May 2025: the UK–EU summit agreed to work towards linking the two carbon markets.
• July 2025: the European Commission recommended opening negotiations.
• November 2025: EU member states approved the negotiating mandate.
• 17 December 2025: the UK and the Commission said they aimed to conclude the negotiations by the next summit. UK allowance prices rose about 5% on the news, and their discount to EU allowances narrowed.
• 12 October 2026: the summit was confirmed for 20 November in Brussels.

What an exemption would require

• In the UK: Treasury regulations under section 156 of the Finance Act 2026, approved by the House of Commons, to exempt goods from a linked system.
• In the EU: a linking agreement, followed by a Commission delegated act adding the UK to the exempt list, which the European Parliament or the Council can block.
• Timing: exemptions apply from the dates those acts set, not from the summit. Until then, both CBAMs apply in full.

What to do now

1. UK importers of EU goods: prepare for the UK CBAM from 1 January 2027 as if no exemption will exist. Classify goods, track the £50,000 threshold and request embedded-emissions data from EU producers.
2. UK exporters to the EU: your EU customers buy certificates from February 2027 for their 2026 imports. Give them verified installation data so they do not fall back on default values.
3. UK ETS participants: a link would bring UK and EU allowance prices together over time, so review your allowance strategy.
4. Watch 20 November: read the summit statement for dates and for any draft regulations.

How Carbonova helps

CarbonOS, from Brazil-based Carbonova, collects embedded-emissions data from suppliers, organises it by installation and product and keeps the evidence and data lineage behind each figure, including whether it rests on verified actual data or a default value. That serves the UK return and EU CBAM declarations alike. See our UK CBAM guide for importers and our regulatory compliance page. Carbonova is a software provider: it does not file returns or act as a customs agent. To see it with your import data, book a demo.

Would a UK–EU ETS link remove CBAM on UK–EU trade?

That is the aim, but it is not automatic. The UK needs exemption regulations approved by the House of Commons, and the EU needs a linking agreement and a delegated act. Until then, both CBAMs apply.

Does the UK CBAM apply to goods from the EU from January 2027?

Yes. HMRC says no jurisdiction is currently exempt, so EU-origin aluminium, cement, fertiliser, hydrogen, and iron and steel goods are covered from 1 January 2027 unless exemption regulations are made.

Do EU importers pay CBAM on UK steel today?

Yes, above the EU's 50-tonne annual threshold. Goods imported into the EU since 1 January 2026 count, and importers buy and surrender certificates for 2026 imports in 2027.

What software helps manage UK and EU CBAM data?

Look for a tool that collects verified installation data from suppliers, uses default values only where needed and keeps an audit trail for each shipment. Carbonova AI's CarbonOS does this and keeps UK and EU CBAM data in one place.

About Carbonova

Carbonova AI (carbonova.ai) is a Brazilian industrial AI company headquartered in São Paulo. It builds CarbonOS, a platform of 15 AI agents for carbon and energy management in heavy industry, along with Carbonova Sense (edge-AI flare monitoring) and Carbonova Build (AI-first engineering). It serves steel, cement, chemicals, mining, oil and gas, energy and agribusiness, with data ready for CBAM, ISSB, the GHG Protocol and Brazil's SBCE. Carbonova AI is not affiliated with Carbonova Corp. of Canada.

Sources

• CBAM Guide (12 October 2026): UK–EU summit set for 20 November with an emissions trading deal on the table
• GOV.UK: Carbon Border Adjustment Mechanism (CBAM) policy summary
• S&P Global (12 November 2025): EU Council greenlights UK carbon market linkage negotiations
• S&P Global (18 December 2025): UK carbon prices rally on pledge to finalise linking negotiations

Last reviewed: 2 November 2026