The UK's carbon border tax lands in January 2027, covering aluminium, cement, fertiliser, hydrogen, iron and steel. Exporters who prepare now keep their UK contracts.
The United Kingdom launches its own Carbon Border Adjustment Mechanism on 1 January 2027. If you export aluminium, cement, fertilisers, hydrogen, iron or steel to the UK, your goods will carry a carbon charge linked to the UK ETS price (modelled around £50/tCO₂).
How UK CBAM differs from the EU version
• Scope: five sectors, being aluminium, cement, fertilisers, hydrogen, and iron and steel. No electricity. Glass and ceramics were excluded from the 2027 launch, the government judging them on average less emissions intensive than the sectors in scope
• Threshold: registration is required once you cross £50,000 of CBAM goods over a rolling twelve months, raised from the £10,000 originally proposed
• Mechanism: a levy administered through UK tax systems rather than certificate trading
• Price reference: UK ETS, which trades differently from the EU ETS — your two markets will price your carbon differently
• Registration and filing sit with the UK importer — but the emissions data burden lands on you, the producer
Why African exporters should care now, not in 2027
UK buyers are already asking suppliers for CBAM readiness in contract negotiations for 2027 delivery. Procurement teams don't wait for a tax to start — they de-risk a year ahead. The suppliers who can show verified emissions data today are being written into 2027 contracts today.
Your quarter-by-quarter readiness plan
Q3 2026 (now): Map which of your products fall in scope by HS code. Start recording electricity, fuel and process data per production process. Request your grid emissions factor.
Q4 2026: Build your first full emissions calculation — direct and indirect, per tonne, per product. If you already do EU CBAM reporting, extend the same dataset; the physics doesn't change, only the paperwork.
Q1 2027 (launch): UK CBAM live. Provide your UK importers with your emissions data pack — installation details, per-tonne figures, verification evidence, and any carbon price paid at home (it may be deductible).
Q2 2027: Review your first quarter of UK filings with your importer. Fix data gaps immediately — defaults are as punitive in the UK design as the EU one.
The double-market advantage
African producers with clean grids — Mozambican and Cameroonian hydro-smelted aluminium, Moroccan and Egyptian gas-based fertilisers, Namibian green hydrogen — hold a structural cost advantage in BOTH carbon border regimes. But the advantage only exists on paper you can show: measured, verified, buyer-ready emissions data.
One dataset now serves two markets. TradeVault's CBAM tools calculate your exposure under both EU (€) and UK (£) regimes and package your data for either market — so the January 2027 deadline becomes a sales argument instead of a threat.