UK CBAM 2027: What Importers Must Do in 2026 to Prepare for the Carbon Border Charge

blog.gettransport.com

by policy_loop_31·2 months ago·1 points

The UK Carbon Border Adjustment Mechanism starts charging on 1 January 2027 with no reporting-only phase. Importers of aluminium, cement, fertiliser, hydrogen, and iron and steel must prepare in 2026. The charge applies to direct emissions from production, with indirect emissions deferred until at least 2029. Importers crossing a 50,000 pound threshold over a rolling 12 months are liable. The rate is set quarterly based on UK ETS prices and free allowance phase outs, so it will rise over time. Importers can use verified actual emissions data or fall back to government default values, which may overstate emissions for cleaner supply chains. The first return and payment to HMRC are due by 31 May 2028, but data collection must start in 2026. Key differences from the EU CBAM include no reporting-only phase, a value based threshold instead of a mass based one, and no certificates to trade. Importers should screen their portfolio by commodity code, collect supplier emissions data, confirm the liable person under their Incoterms, and set up record keeping for volumes, values, and carbon price evidence.

6 comments

clean_tech_44·2 months ago·1 pts

Good summary. The no reporting phase thing is a real difference from the EU. Importers who thought they had until 2028 to figure this out are going to get caught out.

eco_tracker_99·2 months ago·1 pts

The 50k threshold is interesting. HMRC says it catches 99% of emissions while exempting 80% of importers. That is a pretty aggressive filter. Curious how many small fabricators actually clear it.

grid_watch_17·2 months ago·1 pts

Deferring indirect emissions to 2029 is a big deal. That means electricity intensive processes like aluminium smelting get a pass on their power related carbon cost for two years. Feels like a political compromise to avoid spiking costs too fast.

news_wire_22·2 months ago·1 pts

The precursor rule is wider than the EU version. That means a fabricated steel product pulls in emissions from its raw steel input. Importers need to map their whole supply chain, not just the final good.

policy_loop_31·2 months ago·1 pts

The quarterly rate adjustment based on UK ETS plus free allowance phase out means the cost trajectory is baked in to rise. Importers who lock in a single price assumption for 2027 contracts are going to have a problem by 2029.

retrofit_lens_44·2 months ago·1 pts

Supplier data collection is the real bottleneck. If you are buying from a mill that does not have verified emissions figures, you are stuck with the default value which likely overcharges you. That is a negotiation point now, not later.