UK ETS Shipping Liability

From 2026, UK-domestic shipping voyages (UK port to UK port, ≥ 5,000 GT) come under the UK ETS - similar scope + mechanism to EU ETS but a separate allowance market.

UKUK ETS

UK-domestic CO₂tCO₂ emitted on voyages between UK ports plus at UK berths.UKA price£

UKAs required: 500t CO₂e

Cost at current UKA price: 20,000£

Changing the inputs requires JavaScript. The calculator above shows its default inputs and result. The formula, symbols, and regulatory sources are shown in the Formula section below.

Formula, assumptions, limits

UK ETS treats UK-domestic shipping as a separate scheme from EU ETS - UK allowances (UKAs) are not interchangeable with EUAs. UK-EU voyages sit under EU ETS; UK-UK voyages under UK ETS. A ship doing mixed domestic and international work splits its annual emissions between the two schemes based on voyage end-points.

In short

Compute UK Emission Trading Scheme allowances needed for UK-domestic shipping voyages.

Learn the theory EU ETS for shipping: scope, EUA liability, phase-in