NEDC vs WLTP: The Shift
WLTP values are typically 20-30% higher than old NEDC figures. Revenue uses the WLTP figure (Field V.7) to calculate your VRT band.
The Importance of the CoC
The Certificate of Conformity (CoC) is the "birth certificate" of your car. It contains the definitive WLTP CO₂ figure used for VRT calculation.
- • Check Item 47 for WLTP Combined values.
- • Ensure the CoC matches your VIN exactly.
Calculate Your Tax
Our VRT Calculator is fully updated with the 2026 WLTP tax bands. Enter your WLTP CO₂ figure to get an exact tax estimate.