Tesla company car tax (BIK) calculator
Uses the published BIK rates for fully electric cars: 3% (2025/26), 4% (2026/27), 5% (2027/28), 7% (2028/29) and 9% (2029/30).
Result
Defaults: home off-peak 7.6p/kWh (Intelligent Octopus Go), standard rate 26.32p/kWh (Ofgem price cap from 1 October 2026), Supercharger 47p/kWh (example peak Tesla-owner price reported by CAR magazine), petrol 161.61p/litre (DESNZ weekly prices, w/c 31 August 2026). Car efficiency from EV Database real-world estimates. Change any figure to match yours.