Salary Sacrifice EV Full Model Calculator 2026/27
Full economic model of EV salary sacrifice - lease cost + tax saving via sacrifice + BIK 4% cost + Employer NI saving.
EV models + cost scenarios
| EV model | Annual lease | Tax saving from sacrifice | BIK income tax | Net annual cost |
|---|---|---|---|---|
| Tesla Model 3 | £6,600 | £2,772 | £720 | £4,548 |
| Polestar 2 | £7,440 | £3,125 | £800 | £5,115 |
| Audi Q4 e-tron | £8,160 | £3,835 | £990 | £5,315 |
| Tesla Model Y | £8,400 | £3,528 | £880 | £5,752 |
| Volvo EX30 | £5,040 | £2,117 | £560 | £3,483 |
Frequently asked questions
How does EV salary sacrifice work?
Employer leases car. Employee sacrifices salary in exchange. Saves Income Tax + Employee NI on sacrificed amount. BIK 4% on car value taxed. Employer saves 15% Employer NI on sacrificed amount.
BIK rate 4%
2026/27 EV BIK 4%. Rising to 5% (2027/28), 6% (2028/29), 7% (2029/30). Still well below petrol/diesel 25-37%.
Net cost saving vs lease
Typical 30-50% saving vs personal lease for higher-rate employee. Bigger for additional rate.
EV charging at home
Employer-provided home charger - capital expense, possibly BIK if for personal use too. Workplace charging exempt.
Mileage allowance
EV business miles 5p / mile via AMAP. Employer can pay this tax-free. Personal use considered in BIK calculation.