EV Salary Sacrifice Calculator Trending

An EV salary sacrifice scheme lets you lease an electric car through your employer, paying for it out of gross salary before income tax and National Insurance are worked out. The Benefit in Kind rate for pure electric vehicles is what makes the sums work: 2% for 2024/25, 3% for 2025/26 and 4% for 2026/27, rising to 5% in 2027/28 and reaching 9% by 2029/30. Even at the top of that schedule the charge stays far below the percentages applied to petrol and diesel cars.

The saving comes from two directions at once. You avoid income tax and NI on the sacrificed salary, and the benefit charge on the car itself is small, so a higher-rate taxpayer typically ends up 40% to 50% better off than leasing the same vehicle personally. The monthly payment normally bundles insurance, maintenance, breakdown cover and tyres, so there is little left to pay separately.

Put numbers on it and the scale becomes clear. A £50,000 Tesla Model 3 at the 4% rate produces a benefit of £2,000, which costs a 40% taxpayer £800 a year in income tax. Employees pay no NI on a car benefit (the employer pays 15% Class 1A on it), so £800 is the whole annual tax cost of running the car. Paying for the same car out of taxed salary would take about £86,000 of gross pay at a 42% marginal rate, which is the comparison that makes the perk so popular.

This calculator works out the net cost of leasing an EV through salary sacrifice. Enter your salary, the car's list price, which sets the benefit-in-kind charge, and the monthly lease cost, and it shows the BiK tax payable, the tax and NI savings and the effective monthly cost, ready to set against a personal lease or PCP quote. On a £50k car a gross lease cost of about £700 a month usually comes down to £400 to £500 in real terms for a higher-rate taxpayer once the tax and NI savings are netted against the benefit charge. Contracts generally run for 2-4 years.

Against personal ownership the comparison is less lopsided than it first looks. Financing a £50k EV yourself costs roughly £800 a month, plus around £700 a year for insurance and another £500 or so for servicing, MOT and breakdown cover, and you carry the depreciation risk on a fast-moving used market. Salary sacrifice covers all of that inside the monthly figure and hands the car back at the end, which is also the catch: you own nothing when the contract finishes. The trade is cash and ownership on one side, lower cost and flexibility on the other.

Five details are worth checking before you sign. Sacrifice cannot take your pay below the minimum wage floor of £12.71 an hour for the hours you work. Leaving your employer usually means settling the balance of the lease, although some employers absorb it. Cars over £40k attract the £440 a year expensive car supplement in years 2-6, and the threshold for electric cars rose to £50k from April 2026. The benefit rate you start on is not the rate you finish on, since the scheduled increases will land partway through a typical contract. And a partner or family member can drive the car, but it remains a taxable benefit of the employee who sacrificed the salary.