If there is one tax perk that has genuinely changed behaviour over the past few years, it is the electric vehicle salary sacrifice scheme. The numbers are remarkable: by giving up a portion of your pre-tax salary in exchange for an electric car, you can effectively drive a brand-new EV for significantly less than you would pay buying or leasing one privately. And in 2026, the deal is still very much alive.
But the landscape is shifting. Benefit in Kind (BIK) rates for electric cars are rising, and the government has signalled further increases ahead. So let us look at whether salary sacrifice for an EV still makes financial sense, how the tax works, and what to watch out for.
How EV Salary Sacrifice Works
The concept is straightforward. Your employer leases an electric car on your behalf, and the lease cost (including insurance, servicing, and breakdown cover) is deducted from your gross salary — that is, before tax and National Insurance are calculated.
Because the deduction comes off your gross pay, you save the tax and NI you would have paid on that amount. For a basic-rate taxpayer, that is a combined saving of around 28% (20% income tax plus 8% NI). For a higher-rate taxpayer, it is closer to 48%. The employer also saves on their NI contributions, which is why many companies are happy to offer these schemes.
On top of that, you pay Benefit in Kind tax on the car — but for electric vehicles, the BIK rate is still extremely low compared to petrol or diesel cars.
BIK Rates for Electric Cars: 2026/27 and Beyond
Here is the key table you need:
- 2025/26: 3% BIK rate for fully electric vehicles
- 2026/27: 4% BIK rate
- 2027/28: 5% BIK rate
- 2028/29: 7% BIK rate
Compare that to a typical petrol car, which might attract a BIK rate of 25–37% depending on emissions. Even at 7% in 2028/29, an electric car is dramatically cheaper in BIK terms.
Let us put some real numbers on this. Take a Tesla Model 3 with a list price of £40,000. At a 4% BIK rate, the taxable benefit is £1,600 per year. A basic-rate taxpayer would pay £320 in BIK tax for the year, or about £27 per month. A higher-rate taxpayer would pay £640 per year, or £53 per month.
Now factor in the salary sacrifice savings. If the monthly lease cost is £500 and you are a higher-rate taxpayer, the deduction from your gross salary saves you approximately £240 per month in tax and NI. After adding the BIK tax of £53, your effective cost for the car is around £313 per month — and that includes insurance, servicing, and road tax.
Who Benefits Most?
The tax savings are proportionally larger for higher earners, simply because they save tax at a higher marginal rate. But even basic-rate taxpayers benefit substantially. The key question is whether your employer offers the scheme — not all do — and whether the lease deals available through the scheme are competitively priced.
It is also worth noting that salary sacrifice reduces your pensionable earnings (unless your employer calculates pension contributions on your pre-sacrifice salary). It can also affect your entitlement to certain benefits if it takes your effective salary below certain thresholds. These are important considerations to discuss with your employer before signing up.
Our salary calculator can help you model the impact of a salary sacrifice on your take-home pay, and our National Insurance calculator will show you the NI savings.
What About Charging and Running Costs?
One of the big selling points of EVs is lower running costs. Home charging on a typical domestic tariff costs around 7–8p per mile, compared to 15–20p per mile for petrol. Public rapid charging is more expensive, at 12–15p per mile, but still cheaper than petrol for most vehicles.
If your employer provides workplace charging, the electricity is currently not treated as a taxable benefit, which makes it effectively free for you. This is another significant perk that tips the economics further in favour of electric.
For employees who drive for business purposes, the approved mileage rate for electric cars is 45p per mile for the first 10,000 miles, same as for petrol and diesel. This means if you use your personal EV for business travel, you can claim the full advisory rate. Use our mileage calculator to work out your claim.
Is It Still Worth It?
In a word: yes. Even with BIK rates rising, the tax advantages of an electric car through salary sacrifice remain substantial compared to any other method of acquiring a vehicle. The gap will narrow over the coming years as BIK rates increase, but at 4% in 2026/27, we are still in the sweet spot.
The main things to check before committing:
- Does the salary sacrifice reduce your salary below the National Living Wage? If so, it is not allowed
- How does it interact with your pension contributions?
- Is the lease deal competitive? Compare with personal lease quotes to make sure
- Will you have access to home or workplace charging? Without it, the running cost savings are smaller
If you are a company director deciding between a personal car and a company car, the BIK advantage for EVs is one of the most compelling reasons to go the company route. You can compare the tax implications using our dividend vs salary calculator to see how different extraction methods interact with company car benefits.
The Bigger Picture
The government's EV strategy is clear: make electric cars the financially rational choice for as long as it takes to shift the market. The 2030 ban on new petrol and diesel car sales is still in place, and the tax system is designed to nudge you towards electric well before that deadline arrives.
Whether you care about the environmental angle or not, the cold financial logic of salary sacrifice for an EV is hard to argue with. It is rare to find a tax break this generous, and the window will not stay this wide open forever.