How Much Can You Save With an EV Salary Sacrifice Scheme?

Most UK drivers save roughly 20% to 50% of the gross cost of an electric car through a salary sacrifice scheme, depending on their tax band. The payment leaves your salary before Income Tax and National Insurance are applied, so you pay less of both. The only offset is a Benefit-in-Kind (BiK) charge, set by HMRC at just 4% of the car’s P11D value in 2026/27. Because EVs are exempt from the Optional Remuneration Arrangement rules that removed the saving for petrol cars, this advantage applies in full.

That combination of reduced Income Tax, reduced National Insurance and a very low BiK charge is what produces savings that can reach thousands of pounds over a three-year agreement. The exact figure depends on which tax band you sit in and which car you choose.

How does an EV salary sacrifice scheme actually save you money?

The payment is deducted from your gross salary before PAYE is calculated, which means the amount you sacrifice is never taxed as income. Here are the three components in practice:

• Income Tax saved. The sacrifice reduces the gross pay on which PAYE is applied. A basic-rate taxpayer saves 20p for every £1 sacrificed; a higher-rate taxpayer saves 40p; an additional-rate taxpayer saves 45p.
• National Insurance saved. The same reduction applies to the earnings figure used for employee NI. At 8% on earnings up to £50,270 and 2% above that, a basic-rate taxpayer gains an extra 8p per £1 sacrificed on top of the Income Tax saving. Above £50,270 the NI saving is 2p per £1.
• BiK tax paid. The car is treated as a taxable benefit, so you pay tax on 4% of its P11D value for 2026/27. This is the one cost that partly offsets the saving, but at 4% it is substantially lower than the rates applied to petrol or diesel vehicles.

Because EVs emit 0g/km CO2, they are exempt from HMRC’s OpRA rules, which means the taxable amount is the BiK value alone, not the salary given up. That exemption is what makes the scheme work at all for EVs in 2026.

The combined EV salary sacrifice tax saving therefore runs to around 28% of gross sacrifice for a basic-rate taxpayer (20% Income Tax plus 8% NI), around 42% for a higher-rate taxpayer (40% plus 2%), and around 47% for an additional-rate taxpayer (45% plus 2%).

What is the Benefit-in-Kind charge and how does it affect your saving?

The BiK charge is the government’s way of taxing a car provided by an employer, even when you are paying for it through salary sacrifice. Understanding the formula lets you sense-check any quote a scheme provider gives you.

The calculation is straightforward: P11D value multiplied by the BiK percentage, multiplied by your Income Tax rate. On a £40,000 EV at 4% BiK, the taxable benefit is £1,600 a year. For a 40% taxpayer that means £640 in tax per year, or roughly £53 a month.

The EV BiK rate is scheduled to rise gradually: 4% in 2026/27, 5% in 2027/28, 7% in 2028/29 and 9% in 2029/30. Following the Autumn Budget of November 2025, this trajectory is understood to be confirmed through to 2030, though figures vary and you should verify current rates against the latest HMRC guidance at the time you sign. Even at 9%, the EV rate sits far below the 30% or above applied to petrol and diesel company cars, which is why the maths still works for electric vehicles.

A lower P11D value means a lower BiK charge, which is the direct link between the car you choose and the saving you achieve.

How much can you save by tax band?

The table below uses a single illustrative car across all three tax bands so the comparison is clean. The gross monthly sacrifice is £630, which corresponds broadly to a mid-range EV such as a Tesla Model 3. These figures are illustrative: a provider’s net cost will include insurance, maintenance, tyres, breakdown cover and road tax bundled in, so your actual number will differ. Figures vary; verify current data with your scheme provider and employer.

	Basic rate (20%)	Higher rate (40%)	Additional rate (45%)
Monthly sacrifice (gross)	£630	£630	£630
Income Tax saving per month	£126	£252	£284
NI saving per month (approx.)	£50	£13	£13
BiK charge per month (approx.)	£27	£53	£60
Net monthly cost (approx.)	£481	£418	£413
Saving vs gross	~24%	~34%	~34%

Based on GOV.UK Income Tax rates and National Insurance rates. BiK calculated on a £40,000 P11D value at 4% (2026/27). Figures are before any bundled insurance or maintenance; provider quotes will differ.

The Electric Car Scheme’s published worked examples show a 20% taxpayer saving around £2,676 over 36 months on a VW ID.3, a 40% taxpayer saving around £8,004 over 36 months on a Tesla Model 3, and a 45% taxpayer saving around £16,622 over three years on a BMW iX. These are provider figures that include bundled running costs, so treat them as indicative rather than like-for-like with a personal lease quote.

Your actual saving also depends heavily on the car you choose, because a lower P11D value means a smaller BiK charge. If you want the models that stack up best on this, see our pick of the best electric cars for salary sacrifice.

Salary sacrifice versus a personal lease: is it cheaper?

For most employees in the basic rate band and above, salary sacrifice produces a lower net monthly cost than a personal lease on the same car. Scheme providers typically quote net costs of 20% to 50% lower than a comparable personal lease, because the sacrifice comes from gross pay rather than money you have already been taxed on.

There are a few other differences worth knowing:

• What is included. Salary sacrifice packages almost always bundle insurance, servicing, tyres, breakdown cover and road tax into one monthly figure. A personal lease covers none of these, so the true cost of a personal lease is higher once you add running costs.
• Flexibility. A personal lease belongs to you regardless of who employs you. A salary sacrifice agreement is tied to your employment contract, which creates a risk if your circumstances change (see the next section).
• Access. Some employers cap the available models or set a maximum sacrifice level, whereas a personal lease lets you choose any car within budget.

The net-cost advantage of salary sacrifice is real, but it only holds for as long as you stay with your employer and in the same tax band. For someone planning a career move or an imminent mortgage application, the trade-off may not stack up in the short term.

What are the downsides and risks?

Salary sacrifice is a strong deal for most employees, but there are genuine risks that provider marketing tends to downplay.

• Leaving your job. If you resign or are made redundant mid-term, an early termination charge applies. Most reputable schemes include Early Termination Protection that caps the liability, often at a few months of remaining payments or half the remaining balance, whichever is lower. Some schemes also allow the lease to be novated to a new employer. Check the specific terms before signing, because not all schemes handle this the same way.
• Pension contributions. Whether your pension is affected depends on how your employer calculates contributions. Most use notional (pre-sacrifice) pay, which means your pension is not reduced. Some use the lower post-sacrifice figure, which can reduce both employee and employer contributions over the life of the agreement. Ask HR which method applies.
• Mortgage applications. Lenders assess affordability on your reduced gross salary, not your original figure. For high loan-to-value applications, typically 90% to 95%, this can meaningfully reduce how much you can borrow. If you are planning to apply for a mortgage or remortgage in the near term, speak to a broker before committing to a salary sacrifice agreement.
• National Minimum Wage floor. Your post-sacrifice pay cannot fall below the National Minimum Wage. For lower-earning employees this may limit the car value available or rule out the scheme entirely.

The saving is substantial, but understanding these four risks puts you in a much better position to judge whether the timing is right.

The car you choose is the single biggest lever on your net monthly cost: a lower P11D value keeps the BiK charge small and the net saving large. Our best electric cars for salary sacrifice rounds up the models that deliver the strongest combination of range, running cost and P11D efficiency for 2026. For the wider context of how salary sacrifice fits into UK company car and fleet policy, see our company cars and fleet guide.

Useful Resources

GOV.UK Income Tax rates and bands https://www.gov.uk/income-tax-rates

GOV.UK Tax on company benefits (company cars) https://www.gov.uk/tax-company-benefits/tax-on-company-cars

Zapmap EV salary sacrifice guide https://www.zapmap.com/ev-guides/ev-salary-sacrifice