Salary Sacrifice EV Calculator 2025/26
Calculate your electric car scheme savings — income tax, NI, BIK, and net monthly cost
Last updated: March 2026
UK Salary Sacrifice EV Calculator 2025/26
Calculate your monthly savings on an electric car through your employer's salary sacrifice scheme
BIK Rates 2025/26 by CO2 Emissions
Benefit in Kind rates determine how much tax you pay on the car through payroll. EVs attract just 3% — the lowest rate available.
| CO2 Emissions (g/km) | Vehicle Type | BIK Rate 2025/26 |
|---|---|---|
| 0 g/km | Fully Electric (EV) | 3% |
| 1–50 g/km (130+ mile electric range) | PHEV (extended range) | 5% |
| 1–50 g/km (70–129 mile range) | PHEV | 8% |
| 1–50 g/km (40–69 mile range) | PHEV | 12% |
| 51–75 g/km | PHEV / mild hybrid | 14% |
| 76–94 g/km | Petrol/diesel | 17% |
| 95–99 g/km | Petrol/diesel | 19% |
| 100–104 g/km | Petrol/diesel | 20% |
| 120–124 g/km | Petrol/diesel | 25% |
| 145–149 g/km | Petrol/diesel | 31% |
| 170+ g/km | High-emission petrol/diesel | 37% |
How Does Salary Sacrifice for Electric Cars Work in the UK?
Salary sacrifice for electric vehicles is one of the most tax-efficient employee benefits available in the UK today. The scheme works by allowing you to exchange a portion of your gross salary for a company-leased electric car. Because the sacrifice happens before income tax and National Insurance are applied, you receive a substantial reduction in your overall tax bill — with the added benefit that the 3% BIK rate on EVs means the taxable benefit charge is minimal.
Why EVs Are the Best Salary Sacrifice Car
The fundamental advantage of choosing a fully electric vehicle for salary sacrifice is the 3% Benefit in Kind (BIK) rate in 2025/26. Compare this to a high-emission petrol car at 37% BIK, and the difference in annual tax cost is enormous. On a £35,000 car, a 40% taxpayer pays just £420/year in BIK tax on an EV versus £5,180/year on a high-emission petrol. The government has deliberately set EV BIK rates low to accelerate fleet electrification — and these rates, while rising gradually, remain far below petrol and diesel alternatives through 2029/30.
The tax savings stack in three distinct ways. First, income tax: by reducing your gross salary, less income tax is collected each month. A 40% taxpayer sacrificing £500/month saves £200/month (£2,400/year) in income tax alone. Second, employee National Insurance: reducing gross salary also reduces the amount of employee NI you pay at 8% on earnings above £12,570. Third, the employer NI saving: your employer saves 15% employer NI on the sacrificed amount. Many providers pass this saving back as a further reduction to your monthly payment, making the scheme even more attractive.
What Is Included in a Salary Sacrifice EV Package?
One key advantage over a personal lease is that salary sacrifice packages are typically all-inclusive. The monthly payment usually covers the lease rental itself, fully comprehensive insurance, annual servicing and maintenance, tyre replacement, breakdown cover, and road fund licence (road tax). This bundled approach simplifies budgeting — your one monthly sacrifice covers virtually all motoring costs. Home charger installation may also be included by some providers, though this is less universal.
Employer NI Savings — Why This Makes Schemes Cost-Neutral
Employers save 15% employer NI contributions on the portion of salary that is sacrificed. On a £500/month sacrifice, the employer saves £75/month per employee (£900/year). Fleet providers such as Octopus Electric Vehicles, Tusker, and Zenith use these employer NI savings to subsidise the scheme, often making it entirely cost-neutral for the employer to offer. For HR teams, this is a significant recruitment and retention benefit that costs the business nothing — and often generates a net saving once multiple employees participate.
What Happens If You Leave Your Job?
Leaving employment is the most important risk factor to understand before joining a salary sacrifice scheme. If you leave, the three most common outcomes are: (1) returning the car — the standard option, with any early termination charge covered by the employer or your early exit insurance; (2) taking over the lease personally — you can often continue the lease in your own name at market rates, but this removes the tax advantages; (3) transferring to a new employer — possible only if both employers use compatible providers. Before signing, always check whether your employer carries early termination risk or passes it to you, and consider whether early exit protection insurance (typically £5–£15/month) is worthwhile given your employment situation.
Leading UK Salary Sacrifice EV Providers
- Octopus Electric Vehicles — Market leader with strong customer service, wide model range, and integrated home charging solutions
- Tusker — Established fleet provider with a large employer network and transparent pricing
- Zenith — Full fleet management including commercial vehicles; strong for larger employers
- Loveelectric — Specialist EV-only provider with competitive pricing on popular models
- Fleet Evolution — Independent broker with access to multiple funders for competitive quotes
HMRC Rules and Important Caveats
HMRC's OpRA (Optional Remuneration Arrangements) rules, introduced in April 2017, prevent salary sacrifice from reducing the BIK charge below the cash equivalent for most benefits. However, electric vehicles are specifically exempted from OpRA restrictions — meaning the tax savings on EVs remain fully intact. The car must be a genuine company car (registered to the employer), and the arrangement must be a contractual salary sacrifice — not a simple reimbursement. The lease must meet HMRC's definition of an employment benefit for the tax treatment to apply.
One consideration for lower earners: the NMW (National Minimum Wage) restriction means your post-sacrifice salary cannot fall below the National Minimum Wage threshold. This limits salary sacrifice participation for employees on lower wages. Employers are responsible for monitoring compliance. Additionally, sacrificing salary reduces your pensionable pay under some pension schemes, and reduces the salary figure used for mortgage affordability assessments — discuss both with your financial adviser before committing.
Worked Example: 40% Taxpayer, £35,000 EV
Salary: £60,000 | Monthly sacrifice: £550 | P11D value: £35,000 | CO2: 0g/km (EV)
- Annual salary sacrifice: £6,600/year
- Income tax saving (40%): £2,640/year (£220/month)
- Employee NI saving (8%): £528/year (£44/month)
- BIK charge: £35,000 × 3% = £1,050/year taxable benefit
- BIK income tax (40%): £420/year (£35/month)
- Net monthly cost: £550 − £220 − £44 + £35 = £321/month
- Employer NI saving (15% of £550): £82.50/month — often returned to further reduce cost
- Annual saving vs personal lease + running costs: approximately £3,700–£4,500/year