Electric vehicle (EV) salary sacrifice is one of the most tax-efficient ways to drive a new car in the UK right now. With a Benefit in Kind (BiK) rate of just 2% until 2027/28, the combination of tax and NI savings makes it significantly cheaper than a personal lease or finance deal.
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How EV salary sacrifice works
Your employer leases an electric car and makes it available to you. You give up part of your gross salary in exchange — the sacrifice reduces your taxable pay. However, unlike Cycle to Work, an EV is a taxable benefit, so you pay Benefit in Kind (BiK) tax on it.
The key is that the BiK rate for fully electric cars is just 2% of the car's list price — far lower than petrol or diesel cars (which attract 25–37% BiK).
The 2% BiK rate is confirmed until 2027/28, rising to 3% in 2028/29 and 4% in 2029/30. Acting now locks in the lowest rates.
The maths: a real example
A basic rate taxpayer sacrificing £500/month for a £35,000 EV:
So the £500/month sacrifice effectively costs only £372/month in reduced take-home pay — and that includes insurance, servicing, and breakdown cover in most schemes.
Savings by tax band
| Tax band | Tax saved | NI saved | BiK cost | Net saving (£35k car) |
|---|---|---|---|---|
| Basic rate (20%) | £1,200 | £480 | £140 | £1,540/year |
| Higher rate (40%) | £2,400 | £120 | £280 | £2,240/year |
| 60% trap | £3,600 | £120 | £280 | £3,440/year |
Higher rate taxpayers save even more because the BiK is also taxed at their marginal rate — but the sacrifice saving is proportionally larger, so the net benefit is still strongly positive.
How BiK is calculated
BiK tax = List price × BiK % × your marginal tax rate
For a £35,000 EV at 2% BiK, taxed at 20%: £35,000 × 2% × 20% = £140/year
This is added to your Adjusted Net Income — so it slightly increases your taxable income, but the sacrifice saving far outweighs it.
What's included in most EV salary sacrifice schemes?
Most employer schemes bundle:
- The car lease
- Insurance
- Servicing and maintenance
- Breakdown cover
- Road tax (VED — currently £0 for EVs, rising to £190 from April 2025)
- Tyre replacement
Charging costs are typically not included, though some employers offer a home charger installation allowance.
EV salary sacrifice vs personal lease
| EV salary sacrifice | Personal lease | |
|---|---|---|
| Paid from | Pre-tax salary | Post-tax salary |
| Tax/NI saving | ✓ | ✗ |
| BiK tax | ✓ (2%) | ✗ |
| Insurance included | Usually | Extra |
| Servicing included | Usually | Extra |
| Affects gross pay | ✓ | ✗ |
| Mortgage impact | Possibly | ✗ |
Important considerations
EV salary sacrifice reduces your gross pay, which can affect mortgage affordability assessments, statutory maternity/paternity pay calculations, and pension contributions (if based on gross salary). Check these implications before signing up.
- Minimum salary: You cannot sacrifice below the National Living Wage (£11.44/hour in 2024/25)
- Contract length: Typically 2–3 years — early termination can be costly
- Employer must offer it: Not all employers run EV schemes; check with HR
How to get started
- Check your employer offers an EV salary sacrifice scheme
- Choose a car within your employer's approved list
- Get a quote — the scheme provider will show your net monthly cost
- Sign the salary sacrifice agreement
- Take delivery — payments start on your next payslip
Summary
- EV salary sacrifice uses pre-tax salary — saving income tax and NI
- 2% BiK rate until 2027/28 makes EVs uniquely tax-efficient
- A basic rate taxpayer can save £1,500+/year vs a personal lease
- Higher rate taxpayers save even more
- Check mortgage and statutory pay implications before signing
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