UK EV Company Car Tax Guide 2025–2028: BiK Rates, Tax Write-Offs & Employer NI
Electric company cars remain one of the single most lucrative tax planning strategies for UK business owners, company directors, and employees. By aligning company car tax on electric cars uk with 100% First-Year Capital Allowances, companies can maximize electric car tax write off uk opportunities while offering staff attractive company tax benefits for electric cars uk.
This comprehensive guide details the HMRC Benefit-in-Kind (BiK) rate timeline through 2028, Corporation Tax deductions, Class 1A National Insurance savings, and practical advice on structuring tax relief on electric cars uk 2026.
1. Electric Company Car BiK Rates (2024–2028)
When an employer provides a vehicle to an employee or director for private use, HMRC treats the benefit as taxable income. The taxable benefit is calculated as:
HM Treasury has confirmed the uk ev tax BiK schedule through 2028 to provide long-term planning stability for corporate fleets:
| Tax Year | Zero-Emission EV (BEV) BiK % | Taxable Value (£40,000 EV) | 40% Taxpayer Annual Bill |
|---|---|---|---|
| 2024 / 2025 | 2% | £800 | £320 / year (£26.66 / mo) |
| 2025 / 2026 | 3% | £1,200 | £480 / year (£40.00 / mo) |
| 2026 / 2027 | 4% | £1,600 | £640 / year (£53.33 / mo) |
| 2027 / 2028 | 5% | £2,000 | £800 / year (£66.66 / mo) |
2. 100% First-Year Capital Allowances (Corporation Tax Write-Off)
One of the most attractive tax advantages of electric cars uk for limited companies is the 100% First-Year Capital Allowance (FYA).
When a business purchases a brand-new zero-emission electric car, 100% of the cost can be written off against taxable profits in the first accounting period:
By contrast, purchasing a petrol or diesel company car with emissions exceeding 50g/km limits capital allowances to just 6% per year on a reducing balance basis.
3. Employer Class 1A National Insurance Savings
Employers pay Class 1A National Insurance on non-cash benefits provided to employees. Class 1A NI is calculated at 15% (for 2025/26) of the BiK taxable value.
Because an electric vehicle's BiK taxable value is small, employer NI contributions drop dramatically:
- £45,000 Petrol Car (30% BiK): Taxable value = £13,500 → Employer Class 1A NI = £2,025 / year
- £45,000 Electric Car (3% BiK): Taxable value = £1,350 → Employer Class 1A NI = £202.50 / year
- Annual Employer NI Savings: £1,822.50 / year per vehicle!
4. Workplace Charging & Re-Charging Tax Exemptions
HMRC provides additional tax breaks for electric cars uk regarding electricity supply and charging infrastructure:
5. Real-World Case Study: EV vs Petrol Company Car
Let's compare the total 3-year corporate and personal tax impact of leasing a £45,000 Electric Car vs a £45,000 Petrol Car for a 40% higher rate employee:
| Metric (3-Year Total) | Electric Car (BEV) | Petrol Car (ICE) | Net EV Savings |
|---|---|---|---|
| Employee BiK Tax (40% Taxpayer) | £1,440 (£40/mo avg) | £16,200 (£450/mo) | Save £14,760 |
| Employer Class 1A NI (15%) | £540 | £6,075 | Save £5,535 |
| Annual VED Road Tax (Year 2+) | £1,200 (includes luxury surcharge) | £1,200 (includes luxury surcharge) | Equal |
| Combined 3-Year Tax Savings | £20,295 Total Tax Saved! | ||
6. Calculating Corporate EV Tax Savings
To model exact numbers for your business or personal company car scheme, use our suite of free online financial calculators:
Finsiva UK Tax Tools
Calculate Benefit-in-Kind tax, road tax (VED), and National Insurance contributions instantly: