Electric Company Car Tax & EV Infrastructure in 2026/27: Salary Sacrifice, Charge Points, and BiK Rules
A zero-emission company car is still one of the most tax-efficient benefits available in the UK. But 2026/27 is not a “set and forget” year. The Benefit-in-Kind (BiK) rate for fully electric company cars rises to 4%, salary sacrifice needs careful modelling, and charging infrastructure can directly affect both tax relief and employee experience.
For employers, the commercial question is no longer simply whether electric vehicles (EVs) are tax-efficient. The better question is how to structure the car, the payroll sacrifice, the charging policy, and the reporting so the arrangement works seamlessly in practice.
1. What Changes for Electric Company Car Tax in 2026/27?
For the 2026/27 tax year, the company car Benefit-in-Kind rate for a zero-emission vehicle increases to 4% of the car’s taxable value.
The taxable value is usually based on the car’s P11D value, which broadly means the list price including VAT, delivery, and accessories, less any capital contribution by the employee (subject to normal statutory rules).
That 4% rate still compares very favorably with petrol and diesel company cars, where the BiK percentage is driven by CO2 emissions and can reach up to 37%.
Vehicle Type | 2026/27 Tax Treatment (Broad Terms) | Commercial Impact |
Fully Electric (Zero Emission) | 4% BiK rate | Still highly tax-efficient for employees and directors |
Plug-in Hybrid (PHEV) | BiK depends on CO2 emissions and electric range | Can be efficient, but less simple than a pure EV |
Petrol Company Car | BiK based mainly on CO2 emissions | Often significantly higher employee tax cost |
Diesel Company Car | BiK based on CO2 emissions, with potential diesel supplement | Often among the highest BiK outcomes |
A Simple BiK Comparison
The difference becomes striking when comparing two cars with the exact same list price:
Parameter | Fully Electric Car | Petrol or Diesel Car |
P11D Value | £45,000 | £45,000 |
Illustrative BiK Rate | 4% | 30% |
Taxable Benefit | £1,800 | £13,500 |
Annual Tax for 40% Taxpayer | £720 | £5,400 |
Note: This is an illustrative comparison. Actual petrol and diesel BiK rates depend on the vehicle’s specific emissions and whether the diesel supplement applies.
2. How EV Salary Sacrifice Works
An EV salary sacrifice scheme allows an employee to give up part of their gross salary in exchange for a non-cash benefit—in this case, the use of an electric company car.
The employer typically leases the vehicle, provides it to the employee, and deducts an agreed amount from gross salary before PAYE and employee National Insurance Contributions (NIC) are calculated.
For qualifying low-emission company cars, including fully electric cars, the normal company car BiK rules apply rather than the harsher Optional Remuneration Arrangements (OpRA) rules that affect many other benefits.
That is why EV salary sacrifice remains so attractive: the employee gives up taxable salary, but the taxable company car benefit is calculated at a low BiK percentage.
Employee Tax and National Insurance Effects
For the employee, the main savings come from:
Saving Income Tax on the sacrificed salary.
Saving Employee Class 1 NIC on the sacrificed salary.
The employee then pays Income Tax on the company car BiK value. There is no employee National Insurance charge on the car benefit itself.
Employee Item | Effect of EV Salary Sacrifice |
Gross Salary | Reduced by the agreed sacrifice amount |
PAYE Income Tax | Usually reduced because taxable cash pay falls |
Employee Class 1 NIC | Usually reduced because NICable cash pay falls |
Company Car BiK | Taxable benefit added through payroll or P11D reporting |
Net Benefit | Depends on tax band, vehicle cost, BiK rate, and lease terms |
Employer Tax and National Insurance Effects
Employers also need to model the figures carefully.
The employer saves secondary Class 1 National Insurance on the sacrificed salary. However, the employer normally pays Class 1A National Insurance on the taxable BiK value of the company car.
The employer may also obtain corporation tax relief for lease rentals, subject to normal statutory rules. VAT recovery depends on the lease structure and private use position, so it requires a separate review.
Employer Item | Typical Treatment |
Salary Sacrifice Deduction | Reduces salary subject to employer Class 1 NIC |
Company Car BiK | Subject to employer Class 1A NIC |
Lease Rentals | Usually deductible for corporation tax, subject to rules |
VAT on Lease Rentals | Often partly recoverable where there is private use |
Admin & Payroll | Requires accurate documentation and real-time reporting |
3. Why Personal Tax Thresholds Matter
Salary sacrifice is not just a car benefit decision—it directly interacts with personal tax thresholds. For 2026/27 planning, employers and employees should pay close attention to the higher-rate threshold and the personal allowance taper.
The £50,270 Higher-Rate Threshold
Under current UK tax bands, higher-rate tax starts above £50,270 for most employees in England, Wales, and Northern Ireland (Scotland has separate Income Tax bands and rates).
A salary sacrifice arrangement reduces taxable cash salary. That can bring a portion of income back below the higher-rate threshold, replacing 40% income tax on that cash with tax on the low company car benefit value instead.
The £100,000 to £125,140 Personal Allowance Taper
The personal allowance is gradually withdrawn once adjusted net income exceeds £100,000. The allowance is reduced by £1 for every £2 of income above that level, and it is fully lost at £125,140. This creates an effective marginal tax rate of up to 60%.
EV salary sacrifice can help reduce adjusted net income below £100,000 because the employee gives up gross salary. While the company car benefit is still taxable and counted toward overall income, the low 4% BiK rate often delivers significant net tax savings.
Item | Without EV Salary Sacrifice | With EV Salary Sacrifice |
Gross Salary | £110,000 | £100,000 |
Salary Sacrificed | £0 | £10,000 |
EV Taxable BiK | £0 | £1,800 |
Broad Taxable Position | £110,000 | £101,800 |
Personal Allowance Taper Impact | Significant reduction | Substantially reduced |
Note: Final numbers vary based on pension contributions, charitable donations, bonuses, and regional tax variations.
4. Designing an EV Salary Sacrifice Scheme Properly
A salary sacrifice scheme must be more than a simple payroll deduction—HMRC expects a genuine, legally binding contractual change.
Key Design & Policy Considerations:
Employment Contract Wording: Ensure formal variations to terms and conditions are documented in writing before the sacrifice takes effect.
National Minimum Wage (NMW): The sacrificed salary must never reduce an employee’s cash pay below statutory NMW rates.
Pay Definitions: Clarify how salary sacrifice affects overtime rates, bonuses, redundancy calculations, and pensionable pay.
Statutory Benefits: Model the impact on income-related statutory payments, including maternity, paternity, adoption, and statutory sick pay.
Early Termination Safeguards: Draft clear rules regarding early exit fees if an employee resigns, is made redundant, or goes on extended leave.
5. Practical Action Steps for Employers
Review Workforce Eligibility: Verify which employees can participate without breaching National Minimum Wage rules.
Model Savings by Salary Band: Run separate scenarios for basic-rate, higher-rate, and additional-rate taxpayers to show realistic net outcomes.
Confirm Lease and Insurance Terms: Build in early termination protections or contingency reserves to manage employee turnover risks.
Establish Charging Rules: Set explicit rules for home, workplace, and public charging reimbursements before rollout.
Update Payroll Systems: Ensure car benefit values are correctly payrolled or logged for year-end P11D reporting.
Communicate Net Value: Provide clear net cost comparisons showing employees how salary sacrifice compares to personal leasing.
6. Employer Tax Treatment for EV Charging Infrastructure
Charging infrastructure is an essential component of an EV strategy. A tax-efficient car scheme can fail commercially if employees struggle to charge their vehicles efficiently.
Capital Allowances for Workplace Charge Points
Qualifying expenditure on new and unused electric vehicle charging equipment may be eligible for a 100% First Year Allowance (FYA). This allows businesses to deduct the full qualifying cost from taxable profits in the year of purchase.
Infrastructure Cost | Possible Tax Treatment |
New Workplace EV Chargers | Potential 100% First Year Allowance |
Direct Electrical Works | May qualify depending on installation requirements |
General Site Upgrades | Requires separate review (may fall under general plant/machinery) |
Repairs and Maintenance | Treated as revenue expenditure in the period incurred |
Software & Payment Systems | Treatment depends on contract terms and asset classification |
Tip: Request itemized invoices from installers. A single bundled invoice combining hardware, civil works, and grid connection costs makes it harder to support a First Year Allowance claim during an HMRC review.
Workplace, Home, and Public Charging Rules
Workplace Charging: Where an employer provides electricity through workplace chargers for employees using company EVs, no separate fuel benefit charge arises. Unlike petrol or diesel, electricity is not treated as "fuel" for benefit purposes.
Home Charging & Installation: Employers must decide whether to pay for domestic charge point installations, reimburse domestic electricity costs, or cover public charging costs. The exact tax outcome depends on vehicle ownership (company car vs. personal car) and whether payments cover private or business mileage.
7. Advisory Electric Rates and Business Mileage
HMRC publishes Advisory Electric Rates (AER) to cover business travel in electric company cars:
Mileage Situation | Typical Tax Approach |
Company EV Business Mileage | Employer reimburses using the HMRC Advisory Electric Rate |
Company EV Private Mileage Repayment | Employee repays private mileage using the Advisory Electric Rate |
Employee-Owned EV Business Mileage | Standard Approved Mileage Allowance Payments (AMAP) apply |
Actual Charging Cost Reimbursement | Allowed if supported by receipts and detailed business/private logs |
Note: HMRC updates advisory fuel and electric rates quarterly. Employers must ensure payroll teams use current published rates for reimbursements.
8. P11D Reporting and Class 1A National Insurance
Electric company cars remain reportable taxable benefits unless they are payrolled in real time through PAYE.
Non-Payrolled Benefits: Reported on form P11D after the end of the tax year. The employer submits form P11D(b) and pays Class 1A National Insurance on the taxable BiK value.
Payrolled Benefits: Income Tax is collected via PAYE during the tax year. However, employers must still submit form P11D(b) to calculate and settle Class 1A NIC.
Essential Records to Maintain:
Vehicle make, model, fuel type, and registration date
Full P11D list price (including factory options and delivery)
Employee capital contributions (if any)
Dates when the vehicle was unavailable for use
Business vs. private mileage logs and reimbursement calculations
9. Commercial Strategy for 2026/27
The best EV schemes balance tax efficiency, cost control, and practical usability. A low BiK rate is a major advantage, but it should not obscure operational risks like rising lease costs, insurance premiums, or early termination liabilities.
Before locking in an EV fleet policy, address these five core questions:
Strategy Question | Commercial Significance |
1. Which vehicles qualify? | Controls lease costs and fleet emissions profiles |
2. Who is eligible to join? | Protects National Minimum Wage compliance and equity |
3. How is charging funded? | Prevents payroll, expense reimbursement, and tax errors |
4. What happens on exit? | Manages early termination fees if an employee leaves |
5. How are benefits reported? | Minimizes HMRC compliance errors and audit risks |
For directors and owner-managed businesses, compare the salary sacrifice option directly against personal ownership, mileage claims, or purchasing the vehicle outright through the business.
10. A 2026/27 Action Checklist
Before launching or updating an EV company car policy:
[ ] Apply 2026/27 BiK Rates: Factor the 4% zero-emission rate into all fleet and payroll calculations.
[ ] Run Comprehensive Cost Comparisons: Compare EVs against internal combustion options including lease, tax, fuel/charging, and NIC costs.
[ ] Model Salary Sacrifice Impact: Assess employee outcomes across basic, higher, and additional tax bands.
[ ] Audit NMW Compliance: Ensure proposed salary reductions leave cash pay safely above legal minimums.
[ ] Review Infrastructure Reliefs: Identify qualifying charge point costs for 100% First Year Allowance claims.
[ ] Publish a Clear Charging Policy: Define explicit reimbursement rules for workplace, home, and public charging.
[ ] Maintain Mileage Logs: Track business travel accurately and apply current HMRC Advisory Rates.
[ ] Establish Reporting Workflows: Ensure vehicle updates, availability dates, and contributions flow smoothly into payroll.
Speak to Red Parrot Accounting
Red Parrot Accounting advises UK businesses on corporate car taxation, EV salary sacrifice design, payroll compliance, and capital allowance claims.
If you are reviewing your 2026/27 fleet strategy, Contact Us today. A structured review ensures your EV scheme reduces tax risk, maximizes employee value, and delivers clear financial benefits before leases or infrastructure commitments are locked in.
Professional Disclaimer: This article is for general informational purposes only and does not constitute formal tax, legal, accounting, or financial advice. UK tax rules are complex and subject to frequent change. Specific outcomes depend on individual circumstances, including vehicle specifications, employee earnings, charging setups, and corporate structure.
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