How should employers assess an EV salary sacrifice scheme?

Assess EV salary sacrifice as an employment and payroll arrangement, alongside the charging your staff need. Fully electric company cars have a 4% benefit-in-kind percentage in 2026/27 [S2]. Check employee agreement, minimum wage, employer costs and early-return liabilities before launch. Model workplace charging separately under fully funded, part funded and self funded terms. Checked October 2026.

Last checked 17 October 2026

How does an EV salary sacrifice scheme work for employers?

Your employee agrees to give up contractual cash pay in return for a non-cash benefit. HMRC requires agreement to the employment-contract change [S1]. Ask your accountant and solicitor to review payroll and employment documents before offering the arrangement. This page explains the assessment process, not a finance recommendation.

Treat the car arrangement and your charging installation as separate decisions. Survey staff demand, attendance and access to charging before ordering equipment. Ask how employees without a suitable home charging location would use the scheme. Do not assume every participant needs a dedicated workplace socket.

What could the employer cost be after salary sacrifice?

Ask payroll for a complete employer calculation. HMRC’s 2026/27 tables set the standard employer contribution rate and Class 1A benefits rate at 15% [S3]. Actual effects depend on payroll circumstances. Check with your accountant, including the effect of any Employment Allowance, before describing a reduction as cash retained.

An illustration, not a quote: assume annual car costs of £7,200 matched by a £7,200 salary reduction, a taxable car list price of £40,000 and £180 additional annual administration. Assume the full salary reduction would otherwise attract employer National Insurance at 15%, with no allowance offset. The pure-electric percentage is 4% [S2].

This assumes the car cost includes everything the employer pays except the stated administration and benefit charge. It excludes charging, VAT effects, changes to pensions, absence and termination costs. A real result could be higher, lower or negative. Ask payroll to show those items and each year’s benefit percentage. Refer staff to the BIK explanation for the distinction between benefit value and tax.

What happens when employees leave or their pay changes?

Ask the scheme supplier for its actual early-return, redundancy, absence and transfer provisions. Have your solicitor review who bears each cost and any exclusions. Test the proposal against your own workforce scenarios before presenting a monthly figure as the employee’s complete commitment.

Keep a process for reviewing changed hours and pay. Salary sacrifice must preserve the relevant minimum wage; HMRC also explains that statutory payments and benefits can be affected [S1]. State whether pension calculations use reference pay or reduced cash pay. Check the pension scheme’s rules and explain the agreed basis to staff.

For qualifying low-emission cars, the optional remuneration exception preserves the normal car benefit valuation [S4]. Ask payroll to document the rule it applies. Check with your accountant before launching employee examples.

What could staff chargers earn under each funding model?

Workplace charging can support participation, but it needs its own business case. A distribution network operator (DNO) manages the local electricity network; ask the installer to confirm supply requirements, bay layout, accessibility and the council planning position before fixing costs. Have your solicitor check property consent.

The following is an illustration, not a quote. All charging costs, use and commercial terms are assumptions, not market figures. Kilowatts (kW) measure power; kilowatt-hours (kWh) measure energy. Sessions are site totals.

The provider funds the rest of the part funded capital and receives the remaining surplus. Effective electricity cost includes an assumed allowance for charging losses. No grants or tax relief are deducted.

Mid-case energy = 4 × 10 × 220 = 8,800 kWh. Surplus = 8,800 × (£0.40 − £0.25) − £500 = £820. Fully funded income = £3,520 × 10% = £352; part funded net = £820 × 60% = £492. Simple ROI = annual host net ÷ host capital × 100; payback = host capital ÷ annual host net. For example, mid-case self funded payback = £4,000–£6,000 ÷ £820 = 4.9–7.3 years.

Fully funded has no host-capital payback in this example. At low use, provider operating surplus would not cover the assumed host payment; a provider might decline these terms. Long paybacks are arithmetic outputs, not assumptions about equipment life. Finance, tax, replacement, rent and rates are excluded. Have your accountant review the actual model and use the business-case template.

How should you set workplace charging access and prices?

Agree eligibility, bay sharing, charging hours and who handles faults. Test the arrangements with site management before announcing a staff benefit. Keep the car’s payroll deductions separate from charging payments. Use the workplace charging policy to prepare your operating brief.

The Workplace Charging Scheme’s current cap is £500 per eligible socket [S5]. Ask the installer to confirm eligibility before changing the capital assumptions. Check the separate staff charging tax rules with your accountant before subsidising use.

What should you do next?

Obtain a payroll assessment and reviewed employee terms, then commission a site survey using actual attendance and charging needs. Ask for comparable fully funded, part funded and self funded proposals.

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