Fleet Audit Express

From 1 September 2025, HMRC split the EV mileage rate: 8p/mile for home charging and 14p/mile for public charging. If your policy still assumes one flat rate, it’s already misaligned. (GOV.UK)

Why it matters (fast maths): Two drivers each do 1,000 business miles.

• Driver A charges 80% at home → £92 under the new split (vs £80 at 8p flat).
• Driver B charges 80% in public → £128 (vs £80 at 8p flat).

Same mileage, £36 delta between colleagues — and your average cost per 1,000 miles can jump from £80 to ~£110 (+37.5%) if the real-world split is ~50/50.

Our take: that’s a fairness issue and a margin leak.

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1) The 8p/14p split is just the tip of the iceberg

Facts shaping your TCO right now:

• VED changed on 1 April 2025 — EVs are no longer exempt; most will pay the standard rate after year one. Budgeting that as “£0” is now wrong. (GOV.UK)
• VAT is 5% at home vs 20% on public charging — an embedded structural cost difference that directly affects reimbursements and recovery. (RSM UK)
• Infrastructure is uneven and delayed in places, skewing your actual home/public mix and making historical assumptions unsafe. (UK Parliament Committees)

Our take: If you don’t re‑calculate against this new policy + infrastructure reality, you risk underpaying some drivers, overpaying others, and mis‑investing in EVs, chargers, or tariffs.

2) Why an audit — not a spreadsheet — fixes it

Our take: Excel patch‑ups break under today’s moving parts (split AER, VAT differential, VED, charging mix, tariff drift). You need an external, data‑driven view.

What Fleet Audit Express delivers in 10 days:

• ✅ True TCO re‑calc per model/driver, with live HMRC inputs (8p/14p) and VED updates. (GOV.UK)
• ✅ Home vs public charging map at driver level (from expenses, telematics, and charger data) to spot unfairness and compliance risk. (Our take)
• ✅ Policy update pack: recommended reimbursement rules, VAT logic (home/public), private‑use repayments, and governance. (RSM UK)
• ✅ Cost levers most teams miss: tariff optimisation, charger placement, and mix rebalancing based on local infrastructure constraints. (UK Parliament Committees)

3) From “policy gap” to “cost opportunity”

Our take (benchmarks): By correcting charging‑mix assumptions and aligning reimbursements with the new HMRC split, fleets uncovered ~5–12% savings without cutting mileage — simply by removing structural leakage and friction.

👉 Don’t let outdated policies eat your margins.

Book your Fleet Audit Express today — first results in 10 days.

Sources

• HMRC Advisory Electricity Rate split: 8p home / 14p public (effective 1 Sept 2025). (GOV.UK)
• VAT: 5% domestic electricity vs 20% public charging. (RSM UK)
• VED changes for EVs (from 1 Apr 2025). (GOV.UK)
• Infrastructure rollout: delays/unevenness affecting planning. (UK Parliament Committees)