If you charge a company car at home on a Tesla Wall Connector, your employer can reimburse that electricity free of tax and National Insurance — as long as it is clear the electricity went into the company car and not into the house. ChargeReport reads the charging history straight from your Tesla account, with your permission and read-only. Every home session reaches your monthly statement with its start, duration and kWh. No second meter, no work on the charger, and the Tesla app stays exactly as it is.
Supported Tesla models
ChargeReport supports the following models of the Tesla range natively, with no extra hardware:
- Wall Connector
If your model is not listed but has an OCPP interface that lets you enter your own backend, it can still connect to us — our gateway speaks OCPP 1.6J and 2.0.1 and accepts connections encrypted via wss://. If you are unsure, see our setup guide for wallbox brands or get in touch before you sign up.
Connect your Tesla wallbox in 3 minutes
In the ChargeReport setup wizard, choose "Tesla Wall Connector" and click "Sign in with Tesla". You sign in with Tesla and approve access to the energy data — we do not request vehicle data or location. We then find the Wall Connector in your account and fetch its charging history: up to 30 days back the first time, then every three hours. Requirement: the Wall Connector is set up in the Tesla app. The connection is new; we look at the first ones personally.
What your employer can reimburse — and what they need from you
If you drive a company car in the UK, your employer can reimburse what it costs to charge it at home free of income tax and National Insurance — electricity is not treated as fuel for the car fuel benefit charge, so the exemption in s.239(2) ITEPA 2003 applies. HMRC attaches one condition to it: the employer has to be satisfied that the reimbursement is solely for the company car and not for the household. No particular meter or method is prescribed. ChargeReport reads every session from your Tesla charger and turns it into a monthly statement — each session with date, time and kWh, plus monthly totals — which evidences exactly the separation HMRC asks for, in a form payroll can file.
More on the legal side: Company car home charging in the UK: what your employer can reimburse tax-free
Charging in Ireland? The requirement is close to HMRC's, but Revenue also writes the record-keeping duty into its own guidance — and the charge point exemption there covers fully electric cars only. Company car home charging in Ireland
Tesla charging and your employer — who pays for the electricity?
Charging a company car at home is paid for by you first: it runs through your domestic electricity contract. Your employer can reimburse that amount without tax or National Insurance, but only for the electricity that went into the company car. That is the whole difficulty — a household meter cannot tell the car from the dishwasher, and an annual bill from your supplier cannot either. This is a different route from the 7p per mile advisory rate, which only ever covers business mileage and needs a mileage log rather than kWh. ChargeReport produces the evidence for the first route from the readings your Tesla charger already takes.
Common questions about Tesla & ChargeReport
Which Tesla charger is supported?+
The Tesla Wall Connector, as long as it is set up in the Tesla app. The connection runs through your Tesla account rather than the charger itself, so the charger only needs its usual internet connection.
Why not OCPP, like other chargers?+
As far as we know, the third-generation Wall Connector cannot be pointed at a third-party OCPP back office by its owner. The official route for third parties is Tesla's interface for energy products, and that is what we use.
What does ChargeReport read from my Tesla account?+
Only the Wall Connector's charging history: start, duration and energy per session. We do not request vehicle data, location or any commands to the car or the charger. You can revoke the access in your Tesla account at any time.
Do I need a separate meter for HMRC?+
No. The UK prescribes no measuring method. HMRC's condition (EIM23900) is that the employer is satisfied the reimbursement relates solely to the company car — how you show that is left open. Session-level records from the Wall Connector itself are one straightforward way.
What if a private car charges on the same unit?+
Tesla's charging history names neither the vehicle nor a card, so if several cars use the Wall Connector, ChargeReport cannot assign the sessions to the company car by itself. Talk to us before you pass such a statement to your employer.
Further reading
If you run a Tesla wallbox, these guides are worth a look:
- Company car home charging in the UK: what your employer can reimburse tax-free
- EV charging reimbursement: how it works
Next step
The first report is free. All you need is your number plate and access to your Tesla wallbox. Questions about the legal side? Our FAQ section covers the common ones, and the pricing page shows exactly what a report costs.