I have a part time self employed job which involves some driving. Which I account for in my tax return. I don't use an accountant, as the sums involved in my business are quite modest. And until now, very easy to account for.
Had a petrol car, and it was very easy to account for fuel expenses - Add up receipts and apportion business/personal use and there's my expenditure.
Now I have an EV, and I'm scratching my head. Because it's now just added to my electrical bill.
This has two complications.
1. The car's app does not accurately track the number of Kilowatts used to charge it. I charged it there last week from 30 to 95%. This charging session is not shown on the app. So I can't rely on that. It's not a smart charger. So I've no data from that.
2. The electricity price is different at different times of the day. I don't always charge it overnight.
I'm thinking the solution would be to use the car's odometer, and the published efficiency figures to get a rough estimate of KWs used.
Deduct public charging, which I calculate separately, and is much more straightforward.
Then multiply the KWs by the average electricity unit price across the course of the day? And appotion business/personal use as before.
Would that be more or less acceptable to revenue? Has there been any guidance on this?