After 3 years it’s not unreasonable to have accumulated some 30,000 miles. If they’ve no means to assess and collect outside the MOT, that could be a rather instant and sizeable £900 bill on the car. Given many Scheme customers aren’t working, a sudden unexpected bill of that scale could cause problems. There really should be some kind of payment process that allows those on a limited income to pay an affordable amount each month and then an adjustment to that based on each opportunity to get the real miles.
Monthly subscription based, similar to a pre paid credit card.
That said we have been paying fuel duty long before EV’s became popular and other than every moaning ?(rightly so) it had to be paid, so we got use to it and paying it every time we filled up.
Perhaps a god way is to work out how many miles you can travel, for an equivalent litre of fuel and put to one side 52.95 pence, it would have cost in fuel duty, every time you travel that distance.