Peter smith wrote:
Righto I bought a car for a friend who has a provisional license. I have
insurance for my car, and to driver other cars with owners permission.

The car tax runs out tomorow, can I tax the car with my insurance
document. It has a new MOT. The old owner did not have the renewal
letter (lost it) and my friends insurance was done this morning online
and will take up a maximum of 14 days to arrive.

Nope, and you couldn't even with the old renewal.

As it runs out tomorow and is parked on a public street I'm in a bit of
a bind.

Move it off road if you can. Don't SORN it. Tax it asap with your
friends insurance.