this is where the new tax system simply doesnt work-it will show taxed on the system if checked[providing the seller has it taxed] untill the dvla process the documents...when they process they backdate the time the vehicle is not taxed
to the date of sale...so if checked at the time it will be fine but do it a few weeks later and it wont,,,
they have also been sending letters out to new keepers demanding backtax even though they have sorned on purchase-its a mistake dvla told me-the system cant cope-i have had two such letters scince the new laws