Motorists have been warned over a common paperwork mistake which could lead to them missing out on money.
Essentially, when you sell a car you are able to have any money already paid on road tax refunded, however to do so you must first update your log book (V5C).
If you don't update your log book, you'll have to pay road tax on a car that you aren't using and will also have to pay for your new car too.
