i bought a car beginning of last month from a trader, no tax. i signed the log book but as yet haven't had a chance to post it, the car is still in my garage - i've not used it yet.

Only now i'm going away for a bit so not going to get a chance to tax it/drive it until november. Am i going to recieve a fine or anything as technically i've owned it since september and haven't had it taxed/sorned?