https://www.gov.uk/guidance/new-rule...om-autumn-2021
"If you passed your car driving test from 1 January 1997, you’ll be allowed to tow trailers up to 3,500kg MAM when the law changes.
DVLA will update your driving licence record to show that you’re allowed to tow trailers. You’ll get category BE added to your driving licence when you get a new photocard driving licence.
You do not need to contact DVLA for this to happen. It will be done automatically."
I don't have B+E at the moment. So all I need to do is weight for the law to change then boom! I have it, it seems when I renew my photocard licence.
Happy with that.