Wtf?When you go to the post office so long as all your paperwork's in order (mot, v5 and insurance it starts the very same day)
Pretty sure you can get tax whenever. The thing is no matter when you get the tax it always starts from the beginning of the month. So if you went to get it today it would start from the beginning of June. You definitely don't have to wait until July to get tax. I mean if you don't want to pay for tax from the beginning of June then yeah you have no choice but to wait, but you can definitely get tax now if you want it.
Dcock you are correct as you said back dated to 30/5/13 or wait & tax on or after 1st July.
The reason they say the left is so that the traf warden doesn't have to step off the pavement/onto the road to read