“There’s too much we have to get right, like what EU regulations we will follow or not.”
Pieter Cleppe, of the Open Europe think tank, claims another deadline will only “complicate” the already complex negotiations faced by both sides.
On the deadline, he said: “In theory it is possible to agree a deal by then but to set yet another deadline to reach a trade deal may further complicate matters.
“In any case, the EU is unlikely to agree to it. Moreover, given the intensity of trade between the EU and the UK and the fact that a lot of that trade happens under a mutually agreed regulatory framework, the future EU-UK relationship will be one of perpetual negotiation.
“The purpose will be to sort out what happens to market access when either of the sides changes its regulations.”
But he believes Mrs May will not need the guarantee because there are other methods that don’t require the help of Brussels to deliver.
BREXIT BOMBSHELL: UK to be locked in backstop – experts say trade deal deadline not viable – Express.co.uk