Theresa May has said the vote – on her deal with Brussels or no deal at all – will be decided on.
Leaving the vote until then will give Britain just days to prepare for the impact of crashing out of the European Union without a deal in place if the Prime Minister’s efforts fail.
Politicians have accused Theresa May of “running down the clock” and being “reckless” over the so-called “meaningful vote”.
The Brexit date is set for March 29 but the Prime Minister has so far failed to impress MPs with her deal and has been sent back to Brussels to renegotiate.
The Conservative Party leader attempted to reassure critics on Sunday, insisting talks are still “ongoing” and are “positive”.
Speaking as she travelled to Sharm el-Sheikh for a summit between EU and Arab league leaders, Mrs May said her team will be in Brussels this week.
“As a result of that, we won’t bring a meaningful vote to Parliament this week, but we will ensure that that happens by 12 March,” she added.
However, the reaction has been furious.
Shadow Brexit secretary Keir Starmer said May’s delay was “the height of irresponsibility”.
He added: “Theresa May is recklessly running down the clock in a desperate attempt to force MPs to choose between her deal and no deal. Parliament cannot stand by and allow this to happen.”
SNP Westminster leader, Ian Blackford, tweeted: “We will be two weeks from leaving the EU with citizens and businesses not knowing what to prepare for. It is the height of irresponsibility to allow the clock to run down to such an extent.”
Director general of the British Chambers of Commerce, Adam Marshall, wrote: “A parliamentary vote on March 12th for something that’s meant to take effect on March 29th.
“17 days’ notice for businesses, employees, investors and communities on what may be the biggest economic and trading change they face in a generation. Unbelievable. #Brexit.”
On the other side of the divorce table Theresa May has been criticised for the delay.
European Parliament Brexit co-ordinator, Guy Verhofstadt said Mrs May is “kicking the can down the road”.
Mrs May said negotiations are focusing in part on the so-called ‘Irish backstop’ after parliament told her to return and renegotiate what she was offering.
Mrs May said the government is “talking to the EU about various ways in which we can find a resolution to the issue that Parliament raised”.
However, the Prime Minister faces a major hurdle this week which could delay the split altogether.
An amendment, tabled by Labour’s Yvette Cooper and Conservative Sir Oliver Letwin could give Parliament the power to delay Brexit if no deal is drawn up by mid-March.
Mrs May responded by saying: “There comes a point where we need to make that decision.”
Another amendment has been tabled for Wednesday by Labour backbenchers Peter Kyle and Phil Wilson, calling for Mrs May’s deal to be put to a public vote.