Prime Minister Theresa May will ask MPs to give her more time to secure changes to the controversial part of her Brexit deal – the Northern Irish backstop.
Mrs May is due to report back to MPs this week, after trying to persuade the EU to make last-minute changes.
According to the BBC’s Iain Watson, the PM will promise Parliament another vote on other Brexit options if a deal is still not ready by the end of February.
Labour wants to hold Mrs May to her word and make sure the vote is held.
The shadow Brexit secretary, Sir Keir Starmer, has said Labour has drafted an amendment which, if passed this week, would guarantee a vote by the end of the month.
He accused the prime minister of “running down the clock” so that Parliament will only have a choice between her Brexit deal, and a no-deal exit.
There are fewer than 50 days until Brexit. The law is already in place which means the UK will leave the EU on 29 March 2019.
Mrs May’s Brexit deal – which she spent months negotiating and had agreed with the EU – covers the terms of the UK’s divorce and the framework of future relations.
But it was rejected by the UK Parliament and if it is not approved by Brexit day on 29 March, the default position would be a no-deal Brexit.
Last month, Parliament voted in favour of an amendment that supported most of the PM’s deal but called for backstop – which is a last-resort option to prevent a hard border in Ireland – to be replaced with “alternative arrangements”. The prime minister is now in talks with Brussels to seek these changes to the backstop.