Chancellor Rishi Sunak will later unveil a plan aimed at minimising further unemployment as stricter Covid-19 restrictions come into force.
The new measures are expected to replace the furlough scheme, which is set to expire next month.
Pubs and restaurants have warned they will be hit hard by new restrictions.
From Thursday, hospitality venues in England will have to shut at 22:00 BST as the government tries to control the spread of the coronavirus.
Scotland is introducing similar measures, with pubs and restaurants having to close at 22:00 BST from Friday, while in Wales restrictions are limited to stopping alcohol sales at 22:00 from Thursday.
"Lots of businesses will not survive this and we are going to see more and more people lose their jobs," said Kate Nicholls, chief executive of trade body UKHospitality.
At around 11:45, the chancellor is expected to address the Commons to unveil plans that the government hopes will stem those job losses.
