The Conservatives are on track to slump to just 53 seats.
The Liberal Democrats are on course to be just behind the Tories on 50 MPs, according to the Savanta and Electoral Calculus polling analysis, leaving them in touching distance of becoming the official opposition.
Labour is forecast to have 516 seats and an estimated House of Commons majority of 382 – double that won by Sir Tony Blair in 1997 – as Sir Keir Starmer becomes prime minister.
Meanwhile Reform, despite a surge in the polls, is predicted to get zero seats.
Tory wipeout: Our analysis
The Cabinet | The Tory big beasts set to lose seats in election bloodbath
Analysis | Kemi Badenoch is the future of the Tory party… no one else survives
Search tool | Will your MP lose their seat? Use our search tool
Pollster’s view | The Tories are teetering on the brink of extinction