MPs have approved prime minister Theresa May's plan for a snap general election on June 8.
The proposal to hold snap elections was announced by Prime Minister Theresa May following a Cabinet meeting on Tuesday.
Britain's next national election is now scheduled for 2020, a year after the scheduled completion of two years of European Union exit talks.
May will put forward such a motion at 13:00 p.m (BST) today once Prime Minister's Questions is over, with the vote due around 14.30 p.m (BST).
"It was with reluctance that I decided the country needs this election, but it is with strong conviction that I say it is necessary to secure the strong and stable leadership the country needs to see us through Brexit and beyond", May said.
This decision goes against previous statements that the Prime Minister made on the issue.
"If you look at the timetable, had the election been in 2020 we would have been coming up to the most crucial part of the negotiations, at the end of the negotiations, in what would be starting to be the run-up to a general election".
"What do we know that the leader of the Labour Party, the leader of the Liberal Democrats and the leader of the Scottish nationalists have in common?" she asked parliament.
MPs will be voting later on Wednesday on whether to trigger an early election on 8 June.
Sterling rose to a four-month high against the USA dollar after the market bet that May would strengthen her parliamentary majority, which Deutsche Bank said would be a "game-changer" for the pound.
"The election gives the British people the chance to change direction".
"This election is about her Government's failure to rebuild the economy and living standards for the majority".
"And a month ago she told her official spokesman to rule out an early election and that wasn't true either, was it?"
May's Conservative Party holds a slim majority in Parliament's lower House of Commons and May is banking on gaining a greater share of the seats to make Brexit a smoother transition for her government. The survey showed the Tories on 44% with Labour trailing on just 23%.
It is also likely to record a low turnout, given growing weariness over another round of polls.
Liberal Democrat leader Tim Farron said that, for Ms May, calling the election is "the political equivalent of taking candy from a baby". The SNP MPs abstained in the vote.
Senior lecturer in politics at the University of York, Dr. Sofia Vasilopoulou, said: "It is a good opportunity to put Conservative party divisions on ice in the interest of winning the general election". She said she was confident of reaching a deal in that time frame.
He said May simply sensed the chance to secure a majority of 100 MPs or more.
Ms May, who has described herself as "not a showy politician", said she would rather talk directly to voters.