Leader of the House David Lidington has told the Commons that MPs will be asked to approve a motion for an early general election.
The motion will be put “under the terms of the Fixed Term Parliaments Act 2011”, Mr Lidington said.
Shadow Commons leader Valerie Vaz said Mr Lidington’s statement explained why the government had not revealed the date of the next Queen’s Speech.
On Tuesday morning the prime minister announced plans to call an election, to take place on 8 June.
The vote in the Commons to approve the election plan needs two thirds of MPs to vote in favour. The debate will start after Prime Minister’s Questions.