The Conservative Party have confirmed Theresa May, Michael Gove, Stephen Crabb, Liam Fox and Andrea Leadsom will contend the leadership of the party.
The chairman of the 1922 Committee, Graham Brady, confirmed the list of nominees after Boris Johnson announced his decision to stand down from a leadership bid.
Michael Gove has become the first of the Conservative leadership candidates to publish his tax returns during the campaign.
Theresa May has secured the backing of Philip Hammond in her bid to succeed David Cameron ahead of the first round of voting on Tuesday.
A poll in the Sun on Sunday suggests the home secretary is able to count on the backing of six out of 10 Conservative MPs.