Who are the candidates? Andy Burnham, Yvette Cooper, Jeremy Corbyn, Liz Kendall
Dates: Ballot papers were sent out on 14 August; voting can take place by post or online. They must be returned by 10 September. The result is on 12 September
Who can vote? All party members, registered supporters and affiliated supporters – including those joining via a union
What is the voting system? The Alternative Vote system is being used so voters are asked to rank candidates in order of preference
How does it work? If no candidate gets 50% of all votes cast, the candidate in fourth place is eliminated. Their second preference votes are then redistributed among the remaining three. If there is still no winner, the third place candidate is eliminated with their second preferences (or third in the case of votes transferred from the fourth place candidates) redistributed. It is then a head-to-head between the last two candidates
