A by-election will be held to elect an MP for Northcote on 9 June 2018.Voters who are overseas can vote from 23 May.

The Māori Electoral Option is an opportunity for anyone who is of New Zealand Māori descent and who is enrolled to vote to choose which electoral roll they want to be on – the General roll or the Māori roll.

The General Election will be held on 23 September 2017. Voters who are overseas can vote from 6 September to 23 September.