^Labor member for Florey, Frances Bedford, resigned from the Labor Party on 28 March 2017 and became an independent, after Jack Snelling was endorsed by the party for pre-selection in the run-up to the 2018 election.[1]
^Liberal member for Mount Gambier, Troy Bell, resigned from the Liberal Party on 17 August 2017 and became an independent, due to criminal financial allegations.[2]
^Liberal member for Waite, former party leader Martin Hamilton-Smith, resigned from the Liberal Party on 27 May 2014 and became an independent.
^Liberal member for Morphett, Duncan McFetridge, resigned from the Liberal Party in May 2014 and became an independent, after losing party endorsement for pre-selection in the run-up to the 2018 election.