Analysis of Informal Voting, House of Representatives, 2010 Federal Election: Appendix A

Updated: 30 May 2013
Key formality requirements in Australian Lower Houses
Jurisdiction Legislature Preferential system used Minimum no. of preferences required to be shown Tick or cross acceptable as a first preference Provisions that could 'save' votes not marked in accordance with ballot paper instructions
Commonwealth House of Representatives Full preferential No. of candidates No One square (representing the last preference) may be left blank.
NSW Legislative Assembly Optional preferential 1 Yes Not applicable.
Vic. Legislative Assembly Full preferential No. of candidates Yes One square (representing the last preference) may be left blank.
Qld Legislative Assembly Optional preferential 1 Yes Not applicable.
WA Legislative Assembly Full preferential No. of candidates Not explicitly provided for One square (representing the last preference) may be left blank.
Ballot papers with certain non-consecutive preferences may be formal.
Votes will not necessarily be exhausted if a preference is repeated.
SA House of Assembly Full preferential No. of candidates Yes One square (representing the last preference) may be left blank.
Candidates may register a voting ticket. Ballot papers with only one preference, or a first preference and further consecutive preferences that are consistent with a candidate's registered voting ticket, will be taken to have been marked in accordance with the voting ticket.
Where a ballot paper has not been marked as required but the voter's intention is clear, the ballot paper is not informal and will be counted.
Tas. House of Assembly Partial preferential No. of vacancies No A ballot paper is not to be treated as informal if, in the opinion of the returning officer, the elector's intention is clearly indicated on the ballot paper.
ACT Legislative Assembly Partial preferential No. of vacancies (5 or 7) No A ballot paper is formal if it includes a unique first preference.
NT Legislative Assembly Full preferential No. of candidates No One square (representing the last preference) may be left blank.

Source: Australian Government 2009.