Informal voting in Australia is a sometimes controversial aspect of the electoral system. Rules differ between the House of Representatives and the Senate, sometimes causing confusion.
- What Is An Informal Vote? – an explanation of House and Senate informal votes.
- Ballot Paper Formality Guidelines – the AEC’s 2015 booklet on formality guidelines. This is the definitive guide.
- What Is A Donkey Vote?
- Are donkey votes informal? – a 2013 post debunking popular myths about donkey votes.
House of Representatives Informal Votes
- Informal Voting Statistics Since 1983 – table showing the national and state-by-state informal voting percentages at every federal election since 1983.
- Enrolment, Voter Turnout and Informal Votes 1901-98 – table showing House enrolment, turnout and informality rates.
Categories of Informal Votes
- Informal Voting Declines In 2016 Federal Election
- Analysis of 2007 Federal Election Informal Votes – AEC Research Paper (PDF).
- Analysis of 2004 Federal Election Informal Votes – AEC Research Papers (PDF).
- Categories of Informal Voting 1987 – an interesting set of statistics showing how informal voters spoiled their ballot papers.
Senate Informal Votes
- Informal Vote Declines In Federal Election; Sydney Again Records Highest Rates July 10, 2016
- How Does The Electoral Act Define Informal Votes? September 15, 2015
- Ballot Paper Formality Guidelines – AEC September 15, 2015
- Electoral Pocketbook – 2015 February 16, 2015
- Federal Election Results 1901-2014 July 17, 2014
- What Is An Informal Vote? September 5, 2013
- What Happens To Donkey Votes? September 4, 2013
- Informal Voting In The 2007 Federal Election April 21, 2009
- Informal Voting In The 2004 Federal Election October 15, 2005
- Electoral Support For Non-English Speakers And Those With Low Levels Of Literacy July 27, 2002
- AEC Electoral Newsfile: Guide To 1998 Federal Election Results December 10, 1998
- Categories Of Informal Voting – 1987 June 1, 1988