The Government is considering granting the right to vote to 16 and 17-year-olds and permanent residents as part of its move to reform the country's electoral laws.
Voters could also be given more time to enrol after an election is called and the possibility of enrolment on election day has also been floated.
Rules which allow parties to choose how retiring senators are replaced could also be changed.
The proposals have been put forward in the Government's green paper, Strengthening Australia's democracy, which mulls several changes to laws governing elections.
The paper says there are arguments in favour of allowing younger voters and permanent residents the right to vote, including the fact that many teens over 16 are already paying taxes, but it also notes that only very few countries allow those under 18 to vote.