Postal vote applications are now closed.
Once you have submitted your application for a postal vote, the AEC will send your ballot paper to the postal address you have provided.
The AEC will start mailing voting papers to postal voters when nominations for candidates have been declared and ballot papers are available.
Ballot papers must be completed and witnessed on or before by-election day, and posted back to the AEC as soon as possible.
You only have 13 days after the by-election for your ballot papers to be received by the AEC.
In accordance with s.193 of the Commonwealth Electoral Act 1918, an authorised witness for postal voting may be:
If you are unable to find one of these people, please see the information in your postal voting guide for further instructions.
Please note: A person who is a candidate for the 2018 Mayo by-election cannot be an authorised witness.
If you are a registered general postal voter, you will automatically receive a postal vote pack in the mail.
If you are registered as a silent elector, and you are not a general postal voter, you can complete a postal vote application or vote in person at an early voting centre or on by-election day.