After each federal election the AEC sends letters to people who appear to have failed to cast a vote. If you’ve received a letter, it outlines your option to either pay the $20 penalty or provide a valid reason.
The Electoral Commissioner must determine how many House of Representatives seats each state and territory will have at the next federal election.
This happens one year after a new House of Representatives first meets – due sometime in July/August 2020. The AEC will not provide any hypotheses in advance.