If you have received a notice for not voting at a federal election, by-election or referendum and wish to pay the $20 administrative penalty, you can do so online using the Government EasyPay service.
If you are found to have voted, or you provide a valid and sufficient reason for failing to vote, or pay the $20 administrative penalty within the prescribed time, the matter will be finalised and you will receive no further correspondence from the AEC regarding your apparent failure to vote.