Political leaders have made their final pitches to Eden-Monaro's voters, each insisting their candidate is the best to help the community recover.
The vast electorate has suffered from drought, bushfires and the coronavirus recession.
Labor has accused the government of talking big, especially about the bushfire recovery, but having poor follow-through when it comes to delivering what people need.
"This electorate doesn't need someone who will just sit there and give a tick to the government, this electorate needs someone who'll speak up for them," Opposition Leader Anthony Albanese said in the coastal town of Narooma on Friday.
"We've been focused on the needs of the people of Eden-Monaro, we'll continue to be so after polls close at six o'clock, when parliament resumes in August, when the budget comes down in October, throughout next year."
Labor candidate Kristy McBain, a former mayor of Bega, rose to prominence advocating for her community during the summer's bushfire crisis.
"I need to get over the line here so that I can amplify the voices of the people that matter right now and that's the people that are feeling left behind and forgotten in Eden-Monaro," she said.
But Prime Minister Scott Morrison said the delivery of help to people in the region really needed a voice in his government.
"We really need people with boots on the ground as part of my government to ensure that we're delivering rather than sniping from the sidelines," he told the Sounds of the Mountains radio station on Friday.
"I need my Liberal candidate to be the member for Eden-Monaro so we can make this rebuilding dream a reality."
Liberal candidate Fiona Kotvojs defended her own home near Cobargo from bushfires in January.
Saturday's by-election was triggered when respected Labor member Mike Kelly retired for health reasons.
Dr Kotvojs ran against him in the 2019 general election, wiping two points off his margin to come in just 1685 votes behind.
Both Labor and Liberals anticipate another tight race this time around.
Ms McBain has history on her side though, with it being a century since a party in government won a seat off the opposition at a by-election.
More than 53,600 of the 114,000 voters in the electorate have either already cast their ballots or intend to mail one.
The counting of votes is expected to take longer than usual due to coronavirus safety measures at polling places and the counting centre, although the Australian Electoral Commission has promised to do its best to get an indicative result on Saturday night.
Australian Associated Press