One of the election's closest races will go to a partial recount while a second tally gets under way in another knife-edge electorate.
Almost a month after the federal election, officials will launch a partial recount in the inner-city Melbourne seat of Goldstein after a full distribution put Liberal Tim Wilson ahead of incumbent independent Zoe Daniel by 260 votes.
From Wednesday, all first-preference ballots for either candidate will be re-examined alongside all informal votes.
Ms Daniel on Saturday submitted a request for a full recount, which the Australian Electoral Commission labelled as "instructive but not determinative" before granting a partial recount.
The electoral commission on Monday noted the distribution of preferences - the fourth count of ballots undertaken - found some votes had been entered into the system incorrectly.
The commission maintained its process was "doing its job" as a thorough, closely scrutinised preference distribution and check.
"It is not uncommon to identify discrepancies in the complex and detailed distribution of preferences process, indeed this is one of the benefits," the commission said in a statement.
The partial recount is expected to take up to four days.
Ms Daniel thanked her scrutineers and electoral commission staff while her opponent, Mr Wilson, said he remained "very relaxed" about the count.
Elsewhere in Melbourne, a nail-biting four-way contest in the seat of Calwell has been called for Labor by the ABC's election analyst Antony Green.
In the north Sydney electorate of Bradfield, where just eight votes separated Liberal candidate Gisele Kapterian from independent challenger Nicolette Boele, a full recount is under way.
But political wonks and candidates needn't hold their breath, with the process to take as long as two weeks - allowing for a new count of all first-preference votes, a re-examination of all informal votes, a complete recount of the two-candidate preferred tally and a full distribution of preferences.
Scrutineers could also extend the timeline, as the tightness of the count fuels closer examination of ballots.
Ms Boele is contesting Bradfield for a second time with former Liberal minister Paul Fletcher having retired after holding the seat for 16 years.
Any lower house contest that ends with a margin fewer than 100 votes automatically undergoes a recount.
Should election officials return with similar results, Bradfield could go to a by-election or its result could be disputed in court.
