The 2016 election threw up a surprise knife-edge result.
It's possible that both major parties could be heading for 72 seats each, with several electorates still in doubt as counting continues.
Around 6% of votes in Australia are informal.
Here are five of the closest races in Australia right now, some with less than 100 votes between the candidates.
These are the seats which will determine the direction of the country for the next 3 years.
Chisholm, Victoria - Liberal Ahead by 0.1% (66 votes)
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Forde QLD - Labor ahead by 0.1% (149 votes)

Source: ABC Australia
Gilmore, NSW - Liberal ahead by 0.2% (405 votes)

Source: ABC Australia
Hindmarsh, SA - Labor ahead by 0.3% (432 votes)

Source: ABC Australia
Dunkley, Victoria - Liberal ahead by 0.3% (438 Votes)

Source: ABC Australia