Prime Minister Malcolm Turnbull says there is "absolutely no chance" of the coalition accepting a deal with the Greens to form a minority government.
If tight opinion polls are any indication, it is possible the July 2 election could result in a hung parliament as it did in 2010.
"I can rule out any collaboration with the Greens to form a government, but I can tell you Labor won't and Labor can't," Mr Turnbull told reporters in Brisbane on Tuesday.
