Prime Minister Scott Morrison still isn't giving any hints about when he will call the election, despite delivering his much-vaunted surplus budget.
There is speculation Mr Morrison will visit the Governor-General sometime between Friday and Sunday to ask for parliament to be dissolved and an election called.
But the Liberal leader was keeping mum on Wednesday, saying there were three days available to him - May 11, 18 or 25.
"They're the options we have and when I decide to go out to the governor-general, then people will see that car drive out to Yarralumla," he told Nine's Today show.
Asked if he had made a decision on a date, Mr Morrison said: "No. Not yet."
There has to be a minimum of 33 days campaigning before voters head to the polls.
According to ABC election analyst Antony Green, the government needs to hold a standard general election before May 18 - meaning the prime minister will have to call it by April 15.
