Malcolm Turnbull will appeal to voters to choose stability in the wake of global uncertainty as he launches his pitch for a second term in office.
Hundreds of Liberal and National party supporters - including former Liberal leaders John Howard and Tony Abbott - will gather in the western Sydney seat of Reid on Sunday for the official launch, less than a week out from polling day.
Mr Turnbull will be the first incumbent Liberal prime minister to launch a campaign since Mr Howard in 2007.
The prime minister's key theme will be the continuation of a stable government delivering on jobs and growth and securing the borders from people-smugglers versus the "chaos and dysfunction" of a Labor-Green-independent alliance.
He'll also seek to disarm Labor's campaign on Medicare, which the opposition claims is under threat from co-payments and outsourcing.
It's expected the coalition, which has largely based its campaign on an economic message, will get a boost from voters responding to Britain's shock decision on Friday to exit the European Union.
Strategists believe undecided voters will start tuning in to the campaign in large numbers over the coming week.
Labor leader Bill Shorten, who launched his campaign in Sydney last Sunday, has challenged Mr Turnbull to explain how a $50 billion corporate tax cut is a good idea.
"Malcolm Turnbull has got bad policies before the launch - I suspect he will still have the same bad policies after the launch."
Labor will hold a second launch in Brisbane on Sunday which it says will double as a 'save Medicare rally'.
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