Australian Prime Minister Malcolm Turnbull on Sunday used "Brexit" shock waves to urge voters to return his government with a majority at a July 2 election, arguing only stable government can deliver jobs, economic growth and tough border controls.

After a tight eight-week campaign, Turnbull's Liberal Party-led coalition is facing a strong challenge from the opposition Labor Party and popular independents who could win enough seats to hold the balance of power in the upper house Senate.

The poll comes as Australia attempts to rebalance its economy away from a once-in-a-generation mining boom stymied by tumbling commodities prices.