Political developments aren't the only thing affecting confidence right now, Ranchhod said.
"The past few months have also seen mortgage rates pushing down and a related second wind in the housing market. We've also continued to see positive conditions in some key sectors of the economy, like the hospitality sector," it said.
Looking into the detail of what's behind the lift in consumer confidence, Westpac said households are feeling more optimistic about the outlook for their own financial situation over the coming year.
"They have also become more upbeat about the economy's longer-term trajectory more generally," it said.
The lift in confidence was widespread across geographic regions and household groups.
The survey was conduted from March 1 to March 15 and had a sample szie of 1,552.