The Prime Minister expects it will be business as usual when she faces new National Party leader Judith Collins for the first time during Parliament's Question Time on Tuesday.
Jacinda Ardern says she's "expecting some questions" as is usual, but hasn't changed her approach for the new leader since she's faced three others already as Prime Minister.
"Ultimately, this is leader number four so we've had a bit of a change-up in the House before - I'll treat it no differently," she said on Monday.
Ardern has faced former Opposition leaders Todd Muller, Simon Bridges and former Prime Minister Bill English during her time as leader.
"Question Time is the Opposition's chance to ask me questions. I go down with the exact same approach regardless of whomever the leader is on the opposite bench."
Ardern had previously appeared unphased by Collins' rise to leadership, saying last week she was spending more time thinking about New Zealand's COVID-19 response rather than who was leading National.
"I absolutely accept that there is an election this year and there is no avoiding that. But at the moment, really it's taking a bare minimum of my thinking because we are still in the middle of a global pandemic."
She also said she hadn't given a lot of time to studying each Opposition leader and their tactics.
"I have to admit that I don't really sit down and analyse them all. My focus, my time, my energy is going into our COVID response and that's as it should be."