Prime Minister Jacinda Ardern is calling banks' profits across the entire sector wrong, but she's being told to turn her words into action and launch an inquiry.
National wants the decisions of the Reserve Bank investigated to find whether its monetary policy contributed to financial institutions recording bumper bottom lines.
Westpac this week reported its annual earnings had climbed to just over $1b.
We approached Westpac, the ANZ, Kiwibank and the New Zealand Bankers Association to speak to us this morning, all declined.
Sam Stubbs, the managing director of Kiwisaver provider Simplicity, has long argued for an inquiry into bank profiteering.
He spoke to Corin Dann.