Kiwibank is looking to take on its Australian rivals - and they're looking to reveal how many of their savers are missing out on interest on their 'bonus saver' accounts.
Bonus saver accounts are those where the highest rate of interest is only available if a saver complies with certain requirements like making a deposit each month and not making any withdrawals.
Kiwibank CEO Steve Jurkovich says many savers don't understand how these arrangements work, and the 'complexity' of banking has made it tough for people to understand.
"The real story here is, of course, that life happens. And so, you think you're going to be able to put that money away, you think you're not going to have to touch it - and then, surprise, surprise, something happens and you do need to touch it."
LISTEN ABOVE

Katherine Rich: BusinessNZ CEO on the impact NZ First's proposed tax cut for small and medium businesses could have
09:03

Kerre Woodham: Are these election promises worth it to you?
04:37

Campbell Parker: DairyNZ CEO on Fonterra's positive annual result
02:16