There's growing debate mortgage advisors need more regulation - alongside a Commerce Commission bid to make it easier to take out a home loan.

Discussions at a banking conference centred on concerns brokers don't encourage mortgage rate competition.

Simplicity CEO, Sam Stubbs, says they provide a valuable service, but commissions are a worry.

"What CommComm are concerned about is - are they actually acting in the best interests of the clients, or are they acting in the best interests of themselves to try and maximise their commission?"

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