The head of Retail NZ has stopped short of saying consumers are being ripped off by fees for PayWave and online card payments

The Commerce Commission's consulting on fee capping regulation that could save Kiwis 250-million dollars a year.

Retail NZ Chief Executive Carolyn Young says fees passed to consumers are not always as accurately reflected as they could be, but that's not necessarily the intent.

She says part of it is through a lack of knowledge in a really complicated system, so simplifying that will be easier for everyone.