Customers may not have to pay as much for using auto teller machines (ATMs) that belong to banks other than their own under new rules that come into effect in October next year.
Under a Reserve Bank initiative to reform Australia's ATM system, banks will not be allowed to charge each other when non-customers make withdrawals from their ATMs.
Instead, a direct fee will be paid to the owner of the ATM, with all costs appearing on the screen and requiring approval from the customer.
But the chief executive of the Australian Bankers Association, David Bell, says there is no guarantee the new system will save customers money.
"I've got no idea as to what it means in terms of the level of fees," he said.
"That's something for individual institutions and ATM deployers to work out. You have to remember that banks only own half of the ATMs in Australia."
Mr Bell says the association's preference would have been to keep the current arrangement.
"But we accept that the Reserve Bank wants to make these changes," he said.
"We've been in discussions with them as have all other ATM providers."
Mr Bell says the Reserve Bank now has a responsibility to educate customers about exactly what the reform will mean.
"We think it's critical that before these changes are put in place the Reserve Bank, which is the initiator of these changes, should conduct a public education campaign to make sure people understand the implications of these changes," he said.