Westpac and ANZ have followed the Commonwealth Bank in axing fees for customers of other institutions using their ATMs to withdraw cash.

"Australians have complained for some time about being charged fees for using another bank's ATM," CBA's group executive, retail banking services, Matt Comyn, said in a statement on Sunday.

"As Australia's largest bank, with one of the largest branch and ATM networks, we think this change will benefit many Australians and hopefully demonstrate our willingness to listen and act on customer feedback."

By lunchtime on Sunday, Westpac had announced it was following suit. The bank's group executive for consumer relations, George Frazis, said non-Westpac Group customers would no longer be charged an ATM withdrawal fee when they used one of Westpac Group's 2925 ATMs.