Banks, especially big banks, can expect to have to fall in to line with international expectation that the most systemic hold yet more capital, Glenn Stevens, governor of the Reserve Bank of Australia, told the Financial Review.

"There's a lot of debate about whether they're there, or not quite there, but anyway they're going to have some more capital to try to be sure they're there," he said.

"There's no specific D-SIB (domestic systemically important banks) framework here for TLAC [or "total loss-absorbing capital"] but on past form people will at least think about it, and we will have to give thought to such issues ourselves in Australia, and everyone can see that," Stevens said.