The Commonwealth Bank is in negotiation with the NSW Government to allow customers to use its tap-and-go payment cards and smartphone apps to pay for transport.

Kelly Bayer Rosmarin, group executive of institutional banking and markets for CBA, said the bank hoped customers could use existing payments systems rather than an Opal card to pay for transport.

CBA CEO Ian Narev has been holding talks with NSW Transport Minister Gladys Berejiklian. Credit:James Alcock

"We've been working closely with the Department of Transport and our vision is that you can use your ordinary credit card including a PayTag to walk through the gate and there will be no need for additional infrastructure or for the Government to issue cards or tickets - you can use your everyday card and wallets," said Bayer Rosmarin.

Bank chief executive Ian Narev said he had met with NSW Transport Minister Gladys Berejiklian on Monday night.