"In addition, some NetBank scheduled payments due today have been delayed and will be completed later today. Please consider this when you do your banking.

"Delayed scheduled transactions will appear under 'Future Transactions' when you logon to NetBank until processing is complete."

Australia Post also reported issues with the CBA, stating that EFTPOS was also being affected.

"Only CBA customers banking transactions, deposit/withdrawal/balance enquiries, & EFTPOS are being impacted," Australia Post advised.

It has since advised that all banking and EFPTPOS services have returned to normal from yesterday's "glitches".