Bank of Ireland says it has rectified the issue which affected some payments to customers.
In a statement, the bank said all customer accounts impacted by the delay have been credited.
The bank apologised for any inconvenience caused by the delay.
Some customers experienced delays with payments this morning, although it is understood social welfare recipients were not affected by the issue.
The bank said no fees will be applied to customers who missed direct debit and standing order payments as a result of the delay.
