Bank of Ireland has set aside €25m to compensate 600 customers who were wrongly moved off their tracker mortgage.
Some 600 customers were moved to a less favourable rate by the Bank.
Chief Executive Richie Boucher says they have been moved back to their tracker rate and the company is now negotiating a settlement for homeowners with the Central Bank.
Last year AIB set aside €180m, for its 3,000 affected homeowners.
Mr Boucher says he expects it will cost Bank of Ireland in the region of €25m, however they will not know the final bill until negotiations with the Central Bank have concluded: "There were 600 customers where we should have provided them with a tracker, and that tracker has been restored for the customers still with us.
"We are part of an overall central bank, a programme and part of that programme will be working to redress for customers."