AIB posted a boost in its overall operating performance in the first three months of 2013.
The bank said that product repricing has helped boost its net interest margin in the first quarter.
Staff costs and other expenses have reduced, the company said.
And AIB said that 95pc of its non-core deleveraging for 2013, of €19.6bn, was completed in the first three months of the year.
The bank is set fair to meet its target of pre-provision operating profit this year.