Members of the Financial Services Union (FSU) in AIB have voted to accept pay proposals that include a 3.5% increase.
It will be split between a 1.75% fixed increase and a 1.75% performance-related increase.
The deal also includes a tax-free €1,000 voucher.
The proposals will see eligible staff receiving a minimum payment of €1,500, with the bank's lowest paid workers being prioritised.
"We are pleased to confirm that FSU members have supported and passed the negotiated pay proposals in the ballot that closed last Friday," said Gareth Murphy, Head of Industrial Relations and Campaigns with the FSU.
"In addition, we have put a strong case to the bank for a full variable pay payout of 5% this year as we believe the Bank's performance is strong," Mr Murphy said.
"We expect an announcement on this later in the week," he added.
Announcing the deal last month, AIB said the proposals also include a commitment to ongoing change and co-operation during the period of the agreement.
"AIB's success is the consequence of the great work and dedication of all our colleagues," the bank's Chief People Officer David McCormack said at the time.
"That's why we're pleased to propose a pay agreement which recognises their important and valuable contribution," he said.
