BMO Harris Bank has extended its agreement with technology partner Fidelity National Information Services (FIS) for five years.

The deal includes multiple back-end and customer-facing business areas within BMO, including core processing, mobile financial services, online bill payment, trust services and EFT processing, FIS said Monday.

The $92.2 billion-asset BMO, a unit of Bank of Montreal, is also a member of the NYCE Payments Network. 

"The relationship between FIS and BMO Harris extends back nearly 20 years," Gary Norcross, president and chief operating officer of FIS, said in a news release. "A relationship of this length and scope is a testament to FIS’ ability to deliver the banking and payments solutions and expertise that enables BMO Harris Bank to operate more efficiently. There are numerous players in the financial technology space and we are proud that BMO Harris Bank continues to rely on FIS to keep the bank innovative and competitive so they remain at the forefront of the financial services industry."

BMO uses an FIS core banking platform to process more than 3.6 million accounts. Through a new maintenance and managed services agreement, FIS will provide more back-end processing and system management services.