The services will be provided by JPMorgan's Boston-based Fund Services unit, which is part of the firm's global integrated fund accounting platform with locations in the U.S., Europe and Asia.
"We are delighted to be working with MFS, a firm that prides itself on leadership and innovation," said Michael Clark, head of JPMorgan Worldwide Securities Services. "JPMorgan Fund Services will take care of their back office needs, so MFS can concentrate on what they do best -- bringing value to their advisors and fund shareholders."