The Office of Payroll Administration (OPA) was established by Executive Order No. 77 on June 29, 1984.
OPA was created to administer the functions related to payroll administration previously performed separately by the Department of Finance and the Office of the Comptroller. The creation of OPA centralized payroll functions and ensured uniform payroll procedures for the City of New York.
Since 2015, OPA has been the payroll operations division of FISA-OPA.