The St. Clair County RESA's financial information support group provides training and support to K-12 districts for PowerSchool's Business Plus application.
The FIS system provides a tightly integrated suite of applications including general ledger, accounts payable, purchasing, work order budgeting, stores inventory, fixed assets, accounts receivable, payroll and human resources.
The FIS department provides support to all St. Clair County districts, Croswell-Lexington Public School, three Oakland County School Districts, and two public academies and charter schools.

PowerSchool is the provider of the RESA’s financial information system software.
The Business Plus software consists of several financial modules which include: payroll, accounts payable, accounts receivable, inventory, fixed assets, general ledger, budgeting, human resource, and purchasing.