Case Study: Comerica Bank achieves HR transformation and cost savings with ADP

Comerica Bank Transforming HR with a strategic business partner

Comerica Bank, a top-25 U.S. bank, was struggling with a failing HR vendor: recurring payroll errors (annual W-2c corrections), incorrect employee data, and an over-customized HR system that consumed HR leaders’ time and prevented the team from acting as strategic partners.

By moving to ADP’s Comprehensive Outsource Services and Recruiting Management, Comerica gained an integrated partner that functions as an extension of the HR team. The shift freed leaders to focus on transformation (from about 30 hours/week to roughly 10 hours/quarter), reduced the payroll team from six to four, cut overtime from ~$12–15K to ~$1K annually, improved recruiting data and time-to-fill (from nine to seven months for complex roles), and lowered PTO payouts through better reporting and controls.

Comerica Bank

Catherine Garrett

Senior Vice President of HR Operations, Technology, and Compliance