Paychex, Inc. (PAYX) Stock Analysis

Paychex served approximately 800,000 clients and their employees across the U.S. and parts of Europe as of May 31, 2025, delivering HCM technology through three platforms — SurePayroll for small businesses, Paychex Flex for small and medium-sized businesses, and Paycor, added via the April 2025 acquisition, for larger businesses with more complex needs. Client retention ran 82% to 83% of the beginning client base in fiscal 2025, and more than 50% of revenue came from solutions other than payroll processing.

Paychex earns revenue from payroll processing, HCM software subscriptions, HR outsourcing through its ASO and PEO offerings, insurance brokerage, retirement-plan administration, and funding solutions such as accounts-receivable purchasing through Paychex Advance and Alterna Capital Solutions, plus interest income earned on client funds held before remittance to tax authorities and employees. More than half of new payroll clients come from referral sources such as CPAs, benefit brokers, and banks, supplemented by a long-standing partnership with the AICPA as its preferred payroll provider through September 2027. In the PEO business, Paychex acts as co-employer and assumes the risk and reward of certain workers' compensation and health insurance offerings for worksite employees, making health and workers' compensation claims trends a direct cost driver rather than a pass-through expense. Compensation-related expenses accounted for approximately 55% of total expenses in fiscal 2025, reflecting the labor-intensive nature of the roughly 250 compliance professionals and 650-plus HR business professionals supporting clients.