Paychex offers a defensive, cash-rich HCM compounder with Paycor and WISE upside, but leverage, float-rate sensitivity, and a premium 25.98x P/E temper the near-term risk/reward.
Overview
Paychex is a recurring-revenue HCM provider serving approximately 840,000 clients and paying one out of every 11 U.S. private-sector workers. Its Paychex Flex platform combines payroll, tax filing, time and attendance, HR, benefits, insurance, and retirement services, while its PEO model gives SMBs access to compliance support and institutional-grade benefits. **The core investment case is a highly defensive, high-margin cash engine with retention above 90% and a large underpenetrated market.** The Paycor acquisition, completed April 14, 2025 for approximately $4.1 billion, added 49,000 mid-market clients and 2.7 million employees; first-year cumulative synergies exceeded $100 million. FY26 revenue rose 17% to $6.512 billion, adjusted operating margin reached 43.2%, adjusted EPS rose 11% to $5.51, and free cash flow increased 36% to $2.3 billion. Fiscal 2027 guidance calls for revenue growth of 5.0%-6.0%, adjusted margin near 44.0%, and adjusted EPS growth of 7.0%-9.0%, partly offset by lower float income. At approximately $126.77 and 25.98x trailing earnings, valuation is premium but supported by 45% ROE, recurring cash flow, WISE AI monetization, Paycor cross-selling, and margin expansion catalysts.