Pricing. Neither publishes prices. Paycom puts a one-time implementation fee in its quote; Workday sells deployment as separate fixed-fee Launch packages, from Workday or its partners.
Capabilities. Both cover payroll, time, HR, benefits and talent. Workday adds workforce planning, HR service delivery and multi-entity global operations; Paycom adds employee-run paycheck checks and daily pay.
Security. Paycom lists five ISO certifications, including 27001, and SOC 1, 2 and 3 reports. Workday states SOC 2 Type 2, ISO 27001, GDPR and HIPAA compliance.
Fit and support. Paycom serves every company size with a dedicated specialist at no extra charge. Workday targets mid-market and enterprise organizations, so it is less suited to small businesses.