Over half a million U.S. businesses trust Paychex to provide payroll, HR, and benefits outsourcing. As a leading payroll provider, we offer the experience, services, and support you need to focus on one thing, running your business. From calculating payroll and filing tax payments to administering retirement plans and workers' compensation, Paychex gives its clients relief from administrative hassles so they can focus on their bottom line. Outsourcing reduces the complexity and risk of running your own payroll, while helping ensure greater accuracy, with up-to-date tax rates and regulatory information that can be lacking in a software solution.