Employee Self-Service (ESS) is a system that allows employees to access and manage their personal and payroll information independently, without needing to go through HR or management. ESS platforms typically include features for updating contact details, reviewing pay stubs, submitting time-off requests, enrolling in benefits, and accessing company policies and documents. This system empowers employees to handle routine tasks on their own, saving time for both employees and HR staff, and improving overall efficiency in managing employee data and records. ESS tools often integrate with larger HRIS (Human Resource Information Systems) to streamline HR functions.