This document is a guide that outlines specific questions to consider when vetting Human Resource Information System (HRIS) vendors. It categorizes the questions into several key areas, including customer support, pricing, system capabilities, and data security. The section on customer support addresses the availability of support, response times, and training resources offered by the vendor. The pricing section includes inquiries about training costs, system features, and any additional fees associated with the HRIS. Furthermore, the guide details the functionalities expected from the HRIS, such as employee onboarding, benefits administration, payroll processing, and performance management. It also emphasizes the importance of understanding the integration capabilities of the HRIS with third-party applications and the measures in place for data security and compliance with regulations. This comprehensive set of questions aims to assist organizations in evaluating HRIS solutions effectively.