This study aimed to know the level of availability of management information systems (MIS) requirements (hardware, software, human, and organizational), levels, and their impact on employees’ performance in the Civil Service and Insurance Office in Taiz. Using an analytical descriptive approach, data were collected via questionnaires from all 200 office employees. A total of 159 responses were retrieved, with 109 analyzed using SPSS for descriptive analysis, simple regression, and multiple regression. Results revealed a generally moderate availability of MIS requirements, with human requirements being the most available, followed by organizational, hardware, and software requirements. The study found a positive impact of all four MIS requirements on employee performance. These findings highlight the importance of availability MIS requirements to enhance employee performance and provide insights for improving information systems in the government offices.