SMAN 2 Kotabumi is one of the top schools in North Lampung Kotabumi. As a top school, a good management is required in terms of data processing and accuracy. SMA N 2 Kotabumi has 78 teachers and staff Administration (TU) both PNS and non-PNS. To improve the performance of teachers and staff, a system of attendance and a valid salary calculation are required to avoid delays in information when needed. There is a problem on teacher attendance and salary calculation. Teacher and staffis must sign in attendant form. While, every month TU should recap the attendant file to make report to the inspectorate. In terms of teacher salary calculation, there are several error to calculate the salary cut which is different for each teacher or staff every month in the scope of the SMA N2 Kotabumi. Both of these problems can be solved by build a system that can process automatically.The purpose of this system is to facilitate the development of attendance data processing and calculating salaries of teachers and staff. Beside that, this system also facilitate the performance of the TU staff to do their work. The system is built by using SDLC (System Development Life Cycle) which consist of planning, analysis, design, implementation, testing and maintenance. Development of this system is using a system development tool, ie Data Flow Diagrams (DFD), Context Diagram, Entity Relationship Diagram (ERD) and Flowchart and web framework CodeIgniter PHP and HTML programming language and MySQL as the database.