<h1>Streamline Your Tax Process with ACES: Register, File Returns, and Track Applications Online for Excise and Service Tax.</h1> ACES, or Automation of Central Excise and Service Tax, is a web-based application designed to streamline processes for Central Excise and Service Tax for both assessees and the department. It enables users to register, file returns, track applications, and receive updates online. The application is divided into two parts, catering separately to Central Excise and Service Tax, requiring separate registration for each. Users can register without a PAN number, although it is necessary for refund claims. The system includes features like a Learning Management Software for guidance and a Service Desk for assistance. Security measures include unique user IDs and passwords, with a session timeout of 30 minutes.