The issue of solid waste management is paramount in urban and rural areas worldwide. We propose an innovative waste management system leveraging IoT sensors, QR code technology, and advanced cybersecurity measures to enhance the efficiency and accountability of garbage collection processes. The system integrates a mobile application accessible by users and garbage collectors, each with specific role-based functionalities. QR codes displayed on each household’s door/dustbins are scanned by garbage collectors to confirm collection, triggering real-time notifications to users and administrators. Additionally, IoT sensors on public area dustbins detect when garbage is full and notify the admin to avoid overflow. A secure payment system facilitates fines for non-compliance with waste segregation rules, while various encryption algorithms ensure the secure transmission and storage of sensitive data. Moreover, a geotagging feature enables users to report environmental hazards, helping locate and address issues promptly. By optimizing waste collection and promoting compliance with segregation rules, this comprehensive approach contributes to a cleaner and more sustainable urban environment. The IntelliWaste system has the potential to revolutionize waste management by enhancing transparency, accountability, and efficiency in waste collection processes, supporting broader sustainability goals. Ultimately, the system serves as a scalable and adaptable solution, paving the way for smarter, more sustainable cities.