Web platform with Checkbox support: aspects of fiscal accounting, reporting, and interaction with tax authorities

The article examines the process of developing a web platform for an online store with functionality for online fiscalisation of receipts. The implementation of such solutions is becoming increasingly relevant in the context of business digital transformation and legislative changes requiring entrepreneurs to fiscalise online sales. The main focus is on the use of software-based cash register systems, particularly the Checkbox service, to automate reporting and interaction with tax authorities. Key advantages of software-based cash register systems are highlighted, including flexibility, resource savings, and the ability to integrate via REST API. The article discusses the methodology of platform development, including the integration of fiscalisation services, automated generation of X and Z reports, and the use of modern web technologies. The study provides an analysis of existing fiscalisation services, system architecture considerations, and practical implementation aspects such as route organization, business logic, and shopping cart optimization. The proposed approaches help minimize administrative costs, enhance reporting accuracy, and adapt the system to legislative changes.