Software Development for International Tax and Regulatory Compliance

SPG partnered with a client to develop a microservice for managing invoice and document registration with tax authorities or their partners across various countries (such as ZATCA). The project involved creating a core abstraction and interface for data transmission while regional teams implemented specific communication protocols. The system had to accommodate diverse interfaces, such as SOAP and HTTP APIs, and comply with unique regulatory requirements, including:

Document chaining in Saudi Arabia
Sequential numbering in Argentina

SPG’s solution supported multiple countries, ensuring secure and compliant document processing across different regulatory environments.

A company acquired by a global tax compliance leader had an electronic invoicing and fiscal reporting product built on Adobe Flex, which required modernisation due to the discontinuation of Flash support. SPG developed the Invoice Monitor product as a micro frontend within the client’s global UI framework. This new solution provided:

Dynamic and configurable UI elements based on specific customer needs
Real-time adjustments without additional development efforts

Utilising React/Redux and Single-SPA, SPG ensured the product met evolving government standards and business requirements, significantly improving the user experience and functionality.

A U.S.-based company specialising in taxation services needed to update its algorithms for processing tax jurisdiction codes based on provided addresses. Their existing solution was too slow to meet high demand and future business growth plans. SPG was tasked with developing a new solution that would operate hundreds to thousands of times faster than the existing system. By leveraging advanced algorithms and optimised processing techniques, SPG delivered a highly efficient solution that significantly improved the speed and accuracy of tax jurisdiction code processing, enabling the client to serve their expanding customer base better.