The modernization and digitalization of the Hungarian toll system is a key step in the development of the country's infrastructure and the management of tax revenues. The project involves the collection, processing, and analysis of ticket validation and sensor data, which amounts to billions of records daily. Its aim is to establish a robust data management and reporting system that meets the requirements of the NAV and supports the auditing processes.

The EKÁER (Electronic Road Freight Control System) is a system introduced by the NAV (National Tax and Customs Administration) that serves to monitor and control road freight traffic. Its aim is to reduce fictitious invoicing and tax evasion, particularly during the transportation of high-value goods. The system allows the tax authority to carry out real-time checks on domestic and international freight shipments, contributing to the reduction of tax avoidance and the maintenance of market competition.

The Online Invoice system aims to reduce tax evasion and bring transparency to the economy by enabling real-time monitoring of invoicing for the National Tax and Customs Administration (NAV). It enhances risk analysis and increases VAT revenues. Automated data reporting reduces administrative burdens, creating a fairer market, while the system supports the receipt and verification of invoice data.

The visualization tool that assists the tax authority's work enables the effective exploration and analysis of complex relationships between taxpayers. This modern, graph-based solution utilizes Cytoscape technology and is accessible via a JavaScript-based web interface. The tool not only displays the relationships among taxpayers but also integrates with the e-invoice system, providing a more comprehensive view of taxpayer networks than ever before.

The National Tax and Customs Administration (NAV) implemented a significant technological upgrade in its data warehouse infrastructure by introducing the Exadata X7 platform. The project's goals included increasing data management capacity, optimizing performance, and ensuring regulatory compliance. With the Exadata X7, NAV can manage multiple petabytes of data more efficiently, reducing service times and consolidating data warehouse solutions operating on individual infrastructures.

The modernization of the National Tax and Customs Administration's (NAV) 20-year-old data warehouse was a complex and critical project that impacted the foundations of the institution's IT systems. The aim was to create an integrated and efficient system that meets the needs of a modern tax authority. Over the 2.5-year process, more than 100 experts worked on the project's success while ensuring the uninterrupted operation of NAV's daily services.