Context
In recent years, the Hungarian government has launched comprehensive digital and data-driven public administration reforms to reduce the shadow economy, improve tax collection efficiency, lower administrative burdens, and increase the digitisation of tax processes. This proposal presents three major innovations resulting from these measures.
The application introduces the e-receipt and e-cash register system, the Online Invoice system, and the eVAT system as an integrated reform portfolio rather than separate initiatives. Although each project generates significant value individually, their combined implementation has created a coherent digital taxation ecosystem.
The three systems constitute interconnected layers of a unified, transaction-based data infrastructure. The e-receipt and e-cash register system captures retail transactions in real time. The Online Invoice system extends real-time reporting to business-to-business and business-to-consumer transactions, providing structured and validated invoice-level data. Building on these sources, the eVAT system converts transaction-level information into automated VAT analytics and draft tax returns.
Together, these solutions ensure continuous digital data flow from the point of sale and invoice issuance to tax declaration and compliance. The integrated architecture enhances consistency, traceability, discrepancy detection, accurate risk assessment, and preventive intervention, while automated data transmission, pre-filled analytics, and validation mechanisms reduce manual work, errors, and administrative burdens for taxpayers.
Objectives
The project’s overarching objective is to establish a comprehensive, transaction-based digital tax ecosystem that addresses tax transparency, administrative burden, and compliance challenges through integrated technological solutions.
The e-receipt and e-cash register system aims to create a unified digital receipt ecosystem that reduces fiscal compliance costs for businesses, supports paperless and environmentally sustainable operations, increases tax transparency, enhances consumer experience through digital receipts, and enables real-time, data-driven decision-making for government.
The Online Invoice system was introduced to increase economic transparency and reduce tax fraud through near real-time access to invoice data. Invoice data reporting strengthens the tax authority’s risk analysis, control, enforcement, and criminal investigation capacities. It enhances compliance by allowing taxpayers to verify partner-reported data and prevent involvement in fraudulent chains. Government-level access to invoice data improves market monitoring and economic planning. The system also reduces administrative burdens, promotes digitalisation and e-invoicing, and supports effective budget revenue collection.
The eVAT system aims to implement a reliable, scalable, user-centric model that automates VAT return preparation based on transaction-level data. It provides a web interface for micro, small, and medium-sized enterprises and API/XML integration for larger taxpayers, while replacing the legacy form-based system and supporting upcoming regulatory reforms and VAT information exchange systems integration.
Implementation
The implementation combined legislative reform, central IT development, structured governance, and close stakeholder cooperation.
The e-receipt and e-cash register project was built on new legislation and a centrally developed digital infrastructure. An innovative model introduced both hardware-based and cloud-based e-cash registers capable of issuing electronic receipts. Implementation was carried out in cooperation with the tax authority, technology providers, and economic operators. Roll-out follows a gradual approach, with voluntary adoption preceding mandatory conversion. The system includes certified e-cash registers, customer mobile applications for downloading receipts, APIs and administrative interfaces, and a central receipt repository serving as the national e-receipt database.
The Online Invoice system required coordinated technical development by the tax authority as well as reporting entities, and a phased expansion strategy ensured preparedness. Invoice data can be submitted either manually via a web interface or automatically through API connections from invoicing software. Early consultation with market participants and software developers supported timely system upgrades. Continuous communication, public guidance, professional forums, and GitHub-based developer engagement facilitated compliance.
The eVAT system is implemented along structured pillars: institutional governance; programme delivery (technology, legal and process reform); stakeholder consultation; operations and service management; risk, compliance, security; and performance measurement through KPIs and benefits realisation.