
Hungary
NAV Online Invoicing System (Online Szamla) - real-time invoice data reporting
Hungary does not yet require structured e-invoices between businesses. Instead, VAT-registered taxpayers must send invoice data to the tax authority NAV in real time through the Online Szamla interface, whatever the format of the invoice itself. A separate mandate for structured XML e-invoices, based on EN 16931, is in a concept and consultation stage as part of Hungary's plan to apply the EU VAT in the Digital Age (ViDA) package, and no domestic go-live date had been set in the official documents reviewed.
Key Dates
Who is in scope
All domestic taxable persons that issue invoices with Hungarian VAT must report the invoice data to NAV, including invoices to consumers, with limited exceptions. The planned e-invoice mandate would cover domestic B2B, intra-EU B2B and B2G, while paper invoices would stay possible for consumers and non-EU buyers.
Process
Invoicing program creates the invoice and its XML data → software sends the data to NAV through the Online Szamla API using a technical user → NAV validates the data and returns a status → invoice is delivered to the buyer in any agreed format → NAV uses the data for VAT risk analysis
Stay informed on Hungary
Get notified when mandates change or new practical insights are added.
