E-invoicing in Hungary

Hungary does not currently impose a broad B2B e-invoicing mandate, but it is one of Europe’s most demanding real-time invoice reporting jurisdictions. The NAV Online Invoicing System gives the tax authority detailed invoice data, even where the commercial invoice is not exchanged as a structured e-invoice.
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For businesses, Hungary is a reminder that e-invoicing and digital tax reporting are related but not identical. A company may not be required to exchange structured B2B e-invoices, yet still face strict real-time data-reporting obligations.

At a glance

B2B e-invoicing
No broad domestic B2B mandate
B2G e-invoicing
Public sector must receive EN-compliant e-invoices; no broad supplier mandate
Real-time reporting
Mandatory NAV Online Invoicing reporting for broad invoice flows
Sector-specific rule
Mandatory e-invoicing for certain electricity and natural gas supplies to non-private individuals from 1 Jul 2025
Core platform
NAV Online Invoicing System
Strategic direction
Strong tax reporting now; future ViDA alignment for EU flows

What the mandate means

Hungarian businesses must report invoice data to NAV in real time or near real time for broad transaction categories. This is not the same as requiring every business invoice to be exchanged through an e-invoicing network, but it creates similar data-quality pressure.
The sector-specific energy e-invoicing obligation adds another compliance layer for businesses in electricity and natural gas supply. Companies in those sectors should confirm format, delivery and customer-scope requirements separately.
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Timeline

2018: NAV Online Invoicing reporting began

2021: Real-time reporting expanded to broader transaction categories

1 Jul 2025: Sector-specific e-invoicing applies to certain electricity and natural gas supplies

2030: ViDA cross-border digital reporting begins at EU level

What businesses should do now

Businesses should prioritise NAV reporting accuracy, invoice data completeness and reconciliation between ERP invoices and reported data.

Companies in energy supply should separately assess whether the 2025 e-invoicing rule applies to their products and customers.

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Need to prepare for e-invoicing mandates across Europe and the UAE?

Need to prepare for e-invoicing mandates across Europe and the UAE? Our compliance-ready e-invoicing solution helps you connect to local platforms, validate invoice data, automate exchange and keep pace with changing mandates from a single, scalable architecture.

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Frequently asked questions

Not in the broad B2B sense. Hungary is primarily a real-time invoice reporting country, with targeted e-invoicing obligations in specific sectors.

In practice, yes. Even if the commercial invoice is not exchanged as a structured e-invoice, the reported data must be accurate, complete and consistent.

Sources:

European Commission: eInvoicing in Hungary

Hungarian Tax Authority: NAV Online Invoice

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