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E-invoicing in Hungary

Hungary doesn't currently mandate B2B e-invoicing, but businesses are subject to extensive real-time invoice reporting requirements through NAV.

Voluntary Not currently available

At a glance

B2B e-invoicing Voluntary
B2G e-invoicing No mandate
Infrastructure NAV Online Invoice/EN 16931
Next deadline 1 July 2030

No general B2B e-invoicing mandate currently applies. Real-time invoice data reporting to NAV is mandatory.

Key e-invoicing deadlines

1 July 2018
Completed

Real-time invoice reporting begins

Hungary introduces real-time invoice reporting through the NAV Online Invoice system, requiring invoice data within scope to be reported electronically to the Hungarian tax authority. 
1 January 2021
Completed

Real-time reporting scope expands

Hungary significantly expands its real-time invoice reporting requirements, bringing additional domestic and cross-border invoice transactions within the NAV Online Invoice reporting framework. 
1 July 2025
Completed

Sector-specific B2B e-invoicing begins

Electronic invoicing becomes mandatory for certain B2B supplies in the electricity and natural gas sectors. The requirement applies to relevant energy market participants but does not constitute a general B2B e-invoicing mandate across Hungary. 

Hungary has developed an extensive digital invoicing and tax reporting environment, centred around the National Tax and Customs Administration (NAV) and its Online Invoice system.

There is currently no general requirement for businesses to issue structured electronic invoices in domestic B2B transactions. However, invoice data falling within the Hungarian VAT reporting rules must be reported electronically to NAV, making automated invoice data exchange an important part of the country’s tax compliance framework.

Businesses issuing invoices that fall within the scope of Hungary’s VAT invoicing rules are generally required to report the relevant invoice data to NAV through the Online Invoice system.

The reporting requirement extends beyond domestic B2B transactions and covers a broad range of invoices. While businesses may use electronic invoicing voluntarily, the obligation to report invoice data to NAV should be distinguished from a requirement to exchange the invoice itself electronically.

Hungary requires invoice data covered by its VAT reporting rules to be transmitted electronically to NAV. For invoices generated by invoicing software, this reporting can be integrated directly into the invoicing process, enabling invoice information to be transmitted automatically.

Electronic invoicing itself remains generally voluntary for B2B transactions. Businesses choosing to exchange electronic invoices must nevertheless ensure that invoices comply with the applicable Hungarian VAT and invoicing requirements.

Hungary’s digital invoice reporting infrastructure is centred around NAV’s Online Invoice system, which receives invoice data electronically from businesses and invoicing systems.

Structured electronic invoices can also be used voluntarily between businesses. For public procurement, Hungarian public contracting authorities are required to be able to receive and process electronic invoices compliant with the European EN 16931 standard, although suppliers aren't generally required to issue them electronically.

iEDI does not currently offer country-specific e-invoicing support for Hungary.

iEDI supports structured electronic document exchange across a growing number of international markets and connects existing ERP and business systems without requiring businesses to replace their existing setup.

If your business operates in Hungary alongside other markets, contact us to discuss your international e-invoicing requirements and current coverage options.

Frequently asked questions

Is B2B e-invoicing mandatory in Hungary?
No. Hungary currently has no general mandate requiring structured electronic invoices for domestic B2B transactions. 
What is NAV Online Invoice?
NAV Online Invoice is Hungary's electronic invoice data reporting system. Businesses within scope must report required invoice information electronically to the Hungarian tax authority. 
Is invoice reporting the same as e-invoicing?
No. Hungary's mandatory electronic invoice data reporting should not be confused with a requirement to exchange the invoice itself as a structured electronic invoice. 
Can businesses voluntarily use e-invoicing in Hungary?
Yes. Businesses can use structured electronic invoicing voluntarily while continuing to meet Hungary's applicable VAT invoicing and NAV reporting requirements. 
Does iEDI support e-invoicing in Hungary?
iEDI does not currently offer country-specific e-invoicing support for Hungary. Contact us to discuss your international e-invoicing requirements and current coverage options. 
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Explore how iEDI supports electronic document exchange across markets and talk to us about your international e-invoicing requirements.