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Online data reporting
  • Registration / Login / First steps
    • Initial account settings, first steps
  • National Tax and Customs Administration
    • Online data reporting
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    • Service package variations
  • Settings / Functions / Mobile
    • Authorized Invoicing / Self-invoicing
    • Online payment solutions
  • Integrations / API
    • API interface (Számla Agent)
    • Banking integrations (autokassza)
    • Small Taxpayer Enterprises (Autokata)
  • English FAQ
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      1. Knowledge base
      2. National Tax and Customs Administration
      3. Online data reporting
      • Registration / Login / First steps
        • Initial account settings, first steps
      • National Tax and Customs Administration
        • Online data reporting
      • Subscription / Service packages
        • Service package variations
      • Settings / Functions / Mobile
        • Authorized Invoicing / Self-invoicing
        • Online payment solutions
      • Integrations / API
        • API interface (Számla Agent)
        • Banking integrations (autokassza)
        • Small Taxpayer Enterprises (Autokata)
      • English FAQ

      National Tax and Customs Administration

      Everything you need to know about the NAV online data reporting, regulatory compliance and our Számlaverzum (NAV invoice synchronisation) feature.

      Online data reporting

      • I have registered in the NAV Online Invoice (NAV Online Számla) system and entered the codes in my Számlázz.hu account, but I see that they are incorrect when I try to save the data. What shall I do?
      • Does Számlázz.hu have an English version?
      • How do I know that my invoicing account is ready for NAV online data reporting?
      • NAV/NTCA online invoice data disclosure
      • Technical guide for NAV online invoicing data registration
      See more
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