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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
- Login using DÁP (digital citizen) mobile application
- Technical guide for NAV online invoicing data registration
- Login with Ügyfélkapu+
- NAV/NTCA online invoice data disclosure
- Does Számlázz.hu have an English version?
- 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?
- How do I know that my invoicing account is ready for NAV online data reporting?