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National Tax and Customs Administration
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
Bulk invoicing
Authorized Invoicing / Self-invoicing
Online payment solutions
Postal services
Integrations / API
API interface (Számla Agent)
Banking integrations (autokassza)
Small Taxpayer Enterprises (Autokata)
Online Accounting Software (SMARTBooks)
Cost register system (QUiCK)
Warehouse and Stockpile management (Innonest)
English FAQ
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Knowledge base
National Tax and Customs Administration
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
Bulk invoicing
Authorized Invoicing / Self-invoicing
Online payment solutions
Postal services
Integrations / API
API interface (Számla Agent)
Banking integrations (autokassza)
Small Taxpayer Enterprises (Autokata)
Online Accounting Software (SMARTBooks)
Cost register system (QUiCK)
Warehouse and Stockpile management (Innonest)
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
Technical guide for NAV online invoicing data registration
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
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