HU-R-001
Error Guide
🇭🇺 HU-R-001: Hungarian tax number required in Hungary
ErrorB2G MandatoryNeeds Input
Hungarian invoices must include adószám (tax number).
Quick Facts
Severity
Error (rejection)
Ruleset
nav
Mandate
B2G Only
Fix Type
Needs input
Why This Matters in Hungary
Hungary requires (B2G) e-invoicing using NAV XML 3.0, UBL 2.1, UN/CEFACT CII, Peppol BIS 3.0. Invoices with this error will be rejected. They cannot be processed for Hungary compliance.
How to Fix HU-R-001
- 1Get tax number11-digit Hungarian tax number
- 2Add to invoiceHU prefix + number
Hungary E-Invoicing Requirements
Phase
Status
Scope
RTIR (all invoices)
Live (Jul 2020)
All VAT-registered businesses — every invoice reported
NAV XML 3.0
Live (May 2025)
Version 3.0 mandatory (2.0 discontinued)
B2B e-invoicing (energy)
Live (Jul 2025)
Electricity and gas sectors
B2B e-invoicing (water)
Jan 2026
Water utilities
Full B2B mandate
2027+
Expected under ViDA
Common Causes
- •Missing tax number
- •Wrong format
Fix HU-R-001 automatically
Upload your invoice and let Invoice Navigator auto-remediate this error.