- Hungary’s NAV will change real-time reporting validations starting 15 September 2025.
- New WARN and ERROR rules will impact VAT compliance.
- Testing for new rules begins 1 September 2025.
- Three new WARN messages will be added.
- Three existing WARN messages will be deactivated.
- One INFO message will be reclassified as WARN.
- 15 WARN messages will now function as ERROR.
- ERROR messages block data submission; WARN messages do not but indicate issues.
- From September 2025, 15 warnings will become errors, blocking submissions until corrected.
- Common issues include incorrect dates, exchange rate errors, missing data, wrong VAT designations, and invoice modification issues.
- INFO message 11400 will now be a warning.
- Three warnings (IDs 690, 700, 1301) will be deactivated.
- Three new warning validations will be introduced.
Source: marosavat.com
Note that this post was (partially) written with the help of AI. It is always useful to review the original source material, and where needed to obtain (local) advice from a specialist.
