RTIR: all VAT-registered businesses, effectively all invoices. Sector e-invoice mandates: energy and water suppliers, non-residential customers only. The proposed future regime covers domestic B2B, intra-EU B2B and B2G, with paper still allowed for B2C and non-EU exports.
Hungary is routinely mis-described as having 'mandatory e-invoicing'. It does not. It has mandatory real-time REPORTING plus two narrow utility-sector e-invoice mandates. The general obligation is still only a consultation concept with no adopted legislation, so 2028/2029 must be presented as indicative. Hungary also benefits from the ViDA grandfathering (RTIR predates 1 Jan 2024), giving it until 1 Jan 2035 to align.
1 of 4 are primary sources. Mandate dates move — treat this page as a starting point and confirm against the primary source before committing a plan.
Work hands-on with the EN 16931 formats behind this mandate — no login, nothing uploaded.
Scrub the Hungary timeline and watch an invoice become the document each deadline will require.
Open time machine →Open a UBL, Factur-X or XRechnung file and read every EN 16931 field.
Open viewer →Generate a well-formed sample invoice to test your mapping.
Open generator →Check whether your Hungary partner is reachable on Peppol.
Open lookup →A page is a starting point. A scoped analysis gives you the specification, the mapping and the effort — in weeks, not quarters.