Format & Standard Reference
By Standard
Understand 6 e-invoice formats and standards used globally. Each reference page covers specification details, mandatory fields, country coverage, and implementation notes.
EN 16931 Regional
CEN (European Committee for Standardization)
7 countries
Peppol BIS 3 Universal
Peppol
OpenPeppol AS (non-profit)
7 countries
XRechnung National
KoSIT (Koordinierungsstelle für IT-Standards, Germany)
1 countries
Factur-X National
AFNOR (Association Française de Normalisation)
1 countries
UBL 2.1 Universal
OASIS Open
3 countries
FatturaPA National
Agenzia delle Entrate (Italian Revenue Agency)
1 countries