Five mandates. Five formats. One inbox.
Germany mandatory receipt since Jan 2025. Belgium PEPPOL since Jan 2026. Poland KSeF rolling through April 2026. France all-receipt September 2026. Italy SdI since 2019. Buy cross-border and you're now ingesting XRechnung, Factur-X, KSeF XML, UBL 2.1 and PEPPOL BIS in parallel — each with its own quirks.
Sources · European Commission · EY · Avalara