Formats
E-invoice formats
Most European formats are implementations of the same European standard, EN 16931. Each explainer below lists the countries in our data that use the format.
EN 16931 (European e-invoicing standard)
Standard · used in 27 countries
The European standard for electronic invoicing. It defines a semantic data model of the core elements of an e-invoice and lists the syntaxes that may carry it (UBL 2.1 and UN/CEFACT CII).
Peppol BIS Billing 3.0
CIUS · used in 20 countries
OpenPeppol's Business Interoperability Specification for invoices and credit notes, a CIUS of EN 16931 bound to the UBL syntax and used across the Peppol network.
XRechnung
CIUS · used in 1 country
Germany's standard for e-invoicing to public contracting authorities: a CIUS (plus an extension) of EN 16931, carried as an XML data set in UBL or CII.
ZUGFeRD / Factur-X
Hybrid PDF+XML · used in 2 countries
A Franco-German hybrid e-invoice: a human-readable PDF with an embedded structured XML (CII) file. Called ZUGFeRD in Germany and Factur-X in France.
FatturaPA
National format · used in 1 country
Italy's national XML e-invoice format, mandatory for invoices exchanged through the tax authority's Sistema di Interscambio (SDI).
KSeF structured invoice (Poland)
Platform format · used in 1 country
Invoices issued in Poland's National e-Invoicing System (Krajowy System e-Faktur), the Ministry of Finance platform for issuing, transmitting, receiving and storing invoices.
Facturae
National format · used in 1 country
Spain's national XML e-invoice format, used with a XAdES electronic signature, notably for invoices to public administrations through FACe.
EHF Billing
National format · used in 1 country
Norway's Elektronisk handelsformat for invoices, an approved standard for invoices to Norwegian public contracting authorities alongside Peppol BIS Billing 3.0.
OIOUBL
National format · used in 1 country
Denmark's national UBL-based e-invoice format, used with NemHandel and aligned with EN 16931.
ebInterface
National format · used in 1 country
Austria's national XML e-invoice standard, accepted by the federal e-Rechnung.gv.at platform alongside UBL.
e-SLOG
National format · used in 1 country
Slovenia's national e-invoice standard; version 2.0 is compliant with EN 16931 (with national extensions).
Finvoice
National format · used in 1 country
A Finnish national e-invoice format that operators may use for B2G invoices provided it complies with EN 16931.
NLCIUS / SI-UBL
CIUS · used in 1 country
The Dutch CIUS of EN 16931 (implemented as SI-UBL 2.0), used for invoices to Dutch government bodies and available to businesses.
RO_CIUS
CIUS · used in 1 country
Romania's CIUS of EN 16931 (Minister of Finance Order 1366/2021), required for invoices submitted to the RO e-Factura platform.
CIUS-PT
CIUS · used in 1 country
Portugal's CIUS of EN 16931, used in UBL and CII syntaxes for invoices to public entities.