Countries

E-invoicing rules by country

Mandate timelines, accepted formats and the government platform for every EU member state, from the country data files.

B2B mandatory · 5

Country	Formats	Peppol	Overview
Belgium	Peppol BIS Billing 3.0 (UBL)	Yes	Belgium went live with mandatory B2B e-invoicing on January 1, 2026, making it the first EU country to mandate Peppol as the exclusive B2B channel.
Germany	XRechnung (UBL), XRechnung (CII), ZUGFeRD 2.x	Yes	Germany has one of the most active e-invoicing mandates in the EU.
Italy	FatturaPA (XML)	Yes	Italy was the first EU country to mandate B2B e-invoicing and runs the most mature clearance model in Europe.
Poland	KSeF XML format	—	Poland launched KSeF (Krajowy System e-Faktur) as mandatory for all B2B transactions on February 1, 2026.
Romania	RO_CIUS (UBL 2.1 based)	—	Romania operates a full clearance model where every B2B invoice between Romanian-established entities must transit through RO e-Factura.

Public sector only · 16

Country	Formats	Peppol
Austria	ebInterface 6.0, Peppol BIS Billing 3.0	Yes
Bulgaria	EN 16931, UBL 2.1, UN/CEFACT CII	—
Cyprus	Peppol BIS 3.0, EN 16931, UBL 2.1, UN/CEFACT CII	Yes
Czech Republic	ISDOC (version 5.2+), UBL 2.1, EDIFACT, Peppol BIS 3.0	Yes
Denmark	OIOUBL 2.1, Peppol BIS 3.0, OIOUBL 3.0 (under review)	Yes
Estonia	EN 16931, Estonian e-arve (EVS 923), UBL 2.1, UN/CEFACT CII, Peppol BIS 3.0	Yes
Finland	Finvoice 3.0, TEAPPSXML 3.0, Peppol BIS 3.0	Yes
France	Factur-X, UBL, CII	Yes
Hungary	NAV XML 3.0, UBL 2.1, UN/CEFACT CII, Peppol BIS 3.0	Yes
Lithuania	Peppol BIS Billing 3.0, Peppol BIS Billing CII Invoice, Lithuanian national XML, UBL XML	Yes
Luxembourg	Peppol BIS 3.0, UBL 2.1, UN/CEFACT CII	Yes
Malta	Peppol BIS 3.0, UBL 2.1, UN/CEFACT CII, EN 16931	Yes
Netherlands	SI-UBL 2.0, Peppol BIS Billing 3.0	Yes
Portugal	CIUS-PT (UBL 2.1), CIUS-PT (CEFACT CII), Peppol BIS 3.0	Yes
Spain	Facturae 3.2.x	Yes
Sweden	Peppol BIS Billing 3.0, Svefaktura (legacy, declining), EDIFACT (legacy, not recommended)	Yes

Mandate planned · 6

Country	Formats	Peppol
Croatia	UBL 2.1, CII, Peppol BIS 3.0, EN 16931 + HR extensions	Yes
Greece	myDATA XML, EN 16931, Peppol BIS 3.0 (for B2G delivery)	Yes
Ireland	Peppol BIS 3.0, UBL 2.1, UN/CEFACT CII, CIUS-CEFACT	Yes
Latvia	Peppol BIS Billing 3.0, UBL 2.1, EN 16931 compliant XML	Yes
Slovakia	UBL 2.1, CII D16B, Peppol BIS 3.0	Yes
Slovenia	e-SLOG 2.0, UBL 2.1, Peppol BIS 3.0, EN 16931 compliant syntaxes	Yes

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