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E-invoice formats, demystified

Which e-invoice format does your client need?

Pick a country below โ€” get the exact format, the deadline, and the Clozo button that generates it. Everything you need in under a minute of reading.

If your client is in

๐Ÿ‡ฉ๐Ÿ‡ช Germany

Recommended format

ZUGFeRD 2.1

Hybrid PDF with structured XML embedded. Humans and accounting software both read it.

Peppol ID:Not needed
Delivery:Email directly โ€” or attach Leitweg-ID and submit to the B2G portal.

Mandate status

Upcoming mandate

Reception of e-invoices mandatory for all B2B since January 1, 2025. Issuance mandatory from January 1, 2027 (large businesses) / January 1, 2028 (SMEs).

Also accepted

  • Factur-X PDF
  • Peppol UBL

Clozo generates this format in one click from any signed proposal. โ€” Regulatory information, not legal advice.

Generate ZUGFeRD

In plain words

Six formats, one cheat sheet. Every one of these is available in Clozo with a single click.

FormatPrimary countryTypePeppol IDWhat it is
ZUGFeRD 2.1๐Ÿ‡ฉ๐Ÿ‡ช GermanyHybrid PDFNoPDF + XML inside, both human- and machine-readable.
Factur-X 1.0๐Ÿ‡ซ๐Ÿ‡ท France / EU universalHybrid PDFNoSame idea as ZUGFeRD, different name. EN 16931 compliant.
Peppol UBL 2.1๐Ÿ‡ณ๐Ÿ‡ฑ NL, ๐Ÿ‡ง๐Ÿ‡ช BE, 70+ countriesXMLRequiredSent over the Peppol network like structured email for invoices.
FacturaE 3.2.2๐Ÿ‡ช๐Ÿ‡ธ SpainXMLNoXML-only, submitted via the FACe B2G portal or email.
ebInterface 6.1๐Ÿ‡ฆ๐Ÿ‡น AustriaXMLNoAustrian B2G standard for the ER>B / USP gateway.
CII (UN/CEFACT)Advanced usersXMLNoRaw Cross Industry Invoice XML โ€” prefer Factur-X unless asked.

EU e-invoicing timeline

Key mandate deadlines across your likely client countries.

  1. 2019 ยท Q1๐Ÿ‡ฎ๐Ÿ‡น

    IT: SdI B2B e-invoicing mandatory (since January 1, 2019)

  2. 2025 ยท Q1๐Ÿ‡ฉ๐Ÿ‡ช

    DE: must accept ZUGFeRD/XRechnung from clients

  3. 2026 ยท Q1๐Ÿ‡ง๐Ÿ‡ช

    BE: Peppol UBL B2B e-invoicing mandatory

  4. 2026 ยท Q1๐Ÿ‡ต๐Ÿ‡ฑ

    PL: KSeF mandatory for the largest taxpayers (everyone else from April 1, 2026)

  5. 2026 ยท Q3๐Ÿ‡ซ๐Ÿ‡ท

    FR: B2B Factur-X via PDP mandatory

  6. 2027 ยท Q1๐Ÿ‡ฉ๐Ÿ‡ช

    DE: B2B e-invoicing mandatory (large businesses)

  7. 2028 ยท Q1๐Ÿ‡ฉ๐Ÿ‡ช

    DE: B2B mandatory for small businesses

  8. 2030 ยท Q3๐Ÿ‡ช๐Ÿ‡บ

    EU-wide ViDA โ€” cross-border B2B e-invoicing

Dates reflect legislation verified as of September 10, 2026. Always confirm with your country's tax authority โ€” mandates shift regularly.

Questions other freelancers had

Plain answers to the things that actually matter when you're the one sending the invoice.

No. Consumer invoices (B2C) do not require structured e-invoicing โ€” a standard PDF is fine. ZUGFeRD / XRechnung mandates apply to B2B (and B2G) only.

Ready to send your first e-invoice?

Clozo auto-picks the format by your client's country and warns you if mandatory data is missing โ€” before the XML ever leaves your machine.

EU e-invoice formats: ZUGFeRD, Peppol, FatturaPA โ€” Clozo