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E-Invoice Compliance Guides

Browse the main compliance guides for XRechnung, ZUGFeRD, PEPPOL, and EU requirements. Use them to verify format choices, routing, and validation before sending.

Start here

If you are new, follow this order: pick your target format, confirm routing (PEPPOL vs portal), then validate before you send.

Choose the guide that matches what your recipient expects (often XRechnung or ZUGFeRD in Germany).
Cross-check identifiers (VAT, routing IDs) and mandatory fields for that jurisdiction.
Run validation on the structured output and fix BR-/PEPPOL findings before submission.

Quick actions

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Guide

XRechnung Standard

German standard for electronic invoicing in the public sector

ZUGFeRD Format

Hybrid PDF/XML format for structured electronic invoices

PDF/A-3 for ZUGFeRD

Why hybrid ZUGFeRD and Factur-X PDFs require an archival PDF/A-3 container

DIN EN 16931-1 Standard

European semantic data model for electronic invoices

European E-Invoicing Mandate

EU-wide rollout and policy context for electronic invoicing

Peppol Network

Pan-European network for exchanging electronic documents

UBL (Universal Business Language)

XML-based standard for business documents used in international trade

CII (Cross Industry Invoice)

UN/CEFACT cross-industry invoice format

Leitweg-ID Validation

Routing identifiers for German public-sector recipients and validation rules