Primary sources
Start from the official source.
These are the primary sources used across the library. Each guide also names the sources that support its own topic.
- European Commission: What is eInvoicing?Definition of a structured eInvoice
- European Commission: European legislation on eInvoicingDirective 2014/55/EU and the European standard
- European Commission: Compliance with the eInvoicing standardSemantic model and UBL/CII syntax bindings
- European Commission: eInvoicing in public procurementPublic procurement scope and receiver obligations
- European Commission: eInvoicing country factsheetsCountry-level research starting point
- European Commission: VAT in the Digital AgeEU VAT reform and phased measures
- OpenPeppol: Peppol BIS Billing 3.0Billing profile, information elements and validation
- OpenPeppol: Billing validation rulesTechnical and business rule examples
- European Commission: eInvoicing implementation checklistB2G implementation considerations