Digital invoices, created and sent in electronic format, are ubiquitous. A special category of these digital documents are e-invoices, which are not only electronic but also in a structured and machine-readable format to enable automated processing. In Germany, the XRechnung format is specifically used, which complies with EU directives for public procurement and promotes interoperability between public institutions and suppliers through its standardization. These different forms of invoicing address the needs for efficiency, accuracy, and compliance in digital accounting.

What is + Difference between Digital Invoice, eInvoice & XRechnung

Here is a clear distinction between Digital Invoice,eInvoiceandXRechnung:

1. Digital Invoice

A digital invoice is any invoice document that exists in digital form. This can be, for example, an invoice as a PDF document, a scanned paper document, or even a simple email with invoice details. A digital invoice is therefore an invoice that is not printed on paper but transmitted electronically.

• Characteristics:
  • Can be a PDF, a scanned image, or a text document.
  • Human-readable, but generally not machine-readable for automatic processing.
  • Typical examples are PDF invoices sent via email.
• Disadvantages:
  • Manual entry or processing is required to integrate them into IT systems.
  • Lack of standards for automated processing.

2. eInvoice (electronic invoice)

The eInvoice goes a step further than the digital invoice because it uses a structured format that is readable by both humans and machines. An eInvoice contains machine-readable data that can be automatically processed by IT systems without the need for manual intervention. It meets specific legal requirements and follows the provisions of EU Directive 2014/55/EU.

• Features:
  • It is in a structured format, usually XML.
  • Machine-readable, enables automated processing.
  • Examples of eInvoice formats: XRechnung,ZUGFeRD.
• Advantages:
  • Reduces manual intervention and errors.
  • Meets legal requirements for electronic invoices.
  • Facilitates data exchange between companies and authorities.

3. XRechnung

The XRechnung is a specific form of e-invoice. It is a standardized XML-based format that is mandatory in Germany, particularly for invoicing with public clients (B2G). It meets the requirements of EU Directive 2014/55/EU and is the standard format required by federal, state, and municipal governments for electronic invoices.

• Features:
  • Pure XML format, no PDF component.
  • Developed for use in public administration (B2G).
  • Meets all legal requirements for electronic invoices in the public sector.
• Advantages:
  • Automated processing by IT systems without manual intervention.
  • Specific requirements for exchange with public clients.
  • Mandatory for invoices to federal, state, and local governments in Germany.

Summary as a comparison and the differences between invoice types:

• Digital Invoice: Any invoice transmitted digitally (e.g., PDF or scanned invoice), but without a structured format for automated processing.
• eInvoice: An electronic invoice in a structured format that allows for machine processing (e.g., XRechnung, ZUGFeRD).
• XRechnung: A special XML-based eInvoice format used in Germany for the public sector (B2G) and legally mandated.

With the introduction of the eInvoice mandate from 2025, the use of structured formats such as XRechnung or ZUGFeRD will become more widespread and mandatory in the B2B sector.

In summary, XRechnung is a specific form of e-invoice with strict standards for electronic exchange in Germany, while e-invoices generally refer to structured, machine-readable invoices, and digital invoices refer to any type of invoice in electronic form, without specific requirements for format or structure.