E-Invoicing for Public Authorities

Why Public Authorities Matter

When you send invoices to public-sector clients, stricter rules usually apply. An XRechnung is often required.

For suppliers, this means: a standard PDF invoice may be rejected.

What's Typical for Public Authority Invoicing?

• XRechnung as a structured XML format
• Leitweg-ID (routing ID) for correct assignment
• Submission via specific portals or platforms
• Mandatory fields that must be filled
• Strict validation requirements

What Is a Leitweg-ID?

The Leitweg-ID (routing identifier) helps ensure your invoice reaches the right recipient within the public administration system.

When invoicing a public authority, you should clarify:

• Which Leitweg-ID must be used?
• Which portal should the invoice be submitted through?
• What format is accepted?
• Are there additional requirements from the contracting body?

Common Mistakes

• Sending a PDF instead of XRechnung
• Missing Leitweg-ID
• Incorrect recipient details
• Missing purchase order number
• Wrong invoice format
• Invalid XML structure

Who Does This Affect?

• IT service providers
• Tradespeople (Handwerker)
• Suppliers
• Consultants
• Training providers
• Contractors working with municipalities, schools, or regional authorities