BR-DE-16:Seller VAT ID or tax number required
Seller must have VAT ID or tax registration number.
Engine Classification
Business data required · Explicit input workflow · No assumptions made
Required input: Seller VAT ID
What is BR-DE-16?
BR-DE-16 is a fatal validation rule defined in the XRechnung (Germany) specification (DEU national rules). It validates the CompanyID element under Party > PartyTaxScheme in the UBL invoice XML.
When this rule fires, the invoice is non-compliant and will be rejected by Peppol access points and national validation services. The sending system receives a rejection response and the invoice does not reach the buyer.
Target path: XPath: /Invoice/cac:AccountingSupplierParty/cac:Party/cac:PartyTaxScheme/cbc:CompanyID
Why This Error Matters
Invoice rejected. VAT identification is mandatory for most tax scenarios in Germany.
BR-DE-16 is a hard failure. Invoices that trigger this rule are rejected at the access point and never reach the recipient. In Peppol networks, this means your sending system receives an MLR (Message Level Response) with a rejection status. The invoice must be corrected and re-sent, adding delay to your payment cycle.
Validator Behavior
- ·Causes invoice rejection
- ·Rejected by XRechnung endpoints
- ·Error returned: BR-DE-16
- ·Specification: XRechnung (Germany)
How to Fix It
Add VAT ID
DE + 9 digits
Or tax number
German Steuernummer format
Before / After
<cac:PartyTaxScheme> <cbc:CompanyID>INVALID_CODE</cbc:CompanyID> </cac:PartyTaxScheme>
<cac:PartyTaxScheme> <cbc:CompanyID>VALID_CODE</cbc:CompanyID> </cac:PartyTaxScheme>
Technical Reference
XPath: /Invoice/cac:AccountingSupplierParty/cac:Party/cac:PartyTaxScheme/cbc:CompanyIDCommon Causes
- ·Seller tax identifier missing for taxable XRechnung
- ·Invoice uses S/Z/E/AE/K/G/L/M but no seller VAT ID
- ·BT-31, BT-32, or BG-11 required for taxable codes
- ·Seller party missing tax registration for German invoice
- ·Tax representative not configured when needed
Seeing this in production? The API handles BR-DE-16 automatically. See the fix response →
Frequently Asked Questions
Seller must have VAT ID or tax registration number.
This requires user input to resolve. Provide the correct value for `cbc:CompanyID` (BT-31). Invoice Navigator detects this error and prompts for the required business data before applying a safe fix.
Yes, BR-DE-16 is a critical error that will cause invoice rejection. It must be fixed before submission to ensure your invoice is accepted by the recipient's system.
BR-DE-16 requires specific business data to resolve. Invoice Navigator detects the error and guides you through providing the needed information, then applies the fix with full audit documentation.
Related Content
Last updated: 3 March 2026
Resolve BR-DE-16 with Guided Input
The compliance engine detects this error and prompts for the required business data before applying a safe, auditable fix.