BR-20:The Seller tax representative postal address (BG-12) shall contain a Tax...
Fix: Set TaxScheme ID to "VAT". Provide the required value in the free validator.
The Seller tax representative postal address (BG-12) shall contain a Tax representative country code (BT-69), if the Seller (BG-4) has a Seller tax representative party (BG-11). This applies to the `cac:PostalAddress` element in the invoice XML.
Engine Classification
Business data required · Explicit input workflow · No assumptions made
Required input: Tax Representative Country Code
What is BR-20?
BR-20 is a fatal validation rule defined in the EN 16931 specification. It validates the ID element under TaxScheme in the UBL invoice XML.
When this rule fires, the invoice is rejected by Peppol access points and never reaches the buyer.
Target path: XPath: //cac:TaxScheme/cbc:ID
Why This Error Matters
Invoice rejected. Country code is mandatory for VAT jurisdiction determination.
BR-20 is a hard failure — the invoice must be corrected and re-sent before it can reach the recipient.
Validator Behavior
- ·Causes invoice rejection
- ·Error returned: BR-20
- ·Specification: EN 16931
How to Fix It
Check all TaxScheme
Find all TaxScheme/ID elements
Set to VAT
Value must be exactly VAT
Case sensitive
Must be uppercase VAT
Before / After
<cac:TaxRepresentativeParty> <cac:PostalAddress>INVALID_CODE</cac:PostalAddress> </cac:TaxRepresentativeParty>
<cac:TaxRepresentativeParty> <cac:PostalAddress>VALID_CODE</cac:PostalAddress> </cac:TaxRepresentativeParty>
Technical Reference
XPath: //cac:TaxScheme/cbc:IDCode Example
<cac:TaxScheme>
<cbc:ID>VAT</cbc:ID>
</cac:TaxScheme>Common Causes
- ·Tax representative address missing country code
- ·Country stored as full name not ISO code
- ·IdentificationCode not mapped for rep address
- ·Tax rep country assumed same as seller
- ·Country field not mandatory in rep setup form
Seeing this in production? The API handles BR-20 automatically. See the fix response →
Commonly Seen In
Frequently Asked Questions
The tax scheme identifier must be "VAT" for European invoicing.
Set TaxScheme ID to "VAT". Invoice Navigator detects this error and prompts for the required business data before applying a safe fix.
Yes, BR-20 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-20 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.
BR-20 is commonly seen in exports from All invoicing software. These software packages sometimes generate invoices that need adjustment to meet full compliance standards.
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Last updated: 15 April 2026
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