BR-AF-04:When document level charges use the IGIC VAT category, the seller must have...
When document level charges use the IGIC VAT category, the seller must have a proper tax identifier.
Engine Classification
Business data required · Explicit input workflow · No assumptions made
Required input: Seller VAT/Tax ID
What is BR-AF-04?
BR-AF-04 is a fatal validation rule defined in the EN 16931 specification. It checks whether when document level charges use the igic vat category, the seller must have....
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.
Why This Error Matters
Invoice will be rejected by validation. IGIC charges require seller identification for tax compliance.
BR-AF-04 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
- ·Error returned: BR-AF-04
- ·Specification: EN 16931
Before / After
<Invoice> <cac:AllowanceCharge>INVALID_CODE</cac:AllowanceCharge> </Invoice>
<Invoice> <cac:AllowanceCharge>VALID_CODE</cac:AllowanceCharge> </Invoice>
Technical Reference
Common Causes
- ·Charge marked IGIC but seller identifier missing
- ·Seller tax registration not included on invoice
- ·Document level charge added without identifier validation
- ·ERP does not enforce identifier rules for IGIC charges
- ·Seller identifier field empty
Seeing this in production? The API handles BR-AF-04 automatically. See the fix response →
See Also
Related Errors
Last updated: 27 February 2026
Handle BR-AF-04 Automatically in Your Pipeline
The compliance engine auto-remediates this error with controlled safety policies and evidence pack generation.