BR-AG-10 A VAT breakdown with the VAT category code (BT-118) M (Tax on production, services and imports in Ceuta and Melilla (IPSI)) must not have a VAT exemption reason code (BT-121) or reason text (BT-120), but you supplied vatExemptionReasons.M = "Exento"
A VAT breakdown with the VAT category code (BT-118) M (Tax on production, services and imports in Ceuta and Melilla (IPSI)) must not have a VAT exemption reason code (BT-121) or reason text (BT-120), but you supplied vatExemptionReasons.M = "Exento". Category M charges IPSI, which is a tax actually levied on the supply — an exemption reason would claim relief from the very tax the breakdown says you collected. BR-AG-10 is fatal at document level; this finding is a warning because the library drops the value rather than emitting it, so the generated XML still passes — but your intent was silently discarded, which you should know about.
This rule is implemented and its error payload below is real, but the long-form write-up — normative text, worked example, divergence note — is not written yet. Everything the library knows about this rule is on this page. Ask and we will prioritise it.
- Business term
BT-120 / BT-121- Severity
warning
What the library returns
The exact object in result.errors when this rule fires.
Generated by running @attestwire/en16931, not transcribed:
{
"rule": "BR-AG-10",
"field": [
"BT-120",
"BT-121"
],
"severity": "warning",
"message": "A VAT breakdown with the VAT category code (BT-118) M (Tax on production, services and imports in Ceuta and Melilla (IPSI)) must not have a VAT exemption reason code (BT-121) or reason text (BT-120), but you supplied vatExemptionReasons.M = \"Exento\". Category M charges IPSI, which is a tax actually levied on the supply — an exemption reason would claim relief from the very tax the breakdown says you collected. BR-AG-10 is fatal at document level; this finding is a warning because the library drops the value rather than emitting it, so the generated XML still passes — but your intent was silently discarded, which you should know about.",
"fix": "Remove the \"M\" entry from vatExemptionReasons. If you need to say something to the buyer about this line, use the invoice note (BT-22) or the line note (BT-127), which carry free text without making a VAT claim.",
"example": "\"vatExemptionReasons\": { }, \"lines\": [{ \"id\": \"1\", \"description\": \"Beratung\", \"quantity\": 1, \"unitCode\": \"C62\", \"unitPrice\": 100, \"vatCategory\": \"M\", \"vatRate\": 10 }]",
"xpath": "/ubl:Invoice/cac:TaxTotal/cac:TaxSubtotal/cac:TaxCategory/cbc:TaxExemptionReason",
"docsUrl": "https://attestwire.com/rules/BR-AG-10"
}
xpath locates the element in the generated UBL document,
which is where a KoSIT or Peppol validator will report the same problem.
A passing value
"vatExemptionReasons": { }, "lines": [{ "id": "1", "description": "Beratung", "quantity": 1, "unitCode": "C62", "unitPrice": 100, "vatCategory": "M", "vatRate": 10 }]The fix
Remove the "M" entry from vatExemptionReasons. If you need to say something to the buyer about this line, use the invoice note (BT-22) or the line note (BT-127), which carry free text without making a VAT claim.