BR-15

The invoice must contain the amount due for payment (BT-115). The norm requires each of the totals explicitly — none of them may be left to be inferred from the others.

Severity: Error
Applies to: CII, UBL
Rule set: v2026-01-31

Official rule text

An Invoice shall have the Amount due for payment (BT-115).

Why does BR-15 happen?

On invoices without a prepayment the amount due equals the gross total, and an identical value looks redundant. The norm wants it in its own right regardless.

How do you fix BR-15?

Write BT-115 into cac:LegalMonetaryTotal/cbc:PayableAmount in UBL, or ram:SpecifiedTradeSettlementHeaderMonetarySummation/ram:DuePayableAmount in CII. How the value has to agree with the other totals is covered by BR-CO-10 through BR-CO-16.

In the XML

A UBL fragment. The CII path is named above — same change, different element names.

Fails

<cac:LegalMonetaryTotal>
  <cbc:LineExtensionAmount currencyID="EUR">1000.00</cbc:LineExtensionAmount>
  <cbc:TaxExclusiveAmount currencyID="EUR">1000.00</cbc:TaxExclusiveAmount>
  <cbc:TaxInclusiveAmount currencyID="EUR">1190.00</cbc:TaxInclusiveAmount>
</cac:LegalMonetaryTotal>

Fixed

<cac:LegalMonetaryTotal>
  <cbc:LineExtensionAmount currencyID="EUR">1000.00</cbc:LineExtensionAmount>
  <cbc:TaxExclusiveAmount currencyID="EUR">1000.00</cbc:TaxExclusiveAmount>
  <cbc:TaxInclusiveAmount currencyID="EUR">1190.00</cbc:TaxInclusiveAmount>
  <cbc:PayableAmount currencyID="EUR">1190.00</cbc:PayableAmount>
</cac:LegalMonetaryTotal>

NormAPI provides technical validation, not tax or legal advice.