BR-CO-16: Amount due for payment (BT-115) must match the invoice's other totals

ExampleEN 16931 (UBL)

An invoice built like a valid one, except for this:

<cac:LegalMonetaryTotal>
  <cbc:LineExtensionAmount currencyID="EUR">100.00</cbc:LineExtensionAmount>
  <cbc:TaxExclusiveAmount currencyID="EUR">100.00</cbc:TaxExclusiveAmount>
  <cbc:TaxInclusiveAmount currencyID="EUR">119.00</cbc:TaxInclusiveAmount>
  <cbc:PayableAmount currencyID="EUR">200.00</cbc:PayableAmount>
</cac:LegalMonetaryTotal>

The validator says: Amount due for payment (BT-115) is 200.00, but the other amounts on the invoice add up to 119.00.

Official validation message

This is the official EN 16931 validation message for this rule, quoted verbatim in English from the validation artefacts below. It is not translated: a translation would no longer be the official text.

[BR-CO-16]-Amount due for payment (BT-115) = Invoice total amount with VAT (BT-112) -Paid amount (BT-113) +Rounding amount (BT-114).

Quoted verbatim and unmodified from the official EN 16931 validation artefacts published by CEN/TC 434, release validation-1.3.16 of April 13, 2026, licensed under the European Union Public Licence v. 1.2. Provided without warranty of any kind, including as to accuracy. Source and licence →

How to fix it

Recalculate Amount due for payment so it matches the sum of the invoice's other amounts.

Frequently asked questions

What does BR-CO-16 mean?

Amount due for payment (BT-115) must match the invoice's other totals. The rule runs under EN 16931 (UBL), Peppol BIS 3.0, and XRechnung 3.0 (UBL).

How do I fix BR-CO-16?

Recalculate Amount due for payment so it matches the sum of the invoice's other amounts. In UBL the element is ⁦/Invoice/cac:LegalMonetaryTotal/cbc:PayableAmount⁩.