BR-CO-10: Sum of invoice line net amounts (BT-106)
Severity: fatal · Syntax: CII, UBL
Official message
Sum of Invoice line net amount (BT-106) = Σ Invoice line net amount (BT-131).
What this means
BT-106 must equal the sum of line net amounts BT-131. The UBL assertion compares cbc:LineExtensionAmount with the sum of the line LineExtensionAmount values, rounded to two decimal places (round(sum × 100) div 100). Official text: Sum of Invoice line net amount (BT-106) = Σ Invoice line net amount (BT-131).
Typical cause
A line is missing from the sum, or header and lines were rounded differently.
How to fix it
Calculate the named BT fields in the same currency and set the header amounts to the result of the assertion. The check helps you find the difference.
UBL
<cbc:LineExtensionAmount currencyID="EUR">100.00</cbc:LineExtensionAmount>CII
<ram:LineTotalAmount>100.00</ram:LineTotalAmount>Business term
BT-106, BT-131
Related rules
Context and assertion
UBL cac:LegalMonetaryTotal
CII //ram:SpecifiedTradeSettlementHeaderMonetarySummation
UBL
(xs:decimal(cbc:LineExtensionAmount) = xs:decimal(round(sum(//(cac:InvoiceLine|cac:CreditNoteLine)/xs:decimal(cbc:LineExtensionAmount)) * 10 * 10) div 100))CII
xs:decimal(ram:LineTotalAmount) = round(xs:decimal(sum(../../ram:IncludedSupplyChainTradeLineItem/ram:SpecifiedLineTradeSettlement/ram:SpecifiedTradeSettlementLineMonetarySummation/ram:LineTotalAmount)) * xs:decimal(100)) div xs:decimal(100)Check a file now, free of charge
curl -F "file=@rechnung.xml" https://checkxrechnung.com/v1/validate
Questions
What does BR-CO-10 actually check?
BT-106 must equal the sum of line net amounts BT-131. The UBL assertion compares cbc:LineExtensionAmount with the sum of the line LineExtensionAmount values, rounded to two decimal places (round(sum × 100) div 100). Official text: Sum of Invoice line net amount (BT-106) = Σ Invoice line net amount (BT-131).
How do I fix BR-CO-10?
Calculate the named BT fields in the same currency and set the header amounts to the result of the assertion. The check helps you find the difference.
If BR-CO-10 passes, is the invoice legally compliant?
No. This page helps you read this one Schematron assertion. A pass is not a statement about tax law, portal acceptance, or bank overlays.