What causes the BR-CO-18 error?

Sum of line net amounts must equal LineExtensionAmount in totals.

How do I fix BR-CO-18?

This requires user input to resolve. Provide the correct value for `cac:TaxSubtotal` (BG-23). Invoice Navigator detects this error and prompts for the required business data before applying a safe fix.

Is BR-CO-18 a critical error?

Yes, BR-CO-18 is a critical error that will cause invoice rejection. It must be fixed before submission to ensure your invoice is accepted by the recipient's system.

Can BR-CO-18 be automatically fixed?

BR-CO-18 requires specific business data to resolve. Invoice Navigator detects the error and guides you through providing the needed information, then applies the fix with full audit documentation.

Error codes · EN 16931

BR-CO-18Fixable here

An Invoice shall at least have one VAT breakdown group (BG-23)

This is the rejection, word for word: „[BR-CO-18] An Invoice shall at least have one VAT breakdown group (BG-23). This applies to the `cac:TaxSubtotal` element in the invoice XML.“

What to have readyInvoiced Quantity · Unit Price

What we doThis requires user input to resolve. Provide the correct value for `cac:TaxSubtotal` (BG-23).

Choose the rejected invoiceor drop it here

XRechnung XML or ZUGFeRD PDF. Checking is free · corrected file €1.90 · the first every 30 days is free · no sign-up.

If you enter it yourself in your invoicing software

Before

<cac:TaxTotal>
  <cac:TaxSubtotal><!-- invalid or missing value --></cac:TaxSubtotal>
</cac:TaxTotal>

After

<cac:TaxTotal>
  <cac:TaxSubtotal>correct-value</cac:TaxSubtotal>
</cac:TaxTotal>

What the finding looks likeExample

FindingValue missing · BR-CO-18

Location/Invoice/cac:LegalMonetaryTotal/cbc:LineExtensionAmount

From youInvoiced Quantity, Unit Price

ThenPassed

ProofSHA-256 and /verify link after the check

Often appears together with

BR-CO-19Invoice period must have at least one date BR-CO-20Invoice line period dates required