BR-CO-15: Total with VAT must equal total without VAT plus total VAT

Explained by Matheel from ZATCA's rule text and the condition SDK 3.4.8 executes · Updated October 24, 2026

Error: the invoice is rejectedAll invoicesFields: BT-112, BT-109, BT-110

The document must have at least one cac:TaxTotal/cbc:TaxAmount whose @currencyID equals cbc:DocumentCurrencyCode, and cac:LegalMonetaryTotal/cbc:TaxInclusiveAmount (BT-112) must equal cbc:TaxExclusiveAmount (BT-109) plus the sum of all cac:TaxTotal/cac:TaxSubtotal/cbc:TaxAmount values, rounded to two decimals.

How to fix it

Set cbc:TaxInclusiveAmount = cbc:TaxExclusiveAmount + Σ cac:TaxSubtotal/cbc:TaxAmount (rounded to 2 decimals), and give at least one cac:TaxTotal/cbc:TaxAmount the document currency, e.g. <cbc:TaxAmount currencyID="SAR">.

ZATCA's official text

[BR-CO-15]-Invoice total amount with VAT (BT-112) = Invoice total amount without VAT (BT-109) + Invoice total VAT amount (BT-110).
Source: ZATCA SDK 3.4.8 · EN 16931 (CEN) rules

Fails when (the condition ZATCA's SDK runs)

not(every $Currency in cbc:DocumentCurrencyCode satisfies (count(cac:TaxTotal/xs:decimal(cbc:TaxAmount[@currencyID=$Currency])) >= 1) and (cac:LegalMonetaryTotal/xs:decimal(cbc:TaxInclusiveAmount) = round( (cac:LegalMonetaryTotal/xs:decimal(cbc:TaxExclusiveAmount) + sum(cac:TaxTotal/cac:TaxSubtotal/xs:decimal(cbc:TaxAmount))) * 10 * 10) div 100))

Related rules

• BR-13 · The invoice total without VAT (BT-109) must be present
• BR-14 · The invoice total with VAT (BT-112) must be present
• BR-CO-13 · Total without VAT = line amounts - allowances + charges
• BR-CO-14 · Total VAT must equal the sum of the VAT breakdown amounts
• BR-CO-16 · Amount due = total with VAT - prepaid amount + rounding amount
• BR-KSA-97 · Non-SAR invoice: SAR VAT total must differ from the VAT total