# ibr-co-16

Source: https://xmlvalid.com/rules/ibr-co-16

> Amount due for payment (ibt-115) = Invoice total amount with Tax (ibt-112) - Paid amount (ibt-113) + Rounding amount (ibt-114).

- Level: error
- Rule sets: PINT Billing rules 1.1.3, PINT Billing rules (as shipped with PINT AE) 1.0.4
- Context: `cac:LegalMonetaryTotal`
- Test: `(xs:decimal(cbc:PrepaidAmount) and not(xs:decimal(cbc:PayableRoundingAmount)) and (xs:decimal(cbc:PayableAmount) = (round((xs:decimal(cbc:TaxInclusiveAmount) - xs:decimal(cbc:PrepaidAmount)) * 10 * 10) div 100))) or (not(xs:decimal(cbc:PrepaidAmount)) and not(xs:decimal(cbc:PayableRoundingAmount)) and xs:decimal(cbc:PayableAmount) = xs:decimal(cbc:TaxInclusiveAmount)) or (xs:decimal(cbc:PrepaidAmount) and xs:decimal(cbc:PayableRoundingAmount) and ((round((xs:decimal(cbc:PayableAmount) - xs:decimal(cbc:PayableRoundingAmount)) * 10 * 10) div 100) = (round((xs:decimal(cbc:TaxInclusiveAmount) - xs:decimal(cbc:PrepaidAmount)) * 10 * 10) div 100))) or (not(xs:decimal(cbc:PrepaidAmount)) and xs:decimal(cbc:PayableRoundingAmount) and ((round((xs:decimal(cbc:PayableAmount) - xs:decimal(cbc:PayableRoundingAmount)) * 10 * 10) div 100) = xs:decimal(cbc:TaxInclusiveAmount)))`

Validate a document against these rules: https://xmlvalid.com/validate