# aligned-ibrp-053

Source: https://xmlvalid.com/rules/aligned-ibrp-053

> Invoice line net amount (ibt-131) MUST equal (Invoiced quantity (ibt-129) * (Item net price (ibt-146)/item price base quantity (ibt-149)) + Sum of invoice line charge amount (ibt-141) - sum of invoice line allowance amount (ibt-136).

- Level: error
- Rule sets: PINT A-NZ rules (Australia and New Zealand) 1.1.3
- Context: `cac:InvoiceLine | cac:CreditNoteLine`
- Test: `(exists(cac:Price/cbc:BaseQuantity) and u:slack(xs:decimal(cbc:LineExtensionAmount), xs:decimal(((cbc:InvoicedQuantity|cbc:CreditedQuantity) * (cac:Price/cbc:PriceAmount div cac:Price/cbc:BaseQuantity)) + sum(cac:AllowanceCharge[cbc:ChargeIndicator = true()]/cbc:Amount) - sum(cac:AllowanceCharge[cbc:ChargeIndicator = false()]/cbc:Amount)), 0.02)) or (not(exists(cac:Price/cbc:BaseQuantity)) and u:slack(xs:decimal(cbc:LineExtensionAmount), xs:decimal(((cbc:InvoicedQuantity|cbc:CreditedQuantity) * cac:Price/cbc:PriceAmount) + sum(cac:AllowanceCharge[cbc:ChargeIndicator = true()]/cbc:Amount) - sum(cac:AllowanceCharge[cbc:ChargeIndicator = false()]/cbc:Amount)), 0.02))`

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