# ibr-041

Source: https://xmlvalid.com/rules/ibr-041

> Each Invoice line allowance (ibg-27) MUST have an Invoice line allowance amount (ibt-136).

- Level: error
- Rule sets: PINT Billing rules 1.1.3, PINT Billing rules (as shipped with PINT AE) 1.0.4
- Context: `cac:AllowanceCharge[cbc:ChargeIndicator = false()]`
- Test: `exists(cbc:Amount) or not(exists(ancestor::cac:InvoiceLine|ancestor::cac:CreditNoteLine))`

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