# ibr-053

Source: https://xmlvalid.com/rules/ibr-053

> If the Tax accounting currency code (ibt-006) is present, then the Invoice total Tax amount in accounting currency (ibt-111) MUST be provided.

- Level: error
- Rule sets: PINT Billing rules 1.1.3, PINT Billing rules (as shipped with PINT AE) 1.0.4
- Context: `/ubl:Invoice | /cn:CreditNote`
- Test: `every $taxcurrency in cbc:TaxCurrencyCode satisfies exists(//cac:TaxTotal/cbc:TaxAmount[@currencyID=$taxcurrency])`

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