# BR-CIUS-PT-11

Source: https://xmlvalid.com/rules/BR-CIUS-PT-11

> An Invoice shall contain the Total VAT amount (BT-110).

- Level: error
- Rule sets: CIUS-PT rules (Portugal, UBL) 2.1.1
- Context: `//ubl:Invoice | //cn:CreditNote`
- Test: `exists(cac:TaxTotal/cbc:TaxAmount)`

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