# BR-NG-09-GST-SG

Source: https://xmlvalid.com/rules/BR-NG-09-GST-SG

> The GST category tax amount (BT-117-GST) in a GST breakdown (BG-23) where the GST category code (BT-118-GST) is "NG" shall be 0 (zero).

- Level: error
- Rule sets: PINT SG rules (Singapore) 1.4.1
- Context: `cac:TaxTotal/cac:TaxSubtotal/cac:TaxCategory[normalize-space(cbc:ID) = 'NG'][cac:TaxScheme/normalize-space(upper-case(cbc:ID))='GST']`
- Test: `../cbc:TaxAmount = 0`

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