# BR-56-GST-SG

Source: https://xmlvalid.com/rules/BR-56-GST-SG

> Each Seller tax representative party (BG-11) shall have a Seller tax representative GST identifier (BT-63-GST).

- Level: error
- Rule sets: PINT SG rules (Singapore) 1.4.1
- Context: `cac:TaxRepresentativeParty`
- Test: `exists(cac:PartyTaxScheme[cac:TaxScheme/cbc:ID = 'GST']/cbc:CompanyID)`

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