# FX-SCH-A-000105

Source: https://xmlvalid.com/rules/FX-SCH-A-000105

> An Invoice that contains a Document level charge (BG-21) where the Document level charge VAT category code (BT-102) is "Intra-community supply" shall contain the Seller VAT Identifier (BT-31) or the Seller tax representative VAT identifier (BT-63) and the Buyer VAT identifier (BT-48).

- Level: error
- Rule sets: Factur-X MINIMUM rules 1.09, Factur-X BASIC rules 1.09
- Context: `//ram:SpecifiedTradeAllowanceCharge[ram:ChargeIndicator/udt:Indicator='true']/ram:CategoryTradeTax[ram:CategoryCode = 'K']`
- Test: `(//ram:SellerTradeParty/ram:SpecifiedTaxRegistration/ram:ID[@schemeID = 'VA'] or //ram:SellerTaxRepresentativeTradeParty/ram:SpecifiedTaxRegistration/ram:ID[@schemeID = 'VA']) and //ram:BuyerTradeParty/ram:SpecifiedTaxRegistration/ram:ID[@schemeID = 'VA']`

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