# FX-SCH-A-000135

Source: https://xmlvalid.com/rules/FX-SCH-A-000135

> An Invoice shall at least have one VAT breakdown group (BG-23).

- Level: error
- Rule sets: Factur-X BASIC rules 1.09
- Context: `//rsm:SupplyChainTradeTransaction/ram:ApplicableHeaderTradeSettlement`
- Test: `ram:ApplicableTradeTax`

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