Document level charge TAX exemption reason text A textual statement of the reason why the document level charge amount is exempted from TAX or why no TAX is being charged About ID IBT-199Cardinality 0..1Section AlignedName Document level charge TAX exemption reason textSyntax binding ubl:Invoice / cac:AllowanceCharge / cac:TaxCategory / cbc:TaxExemptionReasonRules IBR-SR-32: VAT exemption reason text (ibt-120) MUST occur maximum once.IBR-SR-61: Allowance/charge tax exemption reason (ibt-197) (ibt-199) MUST occur maximum once.