The base amount to which the allowance/charge percentage is applied to calculate the allowance/charge amount.
Typically the invoice subtotal (BT-109) or line total amount (BT-106) depending on the type of allowance/charge.
Mandatory for all document-level allowances/charges according to EN 16931-1.
/Invoice/cac:AllowanceCharge/cbc:BaseAmount/CrossIndustryInvoice/SupplyChainTradeTransaction/ApplicableHeaderTradeSettlement/ram:SpecifiedTradeAllowanceCharge/ram:BasisAmount1000.002500.500.00-100.00✗ Invalid1000,50✗ Invalid1.000.00✗ InvalidOur AI-powered Invoice Converter automatically handles all XRechnung requirements, including proper field validation.