| AdditionalData (Extn) | Italy: Additional Data and Italy: Tax Exemption Reason Code (Invoice Lines) | Use this Extension to specify additional data for specific use cases for Italy. |
| AdditionalProperty (Extn) | Poland B2B: Additional Property | Used to add additional information in Polish B2B documents. |
| AccountingCustomerPartyExtension (Extn) | Spain B2G: Buyer's Administrative Center | Used to model a Buyer's administrative center in Spain. |
| AccountingSupplierPartyExtension (Extn) | Italy: Supplier's Professional Register Details | Used in Italy to model the Supplier's professional registration details. |
| AllowanceChargeExtension (Extn) | Italy: Social Security Administration Reference and Italy: Withholding Tax Type Code and Italy: Social Security Organization Code | Use this extension to model specific allowance charges for Italy. |
| Article73Indicator (Extn) | Italy: Article 73 Indicator | Used in Italian documents to specify whether Article 73 applies or not. |
| BaseCapital (Extn) | Italy: Supplier's Base Capital | Used in Italy to specify the supplier's base capital. |
| BelowMarketValueSupplyIndicator (Extn) | Poland B2B: Below Market Value Supply Indicator | Used to indicate if a transaction is being supplied below market value. |
| BillingSoftware (Extn) | Portugal: Billing Software | Used in Portugal to specify the software that is used for billing and is referenced in Portuguese documents. |
| BusinessRegistrationProvinceCode (Extn) | Italy: Province for Supplier's Business | Used to specify the Italian province where the supplier's business is registered. |
| CashAccountingIndicator (Extn) | Poland B2B: Supplier Cash Accounting Indicator | Used to specify if a supplier is using cash accounting in Poland. |
| CorrectionReason (Extn) | Taiwan: Correction Reason | Use this Extension to specify a reason for a correction in Taiwanese Documents. |
| Description (Extn) | Portugal: Withholding Tax Total | Used to provide a description for withheld tax in Portugal. |
| DigitalStampAmount (Extn) | Italy: Digital Stamps | Used in Italy to specify the amount for digital stamps. |
| DigitalStampIndicator (Extn) | Italy: Digital Stamps | Used in Italy to indicate whether a digital stamp applies. |
| DocumentReferenceExtension (Extn) | Portugal: Document Reference ID | Used to reference the Commitment Document (Número do compromisso) in Portuguese documents. |
| IncidentalCosts (Extn) | Italy: Incidental Costs | Used to specify incidental costs in Italy. |
| InstallationSerialNumber (Extn) | Greece: Installation Serial Number | Used to specify the Installation Serial Number in Greek documents. |
| InvoiceDocumentReferenceExtension (Extn) | Poland B2B: Preceding Invoice Reference | Use this extension to document the correction method and reason for Poland. |
| InvoicedPrepaymentAmount (Extn) | Serbia: Advanced Payment Information | Use to specify advanced payments in Serbian documents. |
| InvoiceSeries (Extn) | Greece: Invoice Series | Use to specify the Invoice Series in Greek documents. |
| InvoiceSubtypeCode (Extn) | Greece: Invoice Subtype Code | Used to specify Invoice Sub-Type Codes for Greece. |
| LegalMonetaryTotal (Extn) | Serbia: Legal Monetary Totals (for Reduced Totals) | Used to specify legal monetary totals for reduced tax totals in Serbia. |
| LegalMonetaryTotalInTaxCurrency (Extn) | Spain B2G: Document Totals in Tax Currency | A group of elements providing the monetary totals for the invoice in tax currency. |
| NominalInvoiceIndicator (Extn) | Saudi Arabia: Nominal Invoice Indicator | Used to indicate if an invoice is a nominal invoice. |
| PayeePartyExtension (Extn) | Italy: Payee Data | Used to specify Payee data in Italy. |
| PaymentMeansExtension (Extn) | Portugal: ATM Payment Entity | Used to specify information about ATM payments in Portugal. |
| PaymentReasonCode (Extn) | Italy: Payment Reason Code | Used to specify a payment reason code in Italy. |
| PaymentTermsCode (Extn) | Italy: Payment Terms Code | Use to specify the Payment Terms code in Italy. |
| PaymentTermsStartDate (Extn) | Italy: Payment Terms Start Date | Used to specify the start date for payment terms in Italy. |
| PriceAmountBeforeAllowanceCharge (Extn) | Poland B2B: Item Gross Price and Italy: Item Gross Price | Used to specify gross item information in Italy. |
| ProfessionalRegister (Extn) | Italy: Supplier's Professional Register Details | Used to specify a supplier's professional details in Italy. |
| ReducedTotals (Extn) | Serbia: Reduced Tax Totals | Used to specify reduced totals in Serbian documents. |
| RoundingAmount (Extn) | Italy: Rounding Amount | Used in Italy to specify rounding amounts. |
| RoutingDetails (Extn) | VRBL: Sender ID and VRBL: Receiver IDs and VRBL: Receiver Details | Used in all countries to specify Sender and Receiver IDs. |
| SdIReceiverCode (Extn) | Italy: SDI Receiver Code | Used in Italy to specify the SdI Receiver code. |
| SimplifiedInvoiceIndicator (Extn) | Saudi Arabia: Simplified Invoice Indicator | Used to indicate if an invoice is a simplified invoice. |
| SummaryInvoiceIndicator (Extn) | Saudi Arabia: Summary Invoice Indicator | Used to indicate if an invoice is a summary invoice. |
| ThirdPartyIndicator (Extn) | Saudi Arabia: Third Party Invoice Indicator | Used to indicate if a Document was issued by a third party. |
| ThirdPartyPayment (Extn) | Germany B2G: Third-Party Payments | Use this extension to model third-party payments in Germany. |
| TaxExemptionIndicator (Extn) | Poland B2B: Supplier Tax Exemption Indicator | Use this extension to indicate if a Polish transaction is exempt from tax. |
| TransferOrServiceTypeCode (Extn) | Italy: Transfer or Service Type Code | Use to specify the Transfer or Service Type Code that is used in Italian documents. |
| TransmissionFormatCode (Extn) | Italy: Transmission Format Code | Use this to model the transmission format code in Italy. |
| TypeCode (Extn) | Italy: Withholding Tax Type Code | Used to specify the Withholding Tax Type code in Italy. |
| VatMechanism (Extn) | Italy: VAT Mechanism and Poland B2B: VAT Mechanism | Used in Italy and Poland to model VAT mechanism information. |
| VehicleDetails (Extn) | Italy: Vehicle Details | Use in Italy to specify details about vehicles. |
| WithholdingIndicator (Extn) | Italy: Social Security Withholding Indicator | Used to model information about withholding tax in Italy. |
