| field name | data type | db field | description |
| tiCInvoice_ID | integer | CInvoiceVat.CInvoice_ID | Link to CInvoice |
| tiDomain_ID | integer | Vat.Domain_ID | Domain |
| tcDomainCode | character | Domains.DomainCode | Domain |
| tcTxclTaxCls | character | CInvoiceVat.TxclTaxCls | Tax Class. This field default from the supplier, and can be modified. |
| tcTxenvTaxEnv | character | CInvoiceVat.TxenvTaxEnv | Tax Environment. This field is automatically calculated based on the supplier and ship-to address details, and can be modified. |
| tcTxuTaxUsage | character | CInvoiceVat.TxuTaxUsage | Tax Usage. These fields default from the supplier, and can be modified. |
| tiVat_ID | integer | CInvoiceVat.Vat_ID | Domain |
| tcVatCode | character | Vat.VatCode | Tax Code |
| ti_sequence | integer | calculated | primary index |
| tc_rowid | character | calculated | = rowid(CInvoiceVat),rowid(Vat),rowid(Domains) |