| Attribute | Description | Physical Name | Domain | Data Type | Foreign Key Table |
| TaxAuthorityID (PK) | A specific TAX AUTHORITY that establishes the tax rate. The TAX AUTHORITY is normally a government body. | ID_ATHY_TX | Identity | integer | |
| RoundingCode | A code that indicates how tax is to be rounded when calculated. | SC_RND | Code2 | char(2) | |
| RoundingDigitsQuantity | The number of digits to which rounding is to be calculated. | QU_DGT_RND | Quantity | DECIMAL(9,3) | |
| PartyRoleAssignmentID (FK) | Token identifier for a PartyRoleAssignmentInstance. | ID_PRTY_RO_ASGMT | Identity | integer | PartyRoleAssignment(PA_RO_PRTY) |