| IItemTax Properties | 
The IItemTax type exposes the following members.
| Name | Description | |
|---|---|---|
| ItemTaxCustomData | 
            Tax class custom data.
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| ItemTaxDisplayName | 
            Tax class display name.
              | |
| ItemTaxID | 
            Tax class identifier.
              | |
| ItemTaxIsFlat | 
            True - tax class value is flat, False (default) - tax class value is relative.
              | |
| ItemTaxIsGlobal | 
            True - tax class value is set in global main currency, False (default) - tax class value is set in site main currency. 
            Takes effect only if tax class value is flat.
              | |
| ItemTaxValue | 
            Tax class value.
              | |
| ItemTaxZeroIfIDSupplied | 
            True - if customer's tax ID is supplied, the tax value for the customer is zero. False (default) - value of the tax is calculated
              |