 Â Add | Adds a withholding tax category. |
| Â Delete | Deletes an existing withholding tax category. |
| Â Get | Retrieves a withholding tax category. The category is specified by its key, which is contained in the `WTaxCategoryParams` object passed to the method. |
| Â GetDataInterface | Creates an empty data structure for use with the `WTaxCategoriesService`. |
| Â GetDataInterfaceFromXMLFile | Creates an object from an XML file. |
| Â GetDataInterfaceFromXMLString | Creates an object from XML. |
| Â GetList | Returns the `WTaxCategoryParamsCollection` data collection that identifies all withholding tax categories. |
| Â Update | Updates an existing withholding tax category. |