You want to prevent your Amazon orders which already have tax from calculating double tax when importing into AvaTax from NetSuite.
- To have Amazon NetSuite transactions not entered into the Admin Console. You need to associate the tax item to anything other than AVATAX or -Not Taxable-. This will prevent the transaction from being sent to AvaTax from NetSuite.
- For example, you can create your own tax code like "AMZ-EXTR". Next, set the tax item to 'AMZ-EXTR' on customer record (Financial tab). This will prevent the AvaTax/NetSuite integration from calculating tax. If the 'Tax Item' field is blank, the default tax code from the Avalara configuration will be used.
- To create a tax code in NetSuite, go to Setup > Accounting > Tax Codes > New.