OSS Tax Codes, Tax Types, and Tax Control Accounts
In OneWorld accounts, the OSS tax codes, tax types, and tax control accounts are automatically created when you assign an OSS nexus to a subsidiary. This automatic provisioning requires the International Tax Reports SuiteApp. See EU One Stop Shop Tax Code Provisioning.
In accounts that are not OneWorld, you create the OSS tax codes by editing a custom record and running a script provided by the International Tax Reports SuiteApp. For detailed steps, see OSS Tax Code Provisioning for Regular NetSuite Accounts.
OSS tax codes for the other 27 EU member states include standard, reduced, and special reduced rates. You can inactivate OSS tax codes for countries where you are sure you will not be getting orders from. If you expect sales from any EU country, then we recommend that you do not inactivate any OSS tax code so that the system can correctly calculate the VAT.
For information about how NetSuite determines the tax code to use on OSS transactions, see OSS Invoicing and Tax Rate Determination.