Performing the Match process This procedure will show you how to enable Tax Calculate using Match processing. Access Purchase Order Entry (PO20.1) and specify the required information. The geocode related to the PO is from the ship to the vendor's address. On the Purchase Order Entry Line Detail screen, set the Taxable option to Y. Note: Once added, the PO line will reflect the tax code based on the geocode on that location. Proceed in releasing the Purchase Order. Add and release the receipt in PO30. Add the invoice in AP20.2. Note: The Create Detail action will populate the line information including the geocode.