To view Taxes, select Applications > BackOffice Management > General Ledger Account Assignments > Taxes.
To add taxes:
From the Taxes window, right-click and select New. This displays the Add Tax form.
Enter a valid Tax ID then select a subcategory and click the Edit button. This displays the Add GL window.
Choose to override a subcategory to enable the GL Account selector.
See also:
Adding GL Taxes
Editing GL Taxes
Editing the GL tab for Global Location (Retail Tax Type, Tender Type, Credit Card Type)