Defining or modifying invoice tax qualifier information Use this page to define or modify the tax qualifier information for the invoices. Select Billing > Invoice Profile. Click Add on the Tax Qualifier tab. The Tax Qualifier page is displayed. You can use the Edit option corresponding to the tax qualifier code to modify the information. The Tax Qualifier page is displayed. Specify or modify this information: Tax Qualifier The code to indicate the type of tax, i.e. country tax, state, tax, etc. Description The description of the tax qualifier code. Click Submit.