Defining or modifying invoice surcharge Use the Invoice Surcharge page to create or modify the surcharge code for the invoices. Select Billing > Invoice Profile. Click Add on the Invoice Surcharge tab. The Invoice Surcharge details page is displayed. You can use the Edit option corresponding to the Code. The Invoice Surcharge details page is displayed. Specify or review this information: Code The code of the surcharge applicable to the invoice. Description The description of the surcharge Code. Click Submit.