1.Open a ''Client'' window.

2.Do a research to display the file in which you want to make changes.

3.Move under the ''Settings'' tab and the sub-tab ''Billing''.

4.Click on the icon (List of value) at the right of the field ''Applicable tax''.

5.The ''Selection of value'' window is displayed, choose among the proposed items.

6.Click on .

7.Click on (Save).