1) Log in to your Reseller Control Panel (RCP). Switch to Classic Panel.
2) Select ‘Billing’
3) Select Operations > Customers
4) The ‘Customers’ page opens
5) To select a Customer, click on their ‘Account ID’ or ‘Account Name’
6) The ‘Account#<accountID><accountName>’ page opens to the ‘General’ tab
7) Scroll down to the ‘Financial Information’
8) Click the Edit button
9) The ‘Financial Information’ section becomes editable
10) In the ‘Tax Zone ID’, click on the () button to view all the tax zones
11) Select a tax zone from the pop-up window
12) Click the Save button
13) You will receive a confirmation message
14) To have these changes reflected on your Cloud Store. You can visit your Cloud Store to see the changes.
Now whenever the Customer purchases a service plan, the tax rules pertaining to this tax zone will be automatically applied to this Customer.