This configuration setting allows you to choose the order in which account, billing, and statement contacts are used to determine a taxable address.
Getting Here: Click Configuration > Billing > Taxation Settings > Account Taxable Addresses To Use
Select the option that reflects your preferred order to use the addresses for tax purposes. The drop-down menu provides several combinations of the following three contacts:
If any of the contacts do not have information associated with them, the next contact in your selected order is checked until a valid tax address is available.