Tax rules are created in the admin in the Store > Settings > Tax Rules section. The tax rates can be
set to apply to specific globally or to specific regions. You can have as many tax rate rules as you need.
Country - Set to *All Countries to apply globally or select the specific country.
State - Set to *All States to apply to globally or select a specific state.
Zip/Postal Code - Leave empty to apply to all zip/postal codes. You can filter to specific codes by adding the codes in a pipe delimited list.
Tax Rate - Enter the value as percent. For example enter 8.75 for 8.75%.