For example, in Canada there are sometimes two applicable taxes to a client's purchase.  In this case, you'll need to setup two rules to let the system know when taxes should be applied.

Example Scenario:
Shop Located: Vancouver BC, Canada

Taxes in BC, Canada:

• GST: 5.00%
• PST: 7.00%

Tax Scenario:

• Shopper from within BC will be subjected to both GST and PST
• Shopper Outside of BC but within Canada (Other Provinces) will be subjected to only GST
• Shopper Outside of Canada will not be subjected to any Canadian taxes.

Rules Required: Assuming you have no other rules setup
Tax Settings Tutorial

Rule 1: GST Rule

• Define A New Tax Zone: Canada
  • All States / Provinces
• Select a Tax Class: General
• Rate Priority: 1
• Tax Rate%: 5.00%
• Apply to: All Groups
• Tax Rate Description: GST

Rule 2: PST Rule

• Define A New Tax Zone: Canada
  • British Columbia
• Select a Tax Class: General
• Rate Priority: 1
• Tax Rate%: 7.00%
• Apply to: All Groups
• Tax Rate Description: PST