Mahboob, here is a correction for the sales tax rules for Canada. Our interpretation was incorrect - we now have an interpretation from a major accounting firm.

New Brunswick: 15%
Newfoundland and Labrador: 15%
Nova Scotia: 15%
Ontario: 13%
Prince Edward Island: 15%
Quebec: 14.975%
all other provinces or territories 5% (British Columbia, Alberta, Manitoba, Saskatchewan, Yukon, Nunavut, Northwest Territories)