Sales Tax is different everywhere. To my knowledge it runs between 5% and 15% in Canada depending on the Province. Here in the States it depends on the individual State. For example in my State of Louisiana the Sales Tax is 4% and then each Parish has a Sales Tax. In my case my Parish is Orleans (New Orleans) which has a sales Tax of 5% (The Highest rate allowed in Louisiana) for a total of 9% on every purchase. Other states have no Sales Tax at all.