I recently acquired a product from a U.S. internet retailer, for which the vendor confirmed a price of USD 99, amounting to approximately 135 CAD. I was charged 5% GST on my product, with customs duty at 8% and a processing cost of 9.95%. I opted to verify the prices related to customs duties for each good utilizing the Canada tax calculator. The tax calculator ascertains the import tax for various provinces in Canada and is available at no cost. https://hstcalculator.onl/