SidelineSwap is responsible for collecting GST, PST, and/or HST in applicable provinces and territories for Sales of tangible goods shipped from within Canada to Canadian buyers. Taxes are collected from the Buyer, not the Seller.
Please note that the tax rates varies depending on the buyer's location. In some provinces, as outlined below, there is no PST/HST tax so SidelineSwap only collects GST. SidelineSwap does not collect tax on the platform form orders shipping across the border from the US to Canada (though duties/taxes may be required to be paid by the Buyer upon delivery).
See below for an overview of sales tax amounts for each province and territory.