I used to live in Ontario's Niagara Region, and I have a friend who is interested in leasing my commercial property, which is around 3550 square feet. I promised to pay $6000, which includes GST and HST taxes. I calculated the value-added tax with a tax calculator that combined federal and provincial taxes. The Canada tax calculator is free and ad-free. The Ontario tax calculator produces useful data by downloading a PDF file that can be accessed from anywhere.https://hstcalculator.onl/