Content in this Article What are GST, PST and HST? Do I Have to Charge Sales Tax? Which Sales Taxes Should I Charge? What are Zero-Rated Supplies? How Much are GST, PST and HST? How GST and HST Work Benefits of Registering for GST/HST How to Register for GST/HST How PST Works When Do I Charge PST? How to Register for PST Filing Your Business Taxes Online Tips and Considerations