Gst Number Search Canada. Find out if your business needs a gst number (business number) in canada and how to get a gst number if you need one. Multiple options to check whether a.

A business number identifies your business to the cra and is needed for tax registrations, while a gst number allows for charging gst. For businesses in canada who are coming to or have passed the $30,000 annual revenue mark, they must consider that they need to register for a gst (goods and services tax).