aaryn:
You have not stated whether or not you are registed and have a GST/HST number. It is not clear if the amount in your form is for GST or for HST, which would make a difference to the calculation. If you are registered, and do not use the quick method, you would report the taxes and ITCs on a GST 34 form. Ignore the GST question on your T2125.
https://www.canada.ca/en/revenue-agency/services/tax/businesses/topics/gst-hst-businesses/complete-f...
