Cra backdating gst registration
Where an auditor discovers an invoice without the required GST/HST registration number, a reasonable amount of time is normally granted to obtain this information from the supplier.
Anyone may check a supplier's number at or Quebec.
This could happen even if you did not include GST in the price of those sales. Watch: In working out your projected GST turnover, don't include amounts you receive for the sale of a business asset (such as the sale of a capital asset) or for any sale you made, or are likely to make, solely as a consequence of ceasing or substantially and permanently reducing the size of your business.