Further to its message dated March 18, 2020, the Canada Revenue Agency (CRA) will continue to recognize a Form T183, Information Return for Electronic Filing of an Individual's Income Tax and Benefit Return, and the T183CORP, Information Return for Corporation Filing Electronically, that contains an electronic signature as having met the signature requirements of the Income Tax Act as a temporary administrative measure for the remainder of the filing season.
If an individual or a corporate taxpayer wishes to file their income tax return through an electronic filer, they must authorize the electronic filer to do so by completing a T183 or a T183CORP.
For more information, refer to the blog posted in March 2020, CRA Extends Filing and Payment Due Dates.