FWIW, we're taking on TurboTax in Canada, https://simpletax.ca . The Canada Revenue Agency introduced an API this year that enables us to auto-fill much of the return: https://help.simpletax.ca/questions/how-to-use-afr .
When do you guys think you'll tackle Quebec? There's a tech scene here, tons of people would jump on-board instantly (as well as help develop it).
Québec is a challenging province because of Revenu Québec and Bill 101.