I am in the situation where the sponsoring spouse is a stay-at-home parent with no separate financial resources. The forms say that income is not a prerequisite, but the form asks for income (I saw below that someone responded that this is not a problem) and the attachments ask for the Notice of Assessment from Canada Revenue Agency. What to do if there isn't one? My spouse is not required to file tax returns and does not receive a Notice of Assessment. Thanks.