Your sponsorship income is read off your most recent Notice of Assessment from the Canada Revenue Agency, with certain amounts such as social assistance and employment insurance taken out. If you did not file, or that number falls short, the officer looks instead at your Canadian income over the 12 months before the application. An officer can also ask for fresh proof later, when something suggests you can no longer carry the undertaking, and the count then shifts to the newest tax year.
(2)An officer may request from the sponsor, after the receipt of the sponsorship application but before a decision is made on an application for permanent residence, updated evidence of income if (a)the officer receives information indicating that the sponsor is no longer able to fulfil the obligations of the sponsorship undertaking; or (b)more than 12 months have elapsed since the receipt of the sponsorship application.