StudioTax is a is free, CRA approved Income Tax preparation software that you can download and use to complete your Income Tax return. StudioTax would like to emphasize that this software is free for everyone, and is not linked to your level of income.
StudioTax is simple to use and well-regarded in the community as a helpful tool. Versions of SimpleTax are available for back taxes: you can download years 2004 through 2011.