Even if you have no income - you must file an income tax return. If you want to claim :To receive the Goods and Services Tax/Harmonized Sales Tax (GST/HST) credit, including any related provincial credits;
To receive Canada Child Benefit payments, including related provincial and territorial payments;To carry forward/transfer any unused portions of your tuition, education, or textbook amounts;. Here is where you will find our software for the years you need to file (Please note that you can choose to use our Free versions- just be sure not to upgrade or you will need to pay)
https://turbotax.community.intuit.ca/replies/2647677
https://turbotax.community.intuit.ca/replies/2647969
