Question: what documents do you need to file taxes canada?
Answer: Slips. n T4 slips (Employment income) n Employment insurance benefits (T4E) n Interest, dividends, mutual funds (T3, T5, T5008) ... 
(Tradespersons & apprentice mechanics) n Medical expenses. n Transit pass receipts. ... 
Other documentation. n Notice of Assessment/Reassessment. n Canada Revenue Agency correspondence.