Tax · 8 min
T-Slips Explained: T3, T4, T5, T5008 in Plain English
By Harry Vadalkar, CFA · Updated 2026-05-31
This is the question I get most often from Canadian students starting their licensing journey: T slips explained Canada? Here's the short, honest answer — followed by the detail you actually need.
The 60-second answer
- T3: trust income (mutual funds)
- T5: investment income (dividends, interest)
- T5008: transactions (capital gains/losses)
Why this matters for your wallet
Most Canadians lose more money to not knowing this than to bad investments. The marginal cost of getting it right is one evening of focused reading. The marginal cost of getting it wrong compounds for decades.
If you're studying for a CIRO exam — IFC, CSC, CIRE, RSE, ISE, or Derivatives — this topic shows up. If you're just trying to grow your TFSA and RRSP without paying $200 to a robo-advisor, this still saves you money. Either way, take 5 more minutes.
The deeper take
The Canadian regulatory landscape changed dramatically in 2023 with the IIROC + MFDA merger into CIRO. What this means in practice: many of the licensing exams you've heard about are being consolidated, retired, or renamed. If you're looking at older guides, double-check the date — content from 2021 or earlier may reference exams that no longer exist or have changed structure.
For exam-bound readers, the practical impact is this: stick to courses and instructors that have been actively updated for 2024–2026. Outdated content costs marks and money.
For investors, the impact is reassurance: the new CIRO framework holds advisors to a tighter Client-Focused Reform (CFR) standard. If you're working with an advisor, you should expect annual KYC reviews, documented KYP analysis, and a clear conflict-of-interest disclosure.
Ready to pass on first try?
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Frequently asked
What's a T3 vs T5?
T3: trust income (mutual funds)
When do they arrive?
T5: investment income (dividends, interest)
What if mine is wrong
T5008: transactions (capital gains/losses)
Related reading: Ifc Masterclass Review · Wealthy Canadian Book Review