How to Lose by Winning:CRA targets most successful TFSA inv.per article in Van Sun, June, 2015: "profit" through business activity is taxable in TFSA though cap gain is not. Business profit could be any transaction with a gain & CRA provides no clear guidelines except that more transactions and profit point to business activity (implying that we capital gains investors do few not very profitable transactions). Despite CRA vagueness about the rules, it is very clear that their goal is to take your money if you have a lot - $400K in TFSA and you are in danger, probably anything near $400K is risky. (I think I've dodged a bullet). BNK is the right kind of investment for your TFSA - little trading required & only modest gains to be made. -GLTA! https://www.vancouversun.com/business/cayo+lose+winning+targets+most+successful+tfsa+investors/11132470/story.html