I recently came across an article on the Financial Post. Article. The article was talking about how frequently buying or selling stock in your TFSA can make your prone to an audit by CRA. Apparently, if you use your TFSA for any "business" use, all your income in your TFSA can become taxable. I am not going to go into too much details as it is well explained in the articles. I just wanted to point out the article to everyone so that you don't find yourself in such situation. However, if you follow our philosophy of slowly but wealthy where you buy and hold then you'll be just fine. Keep saving, investing and wealth growing. Cheers.