CRA challenges TFSA day trading

In contrast to s. 146(4)(b), which exempts an RRSP’s income from a business to the extent that the income is from trading qualified investments (see 2014-0538221C6 F), s. 146.2(6) indicates that a TFSA is taxable on its taxable income from any business.

CRA apparently is challenging day trading within TFSAs, and a case is expected "in the next year or two."

Neal Armstrong.  Summary of Arthur B.C. Drache, "TFSAs as a Business," The Canadian Taxpayer, January 2, 2015 – Vol. xxxvii No. 1, p. 5 under s. 146.2(6).