The tax saving account allows you to long USA stocks, options. If you have no any other tax saving accounts, then you are allowed to deposit about CAD $35,000 into it (Tax saving account starts from 2008, check with your bank the max you can deposit). A lot of banks allowed you to open the Tax saving account to long USA stocks & options. Any profit in the Tax saving account will not be taxable.
However, if you want to short options, then Tax saving account will not allow you to do .
Wish all of you happy new year, make more money in the stock trades.