Neither of the answers below is correct. Gains and losses from short selling stock is not reported by a T5 or a T3 slip. CRA interpretation bulletins say that gains or losses from short selling securities are to be reported on the income account, not the capital gains account. Therefore the gains or losses from short selling stocks should be reported on Line 121 "Interest and Other Investment Income". However in the case of a loss due to short selling, Turbotax does not let me enter a negative number on line 121. Please advise further. Thank you
