I noticed that my mom's accountant seemed to calculate the ACBs of her stocks incorrectly.
Suppose you make one purchase, one sale and another purchase of the same stock within the same year. The transactions are
Jan 5 ABC buy 100 shares at 50 per share
Jun 5 ABC sell 100 shares at 45 per share
Nov 5 ABC buy 100 shares at 40 per share
My understanding is that you have incurred a loss when you sold ABC on Jun 5, so you would report a net loss of 5*100 = 500 dollars.
However, the accountant calculated the ACB of ABC by combining both purchases and concluded that the net gain/loss was 0 because ACB=45 and the selling price was 45. |