I believe they are required to provide a list of your transactions by company for the year. They dont really calculate your Gains or Losses properly as they do not know or incorporate your ACB continuity from the prior year(s). They do work okay if it is all itransacted n the current year and only in this case you would have an accurate ACB, imo. I use a reasonably simple spread sheet by stock, recording the buys and sells, determining capital gains and valid/non valid losses (under 30 days to a re buy) as I go. Takes a bit of accounting discipline but pays off big time at tax time or any time you want to know if you can justify taking an actual loss to offset gains.