It Grows Slowly, This Revenue Loss

...but it grows unavoidably and becomes very large over time.

So says the author of a study on the effects of TFSAs (tax-free savings accounts), Rhys Kessselman, a School of Public Policy professor at Simon Fraser University. As the money accruing in those accounts grows, the revenue losses to both federal and provincial coffers grow commensurately over time. You will find other facts of interest here as well: