$100 invested in 1984 without any increase in actual value would be worth $266 today, so sold at break+-even, the imaginary but taxable capital gain would be 2/3 x 166, or $111.
Therefore, even if you broke even -- the investment made zero -- you are being taxed on recovering $111 of your own pre-tax invested money.
https://www.inflationtool.com/canadian-dollar/1984-to-present-value?year2=2024&frequency=yearly
Read the comments especially Marc in Calgary.
https://www.smalldeadanimals.com/2025/08/06/are-you-more-of-an-albertan-or-a-big-city-canadian/
Aren't they just wonderful! Her add to post is interesting. I have a son working on a pipeline in B.C. that was approved many years ago that I hadn't heard of as it never makes the news. Previously he worked on Trans Mountain which was major news daily.
https://www.smalldeadanimals.com/2025/08/06/i-want-a-new-country-144/