This chart and table from the most recent Canada Census in 2021 shows where you would fall in terms of percentile for individual after-tax income, based on age. You can adjust whether the chart shows employment (before-tax) or after-tax income by selecting the "Income Source" option.

The 'Characteristics' visualization shows average and the 10th, 25th, 50th, 75th and 90th percentiles for selected income sources, various population groups and geography. Enter an income value to view its standing in relation to these statistics.

The '2019/2020 Income' visualization shows median values of selected income sources by age and selected geographies for 2019 and 2020. This visualization aims to show the effects of the COVID-19 pandemic on various income sources across Canada.

https://www12.statcan.gc.ca/census-recensement/2021/dp-pd/dv-vd/income-revenu/index-en.html

So, for instance if your age is 30 and your after-tax income is $73,500 or higher, that would place you at or above the 90th percentile in terms of income for people the same age as you. You can also find the median income for each age just from the 50th percentile.

Just interesting data regarding income in this country that people should probably know.