How much income tax one pays is based on how much money (income) they made, not their age.
But, most young people get a nice tax refund because they don't typically make much money. 😉
Our TurboTax Free edition is totally free to prepare and file a return and is very easy to use. Why not plug your info in, to see where you stand for tax year 2017?
Check out TurboTax Free for tax year 2017 here: https://turbotax.intuit.ca/personal-tax-software/free-online.jsp