When should I file my first tax return?

You should file your first tax return in Canada by April 30 of the year following the tax year. For example, if you earned income in 2023, your tax return for that year should be filed by April 30, 2024. If you owe taxes, payment is also due by this date to avoid penalties and interest charges. Keep in mind that if you are self-employed, the filing deadline is June 15, but any taxes owing are still due by April 30 to avoid interest charges.