Normally, tax return filing deadline is April 30. However, the Federal government has postponed it in light of COVID-19. While the new deadline was on June 1st, it is not exactly your final chance. Canada Revenue Agency has advised that they will not apply penalties as long as you file before September 1st.
However, you must file the return and pay any tax liability (if any) by August 31st to avoid being penalized.
If you haven’t filed your taxes yet, remember - Tap.Tap.Done! TaxWellDone