For ordinary Canadian individuals, the personal tax returns have to be filed on or before April 30. Income tax filing deadline for 2014 was extended to May 5, 2015.
Due date falls on weekend or a holiday
When the due date falls on a Saturday, a Sunday, or a holiday recognized by the Canada Revenue Agency (CRA), your return will be considered to be filed on time or your payment to be made on time if the CRA receives it or it is postmarked on the next business day.