While most Canadians are familiar with the obligation to file an annual tax return and to pay income taxes owed by the end of April each year, there are in fact many more tax filing and payment deadlines imposed on individuals or businesses throughout the calendar year. Fortunately, the rate of compliance with those requirements is high, as most Canadian taxpayers meet their tax obligations, consistently filing returns and making any required payments on a timely basis. Where such tax filing or payment obligations aren’t met, however, the Canada Revenue Agency has the authority to impose both penalties and interest charges.