Personal income tax
Canadian tax law requires tax residents to file their own personal income tax and welfare subsidies (tax refunds) each year in order to determine whether you have paid the correct amount of income tax, which government subsidies you can apply for, and whether you are eligible for various government subsidy programs based on your income level.
Income earned in and outside Canada must be reported, including: full-time, part-time and self-employment income, as well as pensions, savings plans, investments and benefits.