Resolving disputes
What to do if you disagree with the Notice of Assessment you received.
Interest and the late-filing penalty
Information about interest payable (if you pay late) and the late-filing penalty (if you file late and owe taxes).
All rates Find information on federal and provincial/territorial tax rates, prescribed interest rates, prescribed interest rates for leasing rules, exchange rates, mileage rates and more.
Important dates
Due dates for filing returns, making payments, receiving credits and benefits, and more.