When are my corporate tax returns and final tax payments due?
Generally, the balance of tax payable is due 2 months after the end of the taxation year. However, the tax is due 3 months after the end of the taxation year under certain conditions.
Please visit www.ccra-adrc.gc.ca/E/pub/tg/t4012/t4012-03-e.html#P84_4667 for more information.