https://www.canada.ca/en/revenue-agency/news/newsroom/tax-tips/tax-tips-2022/self-employed-canada-revenueagency-can-help-understand-tax-obligations.html
The 2021 tax-filing deadline for self-employed individuals is June 15, 2022
You have until June 15, 2022 to file your 2021 tax return if you or your spouse or common law-partner are self-employed.
The 2021 payment deadline is April 30, 2022
Although your 2021 tax-filing deadline is June 15, 2022, your payment is still due on April 30, 2022.
Since April 30, 2022 falls on a Saturday, your payment will be considered paid on time if we receive it, or it is processed at a Canadian financial institution, on or before May 2, 2022.
If you filed your 2020 income tax and benefit return and qualified for interest relief, you have until April 30, 2022 to pay any outstanding income tax debt for the 2020 tax year to avoid future interest charges. This applies to the tax owing for the 2020 tax year only, and not for any previous tax year.
Even if you owe tax, don't risk having your benefits interrupted by not filing. If you cannot pay your balance owing, we can work with you on a payment arrangement.