https://www.canada.ca/en/revenue-agency/services/about-canada-revenue-agency-cra/pay-online-banking.html
How to pay your individual taxes online
Sign in to your financial institution's online banking service for individuals.
Under "Add a payee" look for an option such as:
CRA (revenue) – current-year tax return
Use this option to make a payment for your current tax return. You can use this option only once per return.
CRA (revenue) – tax amount owing
Use this option to pay any amount owing.
CRA (revenue) – tax instalment
Use this option to make payments toward the future tax year.
CRA (revenue) – Canada emergency benefit repayment
Use this option to repay a Canada emergency response benefit, Canada emergency student benefit, a Canada recovery benefit, Canada recovery sickness benefit, or a Canada recovery caregiving benefit.
Enter your 9-digit social insurance number as your CRA account number.
Make sure the number is accurate so that the CRA can apply your payment correctly.
https://www.canada.ca/en/revenue-agency/services/payments-cra/individual-payments/income-tax-instalments/who-pays-instalments.html
Required tax instalments for individuals
Who has to pay
You may have to pay tax by instalments if your income does not have enough tax withheld or if you are self-employed, have rental or
investment income, (such as interest and stock trading gain)
certain pension payments, or have income from more than one job.