Paying the CRA with a Credit Card (Through a Third Party)

The CRA does not accept credit card payments directly. However, you can use a third-party service provider like PaySimply or Plastiq to pay with a credit card, PayPal, or Interac e-Transfer. These providers will send your payment to the CRA for you.

Be aware that these services charge a processing fee, which is a percentage of your payment. Using a third-party service is a good option if you want to earn credit card rewards or if you need to defer the payment from your bank account.

Source: https://www.canada.ca/en/revenue-agency/services/payments/payments-cra.html