CRA Now Palling Around with PayPal
CRA has required PayPal to disclose sales and other transaction records for Business Account Holders from January 1, 2014 to November 10, 2017. It is expected CRA will review records for unreported sales. For more details, see https://www.paypal.com/ca/smarthelp/article/cra-information-request-faq3755
On an unrelated note, you can now also pay your taxes via PayPal. For more information, see https://www.canada.ca/en/revenue-agency/services/about-canada-revenue-agency-cra/pay-credit-card.html