CRA recently started an “Educational Outreach” program. They say that they will be in contact with specific industries/businesses, and ask the business to provide CRA with information on their payor/payee relationship. The intention is to “Help industries that hire PSB’s understand their obligations.”
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The main thing to remember with these types of things is submission of records to CRA is optional. This is CRA trying to be “Helpful” (supposedly.) It’s not an audit.