If the invoice doesn’t strictly identify the HST AND does not have a business number then no self-assessment is required and no HST rebate should be taken. The transactions should be processed using an E0 tax code.
CRA guidelines with respect to documentation required to claim tax credits can be summarized as follows:
Since Uber and AirBnB invoices/receipts generally do not include the necessary information we are not required to self-assess and should not claim an HST rebate.
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