If you’re entitled to a refund,
the time between when you file and when you receive your refund depends on a
number of factors. If you NETFILE your return, the average processing time is
10 business days. Paper filers can tack on another four to six weeks to that
time. If you are getting your refund cheque by mail, this adds several extra
days to your wait time.
https://turbotax.intuit.ca/tips/wheres-my-refund-3910