This guide by @ekryski is excellent: “Sales Tax 101 for Canadian Startups” https://medium.com/@ekryski/sales-tax-101-for-canadian-startups-98d1a3df0bbe#---0-201.v8txh0vom …pic.twitter.com/oL7iyTGWk5
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looks like it's only helpful for businesses who do most of their gross $ in
(also, you still have to file PST).
yeah it's a hassle, if you use accounting software it helps with tracking hst collected and paid
you wouldn't want to use this method if 80% of gross income came from outside 
depending on how much you do you could collect for
and wait until CRA knocks and pay the penalty
might be less $ than actually doing it the right way
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