said by Guspaz:
If you had your Amazon order delivered to Vermont, for example, you would not have to pay sales tax.
... and if I had NCIX deliver something to Manitoba, I wouldn't pay any provincial sales tax either. Your point?
The fact that we have a federal tax is irrelevant. The methods for determining sales tax for Internet purchases in the US and Canada at source are exactly same system. It's based on business operations and/or physical presence and the delivery location of the receiving party. When I ordered a laptop from Cheetah Deals a year ago online I paid sales tax because they're a NYS company from out near Albany and they were shipping to a New York State address. When I order stuff from Newegg US (yes, I can order stuff using a Canadian credit card from Newegg US and have it shipped to my US address) to be delivered to a NYS address, I pay no sales tax because it comes from New Jersey.
You made the blanket claim that Americans don't pay sales tax on Internet purchases. That's completely false. Like Canada, it depends on where you're buying from and where you're shipping it to. If a Canadian decides to order something from Amazon and have it shipped to a NYS address, they're paying sales tax. End of story. If for some reason they're having it shipped to California they'll pay sales tax, too.