As lsc pointed out above, that's not the case at all. Amazon is refusing to collect taxes on behalf of its customers, not refusing to pay its own taxes.
By law, citizens are supposed to tally up what they bought from internet retailers over the course of the year and pay any remaining sales tax on April 15th. Shockingly, this isn't happening, and the sales taxes aren't being paid at all. So these states want Amazon to behave like a bricks and mortar retailer, and collect the tax at time of sale instead.
Amazon doesn't want to collect sales tax because not doing so makes their prices look lower than competitors like Barnes and Noble, which does collect sales tax. Nothing more, nothing less.
and
“The sales tax collection is very complicated. The right place to fix this is with federal legislation.”
edit: what part of "No Tax or Duty shall be laid on Articles exported from any State." is unclear?
Based on this observation, I find the explanation that Amazon's not interested in spending the money to track state and local sales tax policies to be more plausible.
If B&N is calculating "Shipping + Tax" while Amazon is just calculating "Shipping" there will be a slight difference in price. And why not go with the cheapest?
Maybe so, but go look at sticker prices of Amazon vs BN. I bet 9 out of 10 times, if not more, Amazon is cheaper at the sticker price level.
I am not a tax expert, but here are some examples I know of: A buddy of mine recently purchased a car while living in Texas, then moved to California a few months later and was required to pay the difference in sales tax on it before registering it.
New Hampshire doesn't have sales tax. The state of Massachusetts assumes people who reside in border towns will be purchasing goods there and automatically bills a yearly flat rate.
This is why I think it's about them wanting their goods to look cheaper rather than about any actual pain. If it was about the actual pain, they'd support the idea of different sales tax for every little hamlet because it raises the barrier to entry for people like me, e.g. selling my widgets myself rather than going through amazon.