Earlier quoted context omitted.
Correct, it doesn't. IP geolocation is nowhere near precise enough. Remember, sales tax isn't something big like state-level. It's literally town -level, including tiny towns. Two sides of the same street can have a different sales tax. Not to mention all the extra rules, such as individual clothing items under $110 being exempt in New York.
It somehow works almost anywhere outside of NA? It's really not a crazy concept - estimate it based on geolocation and say "more exact will be available once you enter your address". The problem is, that genuinely negatively affect the sales because people see the true price of things.
I appreciate this can be done and countries in Europe do it, I just don't see how this is any better at all than status quo:
* Current State: we all know the quoted price doesn't include sales tax, which will be added to make the final price in checkout after we enter our address.
* Final State: we all know the quoted price will likely change during checkout, when we see the final price after we enter our address.
So we make things more complicated for vendors, and we make it not just acceptable but required that vendors use our IP addresses for geolocation, only to give us a maybe-right-maybe-wrong final price. Does anyone feel scammed by not having tax included on the price in the listings of Macy's online store?