Earlier quoted context omitted.
> If you don't give your address, but the price depends on your address, how does the store know how much to charge you? I don’t want to give my address to see the price. After I’ve decided to buy the thing, I’m okay disclosing who I am. But simply to see the price? Also, if I’m a retailer and people are giving me their address before I price them, on what planet am I not going to use that to help me price discrimina…
You don't need the address, you just need to know in which city they live, AT MOST. Taxes don't change every street.
Ha. Oh boy. I remember when an engineer at a POS system start-up said something similar. It's like when someone decides they're going to roll their own time zone calculation.
In case you're curious, yes, two people in the same city can be in different counties, different school districts, different water boards, et cetera. Each of those typically has taxing authority. And this is before we get into crap like urban enterprise zones [1].
[1] https://en.wikipedia.org/wiki/Category:New_Jersey_Urban_Ente...