If Verizon advertises, say, $50/mo cellphone service, they're actually going to charge you an extra $15 or so, but they won't tell you what you're paying in taxes until you've actually signed up for the service and paid the switching costs. I want Verizon to advertise $65/mo ($50/mo base + $15/mo fees).
But how does Verizon run a national advertised price and include the taxes when telephone taxes vary based on your city, county, and state, and sometimes which part of the city/county.
If they mail it to you, then sure, they should be able to calculate it assuming your main service address is the same as your mailing address. But even if they have it in the window at their shop, they could include the taxes as if you lived at the shop, but actual taxes will be based on your service address.
- Use the highest possible taxes and fees for any address in the service area of the store. Nobody is going to feel deceived if it turns out they had to pay less money for their phone service. - Provide a low and high range of taxes and fees for that same area and fine print that taxes vary based on service location. Verizon can't charge more than the high amount, and the low amount has to correspond to at least one service area that is actually billed that amount. - Provide a table listing out taxes, fees, and total price for each tax zone within the service area. This could be combined with the other two, and probably should be available unless there's, like, 200 different tax zones in the area of the store.
All of these are a darned sight better than "we don't have to mention anything about taxes and fees until you're a month into the contract and they can be any number we please".
In EU shops are made to show price per kilogram / liter too.
I'm still not seeing why that experience requires an account, so while this response is academically interesting, it doesn't actually address the purpose of my comment. Any reason why these calculations can't be performed without an account? Any reason why needing to enter the street address is functionally different from needing to enter the zipcode for this functionality, or were you just attempting to add detail/nuance?