sales tax calculation (city limits vs not in city limits)
<p>I've been tasked with creating a tool to calculate sales tax. So I signed us up for a monthly update of all zip codes and their associated tax rates. The problem I'm running into is that in 1 zip code you may have some addresses that are in city limits (so you have to charge city sales tax) and another that is out of city limits (then you dont charge city sales tax). Every example of tax calculation I find is based off zip code...not necessarily street address. Can anyone provide me some insight on how I go about figuring out exact sales tax? </p>

<p>Update: This would be sales tax on a website and also a tool for salesman to reference when cutting quotes.</p>
