I am trying to use this mod for the State of Ohio, but there is a problem in that a zip code can span multiple counties and thus multiple tax rates.

Does anyone know of a way to either

a) Expand a regular zip to a zip+4 for better zip code matching to the state's list of tax rates? This would eliminate my problem or make it so insignificant I wouldn't care.

b) Does anyone know if there are any efforts being made to write web services integrations for ZenCart?

Some states like Kansas and Ohio offer a service where you push the address to the state over the 'net and they return back the proper tax rate for you. Here is Ohio's:

https://thefinder.tax.ohio.gov/Strea...ice/About.aspx

^ This would be the ideal situation since you could push an address to them instead of just a zip code, and they'd return the actual full value sales tax (county plus state combined). They also seem to push back the zip+4 in their test app.

I'd have no idea how to add this functionality but it seems to me like a logical extension of this existing mod since this functionality is being adopted by multiple states.

Anyone? :)