This sounds like a nice module and I am looking to adapt it to Orange County California.

I have a question about implementation: Why the reliance on zip codes, rather than say, city names. The BOE provides both CVS and Excel versions of the tax rates linked to City and County names, but no zip code information.

Can this module be adapted to work with city names instead of zip codes? Not sure where to get the necessary zip code information.

Thanks for the contribution.

Regards,

Mark Harrison