I worked for Avalara.com for a while: they help companies calculate sales tax ba...

tobych on April 11, 2012 | parent | context | favorite | on: Ziptastic: Isn't a zipcode enough?

I worked for Avalara.com for a while: they help companies calculate sales tax based on location. I learned there that the five-digit ZIP code is certainly not enough. Some five-digit ZIP codes cross state boundaries, for one thing.