SpreeAvataxCertified is the only officially certified Avatax solution that integrates with SpreeCommerce. With this extension you can add instantaneous sales tax decisions to your store.
From Avalara's own explanation of the certification program:
Relax. It’s certified.
Our “Certified for AvaTax” Program features integrations that perform at the highest level, providing the best possible customer experience.
Avalara’s partners who have created certified integrations for AvaTax have demonstrated that those integrations contain elements which are essential to providing customers with easy-to-use software that gives accurate sales tax calculations. The certification criteria used to demonstrate these elements are based on Avalara’s years of experience integrating into ERP, ecommerce and point-of-sale applications.
gem 'spree_avatax_certified', github: 'spree-contrib/spree_avatax_certified', branch: 'master'
bundle exec rails g spree_avatax_certified:install
Configure specific users to utilize Avalara Entity Use Code, and Exemption number; Customer Code will be the user's id. Exemption Number are sourced from the Avalara site and the Avalara Entity Use code is a searchable drop down that was previously configured in the system.
Be sure to bundle your dependencies and then create a dummy test app for the specs to run against.
$ bundle $ bundle exec rake test_app $ bundle exec rspec spec
Copyright (c) 2016 Boomer Digital, released under the New BSD License