 SEATTLE--BUSINESS WIRE--Avalara, Inc. NYSE: AVLR, a leading provider of cloud-based tax compliance automation for businesses of all sizes, today announced the availability of Avalara AvaTax Advanced Transaction Rules ATR. ATR allows businesses to create, modify, and apply business and taxability rules that can be used before and after a tax calculation occurs. With ATR, businesses can define and relate tax content decisions with enterprise resource planning ERP, ecommerce, and other bil 