Earlier today, the Tennessee Department of Revenue (DOR) submitted a new sales and use tax regulation for publication titled “Out-of-State Dealers” (Rule 1320-06-01-.129) that would administratively create an economic nexus threshold. With the submission, Tennessee becomes the most recent addition to the growing list of states seeking to directly attack the Quill physical presence standard.  As detailed in our prior blog, both Alabama and South Dakota are already litigating whether their economic nexus standards are sufficient to satisfy the dormant commerce clause substantial nexus requirement.  Additionally, at least 11 different bills in eight different states have been introduced in state legislatures so far in 2016.  With states continuing to attack Quill from all angles, remote sellers are scrambling to keep up with the increasingly volatile nexus landscape. (more…)