The Louisiana Supreme Court recently denied the state's attempt to collect sales tax on the sale of an RV to a Montana LLC. Thomas v. Bridges, No. 2013-C-1855 (La. 2014).  The LLC was formed for the sole purpose of avoiding RV sales tax (saving the buyer as much as $47,000).  The state argued that the LLC veil should be pierced and the tax should be assessed to the LLC's sole member claiming fraud. The court disagreed, explaining that "taking actions to avoid sales tax does not constitute fraud. Although tax evasion is illegal, tax avoidance is not." 

There were problems with the state's attempt from the outset.  First, the sale occurred  in Louisiana, but the RV was housed in Mississippi.  Even if the LLC were to be disregarded, Mississippi, it seems to me, would be the state that should be asserting the claim.  Second, the state attempted to collect from the LLC's member before ever trying to collect from the LLC.  Thus,  the veil-piercing claim was being used as a post hoc justification for the attempt to recover from the LLC's member and was not properly raised below.  

This "legal loophole" (which is redundant because if it's a loophole, it's legal and…