Yesterday's tax seminar brought to my attention a December 2010 ruling (Minick v. Comm., TCM 2010-12) that a taxpayer living in an RV was not considered to be away from home.
In an article I recently wrote regarding travel expenses, I mentioned that in my opinion, as an RVer, your tax home was where you parked. Remember, travel expenses can only be taken while away from home. In this case, a field engineer worked in Georgia and South Carolina and lived in his RV when working. Although he had a residence in North Carolina, he never returned to it for business purposes. His deduction for travel expenses were denied.