Originally Posted by si camper
I don't know the facts or have anything to draw from but don't you also have to show that you live in your "2nd home" a certain percentage of your time to be able to deduct the interest. I know this wouldn't pertain to the OP since he is stated that he lives in his RV.
So far 30 years never had to show how much usage of the RV, have been deducting interest on/off over 30 years. Always have a tax professional do our taxes but not for that reason.............
Back to the OP as others have suggested consult with a CPA of other tax professional will get guidence here good, bad , and ugly...