The loan on a camper/mobile home can be deducted on schedule A as a home mortgage. Whether it is possible (or more advantageous) to deduct it as a work-related travel expense will depend on several factors. Is your husband a W-2 employee or self-employed (schedule C)? What is the nature of the work and travel? Do you have a "tax home" Generally, your tax home is the area of the city where your main place of work is. (Depending on your circumstances, you might not have a tax home for this definition.)
