If you use your RV for business use only (as in you rent it out on Airbnb) and you do not use it for personal travel at all, you may qualify for a Section 179 deduction. If you don’t live in it or travel for recreational purposes, and every overnight stay is for business, this qualifies as transient lodging. Both transient lodging and overnight stays for business qualify for Section 179 deductions, which give you big benefits on your personal taxes. Just make sure you understand the law, and seek help before you file if you need it.