@clarityhealth
Since you are not the person who originally started the discussion, I also wanted to clarify that the use of an RV for business only applies if the RV is used for traveling away from your normal work area (your "tax home") to provide services to your clients. Your tax home is generally the city or major geographical area where you live most of the time and do most of your work. If you travel away from your tax home temporarily to perform work for clients, that is "Travel" as described in IRS publication, and travel expenses for business can be a deductible business expense.
However, if the RV is used to live in when you are working within the area of your tax home, that is not a deductible or reimbursable business expense. If an employee lives rent-free in an RV while living and working in the area of their tax home, the value of the free housing would be considered a fringe benefit that must be included as part of their taxable wages.
Lastly, if you are itinerant and have no regular place of work, and your work consists entirely of traveling from place to place for different clients, then you can't deduct or reimburse any travel expenses, because if you have no home, you are never traveling away from home for work.
