Q. Are there any costs of travelling we can deduct if we work for a company, and are full time RVers?
A. If you are talking about getting to your job, the answer is no. That is a non-deductible commuting cost. Even if you live in another state, you may have made your employer's location your tax home, which is usually the case.
If however your employer sends you to a different area as part of your work, you may have some flexibility. As an employee, your best recourse is to see if your employer has a plan for reimbursement. This is the cleanest and simplest way to recoup your costs. Barring that, much depends on the type of employment, if your employer sends you to off-site locations, etc. In this matter, details really count!