Are you also using the RV for personal trips? If so, you will need to determine what percentage of use is devoted to rental versus personal use. I did it by counting the number of days personal-use against number of days rental.
Using an accelerated depreciation may come back to bite you when you sell the vehicle. Depreciation reduces your cost basis, thereby increasing your gain on sale of the RV associated with rental use. If you are renting it full time, the entire gain could be considered taxable. I suggest you obtain the advice of tax counsel experienced in this area on the depreciation period to be used. If you are renting only a few times per year and continuing to use it mostly for personal,
