There is so much discussion on this topic so sorry if a prior thread has the answer but I would appreciate any comments specifically pertinent for my case. I own a home that I lived in or 10 years during which I rented out a room thru AirBnB. During those 10 years I not include any deduction for depreciation when filing. I then moved out of state and now rent out the entire house and plan to start to include a deduction for depreciation. Should the start date be when I first rented out the room (even though I did not take any deduction for depreciation) or the point that I started to rent the entire house? Also, how should I handle the fact that the type of rental (room in home vs. entire home) changed after 10 years? How do I interpret "the date the property was first advertised for rent" when the nature of "the property" changes from a room to the whole house? Should/could I consider these as two separate instances of rental? I understand that the start date is used to determine the cost basis for the purposes of the depreciation calculations. Obviously there is a large difference between the cost basis for a room vs. the whole home. Lastly, if I had been using depreciation during the period I was renting out just a room, and now rent out the entire home, how would one handle the new cost basis for the asset being rented?
