I have a question. I am a teacher and I often spend a summer or a semester teaching outside the country and away from home. During the time I am away I usually rent out my house as a furnished apartment. I think when I first did this in 2009-2010, I converted from personal use to rental in summer 2009 and then from rental to personal use at the end of 2010. During those 2 years, I declared the depreciation (as a loss). But it was a few years before I rented my home out again and I believe that I never again deducted depreciation (even though I have rented several times over the years, each time converting from personal to rental use and then back again at the end of the semester away; I declared all the rental income, I just didn't declare depreciation). What if anything does this mean about how I should approach declaring depreciation going forward? Is what I have done a mistake? Should I try to correct it? Thanks for your thoughts.