Looking for answers for this too. Purchased a home in 2004 with my brother for 244K and then bought out his share in 2015 for 83K. Used 83K for deprecation beginning in 2015 when it was used for a rental. But should have used the full purchase price. Value of house is now 240K. I bet if we sold it we would have capital gains even though it is 4K less.
