We have used a small portion of our home for my wife's business for years. From 2018 through 2023, Turbo Tax calculated the exact same depreciation value ($711) each year for line 42 of form 8829. This was based on a basis of $210,000, usage of 13.2% of the home which yielded a deprecation percentage of 2.564% hence the $711. We moved out of the house in September 2024 and so only used it for the first 9 months of the year. However Turbo Tax is populating a value of $1,343 for line 42 and I cannot understand why. All of the values for home basis, usage percentage and deprecation percentage are the same yet line 42 is nearly double what it normally would be.
