DIY cost segregation in its purest form would be you or your tax preparer generating a guesstimate of the short-life property found in your asset. It is legal providing you do not materially overstate the amount of depreciation. However, the IRS standard for calculating depreciation is specific. Cost segregation requires assigning the “proper recovery period” to each asset. A commercial or residential building may have over 100 short-life components. Visit here https://www.diycostsegregation.com/
